mirror of
https://github.com/jpetazzo/container.training.git
synced 2026-02-15 10:09:56 +00:00
Compare commits
54 Commits
gitpod
...
2020-05-he
| Author | SHA1 | Date | |
|---|---|---|---|
|
|
de074e9da5 | ||
|
|
ba826cbb99 | ||
|
|
b62afded35 | ||
|
|
e29f24453a | ||
|
|
db4f73ab84 | ||
|
|
eb9052ae9a | ||
|
|
c8f04c9b3b | ||
|
|
8f85332d8a | ||
|
|
0479ad2285 | ||
|
|
986d7eb9c2 | ||
|
|
3fafbb8d4e | ||
|
|
5a24df3fd4 | ||
|
|
1bbfba0531 | ||
|
|
8d98431ba0 | ||
|
|
c31c81a286 | ||
|
|
a0314fc5f5 | ||
|
|
3f088236a4 | ||
|
|
ce4e2ffe46 | ||
|
|
c3a05a6393 | ||
|
|
40b2b8e62e | ||
|
|
efdcf4905d | ||
|
|
bdb57c05b4 | ||
|
|
af0762a0a2 | ||
|
|
0d6c364a95 | ||
|
|
690a1eb75c | ||
|
|
8c503f1e69 | ||
|
|
c796a6bfc1 | ||
|
|
0b10d3d40d | ||
|
|
cdb50925da | ||
|
|
ca1f8ec828 | ||
|
|
7302d3533f | ||
|
|
d3c931e602 | ||
|
|
7402c8e6a8 | ||
|
|
1de539bff8 | ||
|
|
a6c7d69986 | ||
|
|
b0bff595cf | ||
|
|
6f806ed200 | ||
|
|
0c8b20f6b6 | ||
|
|
2ba35e1f8d | ||
|
|
eb0d9bed2a | ||
|
|
bab493a926 | ||
|
|
f4f2d83fa4 | ||
|
|
9f049951ab | ||
|
|
7257a5c594 | ||
|
|
102aef5ac5 | ||
|
|
d2b3a1d663 | ||
|
|
d84ada0927 | ||
|
|
0e04b4a07d | ||
|
|
aef910b4b7 | ||
|
|
298b6db20c | ||
|
|
7ec6e871c9 | ||
|
|
a0558e4ee5 | ||
|
|
16a62f9f84 | ||
|
|
2ce50007d2 |
@@ -1 +0,0 @@
|
||||
image: jpetazzo/shpod
|
||||
@@ -1,3 +1,10 @@
|
||||
# This file is based on the following manifest:
|
||||
# https://github.com/kubernetes/dashboard/blob/master/aio/deploy/recommended.yaml
|
||||
# It adds the "skip login" flag, as well as an insecure hack to defeat SSL.
|
||||
# As its name implies, it is INSECURE and you should not use it in production,
|
||||
# or on clusters that contain any kind of important or sensitive data, or on
|
||||
# clusters that have a life span of more than a few hours.
|
||||
|
||||
# Copyright 2017 The Kubernetes Authors.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
@@ -187,7 +194,7 @@ spec:
|
||||
spec:
|
||||
containers:
|
||||
- name: kubernetes-dashboard
|
||||
image: kubernetesui/dashboard:v2.0.0-rc2
|
||||
image: kubernetesui/dashboard:v2.0.0
|
||||
imagePullPolicy: Always
|
||||
ports:
|
||||
- containerPort: 8443
|
||||
@@ -226,7 +233,7 @@ spec:
|
||||
emptyDir: {}
|
||||
serviceAccountName: kubernetes-dashboard
|
||||
nodeSelector:
|
||||
"beta.kubernetes.io/os": linux
|
||||
"kubernetes.io/os": linux
|
||||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||||
tolerations:
|
||||
- key: node-role.kubernetes.io/master
|
||||
@@ -272,7 +279,7 @@ spec:
|
||||
spec:
|
||||
containers:
|
||||
- name: dashboard-metrics-scraper
|
||||
image: kubernetesui/metrics-scraper:v1.0.2
|
||||
image: kubernetesui/metrics-scraper:v1.0.4
|
||||
ports:
|
||||
- containerPort: 8000
|
||||
protocol: TCP
|
||||
@@ -293,7 +300,7 @@ spec:
|
||||
runAsGroup: 2001
|
||||
serviceAccountName: kubernetes-dashboard
|
||||
nodeSelector:
|
||||
"beta.kubernetes.io/os": linux
|
||||
"kubernetes.io/os": linux
|
||||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||||
tolerations:
|
||||
- key: node-role.kubernetes.io/master
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
# This is a copy of the following file:
|
||||
# https://github.com/kubernetes/dashboard/blob/master/aio/deploy/recommended.yaml
|
||||
|
||||
# Copyright 2017 The Kubernetes Authors.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
@@ -12,19 +15,12 @@
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
# ------------------- Dashboard Secret ------------------- #
|
||||
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
kind: Namespace
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard-certs
|
||||
namespace: kube-system
|
||||
type: Opaque
|
||||
name: kubernetes-dashboard
|
||||
|
||||
---
|
||||
# ------------------- Dashboard Service Account ------------------- #
|
||||
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
@@ -32,62 +28,147 @@ metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kube-system
|
||||
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
|
||||
|
||||
---
|
||||
# ------------------- Dashboard Role & Role Binding ------------------- #
|
||||
|
||||
kind: Role
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
metadata:
|
||||
name: kubernetes-dashboard-minimal
|
||||
namespace: kube-system
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
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"]
|
||||
- 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:
|
||||
name: kubernetes-dashboard-minimal
|
||||
namespace: kube-system
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: Role
|
||||
name: kubernetes-dashboard-minimal
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: kubernetes-dashboard
|
||||
namespace: kube-system
|
||||
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
|
||||
|
||||
---
|
||||
# ------------------- Dashboard Deployment ------------------- #
|
||||
|
||||
kind: Deployment
|
||||
apiVersion: apps/v1
|
||||
@@ -95,7 +176,7 @@ metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kube-system
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
replicas: 1
|
||||
revisionHistoryLimit: 10
|
||||
@@ -108,55 +189,117 @@ spec:
|
||||
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
|
||||
- name: kubernetes-dashboard
|
||||
image: kubernetesui/dashboard:v2.0.0
|
||||
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
|
||||
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: {}
|
||||
- name: kubernetes-dashboard-certs
|
||||
secret:
|
||||
secretName: kubernetes-dashboard-certs
|
||||
- name: tmp-volume
|
||||
emptyDir: {}
|
||||
serviceAccountName: kubernetes-dashboard
|
||||
nodeSelector:
|
||||
"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
|
||||
- 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
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
name: dashboard-metrics-scraper
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
ports:
|
||||
- port: 443
|
||||
targetPort: 8443
|
||||
- port: 8000
|
||||
targetPort: 8000
|
||||
selector:
|
||||
k8s-app: kubernetes-dashboard
|
||||
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:v1.0.4
|
||||
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:
|
||||
"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: {}
|
||||
|
||||
@@ -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/
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
---
|
||||
apiVersion: extensions/v1beta1
|
||||
apiVersion: policy/v1beta1
|
||||
kind: PodSecurityPolicy
|
||||
metadata:
|
||||
annotations:
|
||||
|
||||
@@ -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
|
||||
@@ -246,6 +246,14 @@ EOF"
|
||||
helm completion bash | sudo tee /etc/bash_completion.d/helm
|
||||
fi"
|
||||
|
||||
# Install kustomize
|
||||
pssh "
|
||||
if [ ! -x /usr/local/bin/kustomize ]; then
|
||||
curl -L https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/v3.5.4/kustomize_v3.5.1_linux_amd64.tar.gz |
|
||||
sudo tar -C /usr/local/bin -zx kustomize
|
||||
echo complete -C /usr/local/bin/kustomize kustomize | sudo tee /etc/bash_completion.d/kustomize
|
||||
fi"
|
||||
|
||||
# Install ship
|
||||
pssh "
|
||||
if [ ! -x /usr/local/bin/ship ]; then
|
||||
|
||||
@@ -1,7 +1,8 @@
|
||||
# Uncomment and/or edit one of the the following lines if necessary.
|
||||
#/ /kube-halfday.yml.html 200
|
||||
#/ /kube-fullday.yml.html 200
|
||||
#/ /kube-twodays.yml.html 200
|
||||
#/ /kube-halfday.yml.html 200!
|
||||
#/ /kube-fullday.yml.html 200!
|
||||
#/ /kube-twodays.yml.html 200!
|
||||
/ /helm.yml.html 200!
|
||||
|
||||
# And this allows to do "git clone https://container.training".
|
||||
/info/refs service=git-upload-pack https://github.com/jpetazzo/container.training/info/refs?service=git-upload-pack
|
||||
@@ -13,3 +14,6 @@
|
||||
|
||||
# Shortlink for the QRCode
|
||||
/q /qrcode.html 200
|
||||
/next https://www.eventbrite.com/e/intensive-kubernetes-advanced-concepts-live-stream-tickets-102358725704
|
||||
|
||||
/chat https://gitter.im/jpetazzo/workshop-20200507-online
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
|
||||
class: title
|
||||
|
||||
# Advanced Dockerfiles
|
||||
# Advanced Dockerfile Syntax
|
||||
|
||||

|
||||
|
||||
@@ -12,7 +12,10 @@ class: title
|
||||
We have seen simple Dockerfiles to illustrate how Docker build
|
||||
container images.
|
||||
|
||||
In this section, we will see more Dockerfile commands.
|
||||
In this section, we will give a recap of the Dockerfile syntax,
|
||||
and introduce advanced Dockerfile commands that we might
|
||||
come across sometimes; or that we might want to use in some
|
||||
specific scenarios.
|
||||
|
||||
---
|
||||
|
||||
@@ -420,3 +423,8 @@ ONBUILD COPY . /src
|
||||
|
||||
* You can't chain `ONBUILD` instructions with `ONBUILD`.
|
||||
* `ONBUILD` can't be used to trigger `FROM` instructions.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Advanced Dockerfile syntax
|
||||
:FR:- Dockerfile niveau expert
|
||||
|
||||
@@ -280,3 +280,8 @@ CONTAINER ID IMAGE ... CREATED STATUS
|
||||
5c1dfd4d81f1 jpetazzo/clock ... 40 min. ago Exited (0) 40 min. ago
|
||||
b13c164401fb ubuntu ... 55 min. ago Exited (130) 53 min. ago
|
||||
```
|
||||
|
||||
???
|
||||
|
||||
:EN:- Foreground and background containers
|
||||
:FR:- Exécution interactive ou en arrière-plan
|
||||
|
||||
@@ -167,3 +167,8 @@ Automated process = good.
|
||||
|
||||
In the next chapter, we will learn how to automate the build
|
||||
process by writing a `Dockerfile`.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Building our first images interactively
|
||||
:FR:- Fabriquer nos premières images à la main
|
||||
|
||||
@@ -363,3 +363,10 @@ In this example, `sh -c` will still be used, but
|
||||
The shell gets replaced by `figlet` when `figlet` starts execution.
|
||||
|
||||
This allows to run processes as PID 1 without using JSON.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Towards automated, reproducible builds
|
||||
:EN:- Writing our first Dockerfile
|
||||
:FR:- Rendre le processus automatique et reproductible
|
||||
:FR:- Écrire son premier Dockerfile
|
||||
|
||||
@@ -272,3 +272,7 @@ $ docker run -it --entrypoint bash myfiglet
|
||||
root@6027e44e2955:/#
|
||||
```
|
||||
|
||||
???
|
||||
|
||||
:EN:- CMD and ENTRYPOINT
|
||||
:FR:- CMD et ENTRYPOINT
|
||||
|
||||
@@ -322,3 +322,11 @@ You can:
|
||||
Each copy will run in a different network, totally isolated from the other.
|
||||
|
||||
This is ideal to debug regressions, do side-by-side comparisons, etc.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Using compose to describe an environment
|
||||
:EN:- Connecting services together with a *Compose file*
|
||||
|
||||
:FR:- Utiliser Compose pour décrire son environnement
|
||||
:FR:- Écrire un *Compose file* pour connecter les services entre eux
|
||||
@@ -226,3 +226,13 @@ We've learned how to:
|
||||
|
||||
In the next chapter, we will see how to connect
|
||||
containers together without exposing their ports.
|
||||
|
||||
???
|
||||
|
||||
:EN:Connecting containers
|
||||
:EN:- Container networking basics
|
||||
:EN:- Exposing a container
|
||||
|
||||
:FR:Connecter les conteneurs
|
||||
:FR:- Description du modèle réseau des conteneurs
|
||||
:FR:- Exposer un conteneur
|
||||
|
||||
@@ -98,3 +98,8 @@ Success!
|
||||
* Place it in a different directory, with the `WORKDIR` instruction.
|
||||
|
||||
* Even better, use the `gcc` official image.
|
||||
|
||||
???
|
||||
|
||||
:EN:- The build cache
|
||||
:FR:- Tirer parti du cache afin d'optimiser la vitesse de *build*
|
||||
|
||||
@@ -431,3 +431,8 @@ services:
|
||||
- It's OK (and even encouraged) to start simple and evolve as needed.
|
||||
|
||||
- Feel free to review this chapter later (after writing a few Dockerfiles) for inspiration!
|
||||
|
||||
???
|
||||
|
||||
:EN:- Dockerfile tips, tricks, and best practices
|
||||
:FR:- Bonnes pratiques pour la construction des images
|
||||
|
||||
@@ -290,3 +290,8 @@ bash: figlet: command not found
|
||||
* We have a clear definition of our environment, and can share it reliably with others.
|
||||
|
||||
* Let's see in the next chapters how to bake a custom image with `figlet`!
|
||||
|
||||
???
|
||||
|
||||
:EN:- Running our first container
|
||||
:FR:- Lancer nos premiers conteneurs
|
||||
|
||||
@@ -226,3 +226,8 @@ docker export <container_id> | tar tv
|
||||
```
|
||||
|
||||
This will give a detailed listing of the content of the container.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Troubleshooting and getting inside a container
|
||||
:FR:- Inspecter un conteneur en détail, en *live* ou *post-mortem*
|
||||
|
||||
@@ -375,3 +375,13 @@ We've learned how to:
|
||||
* Understand Docker image namespacing.
|
||||
* Search and download images.
|
||||
|
||||
???
|
||||
|
||||
:EN:Building images
|
||||
:EN:- Containers, images, and layers
|
||||
:EN:- Image addresses and tags
|
||||
:EN:- Finding and transferring images
|
||||
|
||||
:FR:Construire des images
|
||||
:FR:- La différence entre un conteneur et une image
|
||||
:FR:- La notion de *layer* partagé entre images
|
||||
|
||||
@@ -80,3 +80,8 @@ $ docker ps --filter label=owner=alice
|
||||
(To determine internal cross-billing, or who to page in case of outage.)
|
||||
|
||||
* etc.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Using labels to identify containers
|
||||
:FR:- Étiqueter ses conteneurs avec des méta-données
|
||||
|
||||
@@ -391,3 +391,10 @@ We've learned how to:
|
||||
|
||||
* Use a simple local development workflow.
|
||||
|
||||
???
|
||||
|
||||
:EN:Developing with containers
|
||||
:EN:- “Containerize” a development environment
|
||||
|
||||
:FR:Développer au jour le jour
|
||||
:FR:- « Containeriser » son environnement de développement
|
||||
@@ -313,3 +313,11 @@ virtually "free."
|
||||
* Sometimes, we want to inspect a specific intermediary build stage.
|
||||
|
||||
* Or, we want to describe multiple images using a single Dockerfile.
|
||||
|
||||
???
|
||||
|
||||
:EN:Optimizing our images and their build process
|
||||
:EN:- Leveraging multi-stage builds
|
||||
|
||||
:FR:Optimiser les images et leur construction
|
||||
:FR:- Utilisation d'un *multi-stage build*
|
||||
|
||||
@@ -130,3 +130,12 @@ $ docker inspect --format '{{ json .Created }}' <containerID>
|
||||
|
||||
* The optional `json` keyword asks for valid JSON output.
|
||||
<br/>(e.g. here it adds the surrounding double-quotes.)
|
||||
|
||||
???
|
||||
|
||||
:EN:Managing container lifecycle
|
||||
:EN:- Naming and inspecting containers
|
||||
|
||||
:FR:Suivre ses conteneurs à la loupe
|
||||
:FR:- Obtenir des informations détaillées sur un conteneur
|
||||
:FR:- Associer un identifiant unique à un conteneur
|
||||
|
||||
@@ -175,3 +175,10 @@ class: extra-details
|
||||
* This will cause some CLI and TUI programs to redraw the screen.
|
||||
|
||||
* But not all of them.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Restarting old containers
|
||||
:EN:- Detaching and reattaching to container
|
||||
:FR:- Redémarrer des anciens conteneurs
|
||||
:FR:- Se détacher et rattacher à des conteneurs
|
||||
|
||||
@@ -125,3 +125,11 @@ Server:
|
||||
]
|
||||
|
||||
If this doesn't work, raise your hand so that an instructor can assist you!
|
||||
|
||||
???
|
||||
|
||||
:EN:Container concepts
|
||||
:FR:Premier contact avec les conteneurs
|
||||
|
||||
:EN:- What's a container engine?
|
||||
:FR:- Qu'est-ce qu'un *container engine* ?
|
||||
|
||||
@@ -11,10 +11,10 @@ class State(object):
|
||||
self.section_title = None
|
||||
self.section_start = 0
|
||||
self.section_slides = 0
|
||||
self.chapters = {}
|
||||
self.modules = {}
|
||||
self.sections = {}
|
||||
def show(self):
|
||||
if self.section_title.startswith("chapter-"):
|
||||
if self.section_title.startswith("module-"):
|
||||
return
|
||||
print("{0.section_title}\t{0.section_start}\t{0.section_slides}".format(self))
|
||||
self.sections[self.section_title] = self.section_slides
|
||||
@@ -38,10 +38,10 @@ for line in open(sys.argv[1]):
|
||||
if line == "--":
|
||||
state.current_slide += 1
|
||||
toc_links = re.findall("\(#toc-(.*)\)", line)
|
||||
if toc_links and state.section_title.startswith("chapter-"):
|
||||
if state.section_title not in state.chapters:
|
||||
state.chapters[state.section_title] = []
|
||||
state.chapters[state.section_title].append(toc_links[0])
|
||||
if toc_links and state.section_title.startswith("module-"):
|
||||
if state.section_title not in state.modules:
|
||||
state.modules[state.section_title] = []
|
||||
state.modules[state.section_title].append(toc_links[0])
|
||||
# This is really hackish
|
||||
if line.startswith("class:"):
|
||||
for klass in EXCLUDED:
|
||||
@@ -51,7 +51,7 @@ for line in open(sys.argv[1]):
|
||||
|
||||
state.show()
|
||||
|
||||
for chapter in sorted(state.chapters, key=lambda f: int(f.split("-")[1])):
|
||||
chapter_size = sum(state.sections[s] for s in state.chapters[chapter])
|
||||
print("{}\t{}\t{}".format("total size for", chapter, chapter_size))
|
||||
for module in sorted(state.modules, key=lambda f: int(f.split("-")[1])):
|
||||
module_size = sum(state.sections[s] for s in state.modules[module])
|
||||
print("{}\t{}\t{}".format("total size for", module, module_size))
|
||||
|
||||
|
||||
118
slides/fix-redirects.sh
Executable file
118
slides/fix-redirects.sh
Executable file
@@ -0,0 +1,118 @@
|
||||
#!/bin/sh
|
||||
|
||||
# This script helps to add "force-redirects" where needed.
|
||||
# This might replace your entire git repos with Vogon poetry.
|
||||
# Use at your own peril!
|
||||
|
||||
set -eu
|
||||
|
||||
# The easiest way to set this env var is by copy-pasting from
|
||||
# the netlify web dashboard, then doctoring the output a bit.
|
||||
# Yeah, that's gross, but after spending 10 minutes with the
|
||||
# API and the CLI and OAuth, it took about 10 seconds to do it
|
||||
# with le copier-coller, so ... :)
|
||||
|
||||
SITES="
|
||||
2020-01-caen
|
||||
2020-01-zr
|
||||
2020-02-caen
|
||||
2020-02-enix
|
||||
2020-02-outreach
|
||||
2020-02-vmware
|
||||
2020-03-ardan
|
||||
2020-03-qcon
|
||||
alfun-2019-06
|
||||
boosterconf2018
|
||||
clt-2019-10
|
||||
dc17eu
|
||||
decembre2018
|
||||
devopsdaysams2018
|
||||
devopsdaysmsp2018
|
||||
gotochgo2018
|
||||
gotochgo2019
|
||||
indexconf2018
|
||||
intro-2019-01
|
||||
intro-2019-04
|
||||
intro-2019-06
|
||||
intro-2019-08
|
||||
intro-2019-09
|
||||
intro-2019-11
|
||||
intro-2019-12
|
||||
k8s2d
|
||||
kadm-2019-04
|
||||
kadm-2019-06
|
||||
kube
|
||||
kube-2019-01
|
||||
kube-2019-02
|
||||
kube-2019-03
|
||||
kube-2019-04
|
||||
kube-2019-06
|
||||
kube-2019-08
|
||||
kube-2019-09
|
||||
kube-2019-10
|
||||
kube-2019-11
|
||||
lisa-2019-10
|
||||
lisa16t1
|
||||
lisa17m7
|
||||
lisa17t9
|
||||
maersk-2019-07
|
||||
maersk-2019-08
|
||||
ndcminnesota2018
|
||||
nr-2019-08
|
||||
oscon2018
|
||||
oscon2019
|
||||
osseu17
|
||||
pycon2019
|
||||
qconsf18wkshp
|
||||
qconsf2017intro
|
||||
qconsf2017swarm
|
||||
qconsf2018
|
||||
qconuk2019
|
||||
septembre2018
|
||||
sfsf-2019-06
|
||||
srecon2018
|
||||
swarm2017
|
||||
velny-k8s101-2018
|
||||
velocity-2019-11
|
||||
velocityeu2018
|
||||
velocitysj2018
|
||||
vmware-2019-11
|
||||
weka
|
||||
wwc-2019-10
|
||||
wwrk-2019-05
|
||||
wwrk-2019-06
|
||||
"
|
||||
|
||||
for SITE in $SITES; do
|
||||
echo "##### $SITE"
|
||||
git checkout -q origin/$SITE
|
||||
# No _redirects? No problem.
|
||||
if ! [ -f _redirects ]; then
|
||||
continue
|
||||
fi
|
||||
# If there is already a force redirect on /, we're good.
|
||||
if grep '^/ .* 200!' _redirects; then
|
||||
continue
|
||||
fi
|
||||
# If there is a redirect on / ... and it's not forced ... do something.
|
||||
if grep "^/ .* 200$" _redirects; then
|
||||
echo "##### $SITE needs to be patched"
|
||||
sed -i 's,^/ \(.*\) 200$,/ \1 200!,' _redirects
|
||||
git add _redirects
|
||||
git commit -m "fix-redirects.sh: adding forced redirect"
|
||||
git push origin HEAD:$SITE
|
||||
continue
|
||||
fi
|
||||
if grep "^/ " _redirects; then
|
||||
echo "##### $SITE with / but no status code"
|
||||
echo "##### Should I add '200!' ?"
|
||||
read foo
|
||||
sed -i 's,^/ \(.*\)$,/ \1 200!,' _redirects
|
||||
git add _redirects
|
||||
git commit -m "fix-redirects.sh: adding status code and forced redirect"
|
||||
git push origin HEAD:$SITE
|
||||
continue
|
||||
fi
|
||||
echo "##### $SITE without / ?"
|
||||
cat _redirects
|
||||
done
|
||||
36
slides/helm.yml
Normal file
36
slides/helm.yml
Normal file
@@ -0,0 +1,36 @@
|
||||
title: |
|
||||
Helm Workshop
|
||||
CNCF Paris
|
||||
|
||||
chat: "[Gitter](https://gitter.im/jpetazzo/workshop-20200507-online)"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: https://2020-05-helm.container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
|
||||
exclude:
|
||||
- self-paced
|
||||
|
||||
content:
|
||||
- shared/title.md
|
||||
- logistics.md
|
||||
- k8s/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-twitch.md
|
||||
#- shared/chat-room-zoom-meeting.md
|
||||
#- shared/chat-room-zoom-webinar.md
|
||||
- shared/toc.md
|
||||
-
|
||||
- shared/prereqs.md
|
||||
- shared/webssh.md
|
||||
- shared/connecting.md
|
||||
- k8s/kubercoins.md
|
||||
- k8s/helm-intro.md
|
||||
- k8s/helm-chart-format.md
|
||||
- k8s/helm-create-basic-chart.md
|
||||
- k8s/helm-create-better-chart.md
|
||||
- k8s/helm-secrets.md
|
||||
#- k8s/exercise-helm.md
|
||||
- shared/thankyou.md
|
||||
@@ -7,6 +7,7 @@ FLAGS=dict(
|
||||
fr=u"🇫🇷",
|
||||
uk=u"🇬🇧",
|
||||
us=u"🇺🇸",
|
||||
www=u"🌐",
|
||||
)
|
||||
|
||||
TEMPLATE="""<html>
|
||||
@@ -19,7 +20,7 @@ TEMPLATE="""<html>
|
||||
<div class="main">
|
||||
<table>
|
||||
<tr><td class="header" colspan="3">{{ title }}</td></tr>
|
||||
<tr><td class="details" colspan="3">Note: while some workshops are delivered in French, slides are always in English.</td></tr>
|
||||
<tr><td class="details" colspan="3">Note: while some workshops are delivered in other languages, slides are always in English.</td></tr>
|
||||
|
||||
<tr><td class="title" colspan="3">Free video of our latest workshop</td></tr>
|
||||
|
||||
@@ -35,7 +36,7 @@ TEMPLATE="""<html>
|
||||
<td class="details">If you're interested, we can deliver that workshop (or longer courses) to your team or organization.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td class="details">Contact <a href="mailto:jerome.petazzoni@gmail.com">Jérôme Petazzoni</a> to make that happen!</a></td>
|
||||
<td class="details">Contact <a href="mailto:jerome.petazzoni@gmail.com">Jérôme Petazzoni</a> to make that happen!</td>
|
||||
</tr>
|
||||
|
||||
{% if coming_soon %}
|
||||
|
||||
@@ -1,3 +1,36 @@
|
||||
- date: [2020-06-09, 2020-06-11]
|
||||
country: www
|
||||
city: streaming
|
||||
event: Ardan Live
|
||||
speaker: jpetazzo
|
||||
title: Intensive Kubernetes Bootcamp
|
||||
attend: https://www.eventbrite.com/e/livestream-intensive-kubernetes-bootcamp-tickets-103262336428
|
||||
|
||||
- date: [2020-05-19, 2020-05-21]
|
||||
country: www
|
||||
city: streaming
|
||||
event: Ardan Live
|
||||
speaker: jpetazzo
|
||||
title: Intensive Docker Bootcamp
|
||||
attend: https://www.eventbrite.com/e/livestream-intensive-docker-bootcamp-tickets-103258886108
|
||||
|
||||
- date: [2020-05-04, 2020-05-08]
|
||||
country: www
|
||||
city: streaming
|
||||
event: Ardan Live
|
||||
speaker: jpetazzo
|
||||
title: Intensive Kubernetes - Advanced Concepts
|
||||
attend: https://www.eventbrite.com/e/livestream-intensive-kubernetes-advanced-concepts-tickets-102358725704
|
||||
|
||||
- date: [2020-03-30, 2020-04-02]
|
||||
country: www
|
||||
city: streaming
|
||||
event: Ardan Live
|
||||
speaker: jpetazzo
|
||||
title: Intensive Docker and Kubernetes
|
||||
attend: https://www.eventbrite.com/e/ardan-labs-live-worldwide-march-30-april-2-2020-tickets-100331129108#
|
||||
slides: https://https://2020-03-ardan.container.training/
|
||||
|
||||
- date: 2020-03-06
|
||||
country: uk
|
||||
city: London
|
||||
|
||||
@@ -1,69 +0,0 @@
|
||||
title: |
|
||||
Introduction
|
||||
to Containers
|
||||
|
||||
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
|
||||
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: http://container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
|
||||
exclude:
|
||||
- self-paced
|
||||
|
||||
chapters:
|
||||
- shared/title.md
|
||||
- logistics.md
|
||||
- containers/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
-
|
||||
#- containers/Docker_Overview.md
|
||||
#- containers/Docker_History.md
|
||||
- containers/Training_Environment.md
|
||||
#- containers/Installing_Docker.md
|
||||
- containers/First_Containers.md
|
||||
- containers/Background_Containers.md
|
||||
#- containers/Start_And_Attach.md
|
||||
- containers/Naming_And_Inspecting.md
|
||||
#- containers/Labels.md
|
||||
- containers/Getting_Inside.md
|
||||
- containers/Initial_Images.md
|
||||
-
|
||||
- containers/Building_Images_Interactively.md
|
||||
- containers/Building_Images_With_Dockerfiles.md
|
||||
- containers/Cmd_And_Entrypoint.md
|
||||
- containers/Copying_Files_During_Build.md
|
||||
- containers/Exercise_Dockerfile_Basic.md
|
||||
-
|
||||
- containers/Container_Networking_Basics.md
|
||||
#- containers/Network_Drivers.md
|
||||
#- containers/Container_Network_Model.md
|
||||
- containers/Local_Development_Workflow.md
|
||||
- containers/Compose_For_Dev_Stacks.md
|
||||
- containers/Exercise_Composefile.md
|
||||
-
|
||||
- containers/Multi_Stage_Builds.md
|
||||
#- containers/Publishing_To_Docker_Hub.md
|
||||
- containers/Dockerfile_Tips.md
|
||||
- containers/Exercise_Dockerfile_Advanced.md
|
||||
#- containers/Docker_Machine.md
|
||||
#- containers/Advanced_Dockerfiles.md
|
||||
#- containers/Init_Systems.md
|
||||
#- containers/Application_Configuration.md
|
||||
#- containers/Logging.md
|
||||
#- containers/Namespaces_Cgroups.md
|
||||
#- containers/Copy_On_Write.md
|
||||
#- containers/Containers_From_Scratch.md
|
||||
#- containers/Container_Engines.md
|
||||
#- containers/Pods_Anatomy.md
|
||||
#- containers/Ecosystem.md
|
||||
#- containers/Orchestration_Overview.md
|
||||
-
|
||||
- shared/thankyou.md
|
||||
- containers/links.md
|
||||
@@ -1,69 +0,0 @@
|
||||
title: |
|
||||
Introduction
|
||||
to Containers
|
||||
|
||||
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
|
||||
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: http://container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
|
||||
exclude:
|
||||
- in-person
|
||||
|
||||
chapters:
|
||||
- shared/title.md
|
||||
# - shared/logistics.md
|
||||
- containers/intro.md
|
||||
- shared/about-slides.md
|
||||
#- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- - containers/Docker_Overview.md
|
||||
- containers/Docker_History.md
|
||||
- containers/Training_Environment.md
|
||||
- containers/Installing_Docker.md
|
||||
- containers/First_Containers.md
|
||||
- containers/Background_Containers.md
|
||||
- containers/Start_And_Attach.md
|
||||
- - containers/Initial_Images.md
|
||||
- containers/Building_Images_Interactively.md
|
||||
- containers/Building_Images_With_Dockerfiles.md
|
||||
- containers/Cmd_And_Entrypoint.md
|
||||
- containers/Copying_Files_During_Build.md
|
||||
- containers/Exercise_Dockerfile_Basic.md
|
||||
- - containers/Multi_Stage_Builds.md
|
||||
- containers/Publishing_To_Docker_Hub.md
|
||||
- containers/Dockerfile_Tips.md
|
||||
- containers/Exercise_Dockerfile_Advanced.md
|
||||
- - containers/Naming_And_Inspecting.md
|
||||
- containers/Labels.md
|
||||
- containers/Getting_Inside.md
|
||||
- - containers/Container_Networking_Basics.md
|
||||
- containers/Network_Drivers.md
|
||||
- containers/Container_Network_Model.md
|
||||
#- containers/Connecting_Containers_With_Links.md
|
||||
- containers/Ambassadors.md
|
||||
- - containers/Local_Development_Workflow.md
|
||||
- containers/Windows_Containers.md
|
||||
- containers/Working_With_Volumes.md
|
||||
- containers/Compose_For_Dev_Stacks.md
|
||||
- containers/Exercise_Composefile.md
|
||||
- containers/Docker_Machine.md
|
||||
- - containers/Advanced_Dockerfiles.md
|
||||
- containers/Init_Systems.md
|
||||
- containers/Application_Configuration.md
|
||||
- containers/Logging.md
|
||||
- containers/Resource_Limits.md
|
||||
- - containers/Namespaces_Cgroups.md
|
||||
- containers/Copy_On_Write.md
|
||||
#- containers/Containers_From_Scratch.md
|
||||
- - containers/Container_Engines.md
|
||||
- containers/Pods_Anatomy.md
|
||||
- containers/Ecosystem.md
|
||||
- containers/Orchestration_Overview.md
|
||||
- shared/thankyou.md
|
||||
- containers/links.md
|
||||
@@ -1,77 +0,0 @@
|
||||
title: |
|
||||
Introduction
|
||||
to Containers
|
||||
|
||||
chat: "[Slack](https://dockercommunity.slack.com/messages/C7GKACWDV)"
|
||||
#chat: "[Gitter](https://gitter.im/jpetazzo/workshop-yyyymmdd-city)"
|
||||
|
||||
gitrepo: github.com/jpetazzo/container.training
|
||||
|
||||
slides: http://container.training/
|
||||
|
||||
#slidenumberprefix: "#SomeHashTag — "
|
||||
|
||||
exclude:
|
||||
- self-paced
|
||||
|
||||
chapters:
|
||||
- shared/title.md
|
||||
- logistics.md
|
||||
- containers/intro.md
|
||||
- shared/about-slides.md
|
||||
- shared/chat-room-im.md
|
||||
#- shared/chat-room-zoom.md
|
||||
- shared/toc.md
|
||||
- # DAY 1
|
||||
- containers/Docker_Overview.md
|
||||
#- containers/Docker_History.md
|
||||
- containers/Training_Environment.md
|
||||
- containers/First_Containers.md
|
||||
- containers/Background_Containers.md
|
||||
- containers/Initial_Images.md
|
||||
-
|
||||
- containers/Building_Images_Interactively.md
|
||||
- containers/Building_Images_With_Dockerfiles.md
|
||||
- containers/Cmd_And_Entrypoint.md
|
||||
- containers/Copying_Files_During_Build.md
|
||||
- containers/Exercise_Dockerfile_Basic.md
|
||||
-
|
||||
- containers/Dockerfile_Tips.md
|
||||
- containers/Multi_Stage_Builds.md
|
||||
- containers/Publishing_To_Docker_Hub.md
|
||||
- containers/Exercise_Dockerfile_Advanced.md
|
||||
-
|
||||
- containers/Naming_And_Inspecting.md
|
||||
- containers/Labels.md
|
||||
- containers/Start_And_Attach.md
|
||||
- containers/Getting_Inside.md
|
||||
- containers/Resource_Limits.md
|
||||
- # DAY 2
|
||||
- containers/Container_Networking_Basics.md
|
||||
- containers/Network_Drivers.md
|
||||
- containers/Container_Network_Model.md
|
||||
-
|
||||
- containers/Local_Development_Workflow.md
|
||||
- containers/Working_With_Volumes.md
|
||||
- containers/Compose_For_Dev_Stacks.md
|
||||
- containers/Exercise_Composefile.md
|
||||
-
|
||||
- containers/Installing_Docker.md
|
||||
- containers/Container_Engines.md
|
||||
- containers/Init_Systems.md
|
||||
- containers/Advanced_Dockerfiles.md
|
||||
-
|
||||
- containers/Application_Configuration.md
|
||||
- containers/Logging.md
|
||||
- containers/Orchestration_Overview.md
|
||||
-
|
||||
- shared/thankyou.md
|
||||
- containers/links.md
|
||||
#-
|
||||
#- containers/Docker_Machine.md
|
||||
#- containers/Ambassadors.md
|
||||
#- containers/Namespaces_Cgroups.md
|
||||
#- containers/Copy_On_Write.md
|
||||
#- containers/Containers_From_Scratch.md
|
||||
#- containers/Pods_Anatomy.md
|
||||
#- containers/Ecosystem.md
|
||||
@@ -129,3 +129,8 @@ installed and set up `kubectl` to communicate with your cluster.
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Securely accessing internal services
|
||||
:FR:- Accès sécurisé aux services internes
|
||||
|
||||
@@ -87,3 +87,8 @@
|
||||
- Tunnels are also fine
|
||||
|
||||
(e.g. [k3s](https://k3s.io/) uses a tunnel to allow each node to contact the API server)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Ensuring API server availability
|
||||
:FR:- Assurer la disponibilité du serveur API
|
||||
|
||||
@@ -381,3 +381,8 @@ We demonstrated *update* and *watch* semantics.
|
||||
- if the pod has special constraints that can't be met
|
||||
|
||||
- if the scheduler is not running (!)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Kubernetes architecture review
|
||||
:FR:- Passage en revue de l'architecture de Kubernetes
|
||||
|
||||
@@ -676,3 +676,17 @@ class: extra-details
|
||||
- Both are available as standalone programs, or as plugins for `kubectl`
|
||||
|
||||
(`kubectl` plugins can be installed and managed with `krew`)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Authentication and authorization in Kubernetes
|
||||
:EN:- Authentication with tokens and certificates
|
||||
:EN:- Aithorization with RBAC (Role-Based Access Control)
|
||||
:EN:- Restricting permissions with Service Accounts
|
||||
:EN:- Working with Roles, Cluster Roles, Role Bindings, etc.
|
||||
|
||||
:FR:- Identification et droits d'accès dans Kubernetes
|
||||
:FR:- Mécanismes d'identification par jetons et certificats
|
||||
:FR:- Le modèle RBAC *(Role-Based Access Control)*
|
||||
:FR:- Restreindre les permissions grâce aux *Service Accounts*
|
||||
:FR:- Comprendre les *Roles*, *Cluster Roles*, *Role Bindings*, etc.
|
||||
|
||||
194
slides/k8s/batch-jobs.md
Normal file
194
slides/k8s/batch-jobs.md
Normal file
@@ -0,0 +1,194 @@
|
||||
# Executing batch jobs
|
||||
|
||||
- Deployments are great for stateless web apps
|
||||
|
||||
(as well as workers that keep running forever)
|
||||
|
||||
- Pods are great for one-off execution that we don't care about
|
||||
|
||||
(because they don't get automatically restarted if something goes wrong)
|
||||
|
||||
- Jobs are great for "long" background work
|
||||
|
||||
("long" being at least minutes our hours)
|
||||
|
||||
- CronJobs are great to schedule Jobs at regular intervals
|
||||
|
||||
(just like the classic UNIX `cron` daemon with its `crontab` files)
|
||||
|
||||
---
|
||||
|
||||
## Creating a Job
|
||||
|
||||
- A Job will create a Pod
|
||||
|
||||
- If the Pod fails, the Job will create another one
|
||||
|
||||
- The Job will keep trying until:
|
||||
|
||||
- either a Pod succeeds,
|
||||
|
||||
- or we hit the *backoff limit* of the Job (default=6)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create a Job that has a 50% chance of success:
|
||||
```bash
|
||||
kubectl create job flipcoin --image=alpine -- sh -c 'exit $(($RANDOM%2))'
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Our Job in action
|
||||
|
||||
- Our Job will create a Pod named `flipcoin-xxxxx`
|
||||
|
||||
- If the Pod succeeds, the Job stops
|
||||
|
||||
- If the Pod fails, the Job creates another Pod
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the status of the Pod(s) created by the Job:
|
||||
```bash
|
||||
kubectl get pods --selector=job-name=flipcoin
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More advanced jobs
|
||||
|
||||
- We can specify a number of "completions" (default=1)
|
||||
|
||||
- This indicates how many times the Job must be executed
|
||||
|
||||
- We can specify the "parallelism" (default=1)
|
||||
|
||||
- This indicates how many Pods should be running in parallel
|
||||
|
||||
- These options cannot be specified with `kubectl create job`
|
||||
|
||||
(we have to write our own YAML manifest to use them)
|
||||
|
||||
---
|
||||
|
||||
## Scheduling periodic background work
|
||||
|
||||
- A Cron Job is a Job that will be executed at specific intervals
|
||||
|
||||
(the name comes from the traditional cronjobs executed by the UNIX crond)
|
||||
|
||||
- It requires a *schedule*, represented as five space-separated fields:
|
||||
|
||||
- minute [0,59]
|
||||
- hour [0,23]
|
||||
- day of the month [1,31]
|
||||
- month of the year [1,12]
|
||||
- day of the week ([0,6] with 0=Sunday)
|
||||
|
||||
- `*` means "all valid values"; `/N` means "every N"
|
||||
|
||||
- Example: `*/3 * * * *` means "every three minutes"
|
||||
|
||||
---
|
||||
|
||||
## Creating a Cron Job
|
||||
|
||||
- Let's create a simple job to be executed every three minutes
|
||||
|
||||
- Careful: make sure that the job terminates!
|
||||
|
||||
(The Cron Job will not hold if a previous job is still running)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create the Cron Job:
|
||||
```bash
|
||||
kubectl create cronjob every3mins --schedule="*/3 * * * *" \
|
||||
--image=alpine -- sleep 10
|
||||
```
|
||||
|
||||
- Check the resource that was created:
|
||||
```bash
|
||||
kubectl get cronjobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Cron Jobs in action
|
||||
|
||||
- At the specified schedule, the Cron Job will create a Job
|
||||
|
||||
- The Job will create a Pod
|
||||
|
||||
- The Job will make sure that the Pod completes
|
||||
|
||||
(re-creating another one if it fails, for instance if its node fails)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the Jobs that are created:
|
||||
```bash
|
||||
kubectl get jobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
(It will take a few minutes before the first job is scheduled.)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## What about `kubectl run` before v1.18?
|
||||
|
||||
- Creating a Deployment:
|
||||
|
||||
`kubectl run`
|
||||
|
||||
- Creating a Pod:
|
||||
|
||||
`kubectl run --restart=Never`
|
||||
|
||||
- Creating a Job:
|
||||
|
||||
`kubectl run --restart=OnFailure`
|
||||
|
||||
- Creating a Cron Job:
|
||||
|
||||
`kubectl run --restart=OnFailure --schedule=...`
|
||||
|
||||
*Avoid using these forms, as they are deprecated since Kubernetes 1.18!*
|
||||
|
||||
---
|
||||
|
||||
## Beyond `kubectl create`
|
||||
|
||||
- As hinted earlier, `kubectl create` doesn't always expose all options
|
||||
|
||||
- can't express parallelism or completions of Jobs
|
||||
|
||||
- can't express Pods with multiple containers
|
||||
|
||||
- can't express healthchecks, resource limits
|
||||
|
||||
- etc.
|
||||
|
||||
- `kubectl create` and `kubectl run` are *helpers* that generate YAML manifests
|
||||
|
||||
- If we write these manifests ourselves, we can use all features and options
|
||||
|
||||
- We'll see later how to do that!
|
||||
|
||||
???
|
||||
|
||||
:EN:- Running batch and cron jobs
|
||||
:FR:- Tâches périodiques *(cron)* et traitement par lots *(batch)*
|
||||
@@ -257,3 +257,8 @@ This is the TLS bootstrap mechanism, step by step.
|
||||
- [kubeadm token](https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-token/) command
|
||||
|
||||
- [kubeadm join](https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-join/) command (has details about [the join workflow](https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-join/#join-workflow))
|
||||
|
||||
???
|
||||
|
||||
:EN:- Leveraging TLS bootstrap to join nodes
|
||||
:FR:- Ajout de nœuds grâce au *TLS bootstrap*
|
||||
|
||||
@@ -142,3 +142,8 @@ The list includes the following providers:
|
||||
- [configuration](https://kubernetes.io/docs/concepts/cluster-administration/cloud-providers/) (mainly for OpenStack)
|
||||
|
||||
- [deployment](https://kubernetes.io/docs/tasks/administer-cluster/running-cloud-controller/)
|
||||
|
||||
???
|
||||
|
||||
:EN:- The Cloud Controller Manager
|
||||
:FR:- Le *Cloud Controller Manager*
|
||||
|
||||
@@ -364,3 +364,8 @@ docker run --rm --net host -v $PWD:/vol \
|
||||
- [bivac](https://github.com/camptocamp/bivac)
|
||||
|
||||
Backup Interface for Volumes Attached to Containers
|
||||
|
||||
???
|
||||
|
||||
:EN:- Backing up clusters
|
||||
:FR:- Politiques de sauvegarde
|
||||
|
||||
@@ -165,3 +165,12 @@ class: extra-details
|
||||
- Security advantage (stronger isolation between pods)
|
||||
|
||||
Check [this blog post](http://jpetazzo.github.io/2019/02/13/running-kubernetes-without-nodes-with-kiyot/) for more details.
|
||||
|
||||
???
|
||||
|
||||
:EN:- What happens when the cluster is at, or over, capacity
|
||||
:EN:- Cluster sizing and scaling
|
||||
|
||||
:FR:- Ce qui se passe quand il n'y a plus assez de ressources
|
||||
:FR:- Dimensionner et redimensionner ses clusters
|
||||
|
||||
|
||||
@@ -501,3 +501,11 @@ class: extra-details
|
||||
- Then upgrading kubeadm to 1.16.X, etc.
|
||||
|
||||
- **Make sure to read the release notes before upgrading!**
|
||||
|
||||
???
|
||||
|
||||
:EN:- Best practices for cluster upgrades
|
||||
:EN:- Example: upgrading a kubeadm cluster
|
||||
|
||||
:FR:- Bonnes pratiques pour la mise à jour des clusters
|
||||
:FR:- Exemple : mettre à jour un cluster kubeadm
|
||||
|
||||
@@ -574,3 +574,8 @@ done
|
||||
- This could be useful for embedded platforms with very limited resources
|
||||
|
||||
(or lab environments for learning purposes)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Configuring CNI plugins
|
||||
:FR:- Configurer des plugins CNI
|
||||
|
||||
@@ -401,3 +401,8 @@ class: pic
|
||||
- IP addresses are associated with *pods*, not with individual containers
|
||||
|
||||
Both diagrams used with permission.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Kubernetes concepts
|
||||
:FR:- Kubernetes en théorie
|
||||
|
||||
@@ -547,3 +547,13 @@ spec:
|
||||
- With RBAC, we can authorize a user to access configmaps, but not secrets
|
||||
|
||||
(since they are two different kinds of resources)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Managing application configuration
|
||||
:EN:- Exposing configuration with the downward API
|
||||
:EN:- Exposing configuration with Config Maps and Secrets
|
||||
|
||||
:FR:- Gérer la configuration des applications
|
||||
:FR:- Configuration au travers de la *downward API*
|
||||
:FR:- Configuration via les *Config Maps* et *Secrets*
|
||||
|
||||
@@ -263,3 +263,8 @@ spec:
|
||||
#name: web-xyz1234567-pqr89
|
||||
EOF
|
||||
```
|
||||
|
||||
???
|
||||
|
||||
:EN:- Control plane authentication
|
||||
:FR:- Sécurisation du plan de contrôle
|
||||
|
||||
@@ -132,11 +132,33 @@ For a user named `jean.doe`, we will have:
|
||||
|
||||
- ServiceAccount `jean.doe` in Namespace `users`
|
||||
|
||||
- CertificateSigningRequest `users:jean.doe`
|
||||
- CertificateSigningRequest `user=jean.doe`
|
||||
|
||||
- ClusterRole `users:jean.doe` giving read/write access to that CSR
|
||||
- ClusterRole `user=jean.doe` giving read/write access to that CSR
|
||||
|
||||
- ClusterRoleBinding `users:jean.doe` binding ClusterRole and ServiceAccount
|
||||
- ClusterRoleBinding `user=jean.doe` binding ClusterRole and ServiceAccount
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## About resource name constraints
|
||||
|
||||
- Most Kubernetes identifiers and names are fairly restricted
|
||||
|
||||
- They generally are DNS-1123 *labels* or *subdomains* (from [RFC 1123](https://tools.ietf.org/html/rfc1123))
|
||||
|
||||
- A label is lowercase letters, numbers, dashes; can't start or finish with a dash
|
||||
|
||||
- A subdomain is one or multiple labels separated by dots
|
||||
|
||||
- Some resources have more relaxed constraints, and can be "path segment names"
|
||||
|
||||
(uppercase are allowed, as well as some characters like `#:?!,_`)
|
||||
|
||||
- This includes RBAC objects (like Roles, RoleBindings...) and CSRs
|
||||
|
||||
- See the [Identifiers and Names](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/architecture/identifiers.md) design document and the [Object Names and IDs](https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#path-segment-names) documentation page for more details
|
||||
|
||||
---
|
||||
|
||||
@@ -153,7 +175,7 @@ For a user named `jean.doe`, we will have:
|
||||
|
||||
- Create the ServiceAccount, ClusterRole, ClusterRoleBinding for `jean.doe`:
|
||||
```bash
|
||||
kubectl apply -f ~/container.training/k8s/users:jean.doe.yaml
|
||||
kubectl apply -f ~/container.training/k8s/user=jean.doe.yaml
|
||||
```
|
||||
|
||||
]
|
||||
@@ -195,7 +217,13 @@ For a user named `jean.doe`, we will have:
|
||||
|
||||
- Add a new context using that identity:
|
||||
```bash
|
||||
kubectl config set-context jean.doe --user=token:jean.doe --cluster=kubernetes
|
||||
kubectl config set-context jean.doe --user=token:jean.doe --cluster=`kubernetes`
|
||||
```
|
||||
(Make sure to adapt the cluster name if yours is different!)
|
||||
|
||||
- Use that context:
|
||||
```bash
|
||||
kubectl config use-context jean.doe
|
||||
```
|
||||
|
||||
]
|
||||
@@ -216,7 +244,7 @@ For a user named `jean.doe`, we will have:
|
||||
|
||||
- Try to access "our" CertificateSigningRequest:
|
||||
```bash
|
||||
kubectl get csr users:jean.doe
|
||||
kubectl get csr user=jean.doe
|
||||
```
|
||||
(This should tell us "NotFound")
|
||||
|
||||
@@ -273,7 +301,7 @@ The command above generates:
|
||||
apiVersion: certificates.k8s.io/v1beta1
|
||||
kind: CertificateSigningRequest
|
||||
metadata:
|
||||
name: users:jean.doe
|
||||
name: user=jean.doe
|
||||
spec:
|
||||
request: $(base64 -w0 < csr.pem)
|
||||
usages:
|
||||
@@ -324,12 +352,12 @@ The command above generates:
|
||||
|
||||
- Inspect the CSR:
|
||||
```bash
|
||||
kubectl describe csr users:jean.doe
|
||||
kubectl describe csr user=jean.doe
|
||||
```
|
||||
|
||||
- Approve it:
|
||||
```bash
|
||||
kubectl certificate approve users:jean.doe
|
||||
kubectl certificate approve user=jean.doe
|
||||
```
|
||||
|
||||
]
|
||||
@@ -347,7 +375,7 @@ The command above generates:
|
||||
|
||||
- Retrieve the updated CSR object and extract the certificate:
|
||||
```bash
|
||||
kubectl get csr users:jean.doe \
|
||||
kubectl get csr user=jean.doe \
|
||||
-o jsonpath={.status.certificate} \
|
||||
| base64 -d > cert.pem
|
||||
```
|
||||
@@ -424,3 +452,8 @@ To be usable in real environments, we would need to add:
|
||||
- we get strong security *and* convenience
|
||||
|
||||
- Systems like Vault also have certificate issuance mechanisms
|
||||
|
||||
???
|
||||
|
||||
:EN:- Generating user certificates with the CSR API
|
||||
:FR:- Génération de certificats utilisateur avec la CSR API
|
||||
|
||||
@@ -688,3 +688,8 @@ class: extra-details
|
||||
(by setting their label accordingly)
|
||||
|
||||
- This gives us building blocks for canary and blue/green deployments
|
||||
|
||||
???
|
||||
|
||||
:EN:- Scaling with Daemon Sets
|
||||
:FR:- Utilisation de Daemon Sets
|
||||
|
||||
@@ -172,3 +172,8 @@ The dashboard will then ask you which authentication you want to use.
|
||||
- It introduces new failure modes
|
||||
|
||||
(for instance, if you try to apply YAML from a link that's no longer valid)
|
||||
|
||||
???
|
||||
|
||||
:EN:- The Kubernetes dashboard
|
||||
:FR:- Le *dashboard* Kubernetes
|
||||
|
||||
@@ -26,3 +26,8 @@
|
||||
- When we want to change some resource, we update the *spec*
|
||||
|
||||
- Kubernetes will then *converge* that resource
|
||||
|
||||
???
|
||||
|
||||
:EN:- Declarative vs imperative models
|
||||
:FR:- Modèles déclaratifs et impératifs
|
||||
|
||||
@@ -823,3 +823,8 @@ class: extra-details
|
||||
(it could be as a bare process, or in a container/pod using the host network)
|
||||
|
||||
- ... And it expects to be listening on port 6443 with TLS
|
||||
|
||||
???
|
||||
|
||||
:EN:- Building our own cluster from scratch
|
||||
:FR:- Construire son cluster à la main
|
||||
|
||||
@@ -344,3 +344,14 @@ class: extra-details
|
||||
- [Dynamic Admission Controllers](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/)
|
||||
|
||||
- [Aggregation Layer](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/apiserver-aggregation/)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Extending the Kubernetes API
|
||||
:EN:- Custom Resource Definitions (CRDs)
|
||||
:EN:- The aggregation layer
|
||||
:EN:- Admission control and webhooks
|
||||
|
||||
:FR:- Comment étendre l'API Kubernetes
|
||||
:FR:- Les CRDs *(Custom Resource Definitions)*
|
||||
:FR:- Extension via *aggregation layer*, *admission control*, *webhooks*
|
||||
|
||||
@@ -237,3 +237,8 @@
|
||||
- Gitkube can also deploy Helm charts
|
||||
|
||||
(instead of raw YAML files)
|
||||
|
||||
???
|
||||
|
||||
:EN:- GitOps
|
||||
:FR:- GitOps
|
||||
|
||||
@@ -154,9 +154,9 @@ It will use the default success threshold (1 successful attempt = alive).
|
||||
|
||||
.exercise[
|
||||
|
||||
- Edit `rng-daemonset.yaml` and add the liveness probe
|
||||
- Edit `rng-deployment.yaml` and add the liveness probe
|
||||
```bash
|
||||
vim rng-daemonset.yaml
|
||||
vim rng-deployment.yaml
|
||||
```
|
||||
|
||||
- Load the YAML for all the resources of DockerCoins:
|
||||
@@ -333,3 +333,8 @@ class: extra-details
|
||||
(and have gcr.io/pause take care of the reaping)
|
||||
|
||||
- Discussion of this in [Video - 10 Ways to Shoot Yourself in the Foot with Kubernetes, #9 Will Surprise You](https://www.youtube.com/watch?v=QKI-JRs2RIE)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Adding healthchecks to an app
|
||||
:FR:- Ajouter des *healthchecks* à une application
|
||||
|
||||
@@ -282,3 +282,8 @@ If the Redis process becomes unresponsive, it will be killed.
|
||||
- check the timestamp of that file from an exec probe
|
||||
|
||||
- Writing logs (and checking them from the probe) also works
|
||||
|
||||
???
|
||||
|
||||
:EN:- Using healthchecks to improve availability
|
||||
:FR:- Utiliser des *healthchecks* pour améliorer la disponibilité
|
||||
|
||||
@@ -237,3 +237,8 @@ We see the components mentioned above: `Chart.yaml`, `templates/`, `values.yaml`
|
||||
- This can be use for database migrations, backups, notifications, smoke tests ...
|
||||
|
||||
- Hooks named `test` are executed only when running `helm test RELEASE-NAME`
|
||||
|
||||
???
|
||||
|
||||
:EN:- Helm charts format
|
||||
:FR:- Le format des *Helm charts*
|
||||
|
||||
@@ -218,3 +218,8 @@ have details about recommended annotations and labels.
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Writing a basic Helm chart for the whole app
|
||||
:FR:- Écriture d'un *chart* Helm simplifié
|
||||
|
||||
@@ -121,7 +121,7 @@ This creates a basic chart in the directory `helmcoins`.
|
||||
helm install COMPONENT-NAME CHART-DIRECTORY
|
||||
```
|
||||
|
||||
- We can also use the following command, which is idempotent:
|
||||
- We can also use the following command, which is *idempotent*:
|
||||
```bash
|
||||
helm upgrade COMPONENT-NAME CHART-DIRECTORY --install
|
||||
```
|
||||
@@ -139,6 +139,28 @@ This creates a basic chart in the directory `helmcoins`.
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## "Idempotent"
|
||||
|
||||
- Idempotent = that can be applied multiple times without changing the result
|
||||
|
||||
(the word is commonly used in maths and computer science)
|
||||
|
||||
- In this context, this means:
|
||||
|
||||
- if the action (installing the chart) wasn't done, do it
|
||||
|
||||
- if the action was already done, don't do anything
|
||||
|
||||
- Ideally, when such an action fails, it can be retried safely
|
||||
|
||||
(as opposed to, e.g., installing a new release each time we run it)
|
||||
|
||||
- Other example: `kubectl -f some-file.yaml`
|
||||
|
||||
---
|
||||
|
||||
## Checking what we've done
|
||||
|
||||
- Let's see if DockerCoins is working!
|
||||
@@ -577,3 +599,8 @@ We can look at the definition, but it's fairly complex ...
|
||||
- We can change the number of workers with `replicaCount`
|
||||
|
||||
- And much more!
|
||||
|
||||
???
|
||||
|
||||
:EN:- Writing better Helm charts for app components
|
||||
:FR:- Écriture de *charts* composant par composant
|
||||
|
||||
@@ -18,6 +18,25 @@
|
||||
|
||||
---
|
||||
|
||||
## CNCF graduation status
|
||||
|
||||
- On April 30th 2020, Helm was the 10th project to *graduate* within the CNCF
|
||||
|
||||
.emoji[🎉]
|
||||
|
||||
(alongside Containerd, Prometheus, and Kubernetes itself)
|
||||
|
||||
- This is an acknowledgement by the CNCF for projects that
|
||||
|
||||
*demonstrate thriving adoption, an open governance process,
|
||||
<br/>
|
||||
and a strong commitment to community, sustainability, and inclusivity.*
|
||||
|
||||
- See [CNCF announcement](https://www.cncf.io/announcement/2020/04/30/cloud-native-computing-foundation-announces-helm-graduation/)
|
||||
and [Helm announcement](https://helm.sh/blog/celebrating-helms-cncf-graduation/)
|
||||
|
||||
---
|
||||
|
||||
## Helm concepts
|
||||
|
||||
- `helm` is a CLI tool
|
||||
@@ -417,3 +436,13 @@ All unspecified values will take the default values defined in the chart.
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Helm concepts
|
||||
:EN:- Installing software with Helm
|
||||
:EN:- Helm 2, Helm 3, and the Helm Hub
|
||||
|
||||
:FR:- Fonctionnement général de Helm
|
||||
:FR:- Installer des composants via Helm
|
||||
:FR:- Helm 2, Helm 3, et le *Helm Hub*
|
||||
|
||||
@@ -232,3 +232,8 @@ The chart is in a structured format, but it's entirely captured in this JSON.
|
||||
(including the full source of the chart, and the values used)
|
||||
|
||||
- This allows arbitrary rollbacks, as well as tweaking values even without having access to the source of the chart (or the chart repo) used for deployment
|
||||
|
||||
???
|
||||
|
||||
:EN:- Deep dive into Helm internals
|
||||
:FR:- Fonctionnement interne de Helm
|
||||
|
||||
@@ -306,3 +306,8 @@ This can also be set with `--cpu-percent=`.
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Auto-scaling resources
|
||||
:FR:- *Auto-scaling* (dimensionnement automatique) des ressources
|
||||
|
||||
@@ -718,3 +718,8 @@ We also need:
|
||||
(create them, promote them, delete them ...)
|
||||
|
||||
For inspiration, check [flagger by Weave](https://github.com/weaveworks/flagger).
|
||||
|
||||
???
|
||||
|
||||
:EN:- The Ingress resource
|
||||
:FR:- La ressource *ingress*
|
||||
|
||||
@@ -155,3 +155,8 @@ For critical services, we might want to precisely control the update process.
|
||||
- Even better if it's combined with DNS integration
|
||||
|
||||
(to facilitate name → ClusterIP resolution)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Interconnecting clusters
|
||||
:FR:- Interconnexion de clusters
|
||||
|
||||
162
slides/k8s/kubectl-logs.md
Normal file
162
slides/k8s/kubectl-logs.md
Normal file
@@ -0,0 +1,162 @@
|
||||
# Revisiting `kubectl logs`
|
||||
|
||||
- In this section, we assume that we have a Deployment with multiple Pods
|
||||
|
||||
(e.g. `pingpong` that we scaled to at least 3 pods)
|
||||
|
||||
- We will highlights some of the limitations of `kubectl logs`
|
||||
|
||||
---
|
||||
|
||||
## Streaming logs of multiple pods
|
||||
|
||||
- By default, `kubectl logs` shows us the output of a single Pod
|
||||
|
||||
.exercise[
|
||||
|
||||
- Try to check the output of the Pods related to a Deployment:
|
||||
```bash
|
||||
kubectl logs deploy/pingpong --tail 1 --follow
|
||||
```
|
||||
|
||||
<!--
|
||||
```wait using pod/pingpong-```
|
||||
```keys ^C```
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
`kubectl logs` only shows us the logs of one of the Pods.
|
||||
|
||||
---
|
||||
|
||||
## Viewing logs of multiple pods
|
||||
|
||||
- When we specify a deployment name, only one single pod's logs are shown
|
||||
|
||||
- We can view the logs of multiple pods by specifying a *selector*
|
||||
|
||||
- If we check the pods created by the deployment, they all have the label `app=pingpong`
|
||||
|
||||
(this is just a default label that gets added when using `kubectl create deployment`)
|
||||
|
||||
.exercise[
|
||||
|
||||
- View the last line of log from all pods with the `app=pingpong` label:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Streaming logs of multiple pods
|
||||
|
||||
- Can we stream the logs of all our `pingpong` pods?
|
||||
|
||||
.exercise[
|
||||
|
||||
- Combine `-l` and `-f` flags:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!--
|
||||
```wait seq=```
|
||||
```key ^C```
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
*Note: combining `-l` and `-f` is only possible since Kubernetes 1.14!*
|
||||
|
||||
*Let's try to understand why ...*
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Streaming logs of many pods
|
||||
|
||||
- Let's see what happens if we try to stream the logs for more than 5 pods
|
||||
|
||||
.exercise[
|
||||
|
||||
- Scale up our deployment:
|
||||
```bash
|
||||
kubectl scale deployment pingpong --replicas=8
|
||||
```
|
||||
|
||||
- Stream the logs:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!-- ```wait error:``` -->
|
||||
|
||||
]
|
||||
|
||||
We see a message like the following one:
|
||||
```
|
||||
error: you are attempting to follow 8 log streams,
|
||||
but maximum allowed concurency is 5,
|
||||
use --max-log-requests to increase the limit
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Why can't we stream the logs of many pods?
|
||||
|
||||
- `kubectl` opens one connection to the API server per pod
|
||||
|
||||
- For each pod, the API server opens one extra connection to the corresponding kubelet
|
||||
|
||||
- If there are 1000 pods in our deployment, that's 1000 inbound + 1000 outbound connections on the API server
|
||||
|
||||
- This could easily put a lot of stress on the API server
|
||||
|
||||
- Prior Kubernetes 1.14, it was decided to *not* allow multiple connections
|
||||
|
||||
- From Kubernetes 1.14, it is allowed, but limited to 5 connections
|
||||
|
||||
(this can be changed with `--max-log-requests`)
|
||||
|
||||
- For more details about the rationale, see
|
||||
[PR #67573](https://github.com/kubernetes/kubernetes/pull/67573)
|
||||
|
||||
---
|
||||
|
||||
## Shortcomings of `kubectl logs`
|
||||
|
||||
- We don't see which pod sent which log line
|
||||
|
||||
- If pods are restarted / replaced, the log stream stops
|
||||
|
||||
- If new pods are added, we don't see their logs
|
||||
|
||||
- To stream the logs of multiple pods, we need to write a selector
|
||||
|
||||
- There are external tools to address these shortcomings
|
||||
|
||||
(e.g.: [Stern](https://github.com/wercker/stern))
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## `kubectl logs -l ... --tail N`
|
||||
|
||||
- If we run this with Kubernetes 1.12, the last command shows multiple lines
|
||||
|
||||
- This is a regression when `--tail` is used together with `-l`/`--selector`
|
||||
|
||||
- It always shows the last 10 lines of output for each container
|
||||
|
||||
(instead of the number of lines specified on the command line)
|
||||
|
||||
- The problem was fixed in Kubernetes 1.13
|
||||
|
||||
*See [#70554](https://github.com/kubernetes/kubernetes/issues/70554) for details.*
|
||||
@@ -384,11 +384,11 @@ class: extra-details
|
||||
kubectl logs deploy/pingpong --tail 1 --follow
|
||||
```
|
||||
|
||||
- Leave that command running, so that we can keep an eye on these logs
|
||||
- Stop it with Ctrl-C
|
||||
|
||||
<!--
|
||||
```wait seq=3```
|
||||
```tmux split-pane -h```
|
||||
```keys ^C```
|
||||
-->
|
||||
|
||||
]
|
||||
@@ -411,62 +411,55 @@ class: extra-details
|
||||
kubectl scale deployment pingpong --replicas 3
|
||||
```
|
||||
|
||||
- Check that we now have multiple pods:
|
||||
```bash
|
||||
kubectl get pods
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
Note: what if we tried to scale `replicaset.apps/pingpong-xxxxxxxxxx`?
|
||||
|
||||
We could! But the *deployment* would notice it right away, and scale back to the initial level.
|
||||
|
||||
---
|
||||
|
||||
## Log streaming
|
||||
class: extra-details
|
||||
|
||||
- Let's look again at the output of `kubectl logs`
|
||||
## Scaling a Replica Set
|
||||
|
||||
(the one we started before scaling up)
|
||||
- What if we scale the Replica Set instead of the Deployment?
|
||||
|
||||
- `kubectl logs` shows us one line per second
|
||||
- The Deployment would notice it right away and scale back to the initial level
|
||||
|
||||
- We could expect 3 lines per second
|
||||
- The Replica Set makes sure that we have the right numbers of Pods
|
||||
|
||||
(since we should now have 3 pods running `ping`)
|
||||
- The Deployment makes sure that the Replica Set has the right size
|
||||
|
||||
- Let's try to figure out what's happening!
|
||||
(conceptually, it delegates the management of the Pods to the Replica Set)
|
||||
|
||||
- This might seem weird (why this extra layer?) but will soon make sense
|
||||
|
||||
(when we will look at how rolling updates work!)
|
||||
|
||||
---
|
||||
|
||||
## Streaming logs of multiple pods
|
||||
|
||||
- What happens if we restart `kubectl logs`?
|
||||
- What happens if we try `kubectl logs` now that we have multiple pods?
|
||||
|
||||
.exercise[
|
||||
|
||||
- Interrupt `kubectl logs` (with Ctrl-C)
|
||||
|
||||
<!--
|
||||
```tmux last-pane```
|
||||
```key ^C```
|
||||
-->
|
||||
|
||||
- Restart it:
|
||||
```bash
|
||||
kubectl logs deploy/pingpong --tail 1 --follow
|
||||
kubectl logs deploy/pingpong --tail 3
|
||||
```
|
||||
|
||||
<!--
|
||||
```wait using pod/pingpong-```
|
||||
```tmux last-pane```
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
`kubectl logs` will warn us that multiple pods were found, and that it's showing us only one of them.
|
||||
`kubectl logs` will warn us that multiple pods were found.
|
||||
|
||||
Let's leave `kubectl logs` running while we keep exploring.
|
||||
It is showing us only one of them.
|
||||
|
||||
We'll see later how to address that shortcoming.
|
||||
|
||||
---
|
||||
|
||||
|
||||
## Resilience
|
||||
|
||||
- The *deployment* `pingpong` watches its *replica set*
|
||||
@@ -524,365 +517,7 @@ Let's leave `kubectl logs` running while we keep exploring.
|
||||
|
||||
- The pod is then killed, and `kubectl logs` exits
|
||||
|
||||
---
|
||||
???
|
||||
|
||||
## Viewing logs of multiple pods
|
||||
|
||||
- When we specify a deployment name, only one single pod's logs are shown
|
||||
|
||||
- We can view the logs of multiple pods by specifying a *selector*
|
||||
|
||||
- A selector is a logic expression using *labels*
|
||||
|
||||
- If we check the pods created by the deployment, they all have the label `app=pingpong`
|
||||
|
||||
(this is just a default label that gets added when using `kubectl create deployment`)
|
||||
|
||||
.exercise[
|
||||
|
||||
- View the last line of log from all pods with the `app=pingpong` label:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
### Streaming logs of multiple pods
|
||||
|
||||
- Can we stream the logs of all our `pingpong` pods?
|
||||
|
||||
.exercise[
|
||||
|
||||
- Combine `-l` and `-f` flags:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!--
|
||||
```wait seq=```
|
||||
```key ^C```
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
*Note: combining `-l` and `-f` is only possible since Kubernetes 1.14!*
|
||||
|
||||
*Let's try to understand why ...*
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
### Streaming logs of many pods
|
||||
|
||||
- Let's see what happens if we try to stream the logs for more than 5 pods
|
||||
|
||||
.exercise[
|
||||
|
||||
- Scale up our deployment:
|
||||
```bash
|
||||
kubectl scale deployment pingpong --replicas=8
|
||||
```
|
||||
|
||||
- Stream the logs:
|
||||
```bash
|
||||
kubectl logs -l app=pingpong --tail 1 -f
|
||||
```
|
||||
|
||||
<!-- ```wait error:``` -->
|
||||
|
||||
]
|
||||
|
||||
We see a message like the following one:
|
||||
```
|
||||
error: you are attempting to follow 8 log streams,
|
||||
but maximum allowed concurency is 5,
|
||||
use --max-log-requests to increase the limit
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Why can't we stream the logs of many pods?
|
||||
|
||||
- `kubectl` opens one connection to the API server per pod
|
||||
|
||||
- For each pod, the API server opens one extra connection to the corresponding kubelet
|
||||
|
||||
- If there are 1000 pods in our deployment, that's 1000 inbound + 1000 outbound connections on the API server
|
||||
|
||||
- This could easily put a lot of stress on the API server
|
||||
|
||||
- Prior Kubernetes 1.14, it was decided to *not* allow multiple connections
|
||||
|
||||
- From Kubernetes 1.14, it is allowed, but limited to 5 connections
|
||||
|
||||
(this can be changed with `--max-log-requests`)
|
||||
|
||||
- For more details about the rationale, see
|
||||
[PR #67573](https://github.com/kubernetes/kubernetes/pull/67573)
|
||||
|
||||
---
|
||||
|
||||
## Shortcomings of `kubectl logs`
|
||||
|
||||
- We don't see which pod sent which log line
|
||||
|
||||
- If pods are restarted / replaced, the log stream stops
|
||||
|
||||
- If new pods are added, we don't see their logs
|
||||
|
||||
- To stream the logs of multiple pods, we need to write a selector
|
||||
|
||||
- There are external tools to address these shortcomings
|
||||
|
||||
(e.g.: [Stern](https://github.com/wercker/stern))
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## `kubectl logs -l ... --tail N`
|
||||
|
||||
- If we run this with Kubernetes 1.12, the last command shows multiple lines
|
||||
|
||||
- This is a regression when `--tail` is used together with `-l`/`--selector`
|
||||
|
||||
- It always shows the last 10 lines of output for each container
|
||||
|
||||
(instead of the number of lines specified on the command line)
|
||||
|
||||
- The problem was fixed in Kubernetes 1.13
|
||||
|
||||
*See [#70554](https://github.com/kubernetes/kubernetes/issues/70554) for details.*
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## Party tricks involving IP addresses
|
||||
|
||||
- It is possible to specify an IP address with less than 4 bytes
|
||||
|
||||
(example: `127.1`)
|
||||
|
||||
- Zeroes are then inserted in the middle
|
||||
|
||||
- As a result, `127.1` expands to `127.0.0.1`
|
||||
|
||||
- So we can `ping 127.1` to ping `localhost`!
|
||||
|
||||
(See [this blog post](https://ma.ttias.be/theres-more-than-one-way-to-write-an-ip-address/
|
||||
) for more details.)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More party tricks with IP addresses
|
||||
|
||||
- We can also ping `1.1`
|
||||
|
||||
- `1.1` will expand to `1.0.0.1`
|
||||
|
||||
- This is one of the addresses of Cloudflare's
|
||||
[public DNS resolver](https://blog.cloudflare.com/announcing-1111/)
|
||||
|
||||
- This is a quick way to check connectivity
|
||||
|
||||
(if we can reach 1.1, we probably have internet access)
|
||||
|
||||
---
|
||||
|
||||
## Creating other kinds of resources
|
||||
|
||||
- Deployments are great for stateless web apps
|
||||
|
||||
(as well as workers that keep running forever)
|
||||
|
||||
- Jobs are great for "long" background work
|
||||
|
||||
("long" being at least minutes our hours)
|
||||
|
||||
- CronJobs are great to schedule Jobs at regular intervals
|
||||
|
||||
(just like the classic UNIX `cron` daemon with its `crontab` files)
|
||||
|
||||
- Pods are great for one-off execution that we don't care about
|
||||
|
||||
(because they don't get automatically restarted if something goes wrong)
|
||||
|
||||
---
|
||||
|
||||
## Creating a Job
|
||||
|
||||
- A Job will create a Pod
|
||||
|
||||
- If the Pod fails, the Job will create another one
|
||||
|
||||
- The Job will keep trying until:
|
||||
|
||||
- either a Pod succeeds,
|
||||
|
||||
- or we hit the *backoff limit* of the Job (default=6)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create a Job that has a 50% chance of success:
|
||||
```bash
|
||||
kubectl create job flipcoin --image=alpine -- sh -c 'exit $(($RANDOM%2))'
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Our Job in action
|
||||
|
||||
- Our Job will create a Pod named `flipcoin-xxxxx`
|
||||
|
||||
- If the Pod succeeds, the Job stops
|
||||
|
||||
- If the Pod fails, the Job creates another Pod
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the status of the Pod(s) created by the Job:
|
||||
```bash
|
||||
kubectl get pods --selector=job-name=flipcoin
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More advanced jobs
|
||||
|
||||
- We can specify a number of "completions" (default=1)
|
||||
|
||||
- This indicates how many times the Job must be executed
|
||||
|
||||
- We can specify the "parallelism" (default=1)
|
||||
|
||||
- This indicates how many Pods should be running in parallel
|
||||
|
||||
- These options cannot be specified with `kubectl create job`
|
||||
|
||||
(we have to write our own YAML manifest to use them)
|
||||
|
||||
---
|
||||
|
||||
## Scheduling periodic background work
|
||||
|
||||
- A Cron Job is a Job that will be executed at specific intervals
|
||||
|
||||
(the name comes from the traditional cronjobs executed by the UNIX crond)
|
||||
|
||||
- It requires a *schedule*, represented as five space-separated fields:
|
||||
|
||||
- minute [0,59]
|
||||
- hour [0,23]
|
||||
- day of the month [1,31]
|
||||
- month of the year [1,12]
|
||||
- day of the week ([0,6] with 0=Sunday)
|
||||
|
||||
- `*` means "all valid values"; `/N` means "every N"
|
||||
|
||||
- Example: `*/3 * * * *` means "every three minutes"
|
||||
|
||||
---
|
||||
|
||||
## Creating a Cron Job
|
||||
|
||||
- Let's create a simple job to be executed every three minutes
|
||||
|
||||
- Careful: make sure that the job terminates!
|
||||
|
||||
(The Cron Job will not hold if a previous job is still running)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create the Cron Job:
|
||||
```bash
|
||||
kubectl create cronjob every3mins --schedule="*/3 * * * *" \
|
||||
--image=alpine -- sleep 10
|
||||
```
|
||||
|
||||
- Check the resource that was created:
|
||||
```bash
|
||||
kubectl get cronjobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Cron Jobs in action
|
||||
|
||||
- At the specified schedule, the Cron Job will create a Job
|
||||
|
||||
- The Job will create a Pod
|
||||
|
||||
- The Job will make sure that the Pod completes
|
||||
|
||||
(re-creating another one if it fails, for instance if its node fails)
|
||||
|
||||
.exercise[
|
||||
|
||||
- Check the Jobs that are created:
|
||||
```bash
|
||||
kubectl get jobs
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
(It will take a few minutes before the first job is scheduled.)
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## What about `kubectl run` before v1.18?
|
||||
|
||||
- Creating a Deployment:
|
||||
|
||||
`kubectl run`
|
||||
|
||||
- Creating a Pod:
|
||||
|
||||
`kubectl run --restart=Never`
|
||||
|
||||
- Creating a Job:
|
||||
|
||||
`kubectl run --restart=OnFailure`
|
||||
|
||||
- Creating a Cron Job:
|
||||
|
||||
`kubectl run --restart=OnFailure --schedule=...`
|
||||
|
||||
*Avoid using these forms, as they are deprecated since Kubernetes 1.18!*
|
||||
|
||||
---
|
||||
|
||||
## Beyond `kubectl create`
|
||||
|
||||
- As hinted earlier, `kubectl create` doesn't always expose all options
|
||||
|
||||
- can't express parallelism or completions of Jobs
|
||||
|
||||
- can't express Pods with multiple containers
|
||||
|
||||
- can't express healthchecks, resource limits
|
||||
|
||||
- etc.
|
||||
|
||||
- `kubectl create` and `kubectl run` are *helpers* that generate YAML manifests
|
||||
|
||||
- If we write these manifests ourselves, we can use all features and options
|
||||
|
||||
- We'll see later how to do that!
|
||||
:EN:- Running pods and deployments
|
||||
:FR:- Créer un pod et un déploiement
|
||||
@@ -438,3 +438,13 @@ class: extra-details
|
||||
- They can also handle TLS certificates, URL rewriting ...
|
||||
|
||||
- They require an *Ingress Controller* to function
|
||||
|
||||
???
|
||||
|
||||
:EN:- Service discovery and load balancing
|
||||
:EN:- Accessing pods through services
|
||||
:EN:- Service types: ClusterIP, NodePort, LoadBalancer
|
||||
|
||||
:FR:- Exposer un service
|
||||
:FR:- Différents types de services : ClusterIP, NodePort, LoadBalancer
|
||||
:FR:- Utiliser CoreDNS pour la *service discovery*
|
||||
|
||||
@@ -578,3 +578,8 @@ $ curl -k https://10.96.0.1
|
||||
- Code running in pods can connect to services using their name
|
||||
|
||||
(e.g. https://kubernetes/...)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Getting started with kubectl
|
||||
:FR:- Se familiariser avec kubectl
|
||||
|
||||
@@ -145,3 +145,8 @@ class: extra-details
|
||||
- Some solutions can fill multiple roles
|
||||
|
||||
(e.g. kube-router can be set up to provide the pod network and/or network policies and/or replace kube-proxy)
|
||||
|
||||
???
|
||||
|
||||
:EN:- The Kubernetes network model
|
||||
:FR:- Le modèle réseau de Kubernetes
|
||||
|
||||
@@ -31,23 +31,17 @@
|
||||
|
||||
---
|
||||
|
||||
## Cloning some repos
|
||||
## Cloning the repository
|
||||
|
||||
- We will need two repositories:
|
||||
- We will need to clone the training repository
|
||||
|
||||
- the first one has the "DockerCoins" demo app
|
||||
- It has the DockerCoins demo app ...
|
||||
|
||||
- the second one has these slides, some scripts, more manifests ...
|
||||
- ... as well as these slides, some scripts, more manifests
|
||||
|
||||
.exercise[
|
||||
|
||||
- Clone the kubercoins repository on `node1`:
|
||||
```bash
|
||||
git clone https://github.com/jpetazzo/kubercoins
|
||||
```
|
||||
|
||||
|
||||
- Clone the container.training repository as well:
|
||||
- Clone the repository on `node1`:
|
||||
```bash
|
||||
git clone https://@@GITREPO@@
|
||||
```
|
||||
@@ -62,9 +56,9 @@ Without further ado, let's start this application!
|
||||
|
||||
.exercise[
|
||||
|
||||
- Apply all the manifests from the kubercoins repository:
|
||||
- Apply the manifest for dockercoins:
|
||||
```bash
|
||||
kubectl apply -f kubercoins/
|
||||
kubectl apply -f ~/container.training/k8s/dockercoins.yaml
|
||||
```
|
||||
|
||||
]
|
||||
@@ -242,3 +236,8 @@ https://@@GITREPO@@/blob/8279a3bce9398f7c1a53bdd95187c53eda4e6435/dockercoins/wo
|
||||
|
||||
A drawing area should show up, and after a few seconds, a blue
|
||||
graph will appear.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Deploying a sample app with YAML manifests
|
||||
:FR:- Lancer une application de démo avec du YAML
|
||||
|
||||
@@ -8,45 +8,164 @@
|
||||
|
||||
- They are left untouched by Kustomize
|
||||
|
||||
- Kustomize lets us define *overlays* that extend or change the resource files
|
||||
- Kustomize lets us define *kustomizations*
|
||||
|
||||
- A *kustomization* is conceptually similar to a *layer*
|
||||
|
||||
- Technically, a *kustomization* is a file named `kustomization.yaml`
|
||||
|
||||
(or a directory containing that files + additional files)
|
||||
|
||||
---
|
||||
|
||||
## Differences with Helm
|
||||
## What's in a kustomization
|
||||
|
||||
- Helm charts use placeholders `{{ like.this }}`
|
||||
- A kustomization can do any combination of the following:
|
||||
|
||||
- Kustomize "bases" are standard Kubernetes YAML
|
||||
- include other kustomizations
|
||||
|
||||
- It is possible to use an existing set of YAML as a Kustomize base
|
||||
- include Kubernetes resources defined in YAML files
|
||||
|
||||
- As a result, writing a Helm chart is more work ...
|
||||
- patch Kubernetes resources (change values)
|
||||
|
||||
- ... But Helm charts are also more powerful; e.g. they can:
|
||||
- add labels or annotations to all resources
|
||||
|
||||
- use flags to conditionally include resources or blocks
|
||||
- specify ConfigMaps and Secrets from literal values or local files
|
||||
|
||||
- check if a given Kubernetes API group is supported
|
||||
|
||||
- [and much more](https://helm.sh/docs/chart_template_guide/)
|
||||
(... And a few more advanced features that we won't cover today!)
|
||||
|
||||
---
|
||||
|
||||
## Kustomize concepts
|
||||
## A simple kustomization
|
||||
|
||||
- Kustomize needs a `kustomization.yaml` file
|
||||
This features a Deployment, Service, and Ingress (in separate files),
|
||||
and a couple of patches (to change the number of replicas and the hostname
|
||||
used in the Ingress).
|
||||
|
||||
- That file can be a *base* or a *variant*
|
||||
```yaml
|
||||
apiVersion: kustomize.config.k8s.io/v1beta1
|
||||
kind: Kustomization
|
||||
patchesStrategicMerge:
|
||||
- scale-deployment.yaml
|
||||
- ingress-hostname.yaml
|
||||
resources:
|
||||
- deployment.yaml
|
||||
- service.yaml
|
||||
- ingress.yaml
|
||||
```
|
||||
|
||||
- If it's a *base*:
|
||||
On the next slide, let's see a more complex example ...
|
||||
|
||||
- it lists YAML resource files to use
|
||||
---
|
||||
|
||||
- If it's a *variant* (or *overlay*):
|
||||
```yaml
|
||||
apiVersion: kustomize.config.k8s.io/v1beta1
|
||||
kind: Kustomization
|
||||
commonLabels:
|
||||
add-this-to-all-my-resources: please
|
||||
patchesStrategicMerge:
|
||||
- prod-scaling.yaml
|
||||
- prod-healthchecks.yaml
|
||||
bases:
|
||||
- api/
|
||||
- frontend/
|
||||
- db/
|
||||
- github.com/example/app?ref=tag-or-branch
|
||||
resources:
|
||||
- ingress.yaml
|
||||
- permissions.yaml
|
||||
configMapGenerator:
|
||||
- name: appconfig
|
||||
files:
|
||||
- global.conf
|
||||
- local.conf=prod.conf
|
||||
```
|
||||
|
||||
- it refers to (at least) one *base*
|
||||
---
|
||||
|
||||
- and some *patches*
|
||||
## Glossary
|
||||
|
||||
- A *base* is a kustomization that is referred to by other kustomizations
|
||||
|
||||
- An *overlay* is a kustomization that refers to other kustomizations
|
||||
|
||||
- A kustomization can be both a base and an overlay at the same time
|
||||
|
||||
(a kustomization can refer to another, which can refer to a third)
|
||||
|
||||
- A *patch* describes how to alter an existing resource
|
||||
|
||||
(e.g. to change the image in a Deployment; or scaling parameters; etc.)
|
||||
|
||||
- A *variant* is the final outcome of applying bases + overlays
|
||||
|
||||
(See the [kustomize glossary](https://github.com/kubernetes-sigs/kustomize/blob/master/docs/glossary.md) for more definitions!)
|
||||
|
||||
---
|
||||
|
||||
## What Kustomize *cannot* do
|
||||
|
||||
- By design, there are a number of things that Kustomize won't do
|
||||
|
||||
- For instance:
|
||||
|
||||
- using command-line arguments or environment variables to generate a variant
|
||||
|
||||
- overlays can only *add* resources, not *remove* them
|
||||
|
||||
- See the full list of [eschewed features](https://github.com/kubernetes-sigs/kustomize/blob/master/docs/eschewedFeatures.md) for more details
|
||||
|
||||
---
|
||||
|
||||
## Kustomize workflows
|
||||
|
||||
- The Kustomize documentation proposes two different workflows
|
||||
|
||||
- *Bespoke configuration*
|
||||
|
||||
- base and overlays managed by the same team
|
||||
|
||||
- *Off-the-shelf configuration* (OTS)
|
||||
|
||||
- base and overlays managed by different teams
|
||||
|
||||
- base is regularly updated by "upstream" (e.g. a vendor)
|
||||
|
||||
- our overlays and patches should (hopefully!) apply cleanly
|
||||
|
||||
- we may regularly update the base, or use a remote base
|
||||
|
||||
---
|
||||
|
||||
## Remote bases
|
||||
|
||||
- Kustomize can fetch remote bases using Hashicorp go-getter library
|
||||
|
||||
- Examples:
|
||||
|
||||
github.com/jpetazzo/kubercoins (remote git repository)
|
||||
|
||||
github.com/jpetazzo/kubercoins?ref=kustomize (specific tag or branch)
|
||||
|
||||
https://releases.hello.io/k/1.0.zip (remote archive)
|
||||
|
||||
https://releases.hello.io/k/1.0.zip//some-subdir (subdirectory in archive)
|
||||
|
||||
- See [hashicorp/go-getter URL format docs](https://github.com/hashicorp/go-getter#url-format) for more examples
|
||||
|
||||
---
|
||||
|
||||
## Managing `kustomization.yaml`
|
||||
|
||||
- There are many ways to manage `kustomization.yaml` files, including:
|
||||
|
||||
- web wizards like [Replicated Ship](https://www.replicated.com/ship/)
|
||||
|
||||
- the `kustomize` CLI
|
||||
|
||||
- opening the file with our favorite text editor
|
||||
|
||||
- Let's see these in action!
|
||||
|
||||
---
|
||||
|
||||
@@ -199,3 +318,63 @@
|
||||
]
|
||||
|
||||
Note: it might take a minute or two for the worker to start.
|
||||
|
||||
---
|
||||
|
||||
## Working with the `kustomize` CLI
|
||||
|
||||
- This is another way to get started
|
||||
|
||||
- General workflow:
|
||||
|
||||
`kustomize create` to generate an empty `kustomization.yaml` file
|
||||
|
||||
`kustomize edit add resource` to add Kubernetes YAML files to it
|
||||
|
||||
`kustomize edit add patch` to add patches to said resources
|
||||
|
||||
`kustomize build | kubectl apply -f-` or `kubectl apply -k .`
|
||||
|
||||
---
|
||||
|
||||
## `kubectl apply -k`
|
||||
|
||||
- Kustomize has been integrated in `kubectl`
|
||||
|
||||
- The `kustomize` tool is still needed if we want to use `create`, `edit`, ...
|
||||
|
||||
- Also, warning: `kubectl apply -k` is a slightly older version than `kustomize`!
|
||||
|
||||
- In recent versions of `kustomize`, bases can be listed in `resources`
|
||||
|
||||
(and `kustomize edit add base` will add its arguments to `resources`)
|
||||
|
||||
- `kubectl apply -k` requires bases to be listed in `bases`
|
||||
|
||||
(so after using `kustomize edit add base`, we need to fix `kustomization.yaml`)
|
||||
|
||||
---
|
||||
|
||||
## Differences with Helm
|
||||
|
||||
- Helm charts use placeholders `{{ like.this }}`
|
||||
|
||||
- Kustomize "bases" are standard Kubernetes YAML
|
||||
|
||||
- It is possible to use an existing set of YAML as a Kustomize base
|
||||
|
||||
- As a result, writing a Helm chart is more work ...
|
||||
|
||||
- ... But Helm charts are also more powerful; e.g. they can:
|
||||
|
||||
- use flags to conditionally include resources or blocks
|
||||
|
||||
- check if a given Kubernetes API group is supported
|
||||
|
||||
- [and much more](https://helm.sh/docs/chart_template_guide/)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Packaging and running apps with Kustomize
|
||||
:FR:- *Packaging* d'applications avec Kustomize
|
||||
|
||||
|
||||
202
slides/k8s/labels-annotations.md
Normal file
202
slides/k8s/labels-annotations.md
Normal file
@@ -0,0 +1,202 @@
|
||||
# Labels and annotations
|
||||
|
||||
- Most Kubernetes resources can have *labels* and *annotations*
|
||||
|
||||
- Both labels and annotations are arbitrary strings
|
||||
|
||||
(with some limitations that we'll explain in a minute)
|
||||
|
||||
- Both labels and annotations can be added, removed, changed, dynamically
|
||||
|
||||
- This can be done with:
|
||||
|
||||
- the `kubectl edit` command
|
||||
|
||||
- the `kubectl label` and `kubectl annotate`
|
||||
|
||||
- ... many other ways! (`kubectl apply -f`, `kubectl patch`, ...)
|
||||
|
||||
---
|
||||
|
||||
## Viewing labels and annotations
|
||||
|
||||
- Let's see what we get when we create a Deployment
|
||||
|
||||
.exercise[
|
||||
|
||||
- Create a Deployment:
|
||||
```bash
|
||||
kubectl create deployment clock --image=jpetazzo/clock
|
||||
```
|
||||
|
||||
- Look at its annotations and labels:
|
||||
```bash
|
||||
kubectl describe deployment clock
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
So, what do we get?
|
||||
|
||||
---
|
||||
|
||||
## Labels and annotations for our Deployment
|
||||
|
||||
- We see one label:
|
||||
```
|
||||
Labels: app=clock
|
||||
```
|
||||
|
||||
- This is added by `kubectl create deployment`
|
||||
|
||||
- And one annotation:
|
||||
```
|
||||
Annotations: deployment.kubernetes.io/revision: 1
|
||||
```
|
||||
|
||||
- This is to keep track of successive versions when doing rolling updates
|
||||
|
||||
---
|
||||
|
||||
## And for the related Pod?
|
||||
|
||||
- Let's look up the Pod that was created and check it too
|
||||
|
||||
.exercise[
|
||||
|
||||
- Find the name of the Pod:
|
||||
```bash
|
||||
kubectl get pods
|
||||
```
|
||||
|
||||
- Display its information:
|
||||
```bash
|
||||
kubectl describe pod clock-xxxxxxxxxx-yyyyy
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
So, what do we get?
|
||||
|
||||
---
|
||||
|
||||
## Labels and annotations for our Pod
|
||||
|
||||
- We see two labels:
|
||||
```
|
||||
Labels: app=clock
|
||||
pod-template-hash=xxxxxxxxxx
|
||||
```
|
||||
|
||||
- `app=clock` comes from `kubectl create deployment` too
|
||||
|
||||
- `pod-template-hash` was assigned by the Replica Set
|
||||
|
||||
(when we will do rolling updates, each set of Pods will have a different hash)
|
||||
|
||||
- There are no annotations:
|
||||
```
|
||||
Annotations: <none>
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Selectors
|
||||
|
||||
- A *selector* is an expression matching labels
|
||||
|
||||
- It will restrict a command to the objects matching *at least* all these labels
|
||||
|
||||
.exercise[
|
||||
|
||||
- List all the pods with at least `app=clock`:
|
||||
```bash
|
||||
kubectl get pods --selector=app=clock
|
||||
```
|
||||
|
||||
- List all the pods with a label `app`, regardless of its value:
|
||||
```bash
|
||||
kubectl get pods --selector=app
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Settings labels and annotations
|
||||
|
||||
- The easiest method is to use `kubectl label` and `kubectl annotate`
|
||||
|
||||
.exercise[
|
||||
|
||||
- Set a label on the `clock` Deployment:
|
||||
```bash
|
||||
kubectl label deployment clock color=blue
|
||||
```
|
||||
|
||||
- Check it out:
|
||||
```bash
|
||||
kubectl describe deployment clock
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
class: extra-details
|
||||
|
||||
## More on selectors
|
||||
|
||||
- If a selector has multiple labels, it means "match at least these labels"
|
||||
|
||||
Example: `--selector=app=frontend,release=prod`
|
||||
|
||||
- `--selector` can be abbreviated as `-l` (for **l**abels)
|
||||
|
||||
We can also use negative selectors
|
||||
|
||||
Example: `--selector=app!=clock`
|
||||
|
||||
- Selectors can be used with most `kubectl` commands
|
||||
|
||||
Examples: `kubectl delete`, `kubectl label`, ...
|
||||
|
||||
---
|
||||
|
||||
## Other ways to view labels
|
||||
|
||||
- We can use the `--show-labels` flag with `kubectl get`
|
||||
|
||||
.exercise[
|
||||
|
||||
- Show labels for a bunch of objects:
|
||||
```bash
|
||||
kubectl get --show-labels po,rs,deploy,svc,no
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
---
|
||||
|
||||
## Differences between labels and annotations
|
||||
|
||||
- The *key* for both labels and annotations:
|
||||
|
||||
- must start and end with a letter or digit
|
||||
|
||||
- can also have `.` `-` `_` (but not in first or last position)
|
||||
|
||||
- can be up to 63 characters, or 253 + `/` + 63
|
||||
|
||||
- Label *values* are up to 63 characters, with the same restrictions
|
||||
|
||||
- Annotations *values* can have arbitrary characeters (yes, even binary)
|
||||
|
||||
- Maximum length isn't defined
|
||||
|
||||
(dozens of kilobytes is fine, hundreds maybe not so much)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Labels and annotations
|
||||
:FR:- *Labels* et annotations
|
||||
@@ -246,3 +246,10 @@
|
||||
(when we can't or won't dedicate a whole disk to a volume)
|
||||
|
||||
- It's possible to mix both (using distinct Storage Classes)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Static vs dynamic volume provisioning
|
||||
:EN:- Example: local persistent volume provisioner
|
||||
:FR:- Création statique ou dynamique de volumes
|
||||
:FR:- Exemple : création de volumes locaux
|
||||
|
||||
@@ -193,3 +193,8 @@ class: extra-details
|
||||
]
|
||||
|
||||
We can now utilize the cluster exactly as if we're logged into a node, except that it's remote.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Working with remote Kubernetes clusters
|
||||
:FR:- Travailler avec des *clusters* distants
|
||||
|
||||
@@ -145,3 +145,8 @@ But this is outside of the scope of this chapter.
|
||||
The YAML file that we used creates all the resources in the
|
||||
`default` namespace, for simplicity. In a real scenario, you will
|
||||
create the resources in the `kube-system` namespace or in a dedicated namespace.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Centralizing logs
|
||||
:FR:- Centraliser les logs
|
||||
|
||||
@@ -45,7 +45,7 @@ Exactly what we need!
|
||||
|
||||
---
|
||||
|
||||
## Installing Stern
|
||||
## Checking if Stern is installed
|
||||
|
||||
- Run `stern` (without arguments) to check if it's installed:
|
||||
|
||||
@@ -57,7 +57,17 @@ Exactly what we need!
|
||||
stern pod-query [flags]
|
||||
```
|
||||
|
||||
- If it is not installed, the easiest method is to download a [binary release](https://github.com/wercker/stern/releases)
|
||||
- If it's missing, let's see how to install it
|
||||
|
||||
---
|
||||
|
||||
## Installing Stern
|
||||
|
||||
- Stern is written in Go, and Go programs are usually shipped as a single binary
|
||||
|
||||
- We just need to download that binary and put it in our `PATH`!
|
||||
|
||||
- Binary releases are available [here](https://github.com/wercker/stern/releases) on GitHub
|
||||
|
||||
- The following commands will install Stern on a Linux Intel 64 bit machine:
|
||||
```bash
|
||||
@@ -66,7 +76,7 @@ Exactly what we need!
|
||||
sudo chmod +x /usr/local/bin/stern
|
||||
```
|
||||
|
||||
- On OS X, just `brew install stern`
|
||||
- On macOS, we can also `brew install stern` or `port install stern`
|
||||
|
||||
<!-- ##VERSION## -->
|
||||
|
||||
@@ -149,3 +159,8 @@ Exactly what we need!
|
||||
-->
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Viewing pod logs from the CLI
|
||||
:FR:- Consulter les logs des pods depuis la CLI
|
||||
|
||||
@@ -80,3 +80,8 @@ If it shows our nodes and their CPU and memory load, we're good!
|
||||
- kube-resource-report can generate HTML reports
|
||||
|
||||
(https://github.com/hjacobs/kube-resource-report)
|
||||
|
||||
???
|
||||
|
||||
:EN:- The *core metrics pipeline*
|
||||
:FR:- Le *core metrics pipeline*
|
||||
|
||||
@@ -532,3 +532,8 @@ Sometimes it works, sometimes it doesn't. Why?
|
||||
- We want to automate all these steps
|
||||
|
||||
- We want something that works on all networks
|
||||
|
||||
???
|
||||
|
||||
:EN:- Connecting nodes ands pods
|
||||
:FR:- Interconnecter les nœuds et les pods
|
||||
|
||||
@@ -365,3 +365,7 @@ Note: we could have used `--namespace=default` for the same result.
|
||||
|
||||
- Pro-tip: install it on your machine during the next break!
|
||||
|
||||
???
|
||||
|
||||
:EN:- Organizing resources with Namespaces
|
||||
:FR:- Organiser les ressources avec des *namespaces*
|
||||
|
||||
@@ -446,3 +446,8 @@ troubleshoot easily, without having to poke holes in our firewall.
|
||||
- a [very good talk about network policies](https://www.youtube.com/watch?list=PLj6h78yzYM2P-3-xqvmWaZbbI1sW-ulZb&v=3gGpMmYeEO8) at KubeCon North America 2017
|
||||
|
||||
- a repository of [ready-to-use recipes](https://github.com/ahmetb/kubernetes-network-policy-recipes) for network policies
|
||||
|
||||
???
|
||||
|
||||
:EN:- Isolating workloads with Network Policies
|
||||
:FR:- Isolation réseau avec les *network policies*
|
||||
|
||||
@@ -377,3 +377,8 @@ class: extra-details
|
||||
- It should now say "Signature Verified"
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Authenticating with OIDC
|
||||
:FR:- S'identifier avec OIDC
|
||||
|
||||
@@ -1,3 +1,35 @@
|
||||
# Designing an operator
|
||||
|
||||
- Once we understand CRDs and operators, it's tempting to use them everywhere
|
||||
|
||||
- Yes, we can do (almost) everything with operators ...
|
||||
|
||||
- ... But *should we?*
|
||||
|
||||
- Very often, the answer is **“no!”**
|
||||
|
||||
- Operators are powerful, but significantly more complex than other solutions
|
||||
|
||||
---
|
||||
|
||||
## When should we (not) use operators?
|
||||
|
||||
- Operators are great if our app needs to react to cluster events
|
||||
|
||||
(nodes or pods going down, and requiring extensive reconfiguration)
|
||||
|
||||
- Operators *might* be helpful to encapsulate complexity
|
||||
|
||||
(manipulate one single custom resource for an entire stack)
|
||||
|
||||
- Operators are probably overkill if a Helm chart would suffice
|
||||
|
||||
- That being said, if we really want to write an operator ...
|
||||
|
||||
Read on!
|
||||
|
||||
---
|
||||
|
||||
## What does it take to write an operator?
|
||||
|
||||
- Writing a quick-and-dirty operator, or a POC/MVP, is easy
|
||||
@@ -356,3 +388,8 @@ class: extra-details
|
||||
(this is used e.g. by the metrics server)
|
||||
|
||||
- [This documentation page](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/#choosing-a-method-for-adding-custom-resources) compares the features of CRDs and API aggregation
|
||||
|
||||
???
|
||||
|
||||
:EN:- Guidelines to design our own operators
|
||||
:FR:- Comment concevoir nos propres opérateurs
|
||||
|
||||
@@ -615,3 +615,11 @@ After the Kibana UI loads, we need to click around a bit
|
||||
*Operators can be very powerful.
|
||||
<br/>
|
||||
But we need to know exactly the scenarios that they can handle.*
|
||||
|
||||
???
|
||||
|
||||
:EN:- Kubernetes operators
|
||||
:EN:- Deploying ElasticSearch with ECK
|
||||
|
||||
:FR:- Les opérateurs
|
||||
:FR:- Déployer ElasticSearch avec ECK
|
||||
|
||||
@@ -162,3 +162,8 @@ Yes, this may take a little while to update. *(Narrator: it was DNS.)*
|
||||
--
|
||||
|
||||
*Alright, we're back to where we started, when we were running on a single node!*
|
||||
|
||||
???
|
||||
|
||||
:EN:- Running our demo app on Kubernetes
|
||||
:FR:- Faire tourner l'application de démo sur Kubernetes
|
||||
|
||||
@@ -180,3 +180,8 @@ class: extra-details
|
||||
]
|
||||
|
||||
As always, the [documentation](https://kubernetes.io/docs/concepts/workloads/controllers/garbage-collection/) has useful extra information and pointers.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Owners and dependents
|
||||
:FR:- Liens de parenté entre les ressources
|
||||
|
||||
@@ -287,7 +287,7 @@
|
||||
|
||||
- Try to create a Deployment:
|
||||
```bash
|
||||
kubectl run testpsp2 --image=nginx
|
||||
kubectl create deployment testpsp2 --image=nginx
|
||||
```
|
||||
|
||||
- Look at existing resources:
|
||||
@@ -350,7 +350,7 @@ We can get hints at what's happening by looking at the ReplicaSet and Events.
|
||||
|
||||
- Create a Deployment as well:
|
||||
```bash
|
||||
kubectl run testpsp4 --image=nginx
|
||||
kubectl create deployment testpsp4 --image=nginx
|
||||
```
|
||||
|
||||
- Confirm that the Deployment is *not* creating any Pods:
|
||||
@@ -531,3 +531,8 @@ class: extra-details
|
||||
```
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Preventing privilege escalation with Pod Security Policies
|
||||
:FR:- Limiter les droits des conteneurs avec les *Pod Security Policies*
|
||||
|
||||
@@ -678,3 +678,11 @@ were inspired by [Portworx examples on Katacoda](https://katacoda.com/portworx/s
|
||||
- [HA PostgreSQL on Kubernetes with Portworx](https://www.katacoda.com/portworx/scenarios/px-k8s-postgres-all-in-one)
|
||||
|
||||
(with adaptations to use a Stateful Set and simplify PostgreSQL's setup)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Using highly available persistent volumes
|
||||
:EN:- Example: deploying a database that can withstand node outages
|
||||
|
||||
:FR:- Utilisation de volumes à haute disponibilité
|
||||
:FR:- Exemple : déployer une base de données survivant à la défaillance d'un nœud
|
||||
|
||||
@@ -562,3 +562,8 @@ class: extra-details
|
||||
Don't panic if you don't know these tools!
|
||||
|
||||
...But make sure at least one person in your team is on it 💯
|
||||
|
||||
???
|
||||
|
||||
:EN:- Collecting metrics with Prometheus
|
||||
:FR:- Collecter des métriques avec Prometheus
|
||||
|
||||
@@ -536,3 +536,15 @@ services.nodeports 0 0
|
||||
- [static demo](https://hjacobs.github.io/kube-resource-report/sample-report/output/index.html)
|
||||
|
|
||||
[live demo](https://kube-resource-report.demo.j-serv.de/applications.html)
|
||||
|
||||
???
|
||||
|
||||
:EN:- Setting compute resource limits
|
||||
:EN:- Defining default policies for resource usage
|
||||
:EN:- Managing cluster allocation and quotas
|
||||
:EN:- Resource management in practice
|
||||
|
||||
:FR:- Allouer et limiter les ressources des conteneurs
|
||||
:FR:- Définir des ressources par défaut
|
||||
:FR:- Gérer les quotas de ressources au niveau du cluster
|
||||
:FR:- Conseils pratiques
|
||||
|
||||
@@ -437,3 +437,12 @@ class: extra-details
|
||||
]
|
||||
|
||||
]
|
||||
|
||||
???
|
||||
|
||||
:EN:- Rolling updates
|
||||
:EN:- Rolling back a bad deployment
|
||||
|
||||
:FR:- Mettre à jour un déploiement
|
||||
:FR:- Concept de *rolling update* et *rollback*
|
||||
:FR:- Paramétrer la vitesse de déploiement
|
||||
|
||||
@@ -200,3 +200,8 @@ Now we can access the IP addresses of our services through `$HASHER` and `$RNG`.
|
||||
- `rng` is not (it should take about 700 milliseconds if there are 10 workers)
|
||||
|
||||
- Something is wrong with `rng`, but ... what?
|
||||
|
||||
???
|
||||
|
||||
:EN:- Scaling up our demo app
|
||||
:FR:- *Scale up* de l'application de démo
|
||||
|
||||
@@ -32,11 +32,7 @@
|
||||
|
||||
- Doesn't set up the overlay network
|
||||
|
||||
- Doesn't set up multi-master (no high availability)
|
||||
|
||||
--
|
||||
|
||||
(At least ... not yet! Though it's [experimental in 1.12](https://kubernetes.io/docs/setup/independent/high-availability/).)
|
||||
- [Some extra steps](https://kubernetes.io/docs/setup/independent/high-availability/) to support HA control plane
|
||||
|
||||
--
|
||||
|
||||
@@ -44,18 +40,29 @@
|
||||
|
||||
---
|
||||
|
||||
## Managed options
|
||||
|
||||
- On AWS: [EKS](https://aws.amazon.com/eks/),
|
||||
[eksctl](https://eksctl.io/)
|
||||
|
||||
- On Azure: [AKS](https://azure.microsoft.com/services/kubernetes-service/)
|
||||
|
||||
- On DigitalOcean: [DOK](https://www.digitalocean.com/products/kubernetes/)
|
||||
|
||||
- On Google Cloud: [GKE](https://cloud.google.com/kubernetes-engine/)
|
||||
|
||||
- On Linode: [LKE](https://www.linode.com/products/kubernetes/)
|
||||
|
||||
- On OVHcloud: [Managed Kubernetes Service](https://www.ovhcloud.com/en/public-cloud/kubernetes/)
|
||||
|
||||
- On Scaleway: [Kapsule](https://www.scaleway.com/en/kubernetes-kapsule/)
|
||||
|
||||
- and much more!
|
||||
|
||||
---
|
||||
|
||||
## Other deployment options
|
||||
|
||||
- [AKS](https://azure.microsoft.com/services/kubernetes-service/):
|
||||
managed Kubernetes on Azure
|
||||
|
||||
- [GKE](https://cloud.google.com/kubernetes-engine/):
|
||||
managed Kubernetes on Google Cloud
|
||||
|
||||
- [EKS](https://aws.amazon.com/eks/),
|
||||
[eksctl](https://eksctl.io/):
|
||||
managed Kubernetes on AWS
|
||||
|
||||
- [kops](https://github.com/kubernetes/kops):
|
||||
customizable deployments on AWS, Digital Ocean, GCE (beta), vSphere (alpha)
|
||||
|
||||
@@ -92,3 +99,8 @@
|
||||
- For a longer list, check the Kubernetes documentation:
|
||||
<br/>
|
||||
it has a great guide to [pick the right solution](https://kubernetes.io/docs/setup/#production-environment) to set up Kubernetes.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Overview of the kubeadm installer
|
||||
:FR:- Survol de kubeadm
|
||||
|
||||
@@ -250,6 +250,11 @@ with a cloud provider
|
||||
|
||||
- OVH
|
||||
|
||||
- Scaleway (private beta)
|
||||
- Scaleway
|
||||
|
||||
- ...
|
||||
|
||||
???
|
||||
|
||||
:EN:- Installing a managed cluster
|
||||
:FR:- Installer un cluster infogéré
|
||||
|
||||
@@ -108,3 +108,8 @@
|
||||
<br/>(do they need training?)
|
||||
|
||||
- etc.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Various ways to set up Kubernetes
|
||||
:FR:- Différentes méthodes pour installer Kubernetes
|
||||
|
||||
@@ -115,4 +115,9 @@
|
||||
There might be a long pause before the first layer is pulled,
|
||||
because the API behind `docker pull` doesn't allow to stream build logs, and there is no feedback during the build.
|
||||
|
||||
It is possible to view the build logs by setting up an account on [ctr.run](https://ctr.run/).
|
||||
It is possible to view the build logs by setting up an account on [ctr.run](https://ctr.run/).
|
||||
|
||||
???
|
||||
|
||||
:EN:- Shipping images to Kubernetes
|
||||
:FR:- Déployer des images sur notre cluster
|
||||
|
||||
@@ -600,3 +600,13 @@ This will trigger the following actions.
|
||||
5. The PersistentVolumeClaimBinder associates the PVs and the PVCs together.
|
||||
|
||||
6. PVCs are now bound, the Pods can start.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Deploying apps with Stateful Sets
|
||||
:EN:- Example: deploying a Consul cluster
|
||||
:EN:- Understanding Persistent Volume Claims and Storage Classes
|
||||
:FR:- Déployer une application avec un *Stateful Set*
|
||||
:FR:- Example : lancer un cluster Consul
|
||||
:FR:- Comprendre les *Persistent Volume Claims* et *Storage Classes*
|
||||
|
||||
|
||||
@@ -239,3 +239,8 @@ The `-node1` suffix was added automatically by kubelet.
|
||||
If we delete the pod (with `kubectl delete`), it will be recreated immediately.
|
||||
|
||||
To delete the pod, we need to delete (or move) the manifest file.
|
||||
|
||||
???
|
||||
|
||||
:EN:- Static pods
|
||||
:FR:- Les *static pods*
|
||||
|
||||
@@ -88,3 +88,8 @@ class: extra-details
|
||||
```
|
||||
|
||||
- Check [the documentation](https://kubernetes.io/docs/setup/release/version-skew-policy/#kubectl) for the whole story about compatibility
|
||||
|
||||
???
|
||||
|
||||
:EN:- Kubernetes versioning and compatibility
|
||||
:FR:- Les versions de Kubernetes et leur compatibilité
|
||||
|
||||
@@ -404,7 +404,7 @@ 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 && git clone https://github.com/octocat/Spoon-Knife /www" ]
|
||||
volumeMounts:
|
||||
- name: www
|
||||
mountPath: /www/
|
||||
@@ -417,9 +417,12 @@ spec:
|
||||
|
||||
.exercise[
|
||||
|
||||
- Repeat the same operation as earlier
|
||||
- Create the pod:
|
||||
```bash
|
||||
kubectl create -f ~/container.training/k8s/nginx-4-with-init.yaml
|
||||
```
|
||||
|
||||
(try to send HTTP requests as soon as the pod comes up)
|
||||
- Try to send HTTP requests as soon as the pod comes up
|
||||
|
||||
<!--
|
||||
```key ^D```
|
||||
@@ -467,3 +470,11 @@ spec:
|
||||
- A volume survives across container restarts
|
||||
|
||||
- A volume is destroyed (or, for remote storage, detached) when the pod is destroyed
|
||||
|
||||
???
|
||||
|
||||
:EN:- Sharing data between containers with volumes
|
||||
:EN:- When and how to use Init Containers
|
||||
|
||||
:FR:- Partager des données grâce aux volumes
|
||||
:FR:- Quand et comment utiliser un *Init Container*
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user