From 6a5d8234d05617da79ce2eb606a5ea8877c89bce Mon Sep 17 00:00:00 2001
From: Stefan Prodan <stefan.prodan@gmail.com>
Date: Mon, 19 Feb 2018 00:19:07 +0200
Subject: [PATCH] StatefulSets with local storage PV

---
 deploy/local-storage/persistent-volume-0.yaml | 25 ++++++
 deploy/local-storage/persistent-volume-1.yaml | 25 ++++++
 deploy/local-storage/service.yaml             | 13 ++++
 deploy/local-storage/statefulset.yaml         | 76 +++++++++++++++++++
 deploy/local-storage/storage-class.yaml       |  7 ++
 5 files changed, 146 insertions(+)
 create mode 100644 deploy/local-storage/persistent-volume-0.yaml
 create mode 100644 deploy/local-storage/persistent-volume-1.yaml
 create mode 100644 deploy/local-storage/service.yaml
 create mode 100644 deploy/local-storage/statefulset.yaml
 create mode 100644 deploy/local-storage/storage-class.yaml

diff --git a/deploy/local-storage/persistent-volume-0.yaml b/deploy/local-storage/persistent-volume-0.yaml
new file mode 100644
index 0000000..1ae6670
--- /dev/null
+++ b/deploy/local-storage/persistent-volume-0.yaml
@@ -0,0 +1,25 @@
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: podinfo-vol-0
+  annotations:
+    "volume.alpha.kubernetes.io/node-affinity": '{
+      "requiredDuringSchedulingIgnoredDuringExecution": {
+        "nodeSelectorTerms": [
+          { "matchExpressions": [
+              { "key": "kubernetes.io/hostname",
+                "operator": "In",
+                "values": ["kube-node-0"]
+              }
+          ]}
+        ]}}'
+spec:
+  capacity:
+    storage: 1Gi
+  accessModes:
+  - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: local-ssd
+  local:
+    path: /mnt/data
diff --git a/deploy/local-storage/persistent-volume-1.yaml b/deploy/local-storage/persistent-volume-1.yaml
new file mode 100644
index 0000000..8c253f1
--- /dev/null
+++ b/deploy/local-storage/persistent-volume-1.yaml
@@ -0,0 +1,25 @@
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: podinfo-vol-1
+  annotations:
+    "volume.alpha.kubernetes.io/node-affinity": '{
+      "requiredDuringSchedulingIgnoredDuringExecution": {
+        "nodeSelectorTerms": [
+          { "matchExpressions": [
+              { "key": "kubernetes.io/hostname",
+                "operator": "In",
+                "values": ["kube-node-1"]
+              }
+          ]}
+        ]}}'
+spec:
+  capacity:
+    storage: 1Gi
+  accessModes:
+  - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: local-ssd
+  local:
+    path: /mnt/data
diff --git a/deploy/local-storage/service.yaml b/deploy/local-storage/service.yaml
new file mode 100644
index 0000000..bfec26a
--- /dev/null
+++ b/deploy/local-storage/service.yaml
@@ -0,0 +1,13 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: podinfo
+spec:
+  clusterIP: None
+  publishNotReadyAddresses: false
+  ports:
+  - port: 9898
+    targetPort: 9898
+  selector:
+    app: podinfo
diff --git a/deploy/local-storage/statefulset.yaml b/deploy/local-storage/statefulset.yaml
new file mode 100644
index 0000000..1c64e03
--- /dev/null
+++ b/deploy/local-storage/statefulset.yaml
@@ -0,0 +1,76 @@
+---
+apiVersion: apps/v1beta2
+kind: StatefulSet
+metadata:
+  name: podinfo
+spec:
+  serviceName: "podinfo"
+  replicas: 2
+  podManagementPolicy: OrderedReady
+  selector:
+    matchLabels:
+      app: podinfo
+  template:
+    metadata:
+      labels:
+        app: podinfo
+      annotations:
+        prometheus.io/scrape: "true"
+    spec:
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+            - matchExpressions:
+              - key: role
+                operator: In
+                values:
+                - local-ssd
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+          - labelSelector:
+              matchExpressions:
+              - key: app
+                operator: In
+                values:
+                - podinfo
+            topologyKey: "kubernetes.io/hostname"
+      containers:
+        - name: probe
+          image: stefanprodan/podinfo:0.0.7
+          command:
+            - ./podinfo
+            - -port=9898
+            - -logtostderr=true
+            - -v=2
+          ports:
+            - name: http
+              containerPort: 9898
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 9898
+          readinessProbe:
+            httpGet:
+              path: /readyz
+              port: 9898
+          volumeMounts:
+          - name: data
+            mountPath: /data
+          resources:
+            limits:
+              cpu: 100m
+              memory: 128Mi
+            requests:
+              cpu: 100m
+              memory: 16Mi
+  volumeClaimTemplates:
+  - metadata:
+      name: data
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      storageClassName: local-ssd
+      resources:
+        requests:
+          storage: 1Gi
diff --git a/deploy/local-storage/storage-class.yaml b/deploy/local-storage/storage-class.yaml
new file mode 100644
index 0000000..adc7331
--- /dev/null
+++ b/deploy/local-storage/storage-class.yaml
@@ -0,0 +1,7 @@
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: local-ssd
+provisioner: kubernetes.io/no-provisioner
+volumeBindingMode: WaitForFirstConsumer