165 lines
3.8 KiB
YAML
165 lines
3.8 KiB
YAML
---
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apiVersion: v1
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kind: Service
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metadata:
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name: zk-headless
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labels:
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app: zk-headless
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spec:
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ports:
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- port: 2888
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name: server
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- port: 3888
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name: leader-election
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clusterIP: None
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selector:
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app: zk
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: zk-config
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data:
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ensemble: "zk-0;zk-1;zk-2"
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jvm.heap: "2G"
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tick: "2000"
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init: "10"
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sync: "5"
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client.cnxns: "60"
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snap.retain: "3"
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purge.interval: "1"
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---
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apiVersion: policy/v1beta1
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kind: PodDisruptionBudget
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metadata:
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name: zk-budget
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spec:
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selector:
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matchLabels:
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app: zk
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minAvailable: 2
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---
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apiVersion: apps/v1beta1
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kind: StatefulSet
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metadata:
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name: zk
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spec:
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serviceName: zk-headless
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replicas: 3
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template:
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metadata:
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labels:
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app: zk
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annotations:
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pod.alpha.kubernetes.io/initialized: "true"
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scheduler.alpha.kubernetes.io/affinity: >
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{
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"podAntiAffinity": {
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"requiredDuringSchedulingRequiredDuringExecution": [{
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"labelSelector": {
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"matchExpressions": [{
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"key": "app",
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"operator": "In",
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"values": ["zk-headless"]
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}]
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},
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"topologyKey": "kubernetes.io/hostname"
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}]
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}
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}
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spec:
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containers:
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- name: k8szk
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imagePullPolicy: Always
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image: gcr.io/google_samples/k8szk:v1
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resources:
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requests:
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memory: "4Gi"
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cpu: "1"
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ports:
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- containerPort: 2181
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name: client
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- containerPort: 2888
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name: server
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- containerPort: 3888
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name: leader-election
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env:
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- name : ZK_ENSEMBLE
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: ensemble
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- name : ZK_HEAP_SIZE
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: jvm.heap
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- name : ZK_TICK_TIME
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: tick
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- name : ZK_INIT_LIMIT
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: init
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- name : ZK_SYNC_LIMIT
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: tick
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- name : ZK_MAX_CLIENT_CNXNS
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: client.cnxns
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- name: ZK_SNAP_RETAIN_COUNT
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: snap.retain
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- name: ZK_PURGE_INTERVAL
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valueFrom:
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configMapKeyRef:
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name: zk-config
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key: purge.interval
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- name: ZK_CLIENT_PORT
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value: "2181"
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- name: ZK_SERVER_PORT
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value: "2888"
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- name: ZK_ELECTION_PORT
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value: "3888"
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command:
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- sh
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- -c
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- zkGenConfig.sh && zkServer.sh start-foreground
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readinessProbe:
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exec:
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command:
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- "zkOk.sh"
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initialDelaySeconds: 15
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timeoutSeconds: 5
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livenessProbe:
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exec:
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command:
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- "zkOk.sh"
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initialDelaySeconds: 15
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timeoutSeconds: 5
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volumeMounts:
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- name: datadir
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mountPath: /var/lib/zookeeper
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securityContext:
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runAsUser: 1000
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fsGroup: 1000
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volumeClaimTemplates:
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- metadata:
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name: datadir
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annotations:
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volume.alpha.kubernetes.io/storage-class: anything
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spec:
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accessModes: [ "ReadWriteOnce" ]
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resources:
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requests:
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storage: 20Gi
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