statefulset-executor.yml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {name}
  namespace: {namespace}
spec:
  replicas: {replicas}
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  selector:
    matchLabels:
      app: {name}
  template:
    metadata:
      labels:
        app: {name}
        jina_deployment_name: {jina_deployment_name}
        shard_id: {shard_id}
        pod_type: {pod_type}
        ns: {namespace}
      annotations:
        linkerd.io/inject: enabled
    spec:
      containers:
        - name: executor
          image: {image}
          imagePullPolicy: {pull_policy}
          command: {command}
          args: {args}
          ports:
            - containerPort: {port}
          envFrom:
            - configMapRef:
                name: {name}-configmap
          env:
            - name: POD_UID
              valueFrom:
                fieldRef:
                  fieldPath: metadata.uid
            - name: JINA_DEPLOYMENT_NAME
              value: {jina_deployment_name}
            - name: K8S_STATEFULSET_NAME
              value: {name}
            - name: K8S_NAMESPACE_NAME
              value: {namespace}
            - name: K8S_POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
          startupProbe:
            exec:
              command:
                - jina
                - ping
                - executor
                - 127.0.0.1:{port}
            initialDelaySeconds: 5
            periodSeconds: {period_seconds}
            failureThreshold: {failure_threshold}
            timeoutSeconds: 10
          livenessProbe:
            exec:
              command:
                - jina
                - ping
                - executor
                - 127.0.0.1:{port}
            initialDelaySeconds: 30
            periodSeconds: 5
            timeoutSeconds: 10
          lifecycle:
            preStop:
              exec:
                command: ["/bin/sh", "-c", "sleep 2"]
          volumeMounts:
            - name: {name}-volume
              mountPath: "{volume_path}"
  volumeClaimTemplates:
    - metadata:
        name: {name}-volume
      spec:
        accessModes: {accessModes} # best default accessModes
        storageClassName: {storageClassName} # best storage class
        resources:
          requests:
            storage: {storageCapacity} # best storage class