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##
## Heron API server deployment
##
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: heron-apiserver
  name: heron-apiserver
  namespace: default

---

apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: heron-apiserver
  labels:
    app: heron-apiserver
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: heron-apiserver
  namespace: default

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: heron-apiserver
  labels:
    app: heron-apiserver
  namespace: default
spec:
  selector:
    matchLabels:
      app: heron-apiserver
  replicas: 1
  template:
    metadata:
      labels:
        app: heron-apiserver
    spec:
      serviceAccountName: heron-apiserver
      terminationGracePeriodSeconds: 0
      tolerations:
        - key: "node.kubernetes.io/not-ready"
          operator: "Equal"
          effect: "NoExecute"
          tolerationSeconds: 10
        - key: "node.alpha.kubernetes.io/notReady"
          operator: "Equal"
          effect: "NoExecute"
          tolerationSeconds: 10
        - key: "node.alpha.kubernetes.io/unreachable"
          operator: "Equal"
          effect: "NoExecute"
          tolerationSeconds: 10
      initContainers:
        - name: init-heron-apiserver
          image: apache/bookkeeper:4.7.3
          command: ['sh', '-c', '/opt/bookkeeper/bin/dlog admin bind -l /ledgers -s zookeeper:2181 -c distributedlog://zookeeper:2181/heron']
      containers:
        - name: heron-apiserver
          image: heron/heron:latest
          command: ["sh", "-c"]
          args:
            - >-
              heron-apiserver
              --base-template kubernetes
              --cluster kubernetes
              -D heron.statemgr.connection.string=zookeeper:2181
              -D heron.kubernetes.scheduler.uri=http://localhost:8001
              -D heron.executor.docker.image=heron/heron:latest
              -D heron.class.uploader=org.apache.heron.uploader.dlog.DLUploader
              -D heron.uploader.dlog.topologies.namespace.uri=distributedlog://zookeeper:2181/heron
              -D heron.statefulstorage.classname=org.apache.heron.statefulstorage.dlog.DlogStorage
              -D heron.statefulstorage.dlog.namespace.uri=distributedlog://zookeeper:2181/heron
        - name: kubectl-proxy
          image: heron/kubectl:latest
          command: ["sh", "-c"]
          args:
            - >
              kubectl proxy -p 8001
---    
apiVersion: v1
kind: Service
metadata:
  name: heron-apiserver
spec:
  selector:
    app: heron-apiserver
  ports:
    - protocol: TCP
      port: 9000
      targetPort: 9000
  type: NodePort