k8s-infra-cluster/infra/nats-cluster.yaml

---
# Source: nats/templates/pod-disruption-budget.yaml
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  labels:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster
spec:
  maxUnavailable: 1
  selector:
    matchLabels:
      app.kubernetes.io/component: nats
      app.kubernetes.io/instance: nats-cluster
      app.kubernetes.io/name: nats
---
# Source: nats/templates/nats-box/contexts-secret.yaml
apiVersion: v1
kind: Secret
metadata:
  labels:
    app.kubernetes.io/component: nats-box
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster-box-contexts
stringData:
  default.json: |
    {
      "url": "nats://nats-cluster"
    }
type: Opaque
---
# Source: nats/templates/config-map.yaml
apiVersion: v1
data:
  nats.conf: |
    {
      "cluster": {
        "name": "nats-cluster",
        "no_advertise": true,
        "port": 6222,
        "routes": [
          "nats://nats-cluster-0.nats-cluster-headless:6222",
          "nats://nats-cluster-1.nats-cluster-headless:6222",
          "nats://nats-cluster-2.nats-cluster-headless:6222"
        ]
      },
      "http_port": 8222,
      "jetstream": {
        "max_file_store": 10Gi,
        "max_memory_store": 0,
        "store_dir": "/data"
      },
      "lame_duck_duration": "30s",
      "lame_duck_grace_period": "10s",
      "pid_file": "/var/run/nats/nats.pid",
      "port": 4222,
      "server_name": $SERVER_NAME
    }
kind: ConfigMap
metadata:
  labels:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster-config
---
# Source: nats/templates/headless-service.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster-headless
spec:
  clusterIP: None
  ports:
  - appProtocol: tcp
    name: nats
    port: 4222
    targetPort: nats
  - appProtocol: tcp
    name: cluster
    port: 6222
    targetPort: cluster
  - appProtocol: http
    name: monitor
    port: 8222
    targetPort: monitor
  publishNotReadyAddresses: true
  selector:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/name: nats
---
# Source: nats/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster
spec:
  ports:
  - appProtocol: tcp
    name: nats
    port: 4222
    targetPort: nats
  selector:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/name: nats
---
# Source: nats/templates/nats-box/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app.kubernetes.io/component: nats-box
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster-box
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/component: nats-box
      app.kubernetes.io/instance: nats-cluster
      app.kubernetes.io/name: nats
  template:
    metadata:
      labels:
        app.kubernetes.io/component: nats-box
        app.kubernetes.io/instance: nats-cluster
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/name: nats
        app.kubernetes.io/version: 2.12.5
        helm.sh/chart: nats-2.12.5
    spec:
      containers:
      - args:
        - sh
        - -ec
        - trap true INT TERM; sleep infinity & wait
        command:
        - sh
        - -ec
        - |
          work_dir="$(pwd)"
          mkdir -p "$XDG_CONFIG_HOME/nats"
          cd "$XDG_CONFIG_HOME/nats"
          if ! [ -s context ]; then
            ln -s /etc/nats-contexts context
          fi
          if ! [ -f context.txt ]; then
            echo -n "default" > context.txt
          fi
          cd "$work_dir"
          exec /entrypoint.sh "$@"
        - --
        image: natsio/nats-box:0.19.3
        name: nats-box
        resources: null
        volumeMounts:
        - mountPath: /etc/nats-contexts
          name: contexts
      enableServiceLinks: false
      volumes:
      - name: contexts
        secret:
          secretName: nats-cluster-box-contexts
---
# Source: nats/templates/stateful-set.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app.kubernetes.io/component: nats
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster
spec:
  podManagementPolicy: Parallel
  replicas: 3
  selector:
    matchLabels:
      app.kubernetes.io/component: nats
      app.kubernetes.io/instance: nats-cluster
      app.kubernetes.io/name: nats
  serviceName: nats-cluster-headless
  template:
    metadata:
      annotations: null
      labels:
        app.kubernetes.io/component: nats
        app.kubernetes.io/instance: nats-cluster
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/name: nats
        app.kubernetes.io/version: 2.12.5
        helm.sh/chart: nats-2.12.5
    spec:
      containers:
      - args:
        - --config
        - /etc/nats-config/nats.conf
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: SERVER_NAME
          value: $(POD_NAME)
        image: nats:2.12.5-alpine
        lifecycle:
          preStop:
            exec:
              command:
              - nats-server
              - -sl=ldm=/var/run/nats/nats.pid
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /healthz?js-enabled-only=true
            port: monitor
          initialDelaySeconds: 10
          periodSeconds: 30
          successThreshold: 1
          timeoutSeconds: 5
        name: nats
        ports:
        - containerPort: 4222
          name: nats
        - containerPort: 6222
          name: cluster
        - containerPort: 8222
          name: monitor
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /healthz?js-server-only=true
            port: monitor
          initialDelaySeconds: 10
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        resources: {}
        startupProbe:
          failureThreshold: 90
          httpGet:
            path: /healthz
            port: monitor
          initialDelaySeconds: 10
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        volumeMounts:
        - mountPath: /etc/nats-config
          name: config
        - mountPath: /var/run/nats
          name: pid
        - mountPath: /data
          name: nats-cluster-js
      - args:
        - -pid
        - /var/run/nats/nats.pid
        - -config
        - /etc/nats-config/nats.conf
        image: natsio/nats-server-config-reloader:0.21.1
        name: reloader
        volumeMounts:
        - mountPath: /var/run/nats
          name: pid
        - mountPath: /etc/nats-config
          name: config
      enableServiceLinks: false
      shareProcessNamespace: true
      terminationGracePeriodSeconds: 60
      volumes:
      - configMap:
          name: nats-cluster-config
        name: config
      - emptyDir: {}
        name: pid
  volumeClaimTemplates:
  - metadata:
      name: nats-cluster-js
    spec:
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 10Gi
      storageClassName: longhorn
---
# Source: nats/templates/tests/request-reply.yaml
apiVersion: v1
kind: Pod
metadata:
  annotations:
    helm.sh/hook: test
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    app.kubernetes.io/component: test-request-reply
    app.kubernetes.io/instance: nats-cluster
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: nats
    app.kubernetes.io/version: 2.12.5
    helm.sh/chart: nats-2.12.5
  name: nats-cluster-test-request-reply
spec:
  containers:
  - args:
    - sh
    - -ec
    - nats reply --echo echo & pid="$!"; sleep 1; nats request echo hi > /tmp/resp;
      kill "$pid"; wait; grep -qF hi /tmp/resp
    command:
    - sh
    - -ec
    - |
      work_dir="$(pwd)"
      mkdir -p "$XDG_CONFIG_HOME/nats"
      cd "$XDG_CONFIG_HOME/nats"
      if ! [ -s context ]; then
        ln -s /etc/nats-contexts context
      fi
      if ! [ -f context.txt ]; then
        echo -n "default" > context.txt
      fi
      cd "$work_dir"
      exec /entrypoint.sh "$@"
    - --
    image: natsio/nats-box:0.19.3
    name: nats-box
    resources: null
    volumeMounts:
    - mountPath: /etc/nats-contexts
      name: contexts
  enableServiceLinks: false
  restartPolicy: Never
  volumes:
  - name: contexts
    secret:
      secretName: nats-cluster-box-contexts