k8s1.6搭建rabbitmq集群

 

# 密码
cat <<END > rabbitmq-secret.yaml
kind: Secret
apiVersion: v1
metadata:
  name: rmq-cluster-secret
  namespace: default
stringData:
  cookie: ERLANG_COOKIE
  password: RABBITMQ_PASS
  url: amqp://RABBITMQ_USER:RABBITMQ_PASS@rmq-cluster-balancer
  username: RABBITMQ_USER
type: Opaque
END
kubectl apply -f rabbitmq-secret.yaml

# 权限
cat <<END > rabbitmq-rabc.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: rmq-cluster
  namespace: default
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: rmq-cluster
  namespace: default
rules:
  - apiGroups:
      - ""
    resources:
      - endpoints
    verbs:
      - get
---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: rmq-cluster
  namespace: default
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: rmq-cluster
subjects:
- kind: ServiceAccount
  name: rmq-cluster
  namespace: default
END
kubectl apply -f rabbitmq-rabc.yaml

# 配置
cat <<END > rabbitmq-configmap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
  name: rmq-cluster-config
  namespace: default
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
data:
    enabled_plugins: |
      [rabbitmq_management,rabbitmq_peer_discovery_k8s].
    rabbitmq.conf: |
      loopback_users.guest = false
      ## Clustering
      cluster_formation.peer_discovery_backend = rabbit_peer_discovery_k8s
      cluster_formation.k8s.host = kubernetes.default.svc.cluster.local
      cluster_formation.k8s.address_type = hostname
      #################################################
      # default is rabbitmq-cluster's namespace#
      #################################################
      cluster_formation.k8s.hostname_suffix = .rmq-cluster.default.svc.cluster.local
      cluster_formation.node_cleanup.interval = 10
      cluster_formation.node_cleanup.only_log_warning = true
      cluster_partition_handling = autoheal
      ## queue master locator
      queue_master_locator=min-masters
END
kubectl apply -f rabbitmq-configmap.yaml

# 服务
cat <<END > rabbitmq-service.yaml
kind: Service
apiVersion: v1
metadata:
  labels:
    app: rmq-cluster
  name: rmq-cluster
  namespace: default
spec:
  clusterIP: None
  publishNotReadyAddresses: true
  ports:
  - name: amqp
    port: 5672
    targetPort: 5672
  selector:
    app: rmq-cluster
END
kubectl apply -f rabbitmq-service.yaml

# 集群
cat <<'END' > rabbitmq-statefulset.yaml
kind: StatefulSet
apiVersion: apps/v1
metadata:
  labels:
    app: rmq-cluster
  name: rmq-cluster
  namespace: default
spec:
  replicas: 3
  selector:
    matchLabels:
      app: rmq-cluster
  serviceName: rmq-cluster
  template:
    metadata:
      labels:
        app: rmq-cluster
    spec:
      containers:
      - args:
        - -c
        - cp -v /etc/rabbitmq/rabbitmq.conf ${RABBITMQ_CONFIG_FILE}; exec docker-entrypoint.sh
          rabbitmq-server
        command:
        - sh
        env:
        - name: RABBITMQ_DEFAULT_USER
          valueFrom:
            secretKeyRef:
              key: username
              name: rmq-cluster-secret
        - name: RABBITMQ_DEFAULT_PASS
          valueFrom:
            secretKeyRef:
              key: password
              name: rmq-cluster-secret
        - name: RABBITMQ_ERLANG_COOKIE
          valueFrom:
            secretKeyRef:
              key: cookie
              name: rmq-cluster-secret
        - name: K8S_SERVICE_NAME
          value: rmq-cluster
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: RABBITMQ_USE_LONGNAME
          value: "true"
        - name: RABBITMQ_NODENAME
          value: "rabbit@$(POD_NAME).rmq-cluster.$(POD_NAMESPACE).svc.cluster.local"
        - name: RABBITMQ_CONFIG_FILE
          value: /var/lib/rabbitmq/rabbitmq.conf
        image: rabbitmq:3.7-management
        imagePullPolicy: IfNotPresent
        livenessProbe:
          exec:
            command:
            - rabbitmqctl
            - status
          initialDelaySeconds: 30
          timeoutSeconds: 10
        name: rabbitmq
        ports:
        - containerPort: 15672
          name: http
          protocol: TCP
        - containerPort: 5672
          name: amqp
          protocol: TCP
        readinessProbe:
          exec:
            command:
            - rabbitmqctl
            - status
          initialDelaySeconds: 10
          timeoutSeconds: 10
        volumeMounts:
        - mountPath: /etc/rabbitmq
          name: config-volume
          readOnly: false
        - mountPath: /var/lib/rabbitmq
          name: rabbitmq-storage
          readOnly: false
      serviceAccountName: rmq-cluster
      terminationGracePeriodSeconds: 30
      volumes:
      - configMap:
          items:
          - key: rabbitmq.conf
            path: rabbitmq.conf
          - key: enabled_plugins
            path: enabled_plugins
          name: rmq-cluster-config
        name: config-volume
  volumeClaimTemplates:
  - metadata:
      name: rabbitmq-storage
      annotations:
        volume.beta.kubernetes.io/storage-class: "ceph-rbd"
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi
END
kubectl apply -f rabbitmq-statefulset.yaml

# 负责均衡
cat <<END > rabbitmq-lb.yaml
kind: Service
apiVersion: v1
metadata:
  labels:
    app: rmq-cluster
    type: LoadBalancer
  name: rmq-cluster-balancer
  namespace: default
spec:
  ports:
  - name: http
    port: 15672
    protocol: TCP
    targetPort: 15672
  - name: amqp
    port: 5672
    protocol: TCP
    targetPort: 5672
  selector:
    app: rmq-cluster
  type: NodePort
END
kubectl apply -f rabbitmq-lb.yaml

# 检查集群
kubectl get pods |grep rmq
kubectl get pv |grep rmq
kubectl get services |grep rmq