k8s部署rabbitmq集群

阿里云创建NAS共享存储的StorageClass：

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: alicloud-nas-subpath-public
provisioner: nasplugin.csi.alibabacloud.com
mountOptions:
- nolock,tcp,noresvport
- vers=3
parameters:
  volumeAs: subpath
  server: "xxxxxx.cn-hangzhou.nas.aliyuncs.com:/"
reclaimPolicy: Retain

---

部署rabbitmq集群：

public-service-ns.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: public-service

rabbitmq-configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: rmq-cluster-config
  namespace: public-service
  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
      #################################################
      # public-service is rabbitmq-cluster's namespace#
      #################################################
      cluster_formation.k8s.hostname_suffix = .rmq-cluster.public-service.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

rabbitmq-rbac.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: rmq-cluster
  namespace: public-service
  
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: Role
metadata:
  name: rmq-cluster
  namespace: public-service
rules:
  - apiGroups:
      - ""
    resources:
      - endpoints
    verbs:
      - get

---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
  name: rmq-cluster
  namespace: public-service
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: rmq-cluster
subjects:
- kind: ServiceAccount
  name: rmq-cluster
  namespace: public-service

rabbitmq-secret.yaml

apiVersion: v1
kind: Secret
metadata:
  name: rmq-cluster-secret
  namespace: public-service
stringData:
  cookie: ERLANG_COOKIE
  username: admin
  password: admin123
type: Opaque

rabbitmq-svc.yaml

apiVersion: v1
kind: Service
metadata:
  name: rmq-cluster
  namespace: public-service
  labels:
    app: rmq-cluster
spec:
  selector:
    app: rmq-cluster
  clusterIP: 172.21.11.245              #指定clusterIP，方便使用
  ports:
  - name: http
    port: 15672
    protocol: TCP
    targetPort: 15672
  - name: amqp
    port: 5672
    protocol: TCP
    targetPort: 5672
  type: ClusterIP

rabbitmq-sts.yaml

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: rmq-cluster
  namespace: public-service
  labels:
    app: rmq-cluster
spec:
  replicas: 3
  selector:
    matchLabels:
      app: rmq-cluster
  serviceName: rmq-cluster
  template:
    metadata:
      labels:
        app: rmq-cluster
    spec:
      serviceAccountName: rmq-cluster
      terminationGracePeriodSeconds: 30
      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
        name: rabbitmq
        image: rabbitmq:3.7-management
        imagePullPolicy: IfNotPresent
        livenessProbe:
          exec:
            command:
            - rabbitmqctl
            - status
          initialDelaySeconds: 30
          timeoutSeconds: 10
        ports:
        - containerPort: 15672
          name: http
          protocol: TCP
        - containerPort: 5672
          name: amqp
          protocol: TCP
        readinessProbe:
          exec:
            command:
            - rabbitmqctl
            - status
          initialDelaySeconds: 10
          timeoutSeconds: 10
        volumeMounts:
        - name: config-volume
          mountPath: /etc/rabbitmq
          readOnly: false
        - name: rabbitmq-storage
          mountPath: /var/lib/rabbitmq
          readOnly: false
      volumes:
      - name: config-volume
        configMap:
          items:
          - key: rabbitmq.conf
            path: rabbitmq.conf
          - key: enabled_plugins
            path: enabled_plugins
          name: rmq-cluster-config
      - name: rabbitmq-storage
        persistentVolumeClaim:
          claimName: rabbitmq-cluster-storage

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rabbitmq-cluster-storage
  namespace: public-service
spec:
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 20Gi
  storageClassName: alicloud-nas-subpath-public

rabbitmq-ingress.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: rabbitmq
  namespace: public-service
spec:
  rules:
    - host: rabbitmq.lzxlinux.com
      http:
        paths:
          - path: /
            backend:
              serviceName: rmq-cluster
              servicePort: 15672

部署完毕后，

kubectl get all -n public-service

NAME                READY   STATUS    RESTARTS   AGE
pod/rmq-cluster-0   1/1     Running   0          4h
pod/rmq-cluster-1   1/1     Running   0          4h
pod/rmq-cluster-2   1/1     Running   0          4h

NAME                  TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)              AGE
service/rmq-cluster   ClusterIP   172.21.11.245   <none>        15672/TCP,5672/TCP   4h

NAME                           READY   AGE
statefulset.apps/rmq-cluster   3/3     4h

添加hosts：rabbitmq.lzxlinux.com，使用初始账号密码guest/guest登录即可。

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