复制粘贴就能完成k8s搭建rabbitmq集群

复制粘贴就能完成k8s搭建rabbitmq集群

k8s集群搭建看上篇文章即可：https://blog.csdn.net/weixin_43606975/article/details/119947061?spm=1001.2014.3001.5501

rabbitmq集群搭建

1.创建名称空间

kubectl  create ns  rabbitmq

2.创建pv

cat  rabbitmq-pv.yaml
kind: PersistentVolume
apiVersion: v1
metadata:
  name: rabbitmq-pv-volume
  namespace: rabbitmq
  labels:
    type: local
spec:
  storageClassName: manual2
  capacity:
    storage: 2Gi
  accessModes:
    - ReadWriteonce
  hostPath:
    path: "/home/rabbimtq"      
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rabbitmq-pv-claim
  namespace: rabbitmq
spec:
  storageClassName: manual2
  accessModes:
    - ReadWriteonce
  resources:
    requests:
      storage: 2Gi

3.创建配置文件

cat rabbitmq-config.yaml
kind: ConfigMap
apiVersion: v1
metadata:
  name: rabbitmq-cluster-config
  namespace: rabbitmq
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
data:
    enabled_plugins: |
      [rabbitmq_management,rabbitmq_peer_discovery_k8s].
    rabbitmq.conf: |
      default_user = admin
      default_pass = 123456
      ## Cluster formation. See https://www.rabbitmq.com/cluster-formation.html to learn more.
      cluster_formation.peer_discovery_backend = rabbit_peer_discovery_k8s
      cluster_formation.k8s.host = kubernetes.default.svc.cluster.local
      ## Should RabbitMQ node name be computed from the pod's hostname or IP address?
      ## IP addresses are not stable, so using [stable] hostnames is recommended when possible.
      ## Set to "hostname" to use pod hostnames.
      ## When this value is changed, so should the variable used to set the RABBITMQ_NODENAME
      ## environment variable.
      cluster_formation.k8s.address_type = hostname
      ## How often should node cleanup checks run?
      cluster_formation.node_cleanup.interval = 30
      ## Set to false if automatic removal of unknown/absent nodes
      ## is desired. This can be dangerous, see
      ##  * https://www.rabbitmq.com/cluster-formation.html#node-health-checks-and-cleanup
      ##  * https://groups.google.com/forum/#!msg/rabbitmq-users/wuOfzEywHXo/k8z_HWIkBgAJ
      cluster_formation.node_cleanup.only_log_warning = true
      cluster_partition_handling = autoheal
      ## See https://www.rabbitmq.com/ha.html#master-migration-data-locality
      queue_master_locator=min-masters
      ## See https://www.rabbitmq.com/access-control.html#loopback-users
      loopback_users.guest = false
      cluster_formation.randomized_startup_delay_range.min = 0
      cluster_formation.randomized_startup_delay_range.max = 2
      # default is rabbitmq-cluster's namespace
      # hostname_suffix
      cluster_formation.k8s.hostname_suffix = .rabbitmq-cluster.default.svc.cluster.local
      # memory
      vm_memory_high_watermark.absolute = 1GB
      # disk
      disk_free_limit.absolute = 2GB

4.创建认证

cat rabbitmq-rabac.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: rabbitmq-cluster
  namespace: rabbitmq
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: rabbitmq-cluster
  namespace: rabbitmq
rules:
- apiGroups: [""]
  resources: ["endpoints"]
  verbs: ["get"]
---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: rabbitmq-cluster
  namespace: rabbitmq
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: rabbitmq-cluster
subjects:
- kind: ServiceAccount
  name: rabbitmq-cluster
  namespace: rabbitmq

4.创建service

cat rabbitmq-service.yaml
kind: Service
apiVersion: v1
metadata:
  labels:
    app: rabbitmq-cluster
  name: rabbitmq-cluster
  namespace: rabbitmq
spec:
  clusterIP: None
  publishNotReadyAddresses: true
  ports:
  - name: rmqport
    port: 5672
    targetPort: 5672
  - name: http
    port: 15672
  selector:
    app: rabbitmq-cluster

---
kind: Service
apiVersion: v1
metadata:
  labels:
    app: rabbitmq-cluster
  name: rabbitmq-cluster-manage
  namespace: rabbitmq
spec:
  ports:
  - name: http
    port: 15672
    protocol: TCP
    targetPort: 15672
    nodePort: 58080
  - name: qmpb
    protocol: TCP
    port: 5672
    targetPort: 5672
    nodePort: 35671
  selector:
    app: rabbitmq-cluster
  type: NodePort

5.创建StatefulSet

cat rabbitmq-cluster.yaml
kind: StatefulSet
apiVersion: apps/v1
metadata:
  labels:
    app: rabbitmq-cluster
  name: rabbitmq-cluster
  namespace: rabbitmq
spec:
  replicas: 3
  selector:
    matchLabels:
      app: rabbitmq-cluster
  serviceName: rabbitmq-cluster
  template:
    metadata:
      labels:
        app: rabbitmq-cluster
    spec:
      containers:
      - args:
        - -c
        - cp -v /etc/rabbitmq/rabbitmq.conf  ${RABBITMQ_CONFIG_FILE} ; exec docker-entrypoint.sh
          rabbitmq-server
        command:
        - sh
        env:
        - name: TZ
          value: 'Asia/Shanghai'
        - name: RABBITMQ_ERLANG_cookie
          value: 'SWvCP0Hrqv43NG7GybHC95ntCJKoW8UyNFWnBEWG8TY='
        - name: K8S_SERVICE_NAME
          value: rabbitmq-cluster
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: RABBITMQ_USE_LonGNAME
          value: "true"
        - name: RABBITMQ_NODENAME
          value: rabbit@$(POD_NAME).$(K8S_SERVICE_NAME).$(POD_NAMESPACE).svc.cluster.local
        - name: RABBITMQ_CONFIG_FILE
          value: /var/lib/rabbitmq/rabbitmq.conf
        image: rabbitmq:3.8.3-management
        imagePullPolicy: IfNotPresent
        livenessProbe:
          exec:
            command:
            - rabbitmq-diagnostics
            - status
          initialDelaySeconds: 60
          periodSeconds: 60
          timeoutSeconds: 15
        name: rabbitmq
        ports:
        - containerPort: 15672
          name: http
          protocol: TCP
        - containerPort: 5672
          name: amqp
          protocol: TCP
        readinessProbe:
          exec:
            command:
            - rabbitmq-diagnostics
            - status
          initialDelaySeconds: 20
          periodSeconds: 60
          timeoutSeconds: 10
        volumeMounts:  #容器挂载路径
        - mountPath: /etc/rabbitmq
          name: config-volume
          readOnly: false
        - mountPath: /var/lib/rabbitmq
          name: rabbitmq-storage
          readOnly: false
        - name: timezone
          mountPath: /etc/localtime
          readOnly: true
      serviceAccountName: rabbitmq-cluster
      terminationGracePeriodSeconds: 30
      volumes:    #物理机路径
      - name: config-volume
        configMap:
          items:
          - key: rabbitmq.conf
            path: rabbitmq.conf
          - key: enabled_plugins
            path: enabled_plugins
          name: rabbitmq-cluster-config
      - name: timezone
        hostPath:
          path: /usr/share/zoneinfo/Asia/Shanghai
      - name: rabbitmq-storage
        persistentVolumeClaim:    #pvc
          claimName: rabbitmq-pv-claim

6.启动

kubectl  apply -f .

7.查看

kubectl  get sts,pod,svc -n rabbitmq

8.查看集群状态并添加进集群

kubectl  exec -it  pod/rabbitmq-cluster-1 -n rabbitmq bash #进入pod
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) cluster_status #查看集群状态
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) stop_app  #停止
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) join_cluster rabbit@rabbitmq-cluster-0 #把0节点加入
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) join_cluster rabbit@rabbitmq-cluster-2
#把1节点加如
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) start_app #启动
rabbitmqctl --erlang-cookie $(cat $HOME/.erlang.cookie) cluster_status #查看是否加入
节点2其它同理

9.查看web界面
k8s-master_ip+58080端口，用户名密码：admin/123456

10.创建队列是否正常

END!!!