Mosquitto无法在我的Kubernetes群集中分配请求的地址

Question

我正在尝试在Kubernetes集群中设置我的mosquitto服务器，不知怎的，我得到以下错误，我无法弄清楚为什么。有人能帮助我吗？

错误：

1551171948: mosquitto version 1.4.10 (build date Wed, 13 Feb 2019 00:45:38 +0000) starting
1551171948: Config loaded from /etc/mosquitto/mosquitto.conf.
1551171948: |-- *** auth-plug: startup
1551171948: |-- ** Configured order: http

1551171948: |-- with_tls=false
1551171948: |-- getuser_uri=/api/mosquitto/users
1551171948: |-- superuser_uri=/api/mosquitto/admins
1551171948: |-- aclcheck_uri=/api/mosquitto/permissions
1551171948: |-- getuser_params=(null)
1551171948: |-- superuser_params=(null)
1551171948: |-- aclcheck_paramsi=(null)
1551171948: Opening ipv4 listen socket on port 1883.
1551171948: Error: Cannot assign requested address

Mosquitto.conf：

allow_duplicate_messages false

connection_messages true

log_dest stdout stderr
log_timestamp true
log_type all

persistence false



listener 1883 mosquitto

allow_anonymous true

# Public

# listener 8883 0.0.0.0

listener 9001 0.0.0.0
protocol websockets

allow_anonymous false

auth_plugin /usr/lib/mosquitto-auth-plugin/auth-plugin.so
auth_opt_backends http
auth_opt_http_ip 127.0.0.1
auth_opt_http_getuser_uri /api/mosquitto/users
auth_opt_http_superuser_uri /api/mosquitto/admins
auth_opt_http_aclcheck_uri /api/mosquitto/permissions
auth_opt_acl_cacheseconds 1
auth_opt_auth_cacheseconds 0

Kubernetes.yaml：

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: mosquitto
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: mosquitto
    spec:
      imagePullSecrets:
        - name: abb-login
      containers:
        - name: mosquitto
          image: ****mosquitto:develop
          imagePullPolicy: Always
          ports:
            - containerPort: 9001
              protocol: TCP
            - containerPort: 1883
              protocol: TCP
            - containerPort: 8883
              protocol: TCP

          resources: {}

---
apiVersion: v1
kind: Service
metadata:
  name: mosquitto
spec:
  ports:
    - name: "9001"
      port: 9001
      targetPort: 9001
      protocol: TCP
    - name: "1883"
      port: 1883
      targetPort: 1883
      protocol: TCP
    - name: "8883"
      port: 8883
      targetPort: 8883
      protocol: TCP
  selector:
    app: mosquitto

Answer 1

问题在于端口1883上的侦听器，这可以确定，因为日志尚未到达9001侦听器。

问题很可能是因为mosquitto无法解析主机名mosquitto的IP地址。传递主机名时，名称必须解析为有效的IP地址。在this最近的回答中讨论了同样的问题。也可能是mosquitto正在解析一个未绑定到实际机器上任何接口的地址（例如，如果正在使用地址转换）。

另外对于9001监听器而不是传递0.0.0.0，你可以不包括绑定地址，默认是监听所有接口。