Rancher部署zookeeper集群时，无法绑定请求地址

错误提示 "Cannot assign requested address (Bind failed)"

2022-07-11 03:28:24,363 [myid:1] - ERROR [zookeeper-node1/10.43.226.253:3888:QuorumCnxManager$Listener@958] - Exception while listening
java.net.BindException: Cannot assign requested address (Bind failed)
    at java.base/java.net.PlainSocketImpl.socketBind(Native Method)
    at java.base/java.net.AbstractPlainSocketImpl.bind(Unknown Source)
    at java.base/java.net.ServerSocket.bind(Unknown Source)
    at java.base/java.net.ServerSocket.bind(Unknown Source)
    at org.apache.zookeeper.server.quorum.QuorumCnxManager$Listener.run(QuorumCnxManager.java:931)

原因

因为3888端口通过K8S服务暴露，需要添加配置项quorumListenOnAllIPs=true以保证扫描所有网卡

解决

通过环境变量添加配置项

ZOO_CFG_EXTRA=“quorumListenOnAllIPs=true”