如何解决Helm Chart:Wordpress部署问题达到mariadb
我无法使用Rancher Catalog和bitnami / wordpress Helm Chart部署Wordpress。 MariaDB pod运行正常,但wordpress pod错误显示为
ReplicaSet "wordpress-557fcb8469" has timed out progressing.; Deployment does not have minimum availability.
同样来自wordpress pod日志:
Error executing 'postInstallation': Failed to connect to wordpress-mariadb:3306 after 36 tries
以及使用wordpress pod shell时:
I have no name!@wordpress-557fcb8469-gj585:/$ mysql -h wordpress-mariadb -u root -p
Enter password:
ERROR 2005 (HY000): Unknown MySQL server host 'wordpress-mariadb' (-3)
但是
I have no name!@wordpress-557fcb8469-gj585:/$ mysql -h 10.42.0.8 -u root -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 16597
Server version: 10.3.22-MariaDB Source distribution
有什么线索可以设置错吗?
Helm和Kubernetes的版本:
version.BuildInfo{Version:"v3.2.4",GitCommit:"0ad800ef43d3b826f31a5ad8dfbb4fe05d143688",GitTreeState:"clean",GoVersion:"go1.13.12"}
Client Version: version.Info{Major:"1",Minor:"17",GitVersion:"v1.17.6",GitCommit:"d32e40e20d167e103faf894261614c5b45c44198",BuildDate:"2020-05-20T13:16:24Z",GoVersion:"go1.13.9",Compiler:"gc",Platform:"linux/amd64"}
Server Version: version.Info{Major:"1",Minor:"18",GitVersion:"v1.18.3",GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40",BuildDate:"2020-05-20T12:43:34Z",Platform:"linux/amd64"}
wordpress
名称空间中的Pod和服务:
> kubectl get pods,svc -owide --namespace=wordpress
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod/wordpress-6647794f9b-4mmxd 0/1 Running 20 104m 10.42.0.19 dev-app <none> <none>
pod/wordpress-mariadb-0 1/1 Running 1 26h 10.42.0.14 dev-app <none> <none>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/wordpress LoadBalancer 10.43.91.13 <pending> 80:30158/TCP,443:30453/TCP 26h app.kubernetes.io/instance=wordpress,app.kubernetes.io/name=wordpress,io.cattle.field/appId=wordpress
service/wordpress-mariadb ClusterIP 10.43.178.123 <none> 3306/TCP 26h app=mariadb,component=master,io.cattle.field/appId=wordpress,release=wordpress
解决方法
未知的MySQL服务器主机'wordpress-mariadb'(-3)
该错误表示DNS故障。请检查您的CoreDNS configuration。检查CoreDNS日志中是否有任何错误。 CoreDNS将外部查询转发到带下划线的节点。还要检查/etc/resolv.conf
中的节点DNS配置。
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