ingress调试

定位 ingress

$ microk8s.kubectl get ingress
$ microk8s.kubectl describe ingress # 查看ingress详情
$ microk8s.kubectl get pods -A -o wide
...
nginx-ingress-microk8s-controller-7hssx   1/1     Running   87         246d
...

查看日志输出

$ microk8s.kubectl logs -f  nginx-ingress-microk8s-controller-7hssx # 跟踪日志

登录到 pod 的 shell 上，进行命令交互

$ microk8s.kubectl exec nginx-ingress-microk8s-controller-7hssx -i -t -- bash

直接在 pod 上运行命令，并返回结果

$ microk8s.kubectl exec nginx-ingress-microk8s-controller-7hssx -- date

查看 ingress 版本

$ microk8s.kubectl exec -it nginx-ingress-microk8s-controller-7hssx -- /nginx-ingress-controller --version
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:    0.24.1
  Build:      git-ce418168f
  Repository: https://github.com/kubernetes/ingress-nginx
-------------------------------------------------------------------------------

设置 DNS

$ microk8s enable dns # 启用
$ microk8s kubectl -n kube-system edit configmap/coredns
$ microk8s disable dns # 停用

查看某个命名空间下的问题

$ microk8s.kubectl describe  pods coredns-f7867546d-rg5g7  --namespace=kube-system

参考资料

https://kubernetes.io/docs/concepts/services-networking/ingress/ https://microk8s.io/docs/addon-dns