How do I get the ID and information of the container in the pod?

General Discussions
1

I opened a pod. There is a container in the pod. I installed the third-party package of Python in the container. Then I want to package the operated container as an image. Is there any way?

Cluster information:

Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.2", GitCommit:"092fbfbf53427de67cac1e9fa54aaa09a28371d7", GitTreeState:"clean", BuildDate:"2021-06-16T12:59:11Z", GoVersion:"go1.16.5", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.2", GitCommit:"092fbfbf53427de67cac1e9fa54aaa09a28371d7", GitTreeState:"clean", BuildDate:"2021-06-16T12:53:14Z", GoVersion:"go1.16.5", Compiler:"gc", Platform:"linux/amd64"}

Installation method:

kubeadm init $@ --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors=NumCPU --kubernetes-version=v1.21.2
kubeadm join $@ --discovery-token-unsafe-skip-ca-verification

Host OS:

Linux k8s-master 3.10.0-957.el7.x86_64 #1 SMP Thu Nov 8 23:39:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

pod info:

jupyterhub-k8s   jupyter-qwe                                0/1     Completed   0          42m
kube-system      calico-kube-controllers-7f6768fdfb-9dns6   1/1     Running     1          13d
kube-system      calico-node-2mvlb                          1/1     Running     1          12d
kube-system      calico-node-mxvz9                          1/1     Running     1          13d
kube-system      coredns-558bd4d5db-tct5q                   1/1     Running     1          13d
kube-system      coredns-558bd4d5db-tmqww                   1/1     Running     1          13d
kube-system      etcd-k8s-master                            1/1     Running     2          13d
kube-system      kube-apiserver-k8s-master                  1/1     Running     1          13d
kube-system      kube-controller-manager-k8s-master         1/1     Running     1          13d
kube-system      kube-proxy-dhdh6                           1/1     Running     0          2d1h
kube-system      kube-proxy-m7dgl                           1/1     Running     0          2d1h
kube-system      kube-scheduler-k8s-master                  1/1     Running     1          13d
merit-cloud      auth-server-86c5d7f994-cgn5q               1/1     Running     0          10h