feat(k8s): add kubetcl notes

docs/containers/docker.md

@@ -59,7 +59,7 @@ VMs incur a lot of overhead beyond what is being consumed by your application lo
 
 ---
 
-### Docker CLI
+## Docker CLI
 
 ### [`docker run`](https://docs.docker.com/engine/reference/commandline/run/)
 

docs/containers/kubernetes.md

@@ -1 +1,25 @@
 # Kubernetes
+
+## `kubectl`
+
+### `kubectl get`
+
+```sh
+kubectl config get-contexts  # list available contexts
+
+kubectl get namespaces  # list namespaces inside current context
+
+kubectl get pod -n|--namespace <namespace>  # list pods inside namespace
+kubectl get pod [-n|--namespace <namespace>] <pod> -o|--output jsonpath='{.spec.containers[*].name}'  # list containers inside pod
+```
+
+### `kubectl exec`
+
+```sh
+kubectl exec [-i|--stdin] [-t|--tty] [-n|--namespace <namespace>] <pod> [-c|--container <container>] -- <command>  # execute a command inside a container
+```
+### `kubectl logs`
+
+```sh
+kubectl logs [-f|--follow] [-n|--namespace <namespace>] <pod> [-c|--container]  # get pod/container logs
+```