Personal Docker and Kubectl cheatseet

dockerkub@dockerkub-virtual-machine:~$ docker help

Usage:    docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Options:

      --config string      Location of client config files (default "/home/dockerkub/.docker")

  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with "docker context use")

  -D, --debug              Enable debug mode

  -H, --host list          Daemon socket(s) to connect to

  -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")

      --tls                Use TLS; implied by --tlsverify

      --tlscacert string   Trust certs signed only by this CA (default "/home/dockerkub/.docker/ca.pem")

      --tlscert string     Path to TLS certificate file (default "/home/dockerkub/.docker/cert.pem")

      --tlskey string      Path to TLS key file (default "/home/dockerkub/.docker/key.pem")

      --tlsverify          Use TLS and verify the remote

  -v, --version            Print version information and quit

Management Commands:

  builder     Manage builds

  config      Manage Docker configs

  container   Manage containers

  context     Manage contexts

  engine      Manage the docker engine

  image       Manage images

  network     Manage networks

  node        Manage Swarm nodes

  plugin      Manage plugins

  secret      Manage Docker secrets

  service     Manage services

  stack       Manage Docker stacks

  swarm       Manage Swarm

  system      Manage Docker

  trust       Manage trust on Docker images

  volume      Manage volumes

Commands:

  attach      Attach local standard input, output, and error streams to a running container

  build       Build an image from a Dockerfile

  commit      Create a new image from a container's changes

  cp          Copy files/folders between a container and the local filesystem

  create      Create a new container

  deploy      Deploy a new stack or update an existing stack

  diff        Inspect changes to files or directories on a container's filesystem

  events      Get real time events from the server

  exec        Run a command in a running container

  export      Export a container's filesystem as a tar archive

  history     Show the history of an image

  images      List images

  import      Import the contents from a tarball to create a filesystem image

  info        Display system-wide information

  inspect     Return low-level information on Docker objects

  kill        Kill one or more running containers

  load        Load an image from a tar archive or STDIN

  login       Log in to a Docker registry

  logout      Log out from a Docker registry

  logs        Fetch the logs of a container

  pause       Pause all processes within one or more containers

  port        List port mappings or a specific mapping for the container

  ps          List containers

  pull        Pull an image or a repository from a registry

  push        Push an image or a repository to a registry

  rename      Rename a container

  restart     Restart one or more containers

  rm          Remove one or more containers

  rmi         Remove one or more images

  run         Run a command in a new container

  save        Save one or more images to a tar archive (streamed to STDOUT by default)

  search      Search the Docker Hub for images

  start       Start one or more stopped containers

  stats       Display a live stream of container(s) resource usage statistics

  stop        Stop one or more running containers

  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE

  top         Display the running processes of a container

  unpause     Unpause all processes within one or more containers

  update      Update configuration of one or more containers

  version     Show the Docker version information

  wait        Block until one or more containers stop, then print their exit codes

Run 'docker COMMAND --help' for more information on a command.

Kubernetes on Ubuntu

kubectl get pods

kubectl get namespaces

kubectl get services

kubectl get nodes

kubectl get deployment

kubectl create deployment <name> <image>

microk8s.stop

microk9s.start

<there is no restart>

kubectl create deployment kubernetes-bootcamp --image=gcr.io/google-samples/kubernetes-bootcamp:v1

kubectl delete deployment kubernetes-bootcamp

./kubectl describe node

./kubectl cluster-info

./kubectl get pods --all-namespaces

kubectl get pods -a -o wide --all-namespaces

Restart kubernetes
for SERVICES in kube-proxy kubelet flanneld docker; do
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES
done