docker

docker is the base command for the Docker CLI.

Documentation

• Use the Docker command line
• Docker run reference

• docker
• docker exec
• docker images
• docker logs
• docker network create
• docker ps
• docker pull

• docker restart
• docker rm
• docker rmi
• docker run
• docker start
• docker stop

Syntax

docker [GLOBAL-PARAMETER ...] SUBCOMMAND [PARAMETER ...]

Subcommands & Parameters

exec

Run a command in a running container.

-i, --interactive

Keep STDIN open even if not attached.

-t, --tty

Allocate a pseudo-TTY.

images

List images.

-f KEY=VALUE, --filter KEY=VALUE

Filter output based on conditions provided.

-q, --quiet

Only show numeric IDs

logs

Fetch the logs of a container.

-f, --follow

Follow log output.

network create

Create a network.

-d bridge|overlay, --driver bridge|overlay

Driver to manage the Network

ps

List containers.

-a, --all

Show all containers (default shows just running).

-f KEY=VALUE, --filter KEY=VALUE

Filter output based on conditions provided.

-l, --latest

Show the latest created container (includes all states).

pull

Pull an image or a repository from a registry.

restart

Restart one or more containers.

rm

Remove one or more containers.

-f, --force

Force the removal of a running container (uses SIGKILL).

-v, --volumes

Remove the volumes associated with the container.

rmi

Remove one or more images.

-f, --force

Force removal of the image.

run

Run a command in a new container.

-d, --detach

Run container in background and print container ID.

-e VAR[=VALUE], --env VAR[=VALUE]

Set environment variables.

--env-file FILE

Read in a file of environment variables.

--name NAME

Assign a name to the container.

--net NAME, --network NAME

Connect a container to a network.

-p HOST_PORT:CONTAINER_PORT,
--publish HOST_PORT:CONTAINER_PORT

Publish a container’s port(s) to the host.

-v [HOST_PATH:]CONTAINER_PATH,
--volume [HOST_PATH:]CONTAINER_PATH

Bind mount a volume.

start

Start one or more stopped containers.

stop

Stop one or more running containers.

Examples

Run MariaDB with Docker

name='mariadb_1'
net='db-net'
storage='/var/lib/docker/volumes'
etc='etc/mysql/conf.d/atlassian.cnf'
var='var/lib/mysql'

docker network create --driver 'bridge' "${net}"

cat >"${HOME}/conf/${name}.env"

MYSQL_ROOT_PASSWORD=**********

for dir in "${storage}/${name}/_data/${etc%/*}" \
           "${storage}/${name}/_data/${var}"
do
  [[ ! -d "${dir}" ]] && mkdir -p "${dir}"
done

cat >"${storage}/${name}/_data/${etc}"

[mysqld]
innodb_log_file_size = 256M
max_allowed_packet = 64M
transaction-isolation = READ-COMMITTED

docker run \
  --detach \
  --env-file "${HOME}/conf/${name}.env" \
  --name "${name}" \
  --network "${net}" \
  --volume "${storage}/${name}/_data/${etc}:/${etc}" \
  --volume "${storage}/${name}/_data/${var}:/${var}" \
  'mariadb:latest'

rm "${HOME}/conf/${name}.env"

Delete all untagged images

docker rmi $(docker images --filter 'dangling=true' --quiet)