Overview

| | | |:—|:—| | Managing Images | | | docker build | create an image from a Dockerfile | | Managing Containers | | | docker run <image> | create + start| | docker create <image> | create the container, without starting| | docker start <container> | create + start the container| | docker stop <container> | SIGTERM | | docker kill <container> | SIGKILL | | docker restart <container> | stop + start | | docker pause / unpause <container> | suspend / resume the containter | | docker rm [-f] <container> | destroy te container | | Inspecting containers | | | docker ps [-a] | list the containers | | docker log <container> | show the container output | | docker top <container> | top the container processes | | docker diff <container> | show all modified files in container | | docker inspect <container> | show low-level infos | | Interacting with containers | | | docker cp <src> <dst> | copy the file from/into container | | docker attach <container> | attach io to a running container | | docker export <container> | export the content of the container to tar archive | | docker exec <container> <args> | run a command in the container | | docker wait <container> | wait until the container terminates and return the exit code | | docker commit <container> <image> | take a snapshot of the container | I | Imagae management | | | docker images | list of all local images | | Dockerfile | | | FROM <IMAGE>/SCRATCH | base image | | MAINTAINER <EMAIL> | mainainter info | | USER <NAME> | default username | | WORKDIR <PATH> | default working directory | | CMD <ARGS> | set the default command | | ENV <NAME> <VALUE> | set an environemtn variable| | COPY <PATH> <DST> | copy <PATH> from the context into the container <DST> | | ADD <SRC> <DST> | <SRC> could be URLs | | RUN <ARGS> | run the command in the container |

Create an image <a name=”build’ href=’#overview’></a>

Create an image with tag name

docker build . -t "app/container_name"

Run a new Container

docker run by default has stdout stream connected. -i make the container wait for interaction from host, and -t allocates pseudo-tty driver for the host.

Start a new container from an Image

docker run --name my_container image

Mapping a port

docker run -P <HOSTPORT>:<CONTAINERPORT> image

Detach the io (run in background)

docker run -d image

Assign a hostname

docker run --hostname _hostname image

Create a container

Creat a container from an image, with a name

docker create --name my_container image:tag

List of containers

List of all (running + stopped) containers

docker ps -a

Filter the containter

docker ps -f"name=something"

Delete a container

docker rm <CONTAINER> # -f force quit

Delete all stopped container

docker container prune

Start a container

docker start <CONTAINER>

Stop a container

docker stop <CONTAINER>

Manage Images

Start a new container from an Image