/Docker-Commands

Few Useful Docker Commands

Docker-Commands

Few Useful Docker Commands

To build a docker image

  • If dockerfile is present in the same directory:
      docker build -t <name-of-docker-image> .

[NOTE] Don't forget to put dot at the end.

[NOTE] Docker enforce image name to be in lowercase.

  • If dockerfile is present some other directory:
      docker build -t <name-of-docker-image> <path or url>

To pull docker image from docker-hub

Syntax: docker pull 

docker pull centos

To run docker image

Syntax: docker run 

 docker run centos

To run an image on a particular port

Syntax: docker run -p : -e ref-data-app

docker run -p 9080:9080 -e JAVA_OPTS="-Dserver.port=9080" my-docker-image

To remove:

  • all stopped containers

  • all networks not used by at least one container

  • all dangling images

  • all build cache

  docker system prune

To remove an image

  docker rmi <image-name>

To remove a container

  docker rm <container-name>

To remove all images

docker rmi $(docker images -q)

To remove all stopped containers

  docker container prune

To stop a container

 docker stop <container-id>

To save a docker image as a tar file:

docker save -o <save image to path> <image name>

To load the image into docker:

docker load -i <path to image tar file