Docker Commands

Docker Hub Registry

• sudo docker login - To login into default docker registry https://hub.docker.com/
• sudo docker login registryURL - To login into private registry
• sudo docker push repoName/imageName:tag - Push image to registry in given repoName=respository name, as imageName with tag=ex. 1.0.0
• sudo docker pull repoName/imageName:tag - Pulgl docker image
• sudo docker tag existingRepoName/imageName:tag newRepoName/imageName:tag - Create new tagged image

Interacting with Container

• sudo docker run -it imageName – -i means interactive, -t means provide terminal
• sudo docker run -d imageName - -d means run in background mode
• sudo docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-
• sudo docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH - copy from host to container, viceversa possible
• sudo docker exec containerName/ID command - run a command in existing container, giving output on localhost terminal
• sudo docker exec -it containerName/ID /bin/bash - use to go inside container
• sudo docker ps – list running containers
• sudo docker ps -a – list all containers
• sudo docker start containerName/ID – start the stopped container
• sudo docker stop containerName/ID – stop the running container
• sudo docker rm containerName/ID – remove the container process
• sudo docker rm $(sudo docker ps -aq) – remove all exited container process
• sudo docker inspect containerName/ID – show information about container in json format
• sudo docker logs containerName/ID – Fetch the logs from container, argument -f will show live logs
• sudo docker stats containerName/ID – show live usage of resources by container (can be run with multiple container in the same command line)
• sudo docker top containerName/ID – show running process in container

Docker Image Management Commands

• sudo docker build -t repoName/imageName . – Create docker image
• sudo docker images – list the image
• sudo docker history imageName – show the image history
• sudo docker inspect imageName – show docker image information in json format
• sudo docker tag imageName1 imageName2 – tag the image
• sudo docker rmi imageName – remove the image
• sudo docker pull repoName/imageName – pull the docker image from registry
• sudo docker push repoName/imagename – push the docker image to registry
• sudo docker save imageName -o imageName.tar.gz – save the image as tar ball
• sudo docker load --input tarFileName.tar.gz – load the image from tar ball as docker image

Other Commands

• sudo docker info – display the system-wide information about docker