Important Docker Commands
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docker version
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Shows the Docker version information
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docker info
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Display system-wide information
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docker help <command>
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Shows help for a specific command
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docker images
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List images
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docker pull <image>
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Pull an image or a repository from a registry
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docker rmi <image>
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Remove one or more images
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docker ps
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Lists running containers
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docker ps -a
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List all containers (both running and stopped)
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docker run <image>
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Run a command in a new container
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docker start
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Start one or more stopped containers
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docker restart
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Restart one or more containers
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docker stop <container>
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Stop one or more running containers
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docker rm <container>
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Remove one or more containers
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docker rename
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Rename a container
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FROM
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Set the Base Image for subsequent instructions
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RUN
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Execute any commands in a new layer on top of the current image and commit the results
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CMD
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Provide defaults for an executing container
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EXPOSE
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nform Docker that the container listens on the specified network ports at runtime
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ENV
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Set environment variables
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ADD
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Copy new files, directories or remote file URLs from <src> and add them to the filesystem of the image at the path <dest>
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COPY
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Copy new files or directories from <src> and add them to the filesystem of the container at the path <dest>
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ENTRYPOINT
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Allows you to configure a container that will run as an executable
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VOLUME
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Create a mount point with the specified name and mark it as holding externally mounted volumes from native host or other containers
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USER
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Set the user name or UID to use when running the image and for any RUN, CMD and ENTRYPOINT instructions that follow it in the Dockerfile
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WORKDIR
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Sets the working directory for any RUN, CMD, ENTRYPOINT, COPY and ADD instructions that follow it in the Dockerfile
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docker build -t <tag>
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Build an image from a Dockerfile in the current directory
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docker tag <image> <tag>
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Tag an image to a name (local or registry)
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