Docker Commands for Beginners and Pros

#docker #devops #aws #containers

docker run IMAGE: Runs a container from an image.
docker run -it IMAGE: Runs a container in interactive mode.
docker run -d IMAGE: Runs a container in detached mode (background).
docker run -it --rm IMAGE: Runs a container in interactive mode and removes it after exiting.
docker run -p HOST_PORT:CONTAINER_PORT IMAGE: Maps a host port to a container port.
docker run -P IMAGE: Maps all container ports to random host ports.
docker run -v HOST_DIR:CONTAINER_DIR IMAGE: Mounts a host directory into a container directory.
docker run -e VARIABLE=VALUE IMAGE: Sets environment variables for the container.
docker run --name CONTAINER_NAME IMAGE: Assigns a name to the container.
docker run --hostname HOSTNAME IMAGE: Sets the hostname of the container.
docker run --workdir WORKDIR IMAGE: Sets the working directory inside the container.
docker run --entrypoint EXECUTABLE IMAGE: Overrides the default entrypoint of the image.
docker run --user USER IMAGE: Runs the container as a specific user.
docker run --restart POLICY IMAGE: Sets a restart policy (no, on-failure, always, unless-stopped) for the container.

docker ps: Lists running containers.
docker ps -a: Lists all containers.
docker stop CONTAINER_NAME: Stops a running container.
docker start CONTAINER_NAME: Starts a stopped container.
docker restart CONTAINER_NAME: Restarts a running container.
docker kill CONTAINER_NAME: Kills a running container.
docker rm CONTAINER_NAME: Removes a stopped container.
docker rm $(docker ps -q): Removes all stopped containers.
docker exec -it CONTAINER_NAME COMMAND: Executes a command inside a running container.
docker attach CONTAINER_NAME: Attaches to a running container's standard input, output, and error streams.
docker logs CONTAINER_NAME: Views the logs of a container.
docker top CONTAINER_NAME: Displays the running processes inside a container.
docker stats CONTAINER_NAME: Displays resource usage statistics for a container.
docker inspect CONTAINER_NAME: Displays detailed information about a container.
docker rename OLD_NAME NEW_NAME: Renames a container.
docker commit CONTAINER_NAME IMAGE_NAME: Creates a new image from a container.
docker update --memory MEM_LIMIT --cpu-shares CPU_SHARE CONTAINER_NAME: Updates container resource limits.

docker images: Lists images.
docker pull IMAGE_NAME[:TAG]: Pulls an image from a registry.
docker push IMAGE_NAME[:TAG]: Pushes an image to a registry.
docker rmi IMAGE_NAME[:TAG]: Removes an image.
docker rmi $(docker images -q): Removes all unused images.
docker image prune: Removes dangling images.
docker build -t IMAGE_NAME -f Dockerfile .: Builds an image from a Dockerfile.
docker tag IMAGE_NAME NEW_IMAGE_NAME[:TAG]: Tags an image with a new name.
docker save IMAGE_NAME -o IMAGE_NAME.tar: Saves an image to a tar file.
docker load -i IMAGE_NAME.tar: Loads an image from a tar file.

docker version: Displays Docker version information.
docker info: Displays system-wide information about Docker.
docker system df: Displays disk usage information.
docker system prune: Removes all unused data (containers, networks, images, and volumes).
docker network ls: Lists networks.
docker network create NETWORK_NAME: Creates a network.
docker network rm NETWORK_NAME: Removes a network.
docker network connect NETWORK_NAME CONTAINER_NAME: Connects a container to a network.
docker network disconnect NETWORK_NAME CONTAINER_NAME: Disconnects a container from a network.
docker cp SOURCE_PATH CONTAINER_NAME:DESTINATION_PATH: Copies files between the host and a container.
docker exec -it CONTAINER_NAME sh: Opens a shell inside a running container.
docker container prune: Removes all stopped containers.
docker volume ls: Lists volumes.
docker volume create VOLUME_NAME: Creates a volume.
docker volume rm VOLUME_NAME: Removes a volume.
docker volume prune: Removes all unused volumes.

Note: Remember to replace placeholders like IMAGE_NAME, CONTAINER_NAME, etc., with actual values.

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