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docker build -t <image_name>:<tag> <path_to_Dockerfile>
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Build an image from a Dockerfile
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FROM <image_name>:<tag>
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Includes the OS & sometimes the runtime environment
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WORKDIR /app
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Specifies which directory to work in
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COPY . .
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Copying everythin in the root directory into app directory
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RUN npm install
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Installing dependencies
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EXPORT port_number
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Specifies port number
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CMD ["command"]
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Command runs in the container not image
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docker images
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List all images
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docker image rm <image_name_or_ID>
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Remove one or more images
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docker image rm <imag_name> -f
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Forcefully delete an image even if it is used
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docker run --name <name> -p local_port:container_port<image_name>:<tag>
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Run a command in a new container with name and specifiying the local port
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docker ps
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List running containers
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docker ps -a
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List all containers
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docker stop <container_name_or_ID>
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Stop one or more running containers
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docker start
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docker start <container_name_or_ID>
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docker container rm <container_name>
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Deleting containers
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docker rm <container_name_or_ID>
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Remove one or more containers
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docker exec -it <container_name_or_ID> <command>
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Run a command in a running container
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docker logs <container_name_or_ID>
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Fetch the logs of a container
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docker-compose up
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Start services defined in a docker-compose.yml file
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docker-compose down --rmi all -v
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Stop and remove containers, networks, images, and volumes
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docker pull <image_name>:<tag>
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Pull an image or a repository from a registry
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docker tag <source_image> <target_image>
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Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
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docker push <image_name>:<tag>
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Push an image or a repository to a registry
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docker inspect <container_or_image_name_or_ID>
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Display detailed information on one or more containers or images
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docker system prune -a
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Delete everything
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