How do you get into a Docker image?

get_into_docker_image.md

How do you get into a Docker image?

We can do this running our image interactively which creates a temporary container for:

docker run --rm -it \
    --name my_container \
    --volume $PWD:/some_dir_in_container \
    --workdir /some_dir_in_container \
    golang:1.13-buster bash

Description:

• $PWD above indicates your current working directory. You can change it with a custom path as well.
• --rm tells Docker to remove the container created after an exit.
• -it combines --interactive and --tty options in order to keep stdin open even if not attached and allocate a pseudo-TTY.
• --volume optional volume to bind with container.
• --workdir optional way to set a working directory inside the container.

Additionally you can append other options like --user in order to switch to a specific user. E.g --user myuser:mygroup

More details about options available refer to https://docs.docker.com/engine/reference/run/