Now if you run any container with this new, custom Docker image, it should have Vim editor installed already. Run a command like this to create your custom Docker image: docker build -t new_docker_image_name PATH_to_Dockerfile You have to create this custom Docker image from the above mentioned Dockerfile. Now open this Dockerfile for editing in an editor and add the following lines to it and save it: FROM alpine:latestīasically, you are instructing Docker to pull the latest Alpine docker image and then run the apk packgae manager to update the cache and install Vim. If not, let me quickly remind you with a simple example of Alpine Linux.Ĭreate a new file named Dockerfile: touch Dockerfile I hope you know how to create custom Docker image with Dockerfile. If you want that all the containers that are created using the given Docker image also have Vim installed by default, you need to add the installation commands in the Dockerfile. If you run a new container with the same Docker image, the Vim command you had installed will not be present in this new container. But there is a big problem with this approach. It should allow you to run and use Vim in the currently running container. To install it on CentOS or Red Hat, use the Yum command: yum install vimĪnd if it's Alpine Linux, use the apk command: apk update To install Vim on Ubuntu or Debian, use the apt command: apt update Verify which Linux distribution it uses: cat /etc/os-releaseĪnd then use the package manager of the distribution to install it. It's almost certain that the Linux distribution you are running in a Docker container doesn't have Vim or any other text editor installed by default.Ī quick way to install the text editor in your Docker container would be to enter the running container: docker exec -it container_name_or_ID sh

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