How do I copy files from host to Docker container

Question

I am stuck at this step. I have been trying to build a backup and restore solution for the Docker containers that we work with.

I have created a docker base image, ubuntu:base, and don't want  to rebuild it each time with a Docker file to add files to it.

I am trying to create a script which runs from the host machine and creates a new container using the ubuntu:base Docker image and then copies files into that container.

How do I copy files from the host to the container?

Can anyone help me with this?

Thanks

Answer 1

Here is what you can use to copy a file from host to  container. The cp command can be used to copy files. One specific file can be copied like:

docker cp foo.txt mycontainer:/foo.txt
docker cp mycontainer:/foo.txt foo.txt

Multiple files contained by the folder src can be copied into the target folder using:

docker cp src/. mycontainer:/target
docker cp mycontainer:/src/. target

Here is what you can use for your reference: Docker CLI docs for cp