cvcp - container volume cp

A python script to simplify transferring data across container volumes.

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Using cvcp

Download the file cvcp from the repository and place it inside your preferred path. I prefer ~/bin.

Then, to use cvcp:

cvcp SOURCE DESTINATION

Path inside a container volume should be written as <volume_name>:<path_inside_volume>.

Either SOURCE or DESTINATION can be a local path or a path inside a container volume. Note however that both SOURCE and DESTINATION cannot be local paths.

The following command line options are available to customise the behaviour:

• --docker and --podman

  • The container engine to use.
  • The default is docker.

• --rootless

  • Use the container engine without root.

• --image

  • The container image to be used.
  • Note that the image needs to have rsync installed.

• --rsync-opts

  • Options to pass to rsync.
  • Note that, it would be best to pass all the options as a quoted string with a space at the beginning. For example, ' --verbose'.
  • Using this option would clear the default rsync options, so make sure to pass all the options required.
  • The default options are ' -a --progress'.

• --no-exec

  • Print the command and exit.

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Using a custom image

To use a custom image with cvcp, use the --image argument.

To permanently change the default image that cvcp uses, change this line in the cvcp script file:

RSYNC_IMAGE = "image_name"

Whatever image you use, it needs to have rsync installed. You can use the Dockerfile inside the same repository as a base to build the image.

# docker
sudo docker build -t localhost/rsync .

# podman
podman build -t localhost/rsync .