Unified container image

[JohnStrunk]

Describe the feature you'd like to have. Right now, we build several containers that must all be used together:

• Volsync operator
• restic mover
• rclone mover
• rsync/ssh mover
• syncthing mover

All 5 of these final images are based on the same base (ubi9-minimal). We should consider building a single image that contains all the components.

What is the value to the end user? (why is it a priority?)

• Users need to be careful to use the same release across all container images
• Users in offline environments must mirror them all separately
• With a single image, it is more likely that it would already be present on a node

How will we know we have a good solution? (acceptance criteria)

• [ ] All components reside in a single container image
• [ ] Invoking a mover or the operator is just a matter of using a different entrypoint in the container
• [ ] Helm chart should ensure the same image is used for all components

Additional context A quick test of putting everything into a single container indicates we'll end up w/ 1 image of about 718 MB. The bulk of this is due to the rsync/ssh mover (522 MB standalone). The current sum of the separate containers is 1213 MB.