## Description
Addresses some of the latest issues with the Dockerfile
* Go back to Alpine since it is smaller image. `ash` is available as shell so it is ok
* Add `corso` as UID and GUID 1001 for a predictable default user
* Add `/app/corso` as home directory for the `corso` which should address some of the issues around predictably mapping an external folder.
* Add Kopia config that mirrors the Kopia container from https://github.com/kopia/kopia/blob/master/tools/docker/Dockerfile
<!-- Insert PR description-->
## Type of change
<!--- Please check the type of change your PR introduces: --->
- [x] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [ ] 🐹 Trivial/Minor
## Issue(s)
* fixes#968
## Test Plan
<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E
## Description
Uses alpine in the base docker images, to gain access
to a shell within corso containers.
## Type of change
- [x] 🌻 Feature
## Issue(s)
* #573
## Test Plan
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E
Introduces the production of docker containers as a CI step.
Currently only provides a rolling-release version that builds
on every push to main. Images are deployed to ghcr.io.
The PR includes two variations on building the images. We'll
likely only want to stick with one or the other.
Adds a Dockerfile under the docker to package the corso binary.
This currently requires the user to build the corso binary (for linux/amd64) in the build image
prior to building the docker image. Follow up PRs will introduce a Makefile.
Also moves the build image to the build folder and adds a couple of README.md files with
instructions.
Fixes#218
