- Update the Terraform documentation.
- Update Vouch.
- Cleanup the GitLab CI file.

This is a copy of the web-proxy-docker repo but the base image is now in
the [dockerfiles](https://git.shore.co.il/shore/dockerfiles) repo.

- Use a common pre-commit config snippet for Ansible projects.
- Use a template for pre-commit GitLab CI job.
- Address some issues raised now by pre-commit.