Before IvyNet shut down, we decided to open-source the code. There are a few DevOps bits, which might be useful for others.
I believe documentation is important, and the README is a good starting point to see what's there. Good documentation doesn't have to be long or very detailed, so you'll find links to the actual code (e.g. Ansible, GitHub Actions, pre-commit, OpenTofu/Terraform, or Packer) plus some extra explanations.
Other things I'd like to point out:
The repository with OpenTofu/Terraform modules includes pre-commit and GitHub Actions (GHA). Each module has tests, documentation, and proper versioning. Some of the test scenarios are quite complex because they require extra components to run. https://github.com/ivy-net/otofu-modules
The OpenTofu infrastructure definition is separated from the modules. This separation makes it easy to upgrade environments independently. Each can be upgraded separately, so you can test things in staging or dev before touching production. https://github.com/ivy-net/infra
The applications are written in Rust, and the GitHub Actions and pre-commit setup could be a good starting point for Rust project automation.
