infrastructure/README.md

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# qo.is Infrastructure
[This repository](https://git.qo.is/qo.is/infrastructure) contains the infrastructure configuration and documentation sources.
Check out the current [rendered documentation](https://docs-ops.qo.is).
## Structure
`nixos-configurations`: Main nixos configuration for every host.\
`defaults`: Configuration defaults\
`nixos-modules`: Custom modules (e.g. for vpn and routers)\
`private`: Private configuration values (like users, sops-encrypted secrets and keys)
## Development
This repository requires [nix flakes](https://nixos.wiki/wiki/Flakes)
- `nix flake check`\
Execute the project's checks, which includes building all configurations and packages. See [Tests](./checks/README.md).
- `nix build .#nixosConfigurations.<hostname>.config.system.build.toplevel`\
Build a single host configuration.
- `nix build .#docs`\
Build the documentation website.
- `nix develop`\
Development environment
- `nix fmt`\
Autofix formatting
### Secrets and `private` Submodule
Secret management is done with [nix-sops](https://github.com/Mic92/sops-nix) and a git submodule in `private`.\
Make sure you have the submodule correctly available. To clone with submodules (if you have access):
```bash
git clone --recurse-submodules https://git.qo.is/qo.is/infrastructure.git
# See below for how to commit changes.
```
Secrets are stored in `private/passwords.sops.yaml` (sysadmin passwords),
`private/nixos-modules/shared-secrets/default.sops.yaml` (shared secrets for all hosts) and
`private/nixos-configurations/<hostname>/secrets.sops.yaml` (host specific secrets).
To modify secrets:
```bash
sops $file # To edit a file
sops-rekey # To rekey all secrets, e.g. after a key rollover or new host
```
After changing secrets:
```bash
# Commit changes in subrepo
pushd private
git commit
git push
nix flake prefetch . # Make subrepo available in nix store. Required until nix 2.27.
popd
git add private
nix flake lock --update-input private
```
## Deployment
See [Deployment](deploy/README.md) for details.