test deployments using data obtained through the data model in VMs.
caveats:
- SSH currently has a `run` abstraction that the nixops4 model still lacks
- the deployed (trivial) configuration on activation has not facilitated new ssh connections (for subsequent) updates, i.e. a more sophisticated configuration would be needed for real-life usage.
Reviewed-on: Fediversity/Fediversity#505
closes#93.
note that this includes classes:
- `nixos`
- `nixosTest`
- `nixops4Resource`
- `nixops4Deployment`
.. and my (made-up, as per the [docs](https://ryantm.github.io/nixpkgs/module-system/module-system/#module-system-lib-evalModules-param-class)):
- `nix-unit`
- `package`
.. while i did not manage to cover:
- service tests, given `pkgs.nixosTest` seemed to not actually like `_class = "nixosTest"` (?!)
... nor #93's mentioned destructured arguments for that matter, as per Fediversity/Fediversity#93 (comment) - let me know if that is still desired as well.
Reviewed-on: Fediversity/Fediversity#398
Reviewed-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Kiara Grouwstra <kiara@procolix.eu>
Co-committed-by: Kiara Grouwstra <kiara@procolix.eu>
Closes Fediversity/Fediversity#276
This PR adds a CLI deployment test. It builds on top of Fediversity/Fediversity#323. This test features a deployer node and four target nodes. The deployer node runs `nixops4 apply` on a deployment built with our actual code in `deployment/default.nix`, which pushes onto the four target machines combinations of Garage/Mastodon/Peertube/Pixelfed depending on a JSON payload. We check that the expected services are indeed deployed on the machines. Getting there involved reworking the existing basic test to extract common patterns, and adding support for ACME certificates negotiation inside the NixOS test.
What works:
- deployer successfully runs `nixops4 apply` with various payloads
- target machines indeed get the right services pushed onto them and removed
- services on target machines successfully negotiate ACME certificates
What does not work: the services themselves depend a lot on DNS and that is not taken care of at all, so they are probably very broken. Still, this is a good milestone.
Test it yourself by running `nix build .#checks.x86_64-linux.deployment-basic -vL` and `nix build .#checks.x86_64-linux.deployment-cli -vL`. On the very beefy machine that I am using, the basic test runs in ~4 minutes and the CLI test in ~17 minutes. We know from Fediversity/Fediversity#323 that the basic test runs in ~12 minutes on the CI runner, so maybe about an hour for the CLI test?
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Reviewed-on: Fediversity/Fediversity#329
Reviewed-by: kiara Grouwstra <kiara@procolix.eu>
Reviewed-by: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-authored-by: Nicolas “Niols” Jeannerod <nicolas.jeannerod@moduscreate.com>
Co-committed-by: Nicolas “Niols” Jeannerod <nicolas.jeannerod@moduscreate.com>
