nixos/tests: add step-ca test

[mohe2015]

Motivation for this change

This is more or less what I check on updates.

Things done

Probably IFD is not allowed but we will see. If its not allowed the only way is to put the files in-repo I suppose.

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 21.11 Release Notes (or backporting 21.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[mohe2015]

@ofborg build step-ca.passthru.tests

[mohe2015]

@ofborg build step-ca.passthru.tests

[mohe2015]

Would it be possible to get this merged before branchoff so it's in the next release?

[mohe2015]

Any chance to get this merged? Should be fairly uncontroversial.

[m1cr0man]

The test looks good to me. I'm not all too familiar with step-ca but this seems fine. Nice to have the tests in case I break something in acme that affects it ;)

[ju1m]

Looks like this is the only use of passthru.tests in nixos/modules/, is it a deliberate choice or a mistake? Isn't the passthru.tests in pkgs/tools/security/step-ca/default.nix enough? Thanks in advance for your time.