[Bug] CI: cachix setup is missing - Nix package and environment: All jobs have failed

[neteler]

Describe the bug

The "Nix package and environment workflow run" is failing with "Nix package and environment: All jobs have failed".

The temporarily created cachix setup (https://app.cachix.org/cache/osgeo-grass/settings/general) is no longer available as it was on my personal plan and close to exceed the free tier.
The original (temporary) setup was discussed in #3906.

In absence of a valid cachix token the CI currently fails with:

Run cachix/cachix-action@ad2ddac53f961de1989924296a1f236fcfbaa4fc
Cachix: installing
Cachix: checking version
Cachix: using cache osgeo-grass
  /home/runner/.nix-profile/bin/cachix use osgeo-grass
  
  Binary cache osgeo-grass doesn't exist or it's private and you need a token: Start by visiting https://app.cachix.org/ and create a personal/cache auth token.
  
  To configure the token:
  
  a) Via environment variable: 
  
  $ export CACHIX_AUTH_TOKEN=<token...>
  
  b) Via configuration file:
  
  /home/runner/work/_actions/cachix/cachix-action/ad2ddac53f961de1989924296a1f236fcfbaa4fc/dist/main/index.js:1702
                  error = new Error(`The process '${this.toolPath}' failed with exit code ${this.processExitCode}`);
                          ^
  
  Error: The process '/home/runner/.nix-profile/bin/cachix' failed with exit code 1
      at ExecState._setResult (/home/runner/work/_actions/cachix/cachix-action/ad2ddac53f961de1989924296a1f236fcfbaa4fc/dist/main/index.js:1702:25)
      at ExecState.CheckComplete (/home/runner/work/_actions/cachix/cachix-action/ad2ddac53f961de1989924296a1f236fcfbaa4fc/dist/main/index.js:1685:18)
      at ChildProcess.<anonymous> (/home/runner/work/_actions/cachix/cachix-action/ad2ddac53f961de1989924296a1f236fcfbaa4fc/dist/main/index.js:1579:27)
      at ChildProcess.emit (node:events:519:28)
      at maybeClose (node:internal/child_process:1105:16)
      at ChildProcess._handle.onexit (node:internal/child_process:305:5)
  
  Node.js v20.18.0
  $ cachix authtoken <token...>

Next steps

We need to setup cachix at project (or OSGeo org?) repository level and update https://github.com/OSGeo/grass/blob/main/.github/workflows/test-nix.yml accordingly.

[neteler]

@imincik @wenzeslaus @echoix others: any opinion here?

[imincik]

Looks to me that CACHIX_AUTH_TOKEN has expired . Free plan has the limit on amount of cached data and once this is reached it will start removing oldest or least used files. So this should not break the service.

[imincik]

Sorry, just reading #4967 (comment) which looks like my comment above is not right.

[neteler]

No, the (temporary) cachix setup no longer exists: see #4967 (comment). The original (temporary) setup was discussed in #3906.

[imincik]

@neteler did yoy receive something like this ?

"""
You've reached your storage limit of 5.00 GB.

You have two options:

a) Do nothing and least recently downloaded cache entries will be deleted to maintain your current storage limit.
See https://app.cachix.org/garbage-collection for details.

b) Upgrade your plan at https://app.cachix.org/billing
"""

If yes, I would choose option 'a'.

[neteler]

I'd like to see this set up to be independent of my personal account.

[imincik]

Please ping me if you need some help with migration to new binary cache setup. I'm happy to help.