Remove prometheus hydra rules

nixos/roles/monitoring/default.nix

@@ -17,7 +17,6 @@ in
     ./grafana.nix
     ./prometheus.nix
     ./probes.nix
-    ./nixpkgs.nix
   ];
 
   services = {

nixos/roles/monitoring/nixpkgs.nix

@@ -1,28 +0,0 @@
-{ pkgs, ... }:
-let
-  watchNixpkgsPackage = name: branch: path:
-    let job_name = "nixpkgs ${name} on ${branch}";
-    in
-    {
-      inherit job_name;
-      metrics_path = "/job/${path}/prometheus";
-      scheme = "https";
-      scrape_interval = "1h";
-      scrape_timeout = "120s";
-      static_configs = [{
-        labels = {
-          name = job_name;
-          packageName = name;
-          url = "https://hydra.nixos.org/job/${path}";
-          alert_type = "nixpkgs";
-        };
-        targets = [ "hydra.nixos.org" ];
-      }];
-    };
-  watchHaskellUnstable = name:
-    watchNixpkgsPackage name "haskell-updates" "nixpkgs/haskell-updates/haskellPackages.${name}.x86_64-linux";
-  watchedHaskellUpdatesPkgs = builtins.attrNames (pkgs.myHaskellPackages);
-in
-{
-  services.prometheus.scrapeConfigs = map watchHaskellUnstable watchedHaskellUpdatesPkgs;
-}

nixos/roles/monitoring/rules.yml

@@ -8,15 +8,8 @@ groups:
              severity: critical
           annotations:
              description: '{{ $labels.instance }} probe {{ $labels.job}} failed.'
-        - alert: nixpkgs
-          expr: hydra_job_failed == 1
-          for: 2h
-          labels:
-             severity: warning
-          annotations:
-             description: 'hydra build {{ $labels.packageName }} on nixpkgs branch {{ $labels.jobset }} failed.'
         - alert: node_down
-          expr: 'up{flaky!="true",instance!="hydra.nixos.org:443"} == 0'
+          expr: 'up{flaky!="true"} == 0'
           for: 5m
           labels:
              severity: critical