viola: upstream

Signed-off-by: s0me1newithhand7s <git+me@hand7s.org>

viola/services/mimir.nix

@@ -0,0 +1,124 @@
+{
+  lib,
+  pkgs,
+  ...
+}: {
+  services = {
+    mimir = {
+      enable = true;
+
+      configuration = {
+        multitenancy_enabled = false;
+
+        target = "all";
+        server = {
+          http_listen_port = 9009;
+        };
+
+        common = {
+          storage = {
+            backend = "filesystem";
+            filesystem = {
+              dir = "/var/lib/mimir";
+            };
+          };
+        };
+
+        blocks_storage = {
+          backend = "filesystem";
+          filesystem = {
+            dir = "/var/lib/mimir/blocks";
+          };
+
+          tsdb = {
+            dir = "/var/lib/mimir/tsdb";
+          };
+        };
+
+        compactor = {
+          data_dir = "/var/lib/mimir/compactor";
+        };
+
+        ingester = {
+          ring = {
+            instance_addr = "127.0.0.1";
+            replication_factor = 1;
+            kvstore = {
+              store = "memberlist";
+            };
+          };
+        };
+
+        store_gateway = {
+          sharding_ring = {
+            replication_factor = 1;
+          };
+        };
+
+        ruler = {
+          alertmanager_url = "http://127.0.0.1:9093";
+        };
+
+        ruler_storage = {
+          backend = "local";
+          local = {
+            directory = "${pkgs.writeTextDir "anonymous/homelab.yml" (lib.generators.toYAML {} {
+              groups = [
+                {
+                  name = "homelab";
+                  interval = "1m";
+                  rules = [
+                    {
+                      alert = "HighDiskUsage";
+                      expr = ''
+                        (1 - node_btrfs_device_unused_bytes / node_btrfs_device_size_bytes) * 100 > 85
+                      '';
+                      for = "5m";
+                      labels = {severity = "warning";};
+                      annotations = {
+                        summary = "High disk usage on {{ $labels.instance }}";
+                      };
+                    }
+                    {
+                      alert = "HighMemoryUsage";
+                      expr = ''
+                        (1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 > 90
+                      '';
+                      for = "5m";
+                      labels = {severity = "warning";};
+                      annotations = {
+                        summary = "High memory usage on {{ $labels.instance }}";
+                      };
+                    }
+                    {
+                      alert = "HighCpuUsage";
+                      expr = ''
+                        100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80
+                      '';
+                      for = "5m";
+                      labels = {severity = "warning";};
+                      annotations = {
+                        summary = "High CPU usage on {{ $labels.instance }}";
+                      };
+                    }
+                    {
+                      alert = "ServiceDown";
+                      expr = ''
+                        node_systemd_unit_state{state="active"} == 0
+                      '';
+                      for = "2m";
+                      labels = {severity = "critical";};
+                      annotations = {
+                        summary = "Service {{ $labels.name }} is down on {{ $labels.instance }}";
+                      };
+                    }
+                  ];
+                }
+              ];
+            })}";
+          };
+        };
+      };
+    };
+  };
+}