viola: upstream

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

viola/services/tempo.nix

@@ -0,0 +1,90 @@
+_: {
+  services = {
+    tempo = {
+      enable = true;
+
+      settings = {
+        server = {
+          http_listen_port = 3200;
+          grpc_listen_port = 9096;
+        };
+
+        distributor = {
+          receivers = {
+            otlp = {
+              protocols = {
+                grpc = {
+                  endpoint = "0.0.0.0:4317";
+                };
+
+                http = {
+                  endpoint = "0.0.0.0:4318";
+                };
+              };
+            };
+          };
+        };
+
+        ingester = {
+          lifecycler = {
+            ring = {
+              replication_factor = 1;
+            };
+          };
+        };
+
+        storage = {
+          trace = {
+            backend = "local";
+            local = {
+              path = "/var/lib/tempo/blocks";
+            };
+
+            block = {
+              version = "vParquet4";
+            };
+
+            wal = {
+              path = "/var/lib/tempo/wal";
+            };
+          };
+        };
+
+        compactor = {
+          compaction = {
+            block_retention = "720h";
+          };
+        };
+
+        metrics_generator = {
+          registry = {
+            external_labels = {
+              source = "tempo";
+            };
+          };
+
+          storage = {
+            path = "/var/lib/tempo/generator";
+            remote_write = [
+              {
+                url = "http://127.0.0.1:9009/api/v1/push";
+              }
+            ];
+          };
+        };
+
+        overrides = {
+          defaults = {
+            metrics_generator = {
+              processors = [
+                "service-graphs"
+                "span-metrics"
+                "local-blocks"
+              ];
+            };
+          };
+        };
+      };
+    };
+  };
+}