feat: monitoring

configs/monitoring/loki.nix

@@ -0,0 +1,60 @@
+{
+  auth_enabled = false;
+  server = {
+    http_listen_port = 3100;
+    grpc_listen_port = 9096;
+  };
+  ingester = {
+    wal = {
+      enabled = true;
+      dir = "/tmp/wal";
+    };
+    lifecycler = {
+      address = "127.0.0.1";
+      ring = {
+        kvstore.store = "inmemory";
+        replication_factor = 1;
+      };
+      final_sleep = "0s";
+    };
+    chunk_idle_period = "1h";       # Any chunk not receiving new logs in this time will be flushed
+    max_chunk_age = "1h";           # All chunks will be flushed when they hit this age, default is 1h
+    chunk_target_size = 1048576;    # Loki will attempt to build chunks up to 1.5MB, flushing first if chunk_idle_period or max_chunk_age is reached first
+    chunk_retain_period = "30s";    # Must be greater than index read cache TTL if using an index cache (Default index read cache TTL is 5m)
+    max_transfer_retries = 0;       # Chunk transfers disabled
+  };
+  schema_config.configs = [
+    {
+      from = "2020-10-24";
+      store = "boltdb-shipper";
+      object_store = "filesystem";
+      schema = "v11";
+      index = {
+        prefix = "index_";
+        period = "24h";
+      };
+    }
+  ];
+  storage_config = {
+    boltdb_shipper = {
+      active_index_directory = "/tmp/loki/boltdb-shipper-active";
+      cache_location = "/tmp/loki/boltdb-shipper-cache";
+      cache_ttl = "24h";         # Can be increased for faster performance over longer query periods, uses more disk space
+      shared_store = "filesystem";
+    };
+    filesystem.directory = "/tmp/loki/chunks";
+  };
+  compactor = {
+    working_directory = "/tmp/loki/boltdb-shipper-compactor";
+    shared_store = "filesystem";
+  };
+  limits_config = {
+    reject_old_samples = true;
+    reject_old_samples_max_age = "168h";
+  };
+  chunk_store_config.max_look_back_period = "0s";
+  table_manager = {
+    retention_deletes_enabled = false;
+    retention_period = "0s";
+  };
+}