feat(prometheus): create a dedicated prometheus package (#7397)

conf/example.yaml

@@ -72,7 +72,6 @@ sqlstore:
     # The path to the SQLite database file.
     path: /var/lib/signoz/signoz.db
 
-
 ##################### APIServer #####################
 apiserver:
   timeout:
@@ -91,20 +90,29 @@ apiserver:
       - /api/v1/version
       - /
 
-
 ##################### TelemetryStore #####################
 telemetrystore:
-  # Specifies the telemetrystore provider to use.
-  provider: clickhouse
   # Maximum number of idle connections in the connection pool.
   max_idle_conns: 50
   # Maximum number of open connections to the database.
   max_open_conns: 100
   # Maximum time to wait for a connection to be established.
   dial_timeout: 5s
+  # Specifies the telemetrystore provider to use.
+  provider: clickhouse
   clickhouse:
-    # The DSN to use for ClickHouse.
-    dsn: http://localhost:9000
+    # The DSN to use for clickhouse.
+    dsn: tcp://localhost:9000
+
+##################### Prometheus #####################
+prometheus:
+  active_query_tracker:
+    # Whether to enable the active query tracker.
+    enabled: true
+    # The path to use for the active query tracker.
+    path: ""
+    # The maximum number of concurrent queries.
+    max_concurrent: 20
 
 ##################### Alertmanager #####################
 alertmanager:
@@ -117,7 +125,7 @@ alertmanager:
     # The poll interval for periodically syncing the alertmanager with the config in the store.
     poll_interval: 1m
     # The URL under which Alertmanager is externally reachable (for example, if Alertmanager is served via a reverse proxy). Used for generating relative and absolute links back to Alertmanager itself.
-    external_url: http://localhost:9093
+    external_url: http://localhost:8080
     # The global configuration for the alertmanager. All the exahustive fields can be found in the upstream: https://github.com/prometheus/alertmanager/blob/efa05feffd644ba4accb526e98a8c6545d26a783/config/config.go#L833
     global:
       # ResolveTimeout is the time after which an alert is declared resolved if it has not been updated.