Use tsdb for loki, set retention for prometheus

lotus-land-story/loki.yml

@@ -55,6 +55,16 @@
                 index:
                   prefix: index_
                   period: 24h
+
+              # https://grafana.com/docs/loki/latest/operations/storage/tsdb/
+              - from: 2023-07-17
+                index:
+                  period: 24h
+                  prefix: index_
+                object_store: filesystem
+                schema: v12
+                store: tsdb
+
           storage_config:
             filesystem:
               directory: /data

lotus-land-story/prometheus.yml

@@ -58,6 +58,10 @@
         # restart: true
         name: prometheus
         image: prom/prometheus:v2.43.0
+        command:
+          - --config.file=/etc/prometheus/prometheus.yml
+          - --storage.tsdb.retention.size=5GB
+        restart: true
         user: "{{ prometheus_user.uid }}"
         groups: "{{ prometheus_user.group }}"
         volumes: