Upgrade & try to set a limited retention period.

services/loki.hcl

@@ -25,7 +25,7 @@ job "loki" {
     task "loki" {
       driver = "docker"
       config {
-        image = "grafana/loki:2.9.4"
+        image = "grafana/loki:2.9.13"
         args = [
           "-config.file",
           "local/loki/local-config.yaml",
@@ -77,6 +77,7 @@ storage_config:
 compactor:
   working_directory: /tmp/loki/boltdb-shipper-compactor
   shared_store: filesystem
+  retention_enabled: true
 limits_config:
   reject_old_samples: true
   reject_old_samples_max_age: 168h
@@ -85,11 +86,12 @@ limits_config:
   ingestion_burst_size_mb: 20
   per_stream_rate_limit: 5MB
   per_stream_rate_limit_burst: 10MB
+  retention_period: 744h
 chunk_store_config:
   max_look_back_period: 0s
 table_manager:
-  retention_deletes_enabled: false
-  retention_period: 0s
+  retention_deletes_enabled: true
+  retention_period: 744h
 EOH
         destination = "local/loki/local-config.yaml"
       }

services/prometheus.hcl

@@ -28,7 +28,7 @@ job "prometheus" {
         args = [
           "--storage.tsdb.path", "/opt/prometheus",
           "--web.listen-address", "0.0.0.0:9090",
-          "--storage.tsdb.retention.time", "90d",
+          "--storage.tsdb.retention.time", "30d",
           "--web.enable-admin-api"
         ]
         force_pull = true