Merge branch '790-increase-loki-retention-time' into 'master'

Resolve "Increase loki retention time"

Closes #780 and #790

See merge request openappstack/openappstack!407

ansible/roles/apps/templates/settings/loki-stack.yaml

 ---
+# https://github.com/grafana/helm-charts/blob/main/charts/loki-stack/values.yaml
 loki:
+  # https://github.com/grafana/helm-charts/blob/main/charts/loki/values.yaml
   enabled: true
   resources:
     limits:
@@ -8,8 +10,47 @@ loki:
     requests:
       cpu: 200m
       memory: 90Mi
+  persistence:
+    enabled: true
+    accessModes:
+    - ReadWriteOnce
+    size: 10Gi
+    annotations: {}
+    # existingClaim:
+  config:
+    # https://github.com/grafana/loki/blob/main/cmd/loki/loki-local-config.yaml
+    # https://grafana.com/docs/loki/latest/operations/storage/retention
+    schema_config:
+      configs:
+      - from: 2021-05-31
+        store: boltdb-shipper
+        object_store: filesystem
+        schema: v11
+        index:
+          prefix: index_
+          period: 24h
+    storage_config:
+      boltdb_shipper:
+        active_index_directory: /data/loki/boltdb-shipper-active
+        cache_location: /data/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: /data/loki/chunks
+    compactor:
+      working_directory: /data/loki/boltdb-shipper-compactor
+      shared_store: filesystem
+    limits_config:
+      reject_old_samples: true
+      reject_old_samples_max_age: 168h  # 7 days
+    chunk_store_config:
+      max_look_back_period: 672h # 28 days
+    table_manager:
+      retention_deletes_enabled: true
+      retention_period: 672h  # 28 days
 
 promtail:
+  # https://github.com/grafana/helm-charts/blob/main/charts/promtail/values.yaml
   enabled: true
   initContainer:
     enabled: true

ansible/roles/configure/files/oas-version-info.sh

@@ -3,7 +3,7 @@
 cat /var/lib/OpenAppStack/version.txt
 kubectl version
 kubectl krew version
-docker version | grep -B2 Version
+kubectl krew list
 helm version
 helm plugin list
 k3s --version

flux/oas/loki-stack_hr.yaml

@@ -9,9 +9,10 @@ metadata:
 spec:
   releaseName: loki-stack
   chart:
+    # https://github.com/grafana/helm-charts/tree/main/charts/loki-stack
     repository: https://grafana.github.io/helm-charts
     name: loki-stack
-    version: 2.3.1
+    version: 2.4.1
   valuesFrom:
   - secretKeyRef:
       name: loki-stack-settings