fix: add all required replica=0 settings for Loki v6 singleBinary

ansible/roles/observability/templates/loki-values.yaml.j2

@@ -6,6 +6,8 @@ loki:
     replication_factor: 1
   limits_config:
     retention_period: 168h
+    allow_structured_metadata: true
+    volume_enabled: true
   schemaConfig:
     configs:
       - from: "2024-01-01"
@@ -17,6 +19,10 @@ loki:
           period: 24h
   storage:
     type: filesystem
+  pattern_ingester:
+    enabled: true
+  ruler:
+    enable_api: true
 
 backend:
   replicas: 0
@@ -27,6 +33,33 @@ read:
 write:
   replicas: 0
 
+ingester:
+  replicas: 0
+
+querier:
+  replicas: 0
+
+queryFrontend:
+  replicas: 0
+
+queryScheduler:
+  replicas: 0
+
+distributor:
+  replicas: 0
+
+compactor:
+  replicas: 0
+
+indexGateway:
+  replicas: 0
+
+bloomCompactor:
+  replicas: 0
+
+bloomGateway:
+  replicas: 0
+
 gateway:
   enabled: false
 
@@ -43,8 +76,10 @@ singleBinary:
     enabled: true
     storageClass: {{ loki_storage_class }}
     size: {{ loki_storage_size }}
+
 test:
   enabled: false
+
 monitoring:
   selfMonitoring:
     enabled: false