Merge branch '145-grafana-loki-no-private-ip-address-found' into 'master'

add env check for Pod IP

Closes big-bang/product/packages/loki#145

See merge request !4537

chart/templates/loki/values.yaml

@@ -56,8 +56,10 @@ promtail:
   enabled: true
 {{- end }}
 
-
 loki:
+  extraMemberlistConfig:
+    bind_addr:
+      - ${MY_POD_IP}
   storage:
     {{- if (eq .Values.loki.strategy "monolith") }}
     type: "filesystem"
@@ -88,21 +90,62 @@ loki:
     {{ include "istioAnnotation" . }}
   {{- end }}
 
+{{- if (eq .Values.loki.strategy "monolith") }}
+deploymentMode: SingleBinary
+singleBinary:
+  replicas: 1
+  extraArgs:
+    - -config.expand-env=true
+  extraEnv:
+    - name: MY_POD_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.podIP
+{{- end }}
+
 {{- if (eq .Values.loki.strategy "scalable") }}
 deploymentMode: SimpleScalable
 singleBinary:
   replicas: 0
 read:
   replicas: 3
+  extraArgs:
+    - -config.expand-env=true
+  extraEnv:
+    - name: MY_POD_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.podIP
 write:
   replicas: 3
+  extraArgs:
+    - -config.expand-env=true
+  extraEnv:
+    - name: MY_POD_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.podIP
 backend:
   replicas: 3
+  extraArgs:
+    - -config.expand-env=true
+  extraEnv:
+    - name: MY_POD_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.podIP
 gateway:
   enabled: true
   service:
     labels:
       prometheus.io/service-monitor: "false"
+  extraArgs:
+    - -config.expand-env=true
+  extraEnv:
+    - name: MY_POD_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.podIP
 {{- end }}
 
 {{- with .Values.loki.objectStorage }}
@@ -118,4 +161,4 @@ minio:
 deploymentMode: Distributed
 {{- end -}}
 
-{{- end -}}
\ No newline at end of file
+{{- end -}}