Added writeRelabelConfig for RW MI yaml

Author: rakshith210

articles/azure-monitor/essentials/prometheus-remote-write-managed-identity.md

@@ -94,38 +94,52 @@ This step isn't required if you're using an AKS identity since it will already h
 
 			## https://prometheus.io/docs/prometheus/latest/configuration/configuration/#remote_write    
 			remoteWrite:
-			  - url: 'http://localhost:8081/api/v1/write'
+			- url: 'http://localhost:8081/api/v1/write'
+
+		##	Azure Managed Prometheus currently exports some default mixins in Grafana. These mixins are compatible with Azure Monitor agent on    		      ##      your Azure Kubernetes Service cluster. However, these mixins aren't compatible with Prometheus metrics scraped by the Kube 			##	Prometheus stack. In order to make these mixins compatible, uncomment remote write relabel configuration below:
+
+		##	writeRelabelConfigs:
+		##	  - sourceLabels: [metrics_path]
+		##	    regex: /metrics/cadvisor
+		##	    targetLabel: job
+		##	    replacement: cadvisor
+		##	    action: replace
+		##	  - sourceLabels: [job]
+		##	    regex: 'node-exporter'
+		##	    targetLabel: job
+		##	    replacement: node
+		##	    action: replace
 			containers:
-			  - name: prom-remotewrite
-				image: <CONTAINER-IMAGE-VERSION>
-				imagePullPolicy: Always
-				ports:
-				  - name: rw-port
-					containerPort: 8081
-				livenessProbe:
-				  httpGet:
-					path: /health
-					port: rw-port
-				  initialDelaySeconds: 10
-				  timeoutSeconds: 10
-				readinessProbe:
-				  httpGet:
-					path: /ready
-					port: rw-port
-				  initialDelaySeconds: 10
-				  timeoutSeconds: 10
-				env:
-				  - name: INGESTION_URL
-					value: <INGESTION_URL>
-				  - name: LISTENING_PORT
-					value: '8081'
-				  - name: IDENTITY_TYPE
-					value: userAssigned
-				  - name: AZURE_CLIENT_ID
-					value: <MANAGED-IDENTITY-CLIENT-ID>
-				  # Optional parameter
-				  - name: CLUSTER
-					value: <CLUSTER-NAME>
+			- name: prom-remotewrite
+		          image: <CONTAINER-IMAGE-VERSION>
+			  imagePullPolicy: Always
+			  ports:
+			  - name: rw-port
+			    containerPort: 8081
+			  livenessProbe:
+			    httpGet:
+			      path: /health
+			      port: rw-port
+			      initialDelaySeconds: 10
+			      timeoutSeconds: 10
+			  readinessProbe:
+			    httpGet:
+			      path: /ready
+			      port: rw-port
+			      initialDelaySeconds: 10
+			      timeoutSeconds: 10
+			  env:
+			    - name: INGESTION_URL
+			      value: <INGESTION_URL>
+			    - name: LISTENING_PORT
+			      value: '8081'
+			    - name: IDENTITY_TYPE
+			      value: userAssigned
+			    - name: AZURE_CLIENT_ID
+			      value: <MANAGED-IDENTITY-CLIENT-ID>
+			      # Optional parameter
+			    - name: CLUSTER
+			      value: <CLUSTER-NAME>
     ```