feat: add fleet_id environment variable to deployment configuration (#2053)

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# Release Notes to Publish (nr-k8s-otel-collector)
If this PR contains changes in `nr-k8s-otel-collector`, please complete
the following section. All other charts should ignore this section.

<!--BEGIN-RELEASE-NOTES-->
## 🚀 What's Changed
* Tell the world about the latest changes in the chart.
<!--END-RELEASE-NOTES-->

Author: kprasanthi99

charts/pipeline-control-gateway/Chart.yaml

@@ -1,12 +1,12 @@
 apiVersion: v2
 name: pipeline-control-gateway
 type: application
-version: 2.1.0
+version: 2.2.0
 dependencies:
   - name: common-library
     version: 1.4.0
     repository: https://helm-charts.newrelic.com
-appVersion: "2.0.1"
+appVersion: "2.2.0"
 maintainers:
   - name: pipeline-control
     url: https://github.com/orgs/newrelic/teams/pcon/members

charts/pipeline-control-gateway/templates/deployment-configmap.yaml

@@ -19,4 +19,4 @@ data:
     {{- else }}
     # No configuration provided - please provide configuration via Values.generated
     {{- end }}
-    {{- end }}
+    {{- end }}

charts/pipeline-control-gateway/templates/deployment.yaml

@@ -82,6 +82,8 @@ spec:
                 secretKeyRef:
                   name: {{ include "newrelic.common.license.secretName" . }}
                   key: {{ include "newrelic.common.license.secretKeyName" . }}
+            - name: FLEET_ID
+              value: "{{ .Values.fleet_id }}"
             {{- with .Values.deployment.envs }}
             {{- . | toYaml | nindent 12 }}
             {{- end }}

charts/pipeline-control-gateway/values.yaml

@@ -22,7 +22,7 @@ image:
   # -- The pull policy is defaulted to IfNotPresent, which skips pulling an image if it already exists. If pullPolicy is defined without a specific value, it is also set to Always.
   pullPolicy: IfNotPresent
   # --  Overrides the image tag whose default is the chart appVersion.
-  tag: "2.0.1"
+  tag: "2.2.0"
 
 # -- Name of the Kubernetes cluster monitored. Mandatory. Can be configured also with `global.cluster`
 cluster: ""
@@ -133,6 +133,11 @@ verboseLog:
 # @default -- `false`
 nrStaging:
 
+#  -- The unique identifier for the gateway fleet associated with the Pipeline Control Gateway (PCG) agent. Can be configured also with `fleet_id`
+# @default -- `""`
+fleet_id: ""
+
+
 # -- (bool) Send only the [metrics required](https://github.com/newrelic/helm-charts/tree/master/charts/nr-k8s-otel-collector/docs/metrics-lowDataMode.md) to light up the NR kubernetes UI, this agent defaults to setting lowDataMode true, but if this setting is unset, lowDataMode will be set to false
 # @default -- `false`
 lowDataMode:
@@ -158,6 +163,7 @@ generated:
           path: "/health/config"
   receivers:
     nrproprietaryreceiver:
+      fleet_id: ${env:FLEET_ID:-""}
       proxy: false
       enable_runtime_metrics: true
       server: