fix: Allow for custom otel env vars

Author: teeohhem

charts/hdx-oss-v2/templates/otel-collector-deployment.yaml

@@ -52,6 +52,9 @@ spec:
               value: {{ .Values.otel.clickhouseUser | default .Values.clickhouse.config.users.otelUserName }}
             - name: CLICKHOUSE_PASSWORD
               value: {{ .Values.otel.clickhousePassword | default .Values.clickhouse.config.users.otelUserPassword }}
+            {{- with .Values.otel.env }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
 ---
 apiVersion: v1
 kind: Service

charts/hdx-oss-v2/values.yaml

@@ -220,6 +220,16 @@ otel:
   httpPort: 4318
   healthPort: 8888
   enabled: true
+  env: []
+    # Additional environment variables can be configured here
+    # Example:
+    # - name: CUSTOM_VAR
+    #   value: "my-value"
+    # - name: SECRET_VAR
+    #   valueFrom:
+    #     secretKeyRef:
+    #       name: my-secret
+    #       key: secret-key
   # Opamp server URL - defaults to the app service. Customize if you want to use a different Opamp server.
   # Leave empty if you want to use the app service.
   # Example: opampServerUrl: "http://custom-opamp-server:4320"