How to use envs in static agent configmap

Grafana Grafana Agent
, ,
1

Hello,
try to deploy grafana-agent in static mode into kubernetes and would like to get password for remote_write from env.
I’ve enabled -config.expand-env through values.agent.extraArgs,
env is defined by

    extraEnv:
      - name: REMOTE_WRITE_PASSWORD
        valueFrom:
          secretKeyRef:
            name: grafana-agent-remote-write
            key: password

and specification of configmap content by

   configMap:
      content: |-
        metrics:
          configs:
              remote_write:
                - url: https://myprometheus/prometheus/api/v1/write
                  basic_auth:
                    password: ${REMOTE_WRITE_PASSWORD}
                    username: username

Unfortunately env is not expanded. Any idea what is the issue ?