Missing prometheus port

[danielwegener]

RocketChat can expose prometheus metrics. This can be enabled via ui or env (OVERWRITE_SETTING_Prometheus_Enabled). In order to scrape rocketchat via prometheus operator (e.g. PodMonitor), it is required to declare the Pod metrics port, e.g.:

        ports:
        - name: http
          containerPort: 3000
        - name: metrics
          containerPort: 9458

A more elaborate implementation would put all these settings behind a value flag that would:

• set the environment variable OVERWRITE_SETTING_Prometheus_Enabled
• add the metrics port
• optionally add a prometheus operator PodMonitor