This PR adds a metrics sidecar to Postfix based on https://github.com/kumina/postfix_exporter. It also adds integration with the Prometheus operator by adding a serviceMonitor and a prometheusRule.
Default behaviour is retained, i.e. you have to opt in to deploying metrics by setting metrics.enabled: true
The version of the Alpine-based Postfix image is also bumped as it had been static for a year.
Checklist
[x] Chart Version bumped
[x] Title of the PR starts with chart name (e.g. [prometheus-couchdb-exporter])
What this PR does / why we need it
This PR adds a metrics sidecar to Postfix based on https://github.com/kumina/postfix_exporter. It also adds integration with the Prometheus operator by adding a serviceMonitor and a prometheusRule.
Default behaviour is retained, i.e. you have to opt in to deploying metrics by setting
metrics.enabled: trueThe version of the Alpine-based Postfix image is also bumped as it had been static for a year.
Checklist
[prometheus-couchdb-exporter])