Do not check if tag exists + use alpine/helm:3 (!58) · Merge requests · Monitoring / helm-charts / Kubernetes Monitoring Helm Chart

Stop checking if the tag already exists as now tags in registry.cern.ch/monit are immutable
- https://registry.cern.ch/harbor/projects/3717/tag-strategy/immutable-tag
Use alpine/helm:3 a-la-cloud-native to simplify the CI
Use registry.cern.ch as entry point directly as:
- "Harbor only supports the Registry V2 API. You must use Docker client 1.6.0 or higher when pushing and pulling images." https://goharbor.io/docs/1.10/working-with-projects/working-with-images/pulling-pushing-images/

Do not check if tag exists + use alpine/helm:3