Properly integrate k8s metrics and create grafana dashboards

[ukinimod]

Possible Implementations:

Switch to https://github.com/grafana/helm-charts and:

• https://grafana.github.io/grizzly/
• https://github.com/grafana/helm-charts/blob/main/charts/grafana/README.md#import-dashboards
• https://grafana.com/docs/grafana/latest/administration/provisioning/#dashboards
• https://grafana.com/docs/grafana-cloud/infrastructure-as-code/