Support air-gapped installation

[jplitza]

I installed the the getting started instructions to deploy the helm chart in an air gapped cluster. However, no dashboards or rules appear, because the dnation-kubernetes-jsonnet-translator pod seems to require an internet connection:

2025-12-12 09:47:39,765 - [ERROR] - Failed to install libsonnet https://github.com/thelastpickle/grafonnet-polystat-panel@275a48de57afdac0d72219d82863d8ab8bd0e682, error: b'archive install failed: Get "https://github.com/thelastpickle/grafonnet-polystat-panel/archive/275a48de57afdac0d72219d82863d8ab8bd0e682.tar.gz": dial tcp 140.82.121.3:443: connect: network is unreachable\nretrying with git...\njb: error: failed to install packages: downloading: exec: "git": executable file not found in $PATH\n'
2025-12-12 09:47:54,869 - [INFO ] - Processing object: dnation-kubernetes-monitoring-rules-jsonnet
2025-12-12 09:47:54,870 - [INFO ] - Processing object: dnation-kubernetes-monitoring-dashboards-jsonnet
2025-12-12 09:47:54,887 - [INFO ] - File jsonnet-rules.tar.gz extracted to jsonnet_archive_dnation-kubernetes-monitoring-rules-jsonnet
2025-12-12 09:47:54,889 - [INFO ] - File jsonnet-dashboards.tar.gz extracted to jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet
2025-12-12 09:47:55,216 - [ERROR] - dashboards.jsonnet is not a valid jsonnet, raised error: RUNTIME ERROR: couldn't open import "grafonnet-polystat-panel/plugin.libsonnet": no match locally or in the Jsonnet library paths
        jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet/dashboards/k8s/node-overview-dashboards.libsonnet:19:20-70     thunk <grafana> from <$>
        jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet/dashboards/k8s/node-overview-dashboards.libsonnet:20:19-26
        jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet/dashboards/k8s/node-overview-dashboards.libsonnet:54:9-18
        jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet/util.libsonnet:(600:13)-(606:24)       object <anonymous>
        jsonnet_archive_dnation-kubernetes-monitoring-dashboards-jsonnet/dashboards.jsonnet:31:25-35    object <anonymous>
        During manifestation

2025-12-12 09:47:55,471 - [INFO ] - Rules resource prometheus-rules-generated created

[viktor-cech]

Hello, this should be fixed now.
Please try again with the latest versions of kubernetes-monitoring or kubernetes-monitoring-stack.

Related merge requests:

• Remove unnecessary grafonnet libs for translator #222
• Update image - add grafonnet polystat panel to the docker image kubernetes-jsonnet-translator#34

[jplitza]

Can confirm, thanks!