grafana-kairosdb-datasource plugin broken on Grafana 11+: Angular support disabled by default

[maioranisimone]

Problem

The grafana-kairosdb-datasource plugin bundled in the chart and used in
the example dashboard is written in AngularJS. Starting from Grafana 11,
Angular plugin support is disabled by default, causing the datasource
to fail with:

{"message": "Angular plugins are not supported"}

This makes KairosDB dashboards non-functional on any Grafana 11+ or 12.x
deployment without manually enabling the deprecated angular_support_enabled
flag.

Suggested fix

Use the React-based fork maintained by ArpNetworking:
https://github.com/ArpNetworking/kairosdb-datasource

It provides prebuilt releases (zip) compatible with the Grafana plugin
install-from-URL mechanism:

grafana:                                                                                                                                                                                                                 
  plugins:                                                                                                                                                                                                               
    - https://github.com/ArpNetworking/kairosdb-datasource/releases/download/v4.0.7/kairosdb-datasource.zip;arpnetworking-kairosdb-datasource
  grafana.ini:                                                                                                                                                                                                           
    plugins:                                                                                
      allow_loading_unsigned_plugins: arpnetworking-kairosdb-datasource

The plugin is unsigned (not on the Grafana marketplace) so
allow_loading_unsigned_plugins is required.

The dashboard JSON also needs updating to reference the new plugin type —
see PR #24 (feat/dashboard-grafana10-compat).

Environment

• Grafana: 11+ / 12.x
• ExaMon: v0.5.0

[fbeneventi]

Fixed in #28: the umbrella chart now installs the React-based arpnetworking-kairosdb-datasource v4.0.7 from its GitHub release and provisions it with uid: examon-kairosdb. grafana.ini allows the unsigned plugin. Same fix applied to values-staging.yaml and values-production.yaml. Will close automatically when #28 merges into release/v0.5.0.

[fbeneventi]

PR #28 has been merged into release/v0.5.0 (commit ef07525), so this is now resolved on the v0.5.0 chart:

• KairosDB datasource provisioned as type: arpnetworking-kairosdb-datasource, uid: examon-kairosdb in values.yaml, values-staging.yaml, and values-production.yaml.
• React fork installed from the GitHub release URL via grafana.plugins.
• Unsigned plugin allowlisted in grafana.grafana.ini.plugins.allow_loading_unsigned_plugins.
• Bundled "Examon Test - Random Sensor" dashboard updated to reference the new plugin type and auto-provisioned via the Grafana dashboard sidecar (no manual import).
• Troubleshooting steps and the v0.4.0 -> v0.5.0 dashboard JSON rewrite (jq snippet) are documented in docs/Deployment/troubleshooting.md and docs/Deployment/upgrading.md.

Thank you @maioranisimone

Closing.