InfluxDB migration to backend data source

[joey-grafana]

Checklist:

• Run query in Explore InfluxDB: backend migration (run query in explore) #43352
• Field keys, Measurements, Retention policies, Tag keys, Tag values InfluxDB: metricFindQuery migration to backend #44546
• New variable types InfluxDB: new row value types #44789
• Variables InfluxDB: variables migration to backend #45512
• Annotations InfluxDB: annotations migration to backend #45635
• Run query in dashboard InfluxDB: test datasource #45636
• Run query in edit mode InfluxDB: test datasource #45636
• Influx dashboards InfluxDB: test datasource #45636
• TestDataSource InfluxDB: test datasource #45636

[gtk-grafana]

Closing as this looks completed.

[kylebrandt]

@gtk-grafana (@itsmylife)

So this isn't complete. There are two different things:

• Deprecating Browser Access Mode for Server Access Mode (InfluxDB: Remove browser ('direct' access) mode. #53529)
• Migrating Datasources to the backend

Migrating datasource to the backend makes it so the backend is what takes a query model, and turns into an API request, and in the dataquery case turns the response for the into dataframes. This makes things consistent with alerting and FE queries instead of doing it twice - enables server side query caching etc.

So currently the backend migration (what this issue is about) is under the feature flag influxdbBackendMigration so it has not been shipped. It is also perhaps not complete as far as what needs to be done under the feature flag -- not sure.

[itsmylife]

I am closing this issue since it is completed. This was phase 1 of the migration. Phase 2 is here #60321