Feature flags were introduced to allow you to try experimental features that are not enabled by default.
To learn about feature values and how to enable features, refer here.
There are some feature flags that may require a restart of the Rancher server container. These features that require a restart are marked in the table of these docs and in the UI.
The following is a list of the feature flags available in Rancher:
fleet: Rancher comes with Fleet preinstalled in v2.5+.
istio-virtual-service-ui: This feature enables a UI to create, read, update, and delete Istio virtual services and destination rules, which are traffic management features of Istio.
unsupported-storage-drivers: This feature allows unsupported storage drivers.. In other words, it enables types for storage providers and provisioners that are not enabled by default.
The below table shows the availability and default value for feature flags in Rancher:
|Feature Flag Name||Default Value||Status||Available as of||Rancher Restart Required?|
|GA* and no longer a feature flag||v2.5.0||X|
* Generally Available. This feature is included in Rancher and it is not experimental.