Kubectl api-versions vs .Capabilities.APIVersions

dnpuneeth3 · March 13, 2023, 1:01pm

Why am I getting the different output for kubectl api-versions and {{- printf “API versions: %v” .Capabilities.APIVersions }} ?

mmkmou · March 13, 2023, 8:21pm

kubectl api-versions return only the API versions and .Capabilites.APIVersions return the API versions and resources on the target clusters.

If you want to get the same result as .Capabilites.APIVersions, you can use this command kubectl api-resources

Regard

dnpuneeth3 · March 14, 2023, 4:15am

No, Both kubectl api-versions and .Capabilities.APIVersions return list of API versions.

mmkmou · March 14, 2023, 9:52am

Please below some documentation :

API version : API Overview | Kubernetes
Helm build -in resources (check sessions Capabilities) : Helm | Built-in Objects

To resume

kubectl api-versions ⇾ return the api version for example (apps/v1, batch/v1)
Capabilities return what capabilities the Kubernetes cluster supports
- Capabilities.APIVersions return both the API versions (apps/v1) and also the resources available on each version (apps/v1/Deployment)

Regard