Update kapp-controller plugin to current version.

[absoludity]

Signed-off-by: Michael Nelson minelson@vmware.com

Description of the change

This PR just updates the (very) outdated kapp-controller plugin to match the current carvel k8s API.

The nice thing is that since the Kubeapps dashboard is using the aggregated API, running Kubeapps with both helm and carvel plugins:

--- a/docs/user/manifests/kubeapps-local-dev-values.yaml
+++ b/docs/user/manifests/kubeapps-local-dev-values.yaml
@@ -15,6 +15,11 @@ postgresql:
   existingSecret: postgresql-db
 kubeappsapis:
   replicaCount: 1
+  enabledPlugins:
+    - helm
+    - kapp-controller
+  image:
+    tag: dev5
 ingress:
   enabled: true
   hostname: localhost

enables viewing a combined catalog:

Benefits

Carvel plugin works (only get available packages, and even that is missing data).

Possible drawbacks

None.

Applicable issues

• Ref Carvel package support in Kubeapps #3221

Additional information

cc @migmartri

I'll follow-up with another PR that adds more metadata (icon, description etc.) to the available package summaries.

[migmartri]

Thanks @absoludity!

[migmartri]

why is it that now we support other clusters?

[absoludity]

I'm not seeing any reason why we wouldn't... we use the users cred to whatever cluster is in the context. As long as kapp-controller is installed there, it should work fine (but haven't tested it). I needed to update this because the UI always sends the cluster with the request anyway. If there's a problem we can make it conditional (I'll check it at some point).