Enable Knative installation on group and instance level clusters

- Show Knative install button on group/instance cluster pages
- Allow Knative to be installed on group/instance clusters
- Add feature specs for installing applications on group/instance
  clusters
- Add changelog entry
- Update docs to reflect that Knative can now be installed on
  group-level and instance-level clusters

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/frontend/clusters/components/applications_spec.js b/spec/frontend/clusters/components/applications_spec.js
index 1d8984cea0a..fbcab078993 100644
--- a/spec/frontend/clusters/components/applications_spec.js
+++ b/spec/frontend/clusters/components/applications_spec.js
@@ -89,7 +89,7 @@ describe('Applications', () => {
     });
 
     it('renders a row for Knative', () => {
-      expect(vm.$el.querySelector('.js-cluster-application-row-knative')).toBeNull();
+      expect(vm.$el.querySelector('.js-cluster-application-row-knative')).not.toBeNull();
     });
   });
 
@@ -126,7 +126,7 @@ describe('Applications', () => {
     });
 
     it('renders a row for Knative', () => {
-      expect(vm.$el.querySelector('.js-cluster-application-row-knative')).toBeNull();
+      expect(vm.$el.querySelector('.js-cluster-application-row-knative')).not.toBeNull();
     });
   });