Knative docs installs out of date

[josiemundi]

Describe the bug
In the docs, for 'Setting up Knative Serving...' the Istio version is 1.0.7 and the Knative serving install is 0.7.1.

The docs state that this is '(currently the latest version)'. The latest version of Knative serving is 0.13.0.

For Istio, the file that is linked to is out of date, it is now up to 1.5.0, however in their docs they have 1.3.6.

For Knative serving install, there are new install scripts here.

Expected behavior
Up to date install of Knative

Actual behaviour
Out of date install of Knative, which possibly won't work

Environment Details (please complete the following information):
NA

If applicable please specify:
NA

[sympatheticmoose]

In https://appsody.dev/docs/using-appsody/building-and-deploying/#deployment-as-a-knative-service we split out local install and other installs, as I recall this was based on the state of the official docs at the time. The knative project used to provide a bunch of different install guides, until there was an effort to consolidate knative/docs#2137. I wonder now whether we could just link out to https://knative.dev/docs/install/any-kubernetes-cluster/ or whether we still need any custom guidance.

[josiemundi]

Personally, I think linking out to the docs would be fine.

[neeraj-laad]

I Agree, we were only documenting this ourselves as a point in time solution while Knative docs were still evolving. We should avoid documenting aspects owned by other projects as we will always be playing catch up.

[neeraj-laad]

We should just compare the instructions and make sure there is no additional setup that might be needed for Appsody. Though, I doubt that would be the case.

[sympatheticmoose]

Agreed - I think a test with a fresh install following the knative install guide and a quick compare.