Test eventing on KinD 1.17-1.19

[mattmoor]

Proposed Changes

Run Eventing e2e on Github Actions with KinD to get coverage of supported version range: 1.17 - 1.19

TODO: It might be worth parallelizing on -channel and -source, if those make sense as dimensions to test in parallel to speed things up.

• 🎁 Add new feature

Release Note

Eventing now tests the supported Kubernetes version range pre-submit.

Docs

N/A

[mattmoor]

cc @vaikas @n3wscott

[codecov]

Codecov Report

Merging #4273 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4273   +/-   ##
=======================================
  Coverage   80.26%   80.26%           
=======================================
  Files         287      287           
  Lines        7889     7889           
=======================================
  Hits         6332     6332           
  Misses       1174     1174           
  Partials      383      383           

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[mattmoor]

/retest

I couldn't have broken that :-/

[vaikas]

Thanks! Really awesome. Looks like these are coming from prow?

2020/10/11 15:29:03 Env variable ARTIFACTS not set. Using artifacts instead.
2020/10/11 15:29:13 Env variable ARTIFACTS not set. Using artifacts instead.
2020/10/11 15:29:18 Env variable ARTIFACTS not set. Using artifacts instead.
2020/10/11 15:29:33 Env variable ARTIFACTS not set. Using artifacts instead.

[mattmoor]

@vaikas I have some logic we might want to pick up for this downstream in mink, but I'd rather land this and follow-up?

I've rebased, so this should be good-to-go.

[vaikas]

/lgtm
/approve

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mattmoor, vaikas

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