update upload-test-images.sh to compatible with docker hub

[zxDiscovery]

Follow knative/serving#2715

Proposed Changes

• Push test-images using just their basepath (that is: The folder they're located in, for example timeout). That makes the upload script compatible with Dockerhub.
• Actually default --dockerrepo to DOCKER_REPO_OVERRIDE as the readmes say.

[evankanderson]

/ok-to-test

…

On Tue, Jan 15, 2019 at 12:56 AM Knative Prow Robot < ***@***.***> wrote: Hi @zxDiscovery <https://github.com/zxDiscovery>. Thanks for your PR. I'm waiting for a knative <https://github.com/orgs/knative/people> member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org <https://github.com/orgs/knative/people> to skip this step. I understand the commands that are listed here <https://go.k8s.io/bot-commands>. Instructions for interacting with me using PR comments are available here <https://git.k8s.io/community/contributors/guide/pull-requests.md>. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra <https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:> repository. — You are receiving this because your review was requested. Reply to this email directly, view it on GitHub <#725 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHlyN7bnJB46mL7aYGJqgSUPVNa1J4R5ks5vDZe6gaJpZM4aAgTb> .

-- Evan Anderson <[email protected]>

[zxDiscovery]

/test pull-knative-eventing-integration-tests

[zxDiscovery]

/test pull-knative-eventing-integration-tests

[zxDiscovery]

The CI test passed. Is this ready to merge? @evankanderson

[evankanderson]

This looks to line up with knative/serving#2716

/approve
/lgtm

Sorry for the delay, I'd just put the /ok-to-test in to get the tests started on this PR.

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: evankanderson, zxDiscovery

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