origin: certificate for the integrated registry is signed by unknown authority

[Conformance][templates] templateinstance readiness test [It] should report ready soon after all annotated objects are ready [Suite:openshift/conformance/parallel]

Aug  9 15:02:37.071: INFO: At 2018-08-09 14:44:48 +0000 UTC - event for cakephp-mysql-example-1-hook-pre: {kubelet ci-op-7zbtnkjy-f7020-ig-n-189r} Failed: Failed to pull image "172.30.100.193:5000/e2e-test-templates-nsmz2/cakephp-mysql-example@sha256:3494b291ff81f736cd75d99e0e625ff79d0bb3fa62bf7f4ac31a71e3ae90a96b": rpc error: code = Unknown desc = Get https://172.30.100.193:5000/v2/: x509: certificate signed by unknown authority
Aug  9 15:02:37.071: INFO: At 2018-08-09 14:44:48 +0000 UTC - event for cakephp-mysql-example-1-hook-pre: {kubelet ci-op-7zbtnkjy-f7020-ig-n-189r} Failed: Error: ErrImagePull
Aug  9 15:02:37.071: INFO: At 2018-08-09 14:44:49 +0000 UTC - event for cakephp-mysql-example-1-hook-pre: {kubelet ci-op-7zbtnkjy-f7020-ig-n-189r} SandboxChanged: Pod sandbox changed, it will be killed and re-created.
Aug  9 15:02:37.071: INFO: At 2018-08-09 14:44:51 +0000 UTC - event for cakephp-mysql-example-1-hook-pre: {kubelet ci-op-7zbtnkjy-f7020-ig-n-189r} Failed: Error: ImagePullBackOff
Aug  9 15:02:37.071: INFO: At 2018-08-09 14:44:51 +0000 UTC - event for cakephp-mysql-example-1-hook-pre: {kubelet ci-op-7zbtnkjy-f7020-ig-n-189r} BackOff: Back-off pulling image "172.30.100.193:5000/e2e-test-templates-nsmz2/cakephp-mysql-example@sha256:3494b291ff81f736cd75d99e0e625ff79d0bb3fa62bf7f4ac31a71e3ae90a96b"

[Feature:Builds][Conformance] s2i build with a root user image [It] should create a root build and pass with a privileged SCC [Suite:openshift/conformance/parallel]

Aug  9 14:46:30.810: INFO: Running 'oc logs --config=/tmp/admin.kubeconfig --namespace=e2e-test-s2i-build-root-2rpv6 pod/nodejspass-1-build -c sti-build -n e2e-test-s2i-build-root-2rpv6'
Aug  9 14:46:31.106: INFO: Log for pod "nodejspass-1-build"/"sti-build"
---->
pulling image error : Get https://172.30.100.193:5000/v2/: x509: certificate signed by unknown authority
error: build error: unable to get 172.30.100.193:5000/e2e-test-s2i-build-root-2rpv6/nodejsroot@sha256:14e02688141a069782da0d32697dc8344780d203c64489afc9f29676fde9672f
<----end of log for "nodejspass-1-build"/"sti-build"

... REDACTED ...

Pushing image docker-registry.default.svc:5000/e2e-test-s2i-build-root-2rpv6/nodejsroot:latest ...
Pushed 0/9 layers, 1% complete
Pushed 1/9 layers, 18% complete
Pushed 2/9 layers, 27% complete
Pushed 3/9 layers, 36% complete
Pushed 4/9 layers, 49% complete
Pushed 5/9 layers, 59% complete
Pushed 6/9 layers, 67% complete
Push successful

/kind test-flake

https://openshift-gce-devel.appspot.com/build/origin-ci-test/pr-logs/pull/openshift_image-registry/118/pull-ci-image-registry-e2e/106/

Other instances of this flake: https://unsid.com/openshift/pull-ci-image-registry-e2e/106/?resource=similar&segment=6686289:168439