Bug 1370930

Description of problem:

First time this I have seen this happen, but build is failing after git push on python 2.7 application.

Version-Release number of selected component (if applicable):

Dev preview

How reproducible:

I don't know.

Steps to Reproduce:

1. Do a git push on python 2.7 application
2. Watch build progress in console.  
3. See something like: "Build python-app #43 failed. View Log | Dismiss"
4. Try and "rebuild", get same error message.  

Actual results:

Build python-app #43 failed. View Log | Dismiss

Expected results:

Build, deploy and scale occurs after git push.  

Additional info:

Last part of error logs:

I0828 10:09:01.417159       1 sti.go:334] Successfully built my-app/python-app-42:8f4d2b5d
I0828 10:09:01.455404       1 cleanup.go:23] Removing temporary directory /tmp/s2i-build195801070
I0828 10:09:01.455429       1 fs.go:156] Removing directory '/tmp/s2i-build195801070'
I0828 10:09:01.529446       1 sti.go:268] Using provided push secret for pushing 172.30.30.43:5000/my-app/python-app:latest image
I0828 10:09:01.529478       1 sti.go:272] Pushing 172.30.30.43:5000/my-app/python-app:latest image ...
E0828 10:09:01.672606       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:06.751858       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:11.823631       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:16.883281       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:21.957326       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:27.027646       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
E0828 10:09:32.099938       1 dockerutil.go:86] push for image 172.30.30.43:5000/my-app/python-app:latest failed, will retry in 5s ...
I0828 10:09:37.100249       1 sti.go:277] Registry server Address: 
I0828 10:09:37.100281       1 sti.go:278] Registry server User Name: serviceaccount
I0828 10:09:37.100289       1 sti.go:279] Registry server Email: serviceaccount
I0828 10:09:37.100296       1 sti.go:284] Registry server Password: <<non-empty>>
F0828 10:09:37.100306       1 builder.go:204] Error: build error: Failed to push image. Response from registry is: unable to ping registry endpoint https://172.30.30.43:5000/v0/
v2 ping attempt failed with error: Get https://172.30.30.43:5000/v2/: x509: certificate signed by unknown authority
v1 ping attempt failed with error: Get https://172.30.30.43:5000/v1/_ping: x509: certificate signed by unknown authority