test:
[sig-devex][Feature:ImageEcosystem][Slow] openshift sample application repositories [sig-devex][Feature:ImageEcosystem][ruby] test ruby images with rails-ex db repo  Building rails-postgresql app from new-app should build a rails-postgresql image and run it in a pod 

is failing frequently in CI, see search results:
https://search.ci.openshift.org/?maxAge=168h&context=1&type=bug%2Bjunit&name=&maxMatches=5&maxBytes=20971520&groupBy=job&search=%5C%5Bsig-devex%5C%5D%5C%5BFeature%3AImageEcosystem%5C%5D%5C%5BSlow%5C%5D+openshift+sample+application+repositories+%5C%5Bsig-devex%5C%5D%5C%5BFeature%3AImageEcosystem%5C%5D%5C%5Bruby%5C%5D+test+ruby+images+with+rails-ex+db+repo++Building+rails-postgresql+app+from+new-app+should+build+a+rails-postgresql+image+and+run+it+in+a+pod


Sample: https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/openshift_builder/224/pull-ci-openshift-builder-release-4.7-e2e-aws-image-ecosystem/1371536495864713216