We are seeing many instances of Error launching source instance: InvalidParameterValue: Value (ci-op-lt2fgmxg-2fe5b-gnfs4-bootstrap-profile) for parameter iamInstanceProfile.name is invalid. Invalid IAM Instance Profile name preventing openshift initial install and failing nightly payloads

4.12

intermittently this search will show it https://search.ci.openshift.org/?search=Invalid+IAM+Instance+Profile+name&maxAge=48h&context=1&type=bug%2Bissue%2Bjunit&name=&excludeName=&maxMatches=5&maxBytes=20971520&groupBy=job

1. Observe the nightly tests in https://amd64.ocp.releases.ci.openshift.org/#4.12.0-0.nightly where they install Openshift and sometimes attempt an upgrade
2. 
3.

See build-log.txt and find

level=error msg=Error: Error launching source instance: InvalidParameterValue: Value (ci-op-lt2fgmxg-2fe5b-gnfs4-bootstrap-profile) for parameter iamInstanceProfile.name is invalid. Invalid IAM Instance Profile name193level=error msg=	status code: 400, request id: 65fa1181-db49-420c-8154-f05fe6f71202194

the stable initial cluster install succeeds

Severity has been set to Moderate because this is causing failed payloads and if things get worse, we may have to elevate the severity.

Here are 3 examples where the error occurs:

https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.12-e2e-aws-sdn-upgrade/1564136609899614208
https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.12-e2e-aws-sdn-upgrade/1564136611111768064
https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.12-e2e-aws-sdn-upgrade/1564136611946434560

This search will show many more failures: https://search.ci.openshift.org/?search=Invalid+IAM+Instance+Profile+name&maxAge=48h&context=1&type=build-log&name=&excludeName=&maxMatches=5&maxBytes=20971520&groupBy=job