ederst: Add config drive as a source for OpenStack instance metadata

JobBuild
13845
07-04 11:34
pull-kops-e2e-kubernetes-aws 1543920916881215488
pull-kops-verify-boilerplate 1543920916998656000
pull-kops-verify-generated 1543920916914769920
pull-kops-verify-gofmt 1543920917040599040
pull-kops-verify-golangci-lint 1543920917216759808
pull-kops-verify-gomod 1543920916948324352
pull-kops-verify-govet 1543920917179011072