Update Image registry configuration during ABI

With the introduction of the fallback source policy when Image
source and mirrors are specified, image registry configuration
for ABI should be update to include that.

Author: sadasu

pkg/asset/agent/mirror/registriesconf.go

@@ -12,6 +12,7 @@ import (
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 
+	configv1 "github.com/openshift/api/config/v1"
 	"github.com/openshift/installer/pkg/asset"
 	"github.com/openshift/installer/pkg/asset/agent"
 	"github.com/openshift/installer/pkg/asset/agent/joiner"
@@ -220,6 +221,7 @@ func (i *RegistriesConf) generateRegistriesConf(imageDigestSources []types.Image
 		registry := sysregistriesv2.Registry{}
 		registry.Endpoint.Location = group.Source
 		registry.MirrorByDigestOnly = true
+		registry.Blocked = group.SourcePolicy == configv1.NeverContactSource
 		for _, mirror := range group.Mirrors {
 			registry.Mirrors = append(registry.Mirrors, sysregistriesv2.Endpoint{Location: mirror})
 		}