Add the list of AR hostnames

PiperOrigin-RevId: 642305380
Change-Id: I89042423b2e6f5fbcfc01a88b7f6cde5217ba7b5

tools/cloudbuild/ar_hostnames.txt

@@ -0,0 +1,45 @@
+# TODO(b/346542977): De-duplicate this file with existing ar_hostnames.txt, and
+# tie up with region turnup automation.
+# List of hostnames to publish images to. Place one on each line.
+africa-south1-docker.pkg.dev
+asia-east1-docker.pkg.dev
+asia-east2-docker.pkg.dev
+asia-northeast1-docker.pkg.dev
+asia-northeast2-docker.pkg.dev
+asia-northeast3-docker.pkg.dev
+asia-south1-docker.pkg.dev
+asia-south2-docker.pkg.dev
+asia-southeast1-docker.pkg.dev
+asia-southeast2-docker.pkg.dev
+australia-southeast1-docker.pkg.dev
+australia-southeast2-docker.pkg.dev
+europe-central2-docker.pkg.dev
+europe-north1-docker.pkg.dev
+europe-southwest1-docker.pkg.dev
+europe-west1-docker.pkg.dev
+europe-west10-docker.pkg.dev
+europe-west12-docker.pkg.dev
+europe-west2-docker.pkg.dev
+europe-west3-docker.pkg.dev
+europe-west4-docker.pkg.dev
+europe-west6-docker.pkg.dev
+europe-west8-docker.pkg.dev
+europe-west9-docker.pkg.dev
+me-central1-docker.pkg.dev
+me-central2-docker.pkg.dev
+me-west1-docker.pkg.dev
+northamerica-northeast1-docker.pkg.dev
+northamerica-northeast2-docker.pkg.dev
+southamerica-east1-docker.pkg.dev
+southamerica-west1-docker.pkg.dev
+us-central1-docker.pkg.dev
+us-east1-docker.pkg.dev
+us-east4-docker.pkg.dev
+us-east5-docker.pkg.dev
+us-east7-docker.pkg.dev
+us-south1-docker.pkg.dev
+us-west1-docker.pkg.dev
+us-west2-docker.pkg.dev
+us-west3-docker.pkg.dev
+us-west4-docker.pkg.dev
+us-west8-docker.pkg.dev