onitake commented on issue #3557: cloud-init fails to fetch metadata when shared networks are present URL: https://github.com/apache/cloudstack/issues/3557#issuecomment-524793882 I think we found the "right" way to do this: If the metadata server is enabled on an interface, it will offer the special hostname `data-server` on its DNS server. This is already the case, and I really don't understand why cloud-init isn't already using that. This should always be the first host that cloud-init checks. As a second step, the "only latest lease" heuristic should go be replaced with "try all leases in reverse chronological order". Ideally, _all_ virtual routers should allow resolving the `data-server` hostname, returning the IP address of a router that has the metadata server enabled. If none of them do, the hostname shouldn't exist.
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