Tracked in Github Issues as https://github.com/canonical/cloud- init/issues/3410
** Bug watch added: github.com/canonical/cloud-init/issues #3410 https://github.com/canonical/cloud-init/issues/3410 ** Changed in: cloud-init Status: Triaged => Expired -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/1837106 Title: "socket.getaddrinfo" of "metadata.google.internal" fails on GCE Status in cloud-init: Expired Bug description: When booting an Ubuntu 18.04 based image on GCE, we see the following messages in the log: 2019-05-30 00:05:27,818 - util.py[DEBUG]: Resolving URL: http://metadata.google.internal/computeMetadata/v1/ took 0.001 seconds 2019-05-30 00:05:27,818 - DataSourceGCE.py[DEBUG]: http://metadata.google.internal/computeMetadata/v1/ is not resolvable 2019-05-30 00:05:27,818 - util.py[DEBUG]: Crawl of GCE metadata service took 0.013 seconds 2019-05-30 00:05:27,818 - DataSourceGCE.py[WARNING]: address "http://metadata.google.internal/computeMetadata/v1/"; is not resolvable Further, the contents of "/run/cloud-init/instance-data.json" doesn't have any meaningful data. What I've found is that, read_md() in DataSourceGCE.py will call util.is_resolvable_url() on the address "http://metadata.google.internal/computeMetadata/v1/";, which results is calling socket.getaddrinfo() for "metadata.google.internal", and it's this socket.getaddrinfo() call that fails. This failure appears to be due to the fact that "cloud-init.service" does not ensure it waits for DNS (i.e. "systemd-resolved.service") to be working before it runs. I say this because: 1. If I add "After=systemd-resolved.service" to the "cloud- init.service" definition, this failures goes away. 2. If I run "cloud-init init" after the system has booted up (i.e. after enough time has passed, such that DNS is working), the failure doesn't occur. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1837106/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
