[Wikidata-bugs] [Maniphest] [Created] T178722: Remove puppet class role::labs::lvm::mnt

Fri, 20 Oct 2017 14:56:24 -0700

hashar created this task.
hashar added projects: Cloud-Services, PAWS, Beta-Cluster-Infrastructure, Wikimedia-Logstash, Wikidata.

TASK DESCRIPTION

WMCS instances have some extra disk space which is not mounted by default. It can be mounted on /srv using role::labs::lvm::srv. There is a legacy class role::labs::lvm::mnt (which mount it on /mnt) which is deprecated and should be removed entirely.

Continuous integration was among the early adopters of /mnt. They all got migrated to /srv via T146381.

Labs instances should be switched to role::labs::lvm::srv @hashar wrote a migration guide on https://gerrit.wikimedia.org/r/#/c/330412/ :

  • switch from role::labs::lvm::mnt to role::labs::lvm::srv
  • run puppet
  • kill anything that might be using /mnt (lsof /mnt)
  • manually umount /mnt
  • ensure /srv is mounted
  • VERIFY /mnt is no more refered to in /etc/fstab
    • failure to do so would cause the instance to be deadlocked on the next reboot

Instances https://tools.wmflabs.org/openstack-browser/puppetclass/role::labs::lvm::mnt

As of October 20 2017:

Project: deployment-prep #beta-cluster-infrastructure

  • deployment-logstash2.deployment-prep.eqiad.wmflabs

Project: tools #paws

  • tools-paws-*

Project: wikidata-ldf #wikidata

  • wikidata-ldf.wikidata-ldf.eqiad.wmflabs

TASK DETAIL
https://phabricator.wikimedia.org/T178722

EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: hashar
Cc: hashar, R96340, GoranSMilovanovic, Chicocvenancio, QZanden, Tbscho, JJMC89, TerraCodes, Luke081515, Jane023, Wikidata-bugs, aude, yuvipanda, Capt_Swing, Gryllida, scfc, Mbch331, Jay8g, Krenair, fgiunchedi, jeremyb, greg, chasemp
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