[Bug 1475260] [NEW] instances cannot resolve their own hostname

[Martin Pitt]

Public bug reported:

cloud instances created by juju are missing their hostname in
/etc/hosts. This results in effects like

$ sudo whoami
sudo: unable to resolve host juju-prod-ues-proposed-migration-machine-6
root

or failure to install packages like ssmtp.

Please add "manage_etc_hosts: true" to the user-data config supplied to
the instances. This is a kind of "unbreak my setup" option which you
always want when starting instances.

** Affects: juju-core (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- instances don't know their own hostname
+ instances cannot resolve their own hostname

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https://bugs.launchpad.net/bugs/1475260

Title:
  instances cannot resolve their own hostname

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