[Bug 1904580] Re: Permissions 0644 for '/var/lib/nova/.ssh/id_rsa' are too open

[Facundo Ciccioli]

Subscribing to field-high since we've seen several customers already
affected by this, it will only get worse as more keep upgrading to
Ussuri.

** Tags added: field-high

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https://bugs.launchpad.net/bugs/1904580

Title:
  Permissions 0644 for '/var/lib/nova/.ssh/id_rsa' are too open

Status in OpenStack Nova Compute Charm:
  New
Status in nova package in Ubuntu:
  Confirmed

Bug description:
  Charm revision: 320
  Cloud: bionic-ussuri

  Permissions 0644 for '/var/lib/nova/.ssh/id_rsa' are too open.
  Load key "/var/lib/nova/.ssh/id_rsa": bad permissions
  nova at 10.35.80.49: Permission denied (publickey).

  This was preventing nova resizing:

  /var/log/nova/nova-compute.log:2020-11-17 13:14:42.210 100221 ERROR
  oslo_messaging.rpc.server Command: ssh -o BatchMode=yes 10.35.80.49
  mkdir -p /var/lib/nova/instances/39caee98-b81c-4cef-9810-815f2ecf1fc4

  Manually setting to 0600 fixed the issue.

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