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[Scott Moser <smoser@xxxxxxxxxx>]

This bug is believed to be fixed in cloud-init in 17.1. If this is still
a problem for you, please make a comment and set the state back to New

Thank you.

** Changed in: cloud-init
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1717627

Title:
  permission denied when executing dhclient in Ec2 datasource

Status in cloud-init:
  Fix Released
Status in cloud-init package in Ubuntu:
  Fix Released

Bug description:
  in the ec2 datasource, cloud-init runs dhclient from a tmp file in
  order to avoid apparmor restrictions and side affects.

  In a change for bug 1707222 we started using /run/cloud-init for tmpfiles.
  /run is mounted noexec.  See example:

  $ sudo /run/cloud-init/tmp/dhclient -1 -v -lf /run/cloud-init/tmp/cloud-init-dhcp-bs6g4xkw/dhcp.leases -pf /run/cloud-init/tmp/cloud-init-dhcp-bs6g4xkw/dhclient.pid eth0 -sf /bin/true
  sudo: unable to execute /run/cloud-init/tmp/dhclient: Permission denied

  So, we need a tmp file in a place that allows execution.

  Related bugs:
   * bug 1709772: Enable ipv6 support on EC2
   * bug 1707222: usage of /tmp during boot is not safe may get files deleted.
   * bug 1717627: permission denied executing dhclient from /run

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