local policy-rc.d file preventing services from running in CI

[Tom Haddon]

The presence of the following file is preventing services from running in CI:

/usr/local/sbin/policy-rc.d
:: #!/bin/sh
::
:: # policy-rc.d script for chroots.
:: # Copyright (c) 2007 Peter Palfrader <email address hidden>
:: # License: <weasel> MIT, if you want one.
::
:: while true; do
:: case "$1" in
:: -*) shift ;;
:: makedev) exit 0;;
:: *) echo "Not running services in chroot."; exit 101 ;;
:: esac
:: done

In my `.launchpad.yaml` I ran `rm /usr/local/sbin/policy-rc.d` before any other steps and was able to run full tests, which start postgresql and then a django web server.

[Jürgen Gmach (jugmac00)]

Thanks a lot for filing this issue and providing a workaround.

More info about that issue:
http://jpetazzo.github.io/2013/10/06/policy-rc-d-do-not-start-services-automatically/

[Colin Watson (cjwatson)]

This isn't a consequence of running in Launchpad; that file is in the LXD image that lpcraft uses:

  $ lxc image export craft-com.ubuntu.cloud-buildd:focal/amd64
  Image exported successfully!
  $ tar tvf focal-server-cloudimg-amd64-lxd_combined.tar.gz | grep usr/local/sbin/policy-rc.d
  -rwxr-xr-x 0/0 298 2021-08-16 11:56 rootfs/usr/local/sbin/policy-rc.d

lpcraft should possibly just remove it; I agree it doesn't obviously make sense in this context. (We should test that it doesn't have weird consequences for what processes are run when the container created by lpcraft starts up, though.)