`charmcraft pack` fails on Resolute

[jameinel]

Check existing issues

• I've verified that this bug isn't described by any existing issues.

Bug description

It seems that there is an app-armor conflict between a Jammy container and a Resolute host when trying to charmcraft pack.
When running I get this failure from charmcraft:

I'm trying to build the juju-controller charm, which wants a Jammy container. I just did

charmcraft pack

Using charmcraft 3.

### Steps to reproduce

git clone https://github.com/juju/juju-controller
cd juju-controller
sudo snap install charmcraft --classic --channel 3.x/stable
charmcraft pack

Fails with:

charmcraft pack
Failed to enable snapd service.

• Command that failed: 'lxc --project charmcraft exec local:base-instance-charmcraft-buildd-base-v7--20d64a5acd5c317c9c8d -- env CRAFT_MANAGED_MODE=1 CHARMCRAFT_MANAGED_MODE=1 DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true DEBIAN_PRIORITY=critical systemctl restart snapd.service'
• Command exit code: 1
• Command standard error output: b'Job for snapd.service failed because the control process exited with error code.\nSee "systemctl status snapd.service" and "journalctl -xe" for details.\n'
  Full execution log: '/home/jameinel/.local/state/charmcraft/log/charmcraft-20260807-123357.396086.log'

Using lxc to investigate the container, I see this failure:

-- The unit tmp-syscheck\x2dmountpoint\x2d1453099174.mount has successfully entered the 'dead' state.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: daemon.go:353: adjusting startup timeout by 30s (pessimistic estimate of 30s plus 5s pe
r snap)
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: backends.go:58: AppArmor status: apparmor is enabled and all features are available
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: cannot run daemon: state startup errors: [cannot reload snap-confine apparmor profile:
cannot load apparmor profiles: exit status 185
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: apparmor_parser output:
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: /sbin/apparmor_parser: Unable to replace "mount-namespace-capture-helper". Profile doe
sn't conform to protocol
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: /sbin/apparmor_parser: Unable to replace "/usr/lib/snapd/snap-confine". Profile doesn'
t conform to protocol
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: ]
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: snapd.service: Main process exited, code=exited, status=1/FAILUR
E
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support

-- An ExecStart= process belonging to unit snapd.service has exited.

-- The process' exit code is 'exited' and its exit status is 1.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: snapd.service: Failed with result 'exit-code'.

From some searching "profile doesn't conform to protocol" seems that Jammy AppArmor is not compatible with Resolute.


### Environment

Host is Ubuntu Resolute 26.04, container is Jammy 20.04. 

### charmcraft.yaml

```yaml
If the issue is specific to a project, share its `charmcraft.yaml`. This field automatically renders as YAML, so you don't need to add special formatting.

Log output

-- Subject: A start job for unit snapd.service has begun execution
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- A start job for unit snapd.service has begun execution.
-- 
-- The job identifier is 1492.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: overlord.go:274: Acquiring state lock file
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: overlord.go:279: Acquired state lock file
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: daemon.go:250: started snapd/2.67.1+20.04 (series 16; classic) ubuntu/20.04 (amd64) lin
ux/7.0.0-29-generic.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: tmp-syscheck\x2dmountpoint\x2d1453099174.mount: Succeeded.
-- Subject: Unit succeeded
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- The unit tmp-syscheck\x2dmountpoint\x2d1453099174.mount has successfully entered the 'dead' state.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: daemon.go:353: adjusting startup timeout by 30s (pessimistic estimate of 30s plus 5s pe
r snap)
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: backends.go:58: AppArmor status: apparmor is enabled and all features are available
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: cannot run daemon: state startup errors: [cannot reload snap-confine apparmor profile: 
cannot load apparmor profiles: exit status 185
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: apparmor_parser output:
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: /sbin/apparmor_parser: Unable to replace "mount-namespace-capture-helper".  Profile doe
sn't conform to protocol
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: /sbin/apparmor_parser: Unable to replace "/usr/lib/snapd/snap-confine".  Profile doesn'
t conform to protocol
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 snapd[3063]: ]
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: snapd.service: Main process exited, code=exited, status=1/FAILUR
E
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- An ExecStart= process belonging to unit snapd.service has exited.
-- 
-- The process' exit code is 'exited' and its exit status is 1.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: snapd.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- The unit snapd.service has entered the 'failed' state with result 'exit-code'.
Aug 07 16:24:53 charmcraft-juju-controller-ubuntu-2004-amd64-4074305 systemd[1]: Failed to start Snap Daemon.