Comment 32 for bug 1771382

Systemd by default executes things, with execv, not execve. Hence the default environment is not available. However, cloud-init generator is executed by /bin/sh which does that a built-in default path

$ lxc launch images:opensuse/15.0 test-sh-built-in-path

$ lxc exec test-sh-built-in-path -- env -u PATH /bin/sh -c 'echo $PATH'
/usr/local/bin:/usr/bin:/bin:.

On ubuntu, it is instead:

$ env -u PATH /bin/dash -c 'echo $PATH'
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

$ env -u PATH /bin/bash -c 'echo $PATH'
/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:.

Maybe you want to report a bug against Suse's default /bin/sh about this....

Also /bin/dash and /bin/bash differences are akward....