xenial: ubuntu-advantage cannot enable livepatch

ii ubuntu-advantage-tools 10ubuntu0.16.04.1 all management tools for Ubuntu Advantage

cloud-init 18.5-45-g3554ffe8-0ubuntu1~16.04.1

Trying to enable livepatch using ubuntu-advantage cloud-config fails on Xenial only due to timing of snapd package install as a prerequisite dependency

The errors you see in cloud-init.log are the follpatchowing (and livepatch is not enabled)

Warning: /snap/bin was not found in your $PATH. If you've not restarted your\n session since you installed snapd, try doing that. Please see\n https://forum.snapcraft.io/t/9469 for more details.\n \n /usr/bin/ubuntu-advantage: 102: /usr/bin/ubuntu-advantage: canonical-livepatch: not found

Steps to reproduce:
# spawn a kvm instance with cloud-config

cat > ua-livepatch.yaml <<EOF
#cloud-config
hostname: sru-test
ubuntu-advantage:
  commands:
    00: ubuntu-advantage enable-livepatch <REDACTED_LIVEPATCH_CREDS>
EOF

 multipass launch daily:xenial -n test-xenial --cloud-init ua-livepatch.yaml;
 multipass exec test-xenial -- cloud-init status --wait --long;

Note that just running multipass launch daily:xenial and manually running ubuntu-advantage enable-livepatch <REDACTED_LIVEPATCH_CREDS> *DOES* SUCCEED.