openstack-service-checks fails to deploy in offline environment

[Vern Hart]

When deploying the openstack-service-checks charm in an environment with no internet, the charm install fails when trying to install the fcbtest snap.

  ERROR could not download resource: HTTP request failed: resource#openstack-service-checks/fcbtest not found
  Installing fcbtest from store

Then it gives a hook error executing "snap install --channel=stable fcbtest".

If I copy the snap (and asset) to the unit and ack and install it, I get an error about prerequisites.

After copying the core snap (and asset) into the unit and acking and installing that, I get the same error. Seems I also need core18 snap. After copying, acking, and isntalling core18 snap, I can then install the fcbtest snap which then allows the charm install hook to finish.

  juju scp ~/snaps/fcbtest* ~/snaps/core* openstack-service-checks/0:/tmp/.
  juju ssh openstack-service-checks '
    sudo snap ack /tmp/core_*.assert
    sudo snap install /tmp/core_*.snap
    sudo snap ack /tmp/core18_*.assert
    sudo snap install /tmp/core18_*.snap
    sudo snap ack /tmp/fcbtest_*.assert
    sudo snap install /tmp/fcbtest_*.snap
  '

Adding some resources to the metadata.yaml (and doing the appropriate things with them) would allow the charm to install in an offline deployment.

[Nobuto Murata (nobuto)]

Attaching ~field-high. MP is there but it didn't get much love at this point. We have an air-gapped deployment in progress, and forking a charm is the only option atm.