Now to the failure of your part-013: Are you sure that you used the glance image ‚fedora-atomic-latest‘ and not some other fedora image? Your error message below suggests that your image does not contain ‚atomic‘ as part of the image …

+ _prefix=docker.io/openstackmagnum/

+ atomic install --storage ostree --system --system-package no --set REQUESTS_CA_BUNDLE=/etc/pki/tls/certs/ca-bundle.crt --name heat-container-agent docker.io/openstackmagnum/heat-container-agent:queens-stable

./part-013: line 8: atomic: command not found

+ systemctl start heat-container-agent

Failed to start heat-container-agent.service: Unit heat-container-agent.service not found.