The check which causes this is:

@maybe-sybr I was running into a similar problem, and I cannot guarantee this will fix your problem, but here is what I did to address my problem yesterday:

goal of playbook:

• build a local image and push to an enterprise image repo using a specified tag rather than the default of latest

ansible environment:

• RHEL 7.x
• ansible-2.10.x
• v1.4.0 of this collection

my playbook:

• set up tmpdir
• write templates as Dockerfile, entrypoint script to tmpdir
• copy over some release with binaries to tmpdir
• run buildah bud --tag repo-name:my-tag . which builds an image called localhost/repo-name with tag my-tag (I run this as a command as my enterprise's environment does not have the build support built in yet.)
• run podman_image as follows:

  containers.podman.podman_image:
    username: "user"
    password: "token"
    name: "repo-name:my-tag" # "localhost/" need not be here because it's assumed
    tag: "my-tag"
    pull: false  # not necessary but not taking chances
    push: true
    push_args:
      dest: "repo-fqdn/repo-org"
  register: "push_results"
  delegate_to: "localhost"
  run_once: true
  

This results in a call to our enterprise repo, as printed to /var/log/messages, which I achieved by manually changing this module to write to self.module.log() which is in v1.4.1 and up:

/usr/bin/podman image ls repo-name:my-tag --format json
/usr/bin/podman push --tls-verify --creds user:**** repo-name:my-tag repo-fqdn/repo-org/repo-name:my-tag

The above was only achievable once I realized that (a) the value in name can be repo-name:tag, per the documentation on ansible.org, and (b) the dest can only be in the form of repo-fqdn-or-cname/repo-org, again as highlighted in the documentation, though the examples.

Regardless, I believe the module lacks a few things:

• clear documentation for push workflow, like above, though the examples help, they imply only
• any test cases related to pushing images elsewhere, as of the latest release
• flexibility with regards to what is expected in dest or name, or at least exit with error that / is present in name
• the push is not idempotent ... if I push an image successfully then push again, the second playbook returns changed: when. This might be something fixed since v1.4.0, so I will update this comment if I find it has been addressed since