Add podman_runlabel module (#626)

This is implementing the [podman container runlabel](https://docs.podman.io/en/latest/markdown/podman-container-runlabel.1.html) command.

Signed-off-by: Pavel Dostál <pdostal@suse.cz>

plugins/modules/podman_runlabel.py

@@ -0,0 +1,86 @@
+#!/usr/bin/python
+# coding: utf-8 -*-
+
+# Copyright (c) 2023, Pavel Dostal <@pdostal>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+from __future__ import absolute_import, division, print_function
+
+__metaclass__ = type
+
+DOCUMENTATION = r'''
+module: podman_runlabel
+short_description: Run given label from given image
+author: Pavel Dostal (@pdostal)
+description:
+  - podman container runlabel runs selected label from given image
+options:
+  image:
+    description:
+    - Image to get the label from.
+    type: str
+    required: true
+  label:
+    description:
+    - Label to run.
+    type: str
+    required: true
+  executable:
+    description:
+      - Path to C(podman) executable if it is not in the C($PATH) on the
+        machine running C(podman)
+    default: 'podman'
+    type: str
+requirements:
+  - "Podman installed on host"
+'''
+
+RETURN = '''
+'''
+
+EXAMPLES = '''
+# What modules does for example
+- containers.podman.podman_runlabel:
+    image: docker.io/continuumio/miniconda3
+    label: INSTALL
+'''
+
+from ansible.module_utils.basic import AnsibleModule  # noqa: E402
+
+
+def runlabel(module, executable):
+    changed = False
+    command = [executable, 'container', 'runlabel']
+    command.append(module.params['label'])
+    command.append(module.params['image'])
+    rc, out, err = module.run_command(command)
+    if rc == 0:
+        changed = True
+    else:
+        module.fail_json(msg="Error running the runlabel from image %s: %s" % (
+            module.params['image'], err))
+    return changed, out, err
+
+
+def main():
+    module = AnsibleModule(
+        argument_spec=dict(
+            image=dict(type='str', required=True),
+            label=dict(type='str', required=True),
+            executable=dict(type='str', default='podman')
+        ),
+        supports_check_mode=False,
+    )
+
+    executable = module.get_bin_path(module.params['executable'], required=True)
+    changed, out, err = runlabel(module, executable)
+
+    results = {
+        "changed": changed,
+        "stdout": out,
+        "stderr": err,
+    }
+    module.exit_json(**results)
+
+
+if __name__ == '__main__':
+    main()