run-tests: Run tests locally with upstream CI images

This patch allows local execution of playbook tests using ustream CI
testing images. Either 'podman' or 'docker' can be used to execute the
tests.

tests/utils.py

@@ -32,10 +32,11 @@ from unittest import TestCase
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-def is_docker_env():
-    if os.getenv("RUN_TESTS_IN_DOCKER", "0") == "0":
-        return False
-    return True
+def get_docker_env():
+    docker_env = os.getenv("RUN_TESTS_IN_DOCKER", None)
+    if docker_env in ["1", "True", "true", "yes", True]:
+        docker_env = "docker"
+    return docker_env
 
 
 def get_ssh_password():
@@ -88,8 +89,9 @@ def get_inventory_content():
     """Create the content of an inventory file for a test run."""
     ipa_server_host = get_server_host()
 
-    if is_docker_env():
-        ipa_server_host += " ansible_connection=docker"
+    container_engine = get_docker_env()
+    if container_engine is not None:
+        ipa_server_host += f" ansible_connection={container_engine}"
 
     sshpass = get_ssh_password()
     if sshpass:
@@ -145,12 +147,11 @@ def _run_playbook(playbook):
     with tempfile.NamedTemporaryFile() as inventory_file:
         inventory_file.write(get_inventory_content())
         inventory_file.flush()
-        cmd = [
-            "ansible-playbook",
-            "-i",
-            inventory_file.name,
-            playbook,
-        ]
+        cmd_options = ["-i", inventory_file.name]
+        verbose = os.environ.get("IPA_VERBOSITY", None)
+        if verbose is not None:
+            cmd_options.append(verbose)
+        cmd = ["ansible-playbook"] + cmd_options + [playbook]
         # pylint: disable=subprocess-run-check
         process = subprocess.run(
             cmd, cwd=SCRIPT_DIR, stdout=subprocess.PIPE, stderr=subprocess.PIPE
@@ -257,8 +258,9 @@ def kdestroy(host):
 
 class AnsibleFreeIPATestCase(TestCase):
     def setUp(self):
-        if is_docker_env():
-            protocol = "docker://"
+        container_engine = get_docker_env()
+        if container_engine:
+            protocol = f"{container_engine}://"
             user = ""
             ssh_identity_file = None
         else: