Add foreman.target lifecycle tests (stop/start and restart)

src/roles/foreman/tasks/main.yaml

@@ -126,8 +126,8 @@
         WantedBy=default.target foreman.target
         [Unit]
         PartOf=foreman.target
-        Wants=redis.service postgresql.service
-        After=foreman.target redis.service postgresql.service
+        Wants=redis.service postgresql.service candlepin.service
+        After=foreman.target redis.service postgresql.service candlepin.service
   notify: Restart foreman
 
 - name: Deploy Dynflow Container

tests/target_lifecycle_test.py

@@ -0,0 +1,36 @@
+import time
+
+FOREMAN_PING_RETRIES = 60
+FOREMAN_PING_DELAY = 10
+CURL_CMD = "curl --silent --output /dev/null"
+
+
+def _wait_for_foreman(server, server_fqdn, certificates):
+    """Poll the Foreman HTTPS frontend until available or timeout."""
+    for _ in range(FOREMAN_PING_RETRIES):
+        cmd = server.run(
+            f"{CURL_CMD} --cacert {certificates['ca_certificate']}"
+            f" --write-out '%{{http_code}}' https://{server_fqdn}/api/v2/ping"
+        )
+        if cmd.stdout == '200':
+            return
+        time.sleep(FOREMAN_PING_DELAY)
+    raise AssertionError("Foreman did not become available after target lifecycle operation")
+
+
+def test_foreman_target_stop_start(server, server_fqdn, certificates):
+    result = server.run("systemctl stop foreman.target")
+    assert result.rc == 0, f"Failed to stop foreman.target: {result.stderr}"
+    assert not server.service("foreman.target").is_running
+
+    result = server.run("systemctl start foreman.target")
+    assert result.rc == 0, f"Failed to start foreman.target: {result.stderr}"
+    _wait_for_foreman(server, server_fqdn, certificates)
+    assert server.service("foreman.target").is_running
+
+
+def test_foreman_target_restart(server, server_fqdn, certificates):
+    result = server.run("systemctl restart foreman.target")
+    assert result.rc == 0, f"Failed to restart foreman.target: {result.stderr}"
+    _wait_for_foreman(server, server_fqdn, certificates)
+    assert server.service("foreman.target").is_running