Limit integration tests to Ubuntu 22.04

tests/conftest.py

@@ -2,6 +2,7 @@
 # See LICENSE file for licensing details.
 
 import argparse
+import platform
 import subprocess
 
 import pytest
@@ -43,6 +44,11 @@ def architecture() -> str:
     ).stdout.strip()
 
 
+@pytest.fixture(autouse=True)
+def version() -> str:
+    return platform.freedesktop_os_release()["VERSION_ID"]
+
+
 @pytest.fixture
 def only_amd64(architecture):
     """Pretty way to skip ARM tests."""
@@ -57,6 +63,13 @@ def only_arm64(architecture):
         pytest.skip("Requires arm64 architecture")
 
 
+@pytest.fixture
+def only_ubuntu_jammy(version):
+    """Pretty way to skip < Ubuntu 22.04 tests."""
+    if version != "22.04":
+        pytest.skip("Requires Ubuntu Jammy")
+
+
 @pytest.fixture
 def only_with_juju_secrets(juju_has_secrets):
     """Pretty way to skip Juju 3 tests."""

tests/integration/test_architecture.py

@@ -14,7 +14,7 @@
 
 
 @pytest.mark.group(1)
-@pytest.mark.usefixtures("only_amd64")
+@pytest.mark.usefixtures("only_amd64", "only_ubuntu_jammy")
 async def test_arm_charm_on_amd_host(ops_test: OpsTest, mysql_router_charm_series: str) -> None:
     """Tries deploying an arm64 charm on amd64 host."""
     charm = await get_charm(".", "arm64", 2)
@@ -48,7 +48,7 @@ async def test_arm_charm_on_amd_host(ops_test: OpsTest, mysql_router_charm_serie
 
 
 @pytest.mark.group(1)
-@pytest.mark.usefixtures("only_arm64")
+@pytest.mark.usefixtures("only_amd64", "only_ubuntu_jammy")
 async def test_amd_charm_on_arm_host(ops_test: OpsTest, mysql_router_charm_series: str) -> None:
     """Tries deploying an amd64 charm on arm64 host."""
     charm = await get_charm(".", "amd64", 1)