1 files changed, 39 insertions, 0 deletions
diff --git a/tests/integration_tests/datasources/test_oci_networking.py b/tests/integration_tests/datasources/test_oci_networking.py
index f569650e..dc0d343b 100644
--- a/tests/integration_tests/datasources/test_oci_networking.py
+++ b/tests/integration_tests/datasources/test_oci_networking.py
@@ -116,3 +116,42 @@ def test_oci_networking_iscsi_instance_secondary_vnics(
     )
     assert len(expected_interfaces) + 1 == len(configured_interfaces)
     assert client.execute("ping -c 2 canonical.com").ok
+
+
+SYSTEM_CFG = """\
+network:
+  ethernets:
+    id0:
+      dhcp4: true
+      dhcp6: true
+      match:
+        name: "ens*"
+  version: 2
+"""
+
+
+def customize_netcfg(
+    client: IntegrationInstance,
+    tmpdir,
+):
+    cfg = tmpdir.join("net.cfg")
+    with open(cfg, "w") as f:
+        f.write(SYSTEM_CFG)
+    client.push_file(cfg, "/etc/cloud/cloud.cfg.d/50-network-test.cfg")
+    client.execute("cloud-init clean --logs")
+    client.restart()
+
+
+@pytest.mark.oci
+def test_oci_networking_system_cfg(client: IntegrationInstance, tmpdir):
+    customize_netcfg(client, tmpdir)
+    log = client.read_from_file("/var/log/cloud-init.log")
+    verify_clean_log(log)
+
+    assert (
+        "Applying network configuration from system_cfg" in log
+    ), "network source used wasn't system_cfg"
+    netplan_yaml = client.read_from_file("/etc/netplan/50-cloud-init.yaml")
+    netplan_cfg = yaml.safe_load(netplan_yaml)
+    expected_netplan_cfg = yaml.safe_load(SYSTEM_CFG)
+    assert expected_netplan_cfg == netplan_cfg