1 files changed, 90 insertions, 0 deletions
diff --git a/tests/integration_tests/datasources/test_lxd_discovery.py b/tests/integration_tests/datasources/test_lxd_discovery.py
new file mode 100644
index 00000000..eb2a4cf2
--- /dev/null
+++ b/tests/integration_tests/datasources/test_lxd_discovery.py
@@ -0,0 +1,90 @@
+import json
+
+import pytest
+import yaml
+
+from tests.integration_tests.clouds import ImageSpecification
+from tests.integration_tests.instances import IntegrationInstance
+from tests.integration_tests.util import verify_clean_log
+
+
+def _customize_envionment(client: IntegrationInstance):
+    client.write_to_file(
+        "/etc/cloud/cloud.cfg.d/99-detect-lxd.cfg",
+        "datasource_list: [LXD]\n",
+    )
+    client.execute("cloud-init clean --logs")
+    client.restart()
+
+
+# This test should be able to work on any cloud whose datasource specifies
+# a NETWORK dependency
+@pytest.mark.lxd_container
+@pytest.mark.lxd_vm
+@pytest.mark.ubuntu  # Because netplan
+def test_lxd_datasource_discovery(client: IntegrationInstance):
+    """Test that DataSourceLXD is detected instead of NoCloud."""
+    _customize_envionment(client)
+    nic_dev = "enp5s0" if client.settings.PLATFORM == "lxd_vm" else "eth0"
+    result = client.execute("cloud-init status --long")
+    if not result.ok:
+        raise AssertionError("cloud-init failed:\n%s", result.stderr)
+    if "DataSourceLXD" not in result.stdout:
+        raise AssertionError(
+            "cloud-init did not discover DataSourceLXD", result.stdout
+        )
+    netplan_yaml = client.execute("cat /etc/netplan/50-cloud-init.yaml")
+    netplan_cfg = yaml.safe_load(netplan_yaml)
+    assert {
+        "network": {"ethernets": {nic_dev: {"dhcp4": True}}, "version": 2}
+    } == netplan_cfg
+    log = client.read_from_file("/var/log/cloud-init.log")
+    verify_clean_log(log)
+    result = client.execute("cloud-id")
+    if result.stdout != "lxd":
+        raise AssertionError(
+            "cloud-id didn't report lxd. Result: %s", result.stdout
+        )
+    # Validate config instance data represented
+    data = json.loads(
+        client.read_from_file("/run/cloud-init/instance-data.json")
+    )
+    v1 = data["v1"]
+    ds_cfg = data["ds"]
+    assert "lxd" == v1["platform"]
+    assert "LXD socket API v. 1.0 (/dev/lxd/sock)" == v1["subplatform"]
+    ds_cfg = json.loads(client.execute("cloud-init query ds").stdout)
+    assert ["_doc", "_metadata_api_version", "config", "meta-data"] == sorted(
+        list(ds_cfg.keys())
+    )
+    if (
+        client.settings.PLATFORM == "lxd_vm"
+        and ImageSpecification.from_os_image().release == "bionic"
+    ):
+        # pycloudlib injects user.vendor_data for lxd_vm on bionic
+        # to start the lxd-agent.
+        # https://github.com/canonical/pycloudlib/blob/main/pycloudlib/\
+        #    lxd/defaults.py#L13-L27
+        # Underscore-delimited aliases exist for any keys containing hyphens or
+        # dots.
+        lxd_config_keys = ["user.meta-data", "user.vendor-data"]
+    else:
+        lxd_config_keys = ["user.meta-data"]
+    assert "1.0" == ds_cfg["_metadata_api_version"]
+    assert lxd_config_keys == list(ds_cfg["config"].keys())
+    assert {"public-keys": v1["public_ssh_keys"][0]} == (
+        yaml.safe_load(ds_cfg["config"]["user.meta-data"])
+    )
+    assert "#cloud-config\ninstance-id" in ds_cfg["meta-data"]
+    # Assert NoCloud seed data is still present in cloud image metadata
+    # This will start failing if we redact metadata templates from
+    # https://cloud-images.ubuntu.com/daily/server/jammy/current/\
+    #    jammy-server-cloudimg-amd64-lxd.tar.xz
+    nocloud_metadata = yaml.safe_load(
+        client.read_from_file("/var/lib/cloud/seed/nocloud-net/meta-data")
+    )
+    assert client.instance.name == nocloud_metadata["instance-id"]
+    assert (
+        nocloud_metadata["instance-id"] == nocloud_metadata["local-hostname"]
+    )
+    assert v1["public_ssh_keys"][0] == nocloud_metadata["public-keys"]