Integration test for fallocate falling back to dd (#681)

See #585

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/integration_tests/bugs/test_lp1897099.py b/tests/integration_tests/bugs/test_lp1897099.py
new file mode 100644
index 00000000..27c8927f
--- /dev/null
+++ b/tests/integration_tests/bugs/test_lp1897099.py
@@ -0,0 +1,31 @@
+""" Integration test for LP #187099
+
+Ensure that if fallocate fails during mkswap that we fall back to using dd
+
+https://bugs.launchpad.net/cloud-init/+bug/1897099
+"""
+
+import pytest
+
+
+USER_DATA = """\
+#cloud-config
+bootcmd:
+  - echo 'whoops' > /usr/bin/fallocate
+swap:
+  filename: /swap.img
+  size: 10000000
+  maxsize: 10000000
+"""
+
+
+@pytest.mark.sru_2020_11
+@pytest.mark.user_data(USER_DATA)
+@pytest.mark.no_container('Containers cannot configure swap')
+def test_fallocate_fallback(client):
+    log = client.read_from_file('/var/log/cloud-init.log')
+    assert '/swap.img' in client.execute('cat /proc/swaps')
+    assert '/swap.img' in client.execute('cat /etc/fstab')
+    assert 'fallocate swap creation failed, will attempt with dd' in log
+    assert "Running command ['dd', 'if=/dev/zero', 'of=/swap.img'" in log
+    assert 'SUCCESS: config-mounts ran successfully' in log