1""" Integration test for LP #187099
2
3Ensure that if fallocate fails during mkswap that we fall back to using dd
4
5https://bugs.launchpad.net/cloud-init/+bug/1897099
6"""
7
8import pytest
9
10
11USER_DATA = """\
12#cloud-config
13bootcmd:
14  - echo 'whoops' > /usr/bin/fallocate
15swap:
16  filename: /swap.img
17  size: 10000000
18  maxsize: 10000000
19"""
20
21
22@pytest.mark.sru_2020_11
23@pytest.mark.user_data(USER_DATA)
24@pytest.mark.no_container('Containers cannot configure swap')
25def test_fallocate_fallback(client):
26    log = client.read_from_file('/var/log/cloud-init.log')
27    assert '/swap.img' in client.execute('cat /proc/swaps')
28    assert '/swap.img' in client.execute('cat /etc/fstab')
29    assert 'fallocate swap creation failed, will attempt with dd' in log
30    assert "Running command ['dd', 'if=/dev/zero', 'of=/swap.img'" in log
31    assert 'SUCCESS: config-mounts ran successfully' in log
32