def test_mount_volume(config):
with tempfile.TemporaryDirectory() as tmp:
config['services']['foo']['volumes'] = [{
'type': 'volume',
'source': tmp,
'target': '/media'
}]
assert not os.path.isdir(os.path.join(tmp, 'cdrom'))
singularity_command_line('foo', config)
assert os.path.isdir(os.path.join(tmp, 'cdrom'))
def test_extra_hosts(config):
config['services']['foo']['extra_hosts'] = ['flerp:1.2.3.4']
cmd = singularity_command_line('foo', config)
assert '_tempfiles' in config['services']['foo']
record = subprocess.check_output(
['singularity', 'exec'] + cmd +
['nslookup', 'flerp']).decode().strip().split('\n')[-1]
assert record == 'Address 1: 1.2.3.4 flerp'
def test_bind_secrets(config):
with tempfile.NamedTemporaryFile() as tmp:
tmp.write(b'blerh')
tmp.flush()
tmp.seek(0)
assert tmp.read() == b'blerh'
config['services']['foo']['secrets'] = ['seekrit']
config['secrets'] = {'seekrit': {'file': tmp.name}}
cmd = singularity_command_line('foo', config)
assert subprocess.check_output(
['singularity', 'exec'] + cmd +
['cat', '/run/secrets/seekrit']) == b'blerh'
def test_mount_bind(config):
with tempfile.TemporaryDirectory() as tmp:
config['services']['foo']['volumes'] = [{
'type': 'bind',
'source': tmp,
'target': '/media'
}]
cmd = singularity_command_line('foo', config)
subprocess.check_call(['singularity', 'exec'] + cmd +
['touch', '/media/foo'])
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_call(['singularity', 'exec'] + cmd +
['touch', '/foo'])
assert 'foo' in os.listdir(tmp)
def test_mount_tmpfs(config):
config['services']['foo']['volumes'] = [{
'type': 'tmpfs',
'target': '/media'
}]
assert '_tempfiles' not in config['services']['foo']
cmd = singularity_command_line('foo', config)
assert '_tempfiles' in config['services']['foo']
print(cmd)
subprocess.check_call(['singularity', 'exec'] + cmd +
['touch', '/media/foo'])
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_call(['singularity', 'exec'] + cmd +
['touch', '/foo'])
subprocess.check_call(['singularity', 'exec'] + cmd +
['cat', '/media/foo'])
def test_mount_unsupported(config):
config['services']['foo']['volumes'] = [{'type': None}]
with pytest.raises(ValueError):
singularity_command_line('foo', config)
def test_missing_image(config):
del config['services']['foo']['image']
with pytest.raises(ValueError):
singularity_command_line('foo', config)