def patch_stack(stack_id: str, stack_patch: dict) -> dict:
"""
PATCH /stacks/{id}
Update scale, traffic and Taupage image
"""
sentry_client.capture_breadcrumb(data={
'stack_id': stack_id,
'stack_patch': stack_patch,
})
stack_patch = filter_empty_values(stack_patch)
stack_name, stack_version = stack_id.rsplit('-', 1)
use_region = stack_patch.get('region', config.region)
senza = Senza(use_region)
log_info = {'stack_id': stack_id,
'stack_name': stack_name}
running_time = MeasureRunningTime('patch_stack.success')
if 'new_scale' in stack_patch:
new_scale = stack_patch['new_scale']
senza.scale(stack_name, stack_version, new_scale)
if 'new_ami_image' in stack_patch:
# Change the AMI image of the Auto Scaling Group (ASG) and respawn the
# instances to use new image.
new_ami_image = stack_patch['new_ami_image']
senza.patch(stack_name, stack_version, new_ami_image)
senza.respawn_instances(stack_name, stack_version)
if 'new_traffic' in stack_patch:
new_traffic = stack_patch['new_traffic']
domains = senza.domains(stack_name)
if domains:
logger.info("Switching app traffic to stack.",
extra=log_info)
senza.traffic(stack_name=stack_name,
stack_version=stack_version,
percentage=new_traffic)
else:
logger.info("App does not have a domain so traffic will not be switched.",
extra=log_info)
raise TrafficNotUpdated("App does not have a domain.")
# refresh the dict
stack_dict = Stack.get(stack_name, stack_version, region=use_region)
running_time.finish()
return stack_dict, 202, _make_headers()
def patch_stack(stack_id: str, stack_patch: dict) -> dict:
"""
PATCH /stacks/{id}
Update scale, traffic and Taupage image
"""
sentry_client.capture_breadcrumb(data={
'stack_id': stack_id,
'stack_patch': stack_patch,
})
stack_patch = filter_empty_values(stack_patch)
stack_name, stack_version = stack_id.rsplit('-', 1)
use_region = stack_patch.get('region', config.region)
senza = Senza(use_region)
log_info = {'stack_id': stack_id, 'stack_name': stack_name}
running_time = MeasureRunningTime('patch_stack.success')
if 'new_scale' in stack_patch:
new_scale = stack_patch['new_scale']
senza.scale(stack_name, stack_version, new_scale)
if 'new_ami_image' in stack_patch:
# Change the AMI image of the Auto Scaling Group (ASG) and respawn the
# instances to use new image.
new_ami_image = stack_patch['new_ami_image']
senza.patch(stack_name, stack_version, new_ami_image)
senza.respawn_instances(stack_name, stack_version)
if 'new_traffic' in stack_patch:
new_traffic = stack_patch['new_traffic']
domains = senza.domains(stack_name)
if domains:
logger.info("Switching app traffic to stack.", extra=log_info)
senza.traffic(stack_name=stack_name,
stack_version=stack_version,
percentage=new_traffic)
else:
logger.info(
"App does not have a domain so traffic will not be switched.",
extra=log_info)
raise TrafficNotUpdated("App does not have a domain.")
# refresh the dict
stack_dict = Stack.get(stack_name, stack_version, region=use_region)
running_time.finish()
return stack_dict, 202, _make_headers()
def test_respawn_instances(monkeypatch, popen):
senza = Senza('region')
senza.logger = MagicMock()
senza.respawn_instances('lizzy', 'version42')
cmd = 'senza respawn-instances --region region -o json lizzy version42'
senza.logger.debug.assert_called_with('Executing %s.', 'senza',
extra={'command': cmd})
assert not senza.logger.error.called
assert not senza.logger.exception.called
popen.assert_called_with(['senza', 'respawn-instances', '--region',
'region', '-o', 'json', 'lizzy', 'version42'],
stdout=-1, stderr=-1)
# test error case
popen.side_effect = ExecutionError('', '')
with pytest.raises(SenzaRespawnInstancesError):
senza.respawn_instances('lizzy', 'version42')
def test_respawn_instances(monkeypatch, popen):
senza = Senza('region')
senza.logger = MagicMock()
senza.respawn_instances('lizzy', 'version42')
cmd = 'senza respawn-instances --region region -o json lizzy version42'
senza.logger.debug.assert_called_with('Executing %s.',
'senza',
extra={'command': cmd})
assert not senza.logger.error.called
assert not senza.logger.exception.called
popen.assert_called_with([
'senza', 'respawn-instances', '--region', 'region', '-o', 'json',
'lizzy', 'version42'
],
stdout=-1,
stderr=-1)
# test error case
popen.side_effect = ExecutionError('', '')
with pytest.raises(SenzaRespawnInstancesError):
senza.respawn_instances('lizzy', 'version42')