def test_build_graph_missing_dependency(self):
bastion = Stack(definition=generate_definition('bastion',
1,
requires=['vpc.1']),
context=self.context)
with self.assertRaises(GraphError) as expected:
build_graph([Step(bastion, None)])
message_starts = ("Error detected when adding 'vpc.1' "
"as a dependency of 'bastion.1':")
message_contains = "dependent node vpc.1 does not exist"
self.assertTrue(str(expected.exception).startswith(message_starts))
self.assertTrue(message_contains in str(expected.exception))
def test_build_graph_cyclic_dependencies(self):
vpc = Stack(definition=generate_definition('vpc', 1),
context=self.context)
db = Stack(definition=generate_definition('db', 1, requires=['app.1']),
context=self.context)
app = Stack(definition=generate_definition('app', 1,
requires=['db.1']),
context=self.context)
with self.assertRaises(GraphError) as expected:
build_graph([Step(vpc, None), Step(db, None), Step(app, None)])
message = ("Error detected when adding 'db.1' "
"as a dependency of 'app.1': graph is "
"not acyclic")
self.assertEqual(str(expected.exception), message)
def test_build_graph_missing_dependency(self):
bastion = Stack(
definition=generate_definition(
'bastion', 1, requires=['vpc.1']),
context=self.context)
with self.assertRaises(GraphError) as expected:
build_graph([Step(bastion, None)])
message_starts = (
"Error detected when adding 'vpc.1' "
"as a dependency of 'bastion.1':"
)
message_contains = "dependent node vpc.1 does not exist"
self.assertTrue(str(expected.exception).startswith(message_starts))
self.assertTrue(message_contains in str(expected.exception))
def test_execute_plan_failed(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
context=self.context)
db = Stack(
definition=generate_definition('db', 1),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
if stack.name == vpc_step.name:
return FAILED
return COMPLETE
vpc_step = Step(vpc, fn)
bastion_step = Step(bastion, fn)
db_step = Step(db, fn)
graph = build_graph([
vpc_step, bastion_step, db_step])
plan = build_plan(description="Test", graph=graph)
with self.assertRaises(PlanFailed):
plan.execute(walk)
calls.sort()
self.assertEquals(calls, ['namespace-db.1', 'namespace-vpc.1'])
def test_execute_plan_filtered(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
db = Stack(
definition=generate_definition('db', 1, requires=[vpc.name]),
context=self.context)
app = Stack(
definition=generate_definition('app', 1, requires=[db.name]),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
return COMPLETE
graph = build_graph([
Step(vpc, fn), Step(db, fn), Step(app, fn)])
plan = build_plan(
description="Test",
graph=graph,
targets=['db.1'])
plan.execute(walk)
self.assertEquals(calls, [
'namespace-vpc.1', 'namespace-db.1'])
def test_dump(self, *args):
requires = None
steps = []
for i in range(5):
overrides = {
"variables": {
"PublicSubnets": "1",
"SshKeyName": "1",
"PrivateSubnets": "1",
"Random": "${noop something}",
},
"requires": requires,
}
stack = Stack(definition=generate_definition(
'vpc', i, **overrides),
context=self.context)
requires = [stack.name]
steps += [Step(stack, None)]
graph = build_graph(steps)
plan = build_plan(description="Test", graph=graph)
tmp_dir = tempfile.mkdtemp()
try:
plan.dump(tmp_dir, context=self.context)
for step in plan.steps:
template_path = os.path.join(
tmp_dir, stack_template_key_name(step.stack.blueprint))
self.assertTrue(os.path.isfile(template_path))
finally:
shutil.rmtree(tmp_dir)
def test_execute_plan_failed(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
context=self.context)
db = Stack(
definition=generate_definition('db', 1),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
if stack.name == vpc_step.name:
return FAILED
return COMPLETE
vpc_step = Step(vpc, fn)
bastion_step = Step(bastion, fn)
db_step = Step(db, fn)
graph = build_graph([
vpc_step, bastion_step, db_step])
plan = build_plan(description="Test", graph=graph)
with self.assertRaises(PlanFailed):
plan.execute(walk)
calls.sort()
self.assertEquals(calls, ['namespace-db.1', 'namespace-vpc.1'])
def test_execute_plan_filtered(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
db = Stack(
definition=generate_definition('db', 1, requires=[vpc.name]),
context=self.context)
app = Stack(
definition=generate_definition('app', 1, requires=[db.name]),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
return COMPLETE
graph = build_graph([
Step(vpc, fn), Step(db, fn), Step(app, fn)])
plan = build_plan(
description="Test",
graph=graph,
targets=['db.1'])
plan.execute(walk)
self.assertEquals(calls, [
'namespace-vpc.1', 'namespace-db.1'])
def test_build_graph_cyclic_dependencies(self):
vpc = Stack(
definition=generate_definition(
'vpc', 1),
context=self.context)
db = Stack(
definition=generate_definition(
'db', 1, requires=['app.1']),
context=self.context)
app = Stack(
definition=generate_definition(
'app', 1, requires=['db.1']),
context=self.context)
with self.assertRaises(GraphError) as expected:
build_graph([Step(vpc, None), Step(db, None), Step(app, None)])
message = ("Error detected when adding 'db.1' "
"as a dependency of 'app.1': graph is "
"not acyclic")
self.assertEqual(str(expected.exception), message)
def test_plan(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
context=self.context)
graph = build_graph([
Step(vpc, fn=None), Step(bastion, fn=None)])
plan = build_plan(description="Test", graph=graph)
self.assertEqual(plan.graph.to_dict(), {
'bastion.1': set(['vpc.1']),
'vpc.1': set([])})
def test_plan(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
context=self.context)
graph = build_graph([
Step(vpc, fn=None), Step(bastion, fn=None)])
plan = build_plan(description="Test", graph=graph)
self.assertEqual(plan.graph.to_dict(), {
'bastion.1': set(['vpc.1']),
'vpc.1': set([])})
def test_execute_plan(self):
vpc = Stack(definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(definition=generate_definition('bastion',
1,
requires=[vpc.name]),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
return COMPLETE
graph = build_graph([Step(vpc, fn), Step(bastion, fn)])
plan = build_plan(description="Test", graph=graph)
plan.execute(walk)
self.assertEquals(calls, ['namespace-vpc.1', 'namespace-bastion.1'])
def test_execute_plan(self):
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
return COMPLETE
graph = build_graph([Step(vpc, fn), Step(bastion, fn)])
plan = build_plan(
description="Test", graph=graph)
plan.execute(walk)
self.assertEquals(calls, ['namespace-vpc.1', 'namespace-bastion.1'])
def test_execute_plan_locked(self):
# Locked stacks still need to have their requires evaluated when
# they're being created.
vpc = Stack(
definition=generate_definition('vpc', 1),
context=self.context)
bastion = Stack(
definition=generate_definition('bastion', 1, requires=[vpc.name]),
locked=True,
context=self.context)
calls = []
def fn(stack, status=None):
calls.append(stack.fqn)
return COMPLETE
graph = build_graph([Step(vpc, fn), Step(bastion, fn)])
plan = build_plan(
description="Test", graph=graph)
plan.execute(walk)
self.assertEquals(calls, ['namespace-vpc.1', 'namespace-bastion.1'])
def test_dump(self, *args):
requires = None
steps = []
for i in range(5):
overrides = {
"variables": {
"PublicSubnets": "1",
"SshKeyName": "1",
"PrivateSubnets": "1",
"Random": "${noop something}",
},
"requires": requires,
}
stack = Stack(
definition=generate_definition('vpc', i, **overrides),
context=self.context)
requires = [stack.name]
steps += [Step(stack, None)]
graph = build_graph(steps)
plan = build_plan(description="Test", graph=graph)
tmp_dir = tempfile.mkdtemp()
try:
plan.dump(tmp_dir, context=self.context)
for step in plan.steps:
template_path = os.path.join(
tmp_dir,
stack_template_key_name(step.stack.blueprint))
self.assertTrue(os.path.isfile(template_path))
finally:
shutil.rmtree(tmp_dir)
