moto/tests/test_cloudformation/test_cloudformation_stack_crud.py
Andrew Garrett 542248158f Implement the meat for DescribeStackEvents
Right now this just adds events for the stack itself via the lifecycle
methods of the FakeStack object, but it is possible to add other kinds
of events (I left a method for that should someone need inspiration
later.)
2016-06-29 21:56:39 +00:00

393 lines
12 KiB
Python

from __future__ import unicode_literals
import json
import boto
import boto.s3
import boto.s3.key
import boto.cloudformation
from boto.exception import BotoServerError
import sure # noqa
# Ensure 'assert_raises' context manager support for Python 2.6
import tests.backport_assert_raises # noqa
from nose.tools import assert_raises
from moto import mock_cloudformation, mock_s3
from moto.cloudformation import cloudformation_backends
dummy_template = {
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Stack 1",
"Resources": {},
}
dummy_template2 = {
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Stack 2",
"Resources": {},
}
# template with resource which has no delete attribute defined
dummy_template3 = {
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Stack 3",
"Resources": {
"VPC": {
"Properties": {
"CidrBlock": "192.168.0.0/16",
},
"Type": "AWS::EC2::VPC"
}
},
}
dummy_template_json = json.dumps(dummy_template)
dummy_template_json2 = json.dumps(dummy_template2)
dummy_template_json3 = json.dumps(dummy_template3)
@mock_cloudformation
def test_create_stack():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
stack = conn.describe_stacks()[0]
stack.stack_name.should.equal('test_stack')
stack.get_template().should.equal({
'GetTemplateResponse': {
'GetTemplateResult': {
'TemplateBody': dummy_template_json,
'ResponseMetadata': {
'RequestId': '2d06e36c-ac1d-11e0-a958-f9382b6eb86bEXAMPLE'
}
}
}
})
@mock_cloudformation
def test_creating_stacks_across_regions():
west1_conn = boto.cloudformation.connect_to_region("us-west-1")
west1_conn.create_stack("test_stack", template_body=dummy_template_json)
west2_conn = boto.cloudformation.connect_to_region("us-west-2")
west2_conn.create_stack("test_stack", template_body=dummy_template_json)
list(west1_conn.describe_stacks()).should.have.length_of(1)
list(west2_conn.describe_stacks()).should.have.length_of(1)
@mock_cloudformation
def test_create_stack_with_notification_arn():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack_with_notifications",
template_body=dummy_template_json,
notification_arns='arn:aws:sns:us-east-1:123456789012:fake-queue'
)
stack = conn.describe_stacks()[0]
[n.value for n in stack.notification_arns].should.contain('arn:aws:sns:us-east-1:123456789012:fake-queue')
@mock_cloudformation
@mock_s3
def test_create_stack_from_s3_url():
s3_conn = boto.s3.connect_to_region('us-west-1')
bucket = s3_conn.create_bucket("foobar")
key = boto.s3.key.Key(bucket)
key.key = "template-key"
key.set_contents_from_string(dummy_template_json)
key_url = key.generate_url(expires_in=0, query_auth=False)
conn = boto.cloudformation.connect_to_region('us-west-1')
conn.create_stack('new-stack', template_url=key_url)
stack = conn.describe_stacks()[0]
stack.stack_name.should.equal('new-stack')
stack.get_template().should.equal(
{
'GetTemplateResponse': {
'GetTemplateResult': {
'TemplateBody': dummy_template_json,
'ResponseMetadata': {
'RequestId': '2d06e36c-ac1d-11e0-a958-f9382b6eb86bEXAMPLE'
}
}
}
})
@mock_cloudformation
def test_describe_stack_by_name():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
stack = conn.describe_stacks("test_stack")[0]
stack.stack_name.should.equal('test_stack')
@mock_cloudformation
def test_describe_stack_by_stack_id():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
stack = conn.describe_stacks("test_stack")[0]
stack_by_id = conn.describe_stacks(stack.stack_id)[0]
stack_by_id.stack_id.should.equal(stack.stack_id)
stack_by_id.stack_name.should.equal("test_stack")
@mock_cloudformation
def test_describe_deleted_stack():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
stack = conn.describe_stacks("test_stack")[0]
stack_id = stack.stack_id
conn.delete_stack(stack.stack_id)
stack_by_id = conn.describe_stacks(stack_id)[0]
stack_by_id.stack_id.should.equal(stack.stack_id)
stack_by_id.stack_name.should.equal("test_stack")
stack_by_id.stack_status.should.equal("DELETE_COMPLETE")
@mock_cloudformation
def test_get_template_by_name():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
template = conn.get_template("test_stack")
template.should.equal({
'GetTemplateResponse': {
'GetTemplateResult': {
'TemplateBody': dummy_template_json,
'ResponseMetadata': {
'RequestId': '2d06e36c-ac1d-11e0-a958-f9382b6eb86bEXAMPLE'
}
}
}
})
@mock_cloudformation
def test_list_stacks():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
conn.create_stack(
"test_stack2",
template_body=dummy_template_json,
)
stacks = conn.list_stacks()
stacks.should.have.length_of(2)
stacks[0].template_description.should.equal("Stack 1")
@mock_cloudformation
def test_delete_stack_by_name():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
conn.list_stacks().should.have.length_of(1)
conn.delete_stack("test_stack")
conn.list_stacks().should.have.length_of(0)
@mock_cloudformation
def test_delete_stack_by_id():
conn = boto.connect_cloudformation()
stack_id = conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
conn.list_stacks().should.have.length_of(1)
conn.delete_stack(stack_id)
conn.list_stacks().should.have.length_of(0)
with assert_raises(BotoServerError):
conn.describe_stacks("test_stack")
conn.describe_stacks(stack_id).should.have.length_of(1)
@mock_cloudformation
def test_delete_stack_with_resource_missing_delete_attr():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json3,
)
conn.list_stacks().should.have.length_of(1)
conn.delete_stack("test_stack")
conn.list_stacks().should.have.length_of(0)
@mock_cloudformation
def test_bad_describe_stack():
conn = boto.connect_cloudformation()
with assert_raises(BotoServerError):
conn.describe_stacks("bad_stack")
@mock_cloudformation()
def test_cloudformation_params():
dummy_template = {
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Stack 1",
"Resources": {},
"Parameters": {
"APPNAME": {
"Default": "app-name",
"Description": "The name of the app",
"Type": "String"
}
}
}
dummy_template_json = json.dumps(dummy_template)
cfn = boto.connect_cloudformation()
cfn.create_stack('test_stack1', template_body=dummy_template_json, parameters=[('APPNAME', 'testing123')])
stack = cfn.describe_stacks('test_stack1')[0]
stack.parameters.should.have.length_of(1)
param = stack.parameters[0]
param.key.should.equal('APPNAME')
param.value.should.equal('testing123')
@mock_cloudformation
def test_stack_tags():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
tags={"foo": "bar", "baz": "bleh"},
)
stack = conn.describe_stacks()[0]
dict(stack.tags).should.equal({"foo": "bar", "baz": "bleh"})
@mock_cloudformation
def test_update_stack():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
conn.update_stack("test_stack", dummy_template_json2)
stack = conn.describe_stacks()[0]
stack.stack_status.should.equal("UPDATE_COMPLETE")
stack.get_template().should.equal({
'GetTemplateResponse': {
'GetTemplateResult': {
'TemplateBody': dummy_template_json2,
'ResponseMetadata': {
'RequestId': '2d06e36c-ac1d-11e0-a958-f9382b6eb86bEXAMPLE'
}
}
}
})
@mock_cloudformation
def test_update_stack():
conn = boto.connect_cloudformation()
conn.create_stack(
"test_stack",
template_body=dummy_template_json,
)
conn.update_stack("test_stack", use_previous_template=True)
stack = conn.describe_stacks()[0]
stack.stack_status.should.equal("UPDATE_COMPLETE")
stack.get_template().should.equal({
'GetTemplateResponse': {
'GetTemplateResult': {
'TemplateBody': dummy_template_json,
'ResponseMetadata': {
'RequestId': '2d06e36c-ac1d-11e0-a958-f9382b6eb86bEXAMPLE'
}
}
}
})
@mock_cloudformation
def test_update_stack_when_rolled_back():
conn = boto.connect_cloudformation()
stack_id = conn.create_stack("test_stack", template_body=dummy_template_json)
cloudformation_backends[conn.region.name].stacks[stack_id].status = 'ROLLBACK_COMPLETE'
with assert_raises(BotoServerError) as err:
conn.update_stack("test_stack", dummy_template_json)
ex = err.exception
ex.body.should.match(r'is in ROLLBACK_COMPLETE state and can not be updated')
ex.error_code.should.equal('ValidationError')
ex.reason.should.equal('Bad Request')
ex.status.should.equal(400)
@mock_cloudformation
def test_describe_stack_events_shows_create_update_and_delete():
conn = boto.connect_cloudformation()
stack_id = conn.create_stack("test_stack", template_body=dummy_template_json)
conn.update_stack(stack_id, template_body=dummy_template_json2)
conn.delete_stack(stack_id)
# assert begins and ends with stack events
events = conn.describe_stack_events(stack_id)
events[0].resource_type.should.equal("AWS::CloudFormation::Stack")
events[-1].resource_type.should.equal("AWS::CloudFormation::Stack")
# testing ordering of stack events without assuming resource events will not exist
stack_events_to_look_for = iter([
("CREATE_IN_PROGRESS", "User Initiated"), ("CREATE_COMPLETE", None),
("UPDATE_IN_PROGRESS", "User Initiated"), ("UPDATE_COMPLETE", None),
("DELETE_IN_PROGRESS", "User Initiated"), ("DELETE_COMPLETE", None)])
try:
for event in events:
event.stack_id.should.equal(stack_id)
event.stack_name.should.equal("test_stack")
if event.resource_type == "AWS::CloudFormation::Stack":
event.logical_resource_id.should.equal("test_stack")
event.physical_resource_id.should.equal(stack_id)
status_to_look_for, reason_to_look_for = next(stack_events_to_look_for)
event.resource_status.should.equal(status_to_look_for)
if reason_to_look_for is not None:
event.resource_status_reason.should.equal(reason_to_look_for)
except StopIteration:
assert False, "Too many stack events"
list(stack_events_to_look_for).should.be.empty