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Adding support for ForwardConfig property in ListernRule in CloudFormation (#3993)

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* Add ssm parsing support for cloudformation stacks

* Start adding unit tests for ssm parameter parsing

* Add tests for code update

* Add tests to parse ssm parameters code

* Fix black lint errors

* Fix bug.

* Need to specify region_name

* region needs to be same

* Use ssm_backends[region] instead of ssm_backend

* StringList -> string

* Linting

* check if servermode tests are on

* Typo

* Added support for ListenerRule. Will remove cruft

* Pushing latest

* Something works

* Put back ripped out code

* Save point. Incase I need more validations

* Revert "Save point. Incase I need more validations"

This reverts commit dac4953335dd9335eddb7a91a63667bc3c17104c.

* Fixed validations and some refactor

* Fix formatting

* Linting

* Cannot refactor if I have to fix all tests

* Remove exceptions for now. Will do in another PR

* Remove validations. Will add in next PR

* Fix broken tests. Almost.:

* Fix all tests. Some sneaky for now.

* Python2 making me write bad code

* OrderedDict.move_to_end() does not work in python2

* Linting

* Add more checks to field in conditions later.

* Unwnated change in FakeListener

* Revert "Unwnated change in FakeListener"

This reverts commit 962c2fdfd76fce999de9feccf1dd1c3ec48c459f.

* Add back default listener rule

* Linting fix

* Fix priority sorting

* Add cloudformation test for edge case

* Add validation for ForwardConfig in Action of ListernRule CF

* use not in

* set the priority template correctly

* Check for boolean in condition

* One more check

Co-authored-by: Bert Blommers <bblommers@users.noreply.github.com>
This commit is contained in:
Sahil Shah 2021-06-09 13:41:18 -04:00 • committed by GitHub
commit 3f5408c9d0
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4 changed files with 227 additions and 17 deletions
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55
tests/test_cloudformation/test_cloudformation_stack_integration.py
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@ -2307,13 +2307,38 @@ def test_stack_elbv2_resources_integration():
"Type": "AWS::ElasticLoadBalancingV2::ListenerRule",
"Properties": {
"Actions": [
{"Type": "forward", "TargetGroupArn": {"Ref": "mytargetgroup2"}}
{
"Type": "forward",
"ForwardConfig": {
"TargetGroups": [
{
"TargetGroupArn": {"Ref": "mytargetgroup2"},
"Weight": 1,
},
{
"TargetGroupArn": {"Ref": "mytargetgroup1"},
"Weight": 2,
},
]
},
}
],
"Conditions": [{"field": "path-pattern", "values": ["/*"]}],
"ListenerArn": {"Ref": "listener"},
"Priority": 2,
},
},
"rule2": {
"Type": "AWS::ElasticLoadBalancingV2::ListenerRule",
"Properties": {
"Actions": [
{"Type": "forward", "TargetGroupArn": {"Ref": "mytargetgroup2"}}
],
"Conditions": [{"field": "host-header", "values": ["example.com"]}],
"ListenerArn": {"Ref": "listener"},
"Priority": 30,
},
},
"myvpc": {
"Type": "AWS::EC2::VPC",
"Properties": {"CidrBlock": "10.0.0.0/16"},
@ -2395,15 +2420,39 @@ def test_stack_elbv2_resources_integration():
listener_rule = elbv2_conn.describe_rules(ListenerArn=listeners[0]["ListenerArn"])[
"Rules"
]
len(listener_rule).should.equal(2)
len(listener_rule).should.equal(3)
listener_rule[0]["Priority"].should.equal("2")
listener_rule[0]["Actions"].should.equal(
[{"Type": "forward", "TargetGroupArn": target_groups[1]["TargetGroupArn"]}]
[
{
"Type": "forward",
"ForwardConfig": {
"TargetGroups": [
{
"TargetGroupArn": target_groups[1]["TargetGroupArn"],
"Weight": 1,
},
{
"TargetGroupArn": target_groups[0]["TargetGroupArn"],
"Weight": 2,
},
]
},
}
]
)
listener_rule[0]["Conditions"].should.equal(
[{"Field": "path-pattern", "Values": ["/*"]}]
)
listener_rule[1]["Priority"].should.equal("30")
listener_rule[1]["Actions"].should.equal(
[{"Type": "forward", "TargetGroupArn": target_groups[1]["TargetGroupArn"]}]
)
listener_rule[1]["Conditions"].should.equal(
[{"Field": "host-header", "Values": ["example.com"]}]
)
# test outputs
stacks = cfn_conn.describe_stacks(StackName="elb_stack")["Stacks"]
len(stacks).should.equal(1)