Add CloudFormation support to AWS::ElasticLoadBalancingV2::TargetGroup

moto/cloudformation/parsing.py

@@ -63,6 +63,7 @@ MODEL_MAP = {
     "AWS::ECS::Service": ecs_models.Service,
     "AWS::ElasticLoadBalancing::LoadBalancer": elb_models.FakeLoadBalancer,
     "AWS::ElasticLoadBalancingV2::LoadBalancer": elbv2_models.FakeLoadBalancer,
+    "AWS::ElasticLoadBalancingV2::TargetGroup": elbv2_models.FakeTargetGroup,
     "AWS::DataPipeline::Pipeline": datapipeline_models.Pipeline,
     "AWS::IAM::InstanceProfile": iam_models.InstanceProfile,
     "AWS::IAM::Role": iam_models.Role,

moto/elbv2/models.py

@@ -52,7 +52,9 @@ class FakeTargetGroup(BaseModel):
                  healthcheck_interval_seconds,
                  healthcheck_timeout_seconds,
                  healthy_threshold_count,
-                 unhealthy_threshold_count):
+                 unhealthy_threshold_count,
+                 matcher=None,
+                 target_type=None):
         self.name = name
         self.arn = arn
         self.vpc_id = vpc_id
@@ -67,6 +69,8 @@ class FakeTargetGroup(BaseModel):
         self.unhealthy_threshold_count = unhealthy_threshold_count
         self.load_balancer_arns = []
         self.tags = {}
+        self.matcher = matcher
+        self.target_type = target_type
 
         self.attributes = {
             'deregistration_delay.timeout_seconds': 300,
@@ -99,6 +103,43 @@ class FakeTargetGroup(BaseModel):
             raise InvalidTargetError()
         return FakeHealthStatus(t['id'], t['port'], self.healthcheck_port, 'healthy')
 
+    @classmethod
+    def create_from_cloudformation_json(cls, resource_name, cloudformation_json, region_name):
+        properties = cloudformation_json['Properties']
+
+        elbv2_backend = elbv2_backends[region_name]
+
+        name = properties.get('Name')
+        vpc_id = properties.get("VpcId")
+        protocol = properties.get('Protocol')
+        port = properties.get("Port")
+        healthcheck_protocol = properties.get("HealthCheckProtocol")
+        healthcheck_port = properties.get("HealthCheckPort")
+        healthcheck_path = properties.get("HealthCheckPath")
+        healthcheck_interval_seconds = properties.get("HealthCheckIntervalSeconds")
+        healthcheck_timeout_seconds = properties.get("HealthCheckTimeoutSeconds")
+        healthy_threshold_count = properties.get("HealthyThresholdCount")
+        unhealthy_threshold_count = properties.get("UnhealthyThresholdCount")
+        matcher = properties.get("Matcher")
+        target_type = properties.get("TargetType")
+
+        target_group = elbv2_backend.create_target_group(
+            name=name,
+            vpc_id=vpc_id,
+            protocol=protocol,
+            port=port,
+            healthcheck_protocol=healthcheck_protocol,
+            healthcheck_port=healthcheck_port,
+            healthcheck_path=healthcheck_path,
+            healthcheck_interval_seconds=healthcheck_interval_seconds,
+            healthcheck_timeout_seconds=healthcheck_timeout_seconds,
+            healthy_threshold_count=healthy_threshold_count,
+            unhealthy_threshold_count=unhealthy_threshold_count,
+            matcher=matcher,
+            target_type=target_type,
+        )
+        return target_group
+
 
 class FakeListener(BaseModel):
 

moto/elbv2/responses.py

@@ -472,9 +472,14 @@ CREATE_TARGET_GROUP_TEMPLATE = """<CreateTargetGroupResponse xmlns="http://elast
         <HealthCheckTimeoutSeconds>{{ target_group.healthcheck_timeout_seconds }}</HealthCheckTimeoutSeconds>
         <HealthyThresholdCount>{{ target_group.healthy_threshold_count }}</HealthyThresholdCount>
         <UnhealthyThresholdCount>{{ target_group.unhealthy_threshold_count }}</UnhealthyThresholdCount>
+        {% if target_group.matcher %}
         <Matcher>
-          <HttpCode>200</HttpCode>
+          <HttpCode>{{ target_group.matcher['HttpCode'] }}</HttpCode>
         </Matcher>
+        {% endif %}
+        {% if target_group.target_type %}
+        <TargetType>{{ target_group.target_type }}</TargetType>
+        {% endif %}
       </member>
     </TargetGroups>
   </CreateTargetGroupResult>
@@ -635,16 +640,21 @@ DESCRIBE_TARGET_GROUPS_TEMPLATE = """<DescribeTargetGroupsResponse xmlns="http:/
         <Protocol>{{ target_group.protocol }}</Protocol>
         <Port>{{ target_group.port }}</Port>
         <VpcId>{{ target_group.vpc_id }}</VpcId>
-        <HealthCheckProtocol>{{ target_group.health_check_protocol }}</HealthCheckProtocol>
+        <HealthCheckProtocol>{{ target_group.healthcheck_protocol }}</HealthCheckProtocol>
         <HealthCheckPort>{{ target_group.healthcheck_port }}</HealthCheckPort>
         <HealthCheckPath>{{ target_group.healthcheck_path }}</HealthCheckPath>
         <HealthCheckIntervalSeconds>{{ target_group.healthcheck_interval_seconds }}</HealthCheckIntervalSeconds>
         <HealthCheckTimeoutSeconds>{{ target_group.healthcheck_timeout_seconds }}</HealthCheckTimeoutSeconds>
         <HealthyThresholdCount>{{ target_group.healthy_threshold_count }}</HealthyThresholdCount>
         <UnhealthyThresholdCount>{{ target_group.unhealthy_threshold_count }}</UnhealthyThresholdCount>
+        {% if target_group.matcher %}
         <Matcher>
-          <HttpCode>200</HttpCode>
+          <HttpCode>{{ target_group.matcher['HttpCode'] }}</HttpCode>
         </Matcher>
+        {% endif %}
+        {% if target_group.target_type %}
+        <TargetType>{{ target_group.target_type }}</TargetType>
+        {% endif %}
         <LoadBalancerArns>
           {% for load_balancer_arn in target_group.load_balancer_arns %}
           <member>{{ load_balancer_arn }}</member>

tests/test_cloudformation/test_cloudformation_stack_integration.py

@@ -2216,8 +2216,23 @@ def test_stack_elbv2_resources_integration():
     elbv2_conn = boto3.client("elbv2", "us-west-1")
 
     load_balancers = elbv2_conn.describe_load_balancers()['LoadBalancers']
-    assert len(load_balancers) == 1
+    len(load_balancers).should.equal(1)
-    assert load_balancers[0]['LoadBalancerName'] == 'myelbv2'
+    load_balancers[0]['LoadBalancerName'].should.equal('myelbv2')
-    assert load_balancers[0]['Scheme'] == 'internet-facing'
+    load_balancers[0]['Scheme'].should.equal('internet-facing')
-    assert load_balancers[0]['Type'] == 'application'
+    load_balancers[0]['Type'].should.equal('application')
-    assert load_balancers[0]['IpAddressType'] == 'ipv4'
+    load_balancers[0]['IpAddressType'].should.equal('ipv4')
+
+    target_groups = elbv2_conn.describe_target_groups()['TargetGroups']
+    len(target_groups).should.equal(1)
+    target_groups[0]['HealthCheckIntervalSeconds'].should.equal(30)
+    target_groups[0]['HealthCheckPath'].should.equal('/status')
+    target_groups[0]['HealthCheckPort'].should.equal('80')
+    target_groups[0]['HealthCheckProtocol'].should.equal('HTTP')
+    target_groups[0]['HealthCheckTimeoutSeconds'].should.equal(5)
+    target_groups[0]['HealthyThresholdCount'].should.equal(30)
+    target_groups[0]['UnhealthyThresholdCount'].should.equal(5)
+    target_groups[0]['Matcher'].should.equal({'HttpCode': '200,201'})
+    target_groups[0]['TargetGroupName'].should.equal('mytargetgroup')
+    target_groups[0]['Port'].should.equal(80)
+    target_groups[0]['Protocol'].should.equal('HTTP')
+    target_groups[0]['TargetType'].should.equal('instance')