├── .gitignore ├── LICENSE.txt ├── README.md ├── fargate-networking-stacks ├── public-private-vpc.yml └── public-vpc.yml ├── images ├── local-networking.png ├── private-task-private-loadbalancer.svg ├── private-task-public-loadbalancer.svg ├── private-task.svg ├── public-task-public-loadbalancer.svg └── public-task.svg └── service-stacks ├── private-subnet-private-loadbalancer.yml ├── private-subnet-public-loadbalancer.yml └── public-subnet-public-loadbalancer.yml /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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This collection covers a broader set of use cases, and you can use filters to more easily explore different dimensions, including various ECS features, and capacity types like EC2 as well__ 5 | 6 | This is a collection of CloudFormation templates for launching containers in Fargate with a variety of different networking approaches. Fargate is designed to give you significant control over how the networking of your containers works, and these templates show how to host public facing containers, containers which are indirectly accessible to the public via a load balancer but hosted within a private network, and private containers that can not be accessed by the public. 7 | 8 | ## Instructions 9 | 10 | ### 1. Choose a Fargate cluster networking stack: 11 | 12 | Launch the stack of your choice, and give it a friendly name in CloudFormation. For example "production" or "qa". You'll be using the name of this stack later for launching a service. 13 | 14 | Choose one of the following: 15 | 16 | #### [Public VPC](fargate-networking-stacks/public-vpc.yml): 17 | 18 | ![public task](images/public-task.svg) 19 | 20 | Fully public networking stack. All containers launched in this stack will have public IP addresses and can be directly accessible on the internet via an internet gateway, or indirectly accessible via a public facing load balancer. (Note that by default the security groups are configured so that the containers only accept traffic from the load balancer, even though they have public IP addresses. The capability for direct access is there if the security group is changed though.) 21 | 22 | #### [Public + Private VPC](fargate-networking-stacks/public-private-vpc.yml): 23 | 24 | ![private task](images/private-task.svg) 25 | 26 | Networking stack with both public and private subnets. This stack offers the most flexibility, with the ability to host both public facing services, as well as private, internal services for which there is no public access. 27 | Containers that are run in the private subnet can access the internet via NAT 28 | gateway. 29 | 30 | ### 2. Choose a service template: 31 | 32 | There are three service templates to choose between. 33 | 34 | #### [Public Subnet, Public Load Balancer](service-stacks/public-subnet-public-loadbalancer.yml): 35 | 36 | ![public subnet public load balancer](images/public-task-public-loadbalancer.svg) 37 | 38 | This template requires the public subnet or public + private subnet networking stack. It launches containers that have public IP addresses in a public subnet, so they are directly accessible to the public. It also associates the containers with a public facing load balancer. 39 | 40 | #### [Private Subnet, Public Load Balancer](service-stacks/private-subnet-public-loadbalancer.yml): 41 | 42 | ![private subnet public load balancer](images/private-task-public-loadbalancer.svg) 43 | 44 | This template requires the public + private subnet networking stack. It launches containers that have no public IP address, and which are hosted in private subnet. If they need to make external requests, they can initiate outbound network traffic through a NAT gateway in the public subnets. The only way to get network traffic to these private containers is via a public facing load balancer which is hosted in the public subnets. 45 | 46 | #### [Private Subnet, Private Load Balancer](service-stacks/private-subnet-private-loadbalancer.yml): 47 | 48 | ![private subnet private load balancer](images/private-task-private-loadbalancer.svg) 49 | 50 | This template requires the public + private subnet networking stack. It launches containers that are hosted in a private subnet, and have no public IP address. The containers are behind an internal load balancer which is hosted in the private subnet, with no public IP address either. This allows other containers in the subnet to make requests against the load balancer, but the load balancer is not accessible to the public internet. These private services can still initiate outbound access the internet via the NAT gateway hosted in the public subnets. 51 | 52 | 53 | Each of the above CF stacks has default values prefilled for launching a simple Nginx container, but can be customized. It's important to make sure the "StackName" value is filled in with the same name that you selected for the name of your networking stack chosen in step #1. 54 | -------------------------------------------------------------------------------- /fargate-networking-stacks/public-private-vpc.yml: -------------------------------------------------------------------------------- 1 | AWSTemplateFormatVersion: '2010-09-09' 2 | Description: This stack deploys a Fargate cluster that is in a VPC with both 3 | public and private subnets. Containers can be deployed into either 4 | the public subnets or the private subnets, and there are two load 5 | balancers. One is inside the public subnet, which can be used to 6 | send traffic to the containers in the private subnet, and one in 7 | the private subnet, which can be used for private internal traffic 8 | between internal services. 9 | Mappings: 10 | # Hard values for the subnet masks. These masks define 11 | # the range of internal IP addresses that can be assigned. 12 | # The VPC can have all IP's from 10.0.0.0 to 10.0.255.255 13 | # There are four subnets which cover the ranges: 14 | # 15 | # 10.0.0.0 - 10.0.0.255 16 | # 10.0.1.0 - 10.0.1.255 17 | # 10.0.2.0 - 10.0.2.255 18 | # 10.0.3.0 - 10.0.3.255 19 | # 20 | # If you need more IP addresses (perhaps you have so many 21 | # instances that you run out) then you can customize these 22 | # ranges to add more 23 | SubnetConfig: 24 | VPC: 25 | CIDR: '10.0.0.0/16' 26 | PublicOne: 27 | CIDR: '10.0.0.0/24' 28 | PublicTwo: 29 | CIDR: '10.0.1.0/24' 30 | PrivateOne: 31 | CIDR: '10.0.2.0/24' 32 | PrivateTwo: 33 | CIDR: '10.0.3.0/24' 34 | Resources: 35 | # VPC in which containers will be networked. 36 | # It has two public subnets, and two private subnets. 37 | # We distribute the subnets across the first two available subnets 38 | # for the region, for high availability. 39 | VPC: 40 | Type: AWS::EC2::VPC 41 | Properties: 42 | EnableDnsSupport: true 43 | EnableDnsHostnames: true 44 | CidrBlock: !FindInMap ['SubnetConfig', 'VPC', 'CIDR'] 45 | 46 | # Two public subnets, where containers can have public IP addresses 47 | PublicSubnetOne: 48 | Type: AWS::EC2::Subnet 49 | Properties: 50 | AvailabilityZone: 51 | Fn::Select: 52 | - 0 53 | - Fn::GetAZs: {Ref: 'AWS::Region'} 54 | VpcId: !Ref 'VPC' 55 | CidrBlock: !FindInMap ['SubnetConfig', 'PublicOne', 'CIDR'] 56 | MapPublicIpOnLaunch: true 57 | PublicSubnetTwo: 58 | Type: AWS::EC2::Subnet 59 | Properties: 60 | AvailabilityZone: 61 | Fn::Select: 62 | - 1 63 | - Fn::GetAZs: {Ref: 'AWS::Region'} 64 | VpcId: !Ref 'VPC' 65 | CidrBlock: !FindInMap ['SubnetConfig', 'PublicTwo', 'CIDR'] 66 | MapPublicIpOnLaunch: true 67 | 68 | # Two private subnets where containers will only have private 69 | # IP addresses, and will only be reachable by other members of the 70 | # VPC 71 | PrivateSubnetOne: 72 | Type: AWS::EC2::Subnet 73 | Properties: 74 | AvailabilityZone: 75 | Fn::Select: 76 | - 0 77 | - Fn::GetAZs: {Ref: 'AWS::Region'} 78 | VpcId: !Ref 'VPC' 79 | CidrBlock: !FindInMap ['SubnetConfig', 'PrivateOne', 'CIDR'] 80 | PrivateSubnetTwo: 81 | Type: AWS::EC2::Subnet 82 | Properties: 83 | AvailabilityZone: 84 | Fn::Select: 85 | - 1 86 | - Fn::GetAZs: {Ref: 'AWS::Region'} 87 | VpcId: !Ref 'VPC' 88 | CidrBlock: !FindInMap ['SubnetConfig', 'PrivateTwo', 'CIDR'] 89 | 90 | # Setup networking resources for the public subnets. Containers 91 | # in the public subnets have public IP addresses and the routing table 92 | # sends network traffic via the internet gateway. 93 | InternetGateway: 94 | Type: AWS::EC2::InternetGateway 95 | GatewayAttachement: 96 | Type: AWS::EC2::VPCGatewayAttachment 97 | Properties: 98 | VpcId: !Ref 'VPC' 99 | InternetGatewayId: !Ref 'InternetGateway' 100 | PublicRouteTable: 101 | Type: AWS::EC2::RouteTable 102 | Properties: 103 | VpcId: !Ref 'VPC' 104 | PublicRoute: 105 | Type: AWS::EC2::Route 106 | DependsOn: GatewayAttachement 107 | Properties: 108 | RouteTableId: !Ref 'PublicRouteTable' 109 | DestinationCidrBlock: '0.0.0.0/0' 110 | GatewayId: !Ref 'InternetGateway' 111 | PublicSubnetOneRouteTableAssociation: 112 | Type: AWS::EC2::SubnetRouteTableAssociation 113 | Properties: 114 | SubnetId: !Ref PublicSubnetOne 115 | RouteTableId: !Ref PublicRouteTable 116 | PublicSubnetTwoRouteTableAssociation: 117 | Type: AWS::EC2::SubnetRouteTableAssociation 118 | Properties: 119 | SubnetId: !Ref PublicSubnetTwo 120 | RouteTableId: !Ref PublicRouteTable 121 | 122 | # Setup networking resources for the private subnets. Containers 123 | # in these subnets have only private IP addresses, and must use a NAT 124 | # gateway to talk to the internet. We launch two NAT gateways, one for 125 | # each private subnet. 126 | NatGatewayOneAttachment: 127 | Type: AWS::EC2::EIP 128 | DependsOn: GatewayAttachement 129 | Properties: 130 | Domain: vpc 131 | NatGatewayTwoAttachment: 132 | Type: AWS::EC2::EIP 133 | DependsOn: GatewayAttachement 134 | Properties: 135 | Domain: vpc 136 | NatGatewayOne: 137 | Type: AWS::EC2::NatGateway 138 | Properties: 139 | AllocationId: !GetAtt NatGatewayOneAttachment.AllocationId 140 | SubnetId: !Ref PublicSubnetOne 141 | NatGatewayTwo: 142 | Type: AWS::EC2::NatGateway 143 | Properties: 144 | AllocationId: !GetAtt NatGatewayTwoAttachment.AllocationId 145 | SubnetId: !Ref PublicSubnetTwo 146 | PrivateRouteTableOne: 147 | Type: AWS::EC2::RouteTable 148 | Properties: 149 | VpcId: !Ref 'VPC' 150 | PrivateRouteOne: 151 | Type: AWS::EC2::Route 152 | Properties: 153 | RouteTableId: !Ref PrivateRouteTableOne 154 | DestinationCidrBlock: 0.0.0.0/0 155 | NatGatewayId: !Ref NatGatewayOne 156 | PrivateRouteTableOneAssociation: 157 | Type: AWS::EC2::SubnetRouteTableAssociation 158 | Properties: 159 | RouteTableId: !Ref PrivateRouteTableOne 160 | SubnetId: !Ref PrivateSubnetOne 161 | PrivateRouteTableTwo: 162 | Type: AWS::EC2::RouteTable 163 | Properties: 164 | VpcId: !Ref 'VPC' 165 | PrivateRouteTwo: 166 | Type: AWS::EC2::Route 167 | Properties: 168 | RouteTableId: !Ref PrivateRouteTableTwo 169 | DestinationCidrBlock: 0.0.0.0/0 170 | NatGatewayId: !Ref NatGatewayTwo 171 | PrivateRouteTableTwoAssociation: 172 | Type: AWS::EC2::SubnetRouteTableAssociation 173 | Properties: 174 | RouteTableId: !Ref PrivateRouteTableTwo 175 | SubnetId: !Ref PrivateSubnetTwo 176 | 177 | # OPTIONAL: VPC Endpoint for DynamoDB 178 | # If a container needs to access DynamoDB this allows a container in the private subnet 179 | # to talk to DynamoDB directly without needing to go via the NAT gateway. This reduces 180 | # the amount of bandwidth through the gateway, meaning that the gateway is free to serve 181 | # your other traffic. 182 | DynamoDBEndpoint: 183 | Type: AWS::EC2::VPCEndpoint 184 | Properties: 185 | PolicyDocument: 186 | Version: "2012-10-17" 187 | Statement: 188 | - Effect: Allow 189 | Action: "*" 190 | Principal: "*" 191 | Resource: "*" 192 | RouteTableIds: 193 | - !Ref 'PrivateRouteTableOne' 194 | - !Ref 'PrivateRouteTableTwo' 195 | ServiceName: !Join [ "", [ "com.amazonaws.", { "Ref": "AWS::Region" }, ".dynamodb" ] ] 196 | VpcId: !Ref 'VPC' 197 | 198 | # ECS Resources 199 | ECSCluster: 200 | Type: AWS::ECS::Cluster 201 | 202 | # A security group for the containers we will run in Fargate. 203 | # Three rules, allowing network traffic from a public facing load 204 | # balancer, a private internal load balancer, and from other members 205 | # of the security group. 206 | # 207 | # Remove any of the following ingress rules that are not needed. 208 | FargateContainerSecurityGroup: 209 | Type: AWS::EC2::SecurityGroup 210 | Properties: 211 | GroupDescription: Access to the Fargate containers 212 | VpcId: !Ref 'VPC' 213 | EcsSecurityGroupIngressFromPublicALB: 214 | Type: AWS::EC2::SecurityGroupIngress 215 | Properties: 216 | Description: Ingress from the public ALB 217 | GroupId: !Ref 'FargateContainerSecurityGroup' 218 | IpProtocol: -1 219 | SourceSecurityGroupId: !Ref 'PublicLoadBalancerSG' 220 | EcsSecurityGroupIngressFromPrivateALB: 221 | Type: AWS::EC2::SecurityGroupIngress 222 | Properties: 223 | Description: Ingress from the private ALB 224 | GroupId: !Ref 'FargateContainerSecurityGroup' 225 | IpProtocol: -1 226 | SourceSecurityGroupId: !Ref 'PrivateLoadBalancerSG' 227 | EcsSecurityGroupIngressFromSelf: 228 | Type: AWS::EC2::SecurityGroupIngress 229 | Properties: 230 | Description: Ingress from other containers in the same security group 231 | GroupId: !Ref 'FargateContainerSecurityGroup' 232 | IpProtocol: -1 233 | SourceSecurityGroupId: !Ref 'FargateContainerSecurityGroup' 234 | 235 | # Load balancers for getting traffic to containers. 236 | # This sample template creates two load balancers: 237 | # 238 | # - One public load balancer, hosted in public subnets that is accessible 239 | # to the public, and is intended to route traffic to one or more public 240 | # facing services. 241 | # - One private load balancer, hosted in private subnets, that only 242 | # accepts traffic from other containers in the Fargate cluster, and is 243 | # intended for private services that should not be accessed directly 244 | # by the public. 245 | 246 | # A public facing load balancer, this is used for accepting traffic from the public 247 | # internet and directing it to public facing microservices 248 | PublicLoadBalancerSG: 249 | Type: AWS::EC2::SecurityGroup 250 | Properties: 251 | GroupDescription: Access to the public facing load balancer 252 | VpcId: !Ref 'VPC' 253 | SecurityGroupIngress: 254 | # Allow access to ALB from anywhere on the internet 255 | - CidrIp: 0.0.0.0/0 256 | IpProtocol: -1 257 | PublicLoadBalancer: 258 | Type: AWS::ElasticLoadBalancingV2::LoadBalancer 259 | Properties: 260 | Scheme: internet-facing 261 | LoadBalancerAttributes: 262 | - Key: idle_timeout.timeout_seconds 263 | Value: '30' 264 | Subnets: 265 | # The load balancer is placed into the public subnets, so that traffic 266 | # from the internet can reach the load balancer directly via the internet gateway 267 | - !Ref PublicSubnetOne 268 | - !Ref PublicSubnetTwo 269 | SecurityGroups: [!Ref 'PublicLoadBalancerSG'] 270 | # A dummy target group is used to setup the ALB to just drop traffic 271 | # initially, before any real service target groups have been added. 272 | DummyTargetGroupPublic: 273 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 274 | Properties: 275 | HealthCheckIntervalSeconds: 6 276 | HealthCheckPath: / 277 | HealthCheckProtocol: HTTP 278 | HealthCheckTimeoutSeconds: 5 279 | HealthyThresholdCount: 2 280 | Name: !Join ['-', [!Ref 'AWS::StackName', 'drop-1']] 281 | Port: 80 282 | Protocol: HTTP 283 | UnhealthyThresholdCount: 2 284 | VpcId: !Ref 'VPC' 285 | PublicLoadBalancerListener: 286 | Type: AWS::ElasticLoadBalancingV2::Listener 287 | DependsOn: 288 | - PublicLoadBalancer 289 | Properties: 290 | DefaultActions: 291 | - TargetGroupArn: !Ref 'DummyTargetGroupPublic' 292 | Type: 'forward' 293 | LoadBalancerArn: !Ref 'PublicLoadBalancer' 294 | Port: 80 295 | Protocol: HTTP 296 | 297 | # An internal load balancer, this would be used for a service that is not 298 | # directly accessible to the public, but instead should only receive traffic 299 | # from your other services. 300 | PrivateLoadBalancerSG: 301 | Type: AWS::EC2::SecurityGroup 302 | Properties: 303 | GroupDescription: Access to the internal load balancer 304 | VpcId: !Ref 'VPC' 305 | PrivateLoadBalancerIngressFromECS: 306 | Type: AWS::EC2::SecurityGroupIngress 307 | Properties: 308 | Description: Only accept traffic from a container in the fargate container security group 309 | GroupId: !Ref 'PrivateLoadBalancerSG' 310 | IpProtocol: -1 311 | SourceSecurityGroupId: !Ref 'FargateContainerSecurityGroup' 312 | PrivateLoadBalancer: 313 | Type: AWS::ElasticLoadBalancingV2::LoadBalancer 314 | Properties: 315 | Scheme: internal 316 | LoadBalancerAttributes: 317 | - Key: idle_timeout.timeout_seconds 318 | Value: '30' 319 | Subnets: 320 | # This load balancer is put into the private subnet, so that there is no 321 | # route for the public to even be able to access the private load balancer. 322 | - !Ref PrivateSubnetOne 323 | - !Ref PrivateSubnetTwo 324 | SecurityGroups: [!Ref 'PrivateLoadBalancerSG'] 325 | # This dummy target group is used to setup the ALB to just drop traffic 326 | # initially, before any real service target groups have been added. 327 | DummyTargetGroupPrivate: 328 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 329 | Properties: 330 | HealthCheckIntervalSeconds: 6 331 | HealthCheckPath: / 332 | HealthCheckProtocol: HTTP 333 | HealthCheckTimeoutSeconds: 5 334 | HealthyThresholdCount: 2 335 | Name: !Join ['-', [!Ref 'AWS::StackName', 'drop-2']] 336 | Port: 80 337 | Protocol: HTTP 338 | UnhealthyThresholdCount: 2 339 | VpcId: !Ref 'VPC' 340 | PrivateLoadBalancerListener: 341 | Type: AWS::ElasticLoadBalancingV2::Listener 342 | DependsOn: 343 | - PrivateLoadBalancer 344 | Properties: 345 | DefaultActions: 346 | - TargetGroupArn: !Ref 'DummyTargetGroupPrivate' 347 | Type: 'forward' 348 | LoadBalancerArn: !Ref 'PrivateLoadBalancer' 349 | Port: 80 350 | Protocol: HTTP 351 | 352 | # This is an IAM role which authorizes ECS to manage resources on your 353 | # account on your behalf, such as updating your load balancer with the 354 | # details of where your containers are, so that traffic can reach your 355 | # containers. 356 | ECSRole: 357 | Type: AWS::IAM::Role 358 | Properties: 359 | AssumeRolePolicyDocument: 360 | Statement: 361 | - Effect: Allow 362 | Principal: 363 | Service: [ecs.amazonaws.com] 364 | Action: ['sts:AssumeRole'] 365 | Path: / 366 | Policies: 367 | - PolicyName: ecs-service 368 | PolicyDocument: 369 | Statement: 370 | - Effect: Allow 371 | Action: 372 | # Rules which allow ECS to attach network interfaces to instances 373 | # on your behalf in order for awsvpc networking mode to work right 374 | - 'ec2:AttachNetworkInterface' 375 | - 'ec2:CreateNetworkInterface' 376 | - 'ec2:CreateNetworkInterfacePermission' 377 | - 'ec2:DeleteNetworkInterface' 378 | - 'ec2:DeleteNetworkInterfacePermission' 379 | - 'ec2:Describe*' 380 | - 'ec2:DetachNetworkInterface' 381 | 382 | # Rules which allow ECS to update load balancers on your behalf 383 | # with the information sabout how to send traffic to your containers 384 | - 'elasticloadbalancing:DeregisterInstancesFromLoadBalancer' 385 | - 'elasticloadbalancing:DeregisterTargets' 386 | - 'elasticloadbalancing:Describe*' 387 | - 'elasticloadbalancing:RegisterInstancesWithLoadBalancer' 388 | - 'elasticloadbalancing:RegisterTargets' 389 | Resource: '*' 390 | 391 | # This is a role which is used by the ECS tasks themselves. 392 | ECSTaskExecutionRole: 393 | Type: AWS::IAM::Role 394 | Properties: 395 | AssumeRolePolicyDocument: 396 | Statement: 397 | - Effect: Allow 398 | Principal: 399 | Service: [ecs-tasks.amazonaws.com] 400 | Action: ['sts:AssumeRole'] 401 | Path: / 402 | Policies: 403 | - PolicyName: AmazonECSTaskExecutionRolePolicy 404 | PolicyDocument: 405 | Statement: 406 | - Effect: Allow 407 | Action: 408 | # Allow the ECS Tasks to download images from ECR 409 | - 'ecr:GetAuthorizationToken' 410 | - 'ecr:BatchCheckLayerAvailability' 411 | - 'ecr:GetDownloadUrlForLayer' 412 | - 'ecr:BatchGetImage' 413 | 414 | # Allow the ECS tasks to upload logs to CloudWatch 415 | - 'logs:CreateLogStream' 416 | - 'logs:PutLogEvents' 417 | Resource: '*' 418 | 419 | # These are the values output by the CloudFormation template. Be careful 420 | # about changing any of them, because of them are exported with specific 421 | # names so that the other task related CF templates can use them. 422 | Outputs: 423 | ClusterName: 424 | Description: The name of the ECS cluster 425 | Value: !Ref 'ECSCluster' 426 | Export: 427 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ClusterName' ] ] 428 | InternalUrl: 429 | Description: The url of the internal load balancer 430 | Value: !Join ['', ['http://', !GetAtt 'PrivateLoadBalancer.DNSName']] 431 | Export: 432 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'InternalUrl' ] ] 433 | ExternalUrl: 434 | Description: The url of the external load balancer 435 | Value: !Join ['', ['http://', !GetAtt 'PublicLoadBalancer.DNSName']] 436 | Export: 437 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ExternalUrl' ] ] 438 | ECSRole: 439 | Description: The ARN of the ECS role 440 | Value: !GetAtt 'ECSRole.Arn' 441 | Export: 442 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ECSRole' ] ] 443 | ECSTaskExecutionRole: 444 | Description: The ARN of the ECS role 445 | Value: !GetAtt 'ECSTaskExecutionRole.Arn' 446 | Export: 447 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ECSTaskExecutionRole' ] ] 448 | PublicListener: 449 | Description: The ARN of the public load balancer's Listener 450 | Value: !Ref PublicLoadBalancerListener 451 | Export: 452 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicListener' ] ] 453 | PrivateListener: 454 | Description: The ARN of the public load balancer's Listener 455 | Value: !Ref PrivateLoadBalancerListener 456 | Export: 457 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PrivateListener' ] ] 458 | VPCId: 459 | Description: The ID of the VPC that this stack is deployed in 460 | Value: !Ref 'VPC' 461 | Export: 462 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'VPCId' ] ] 463 | PublicSubnetOne: 464 | Description: Public subnet one 465 | Value: !Ref 'PublicSubnetOne' 466 | Export: 467 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicSubnetOne' ] ] 468 | PublicSubnetTwo: 469 | Description: Public subnet two 470 | Value: !Ref 'PublicSubnetTwo' 471 | Export: 472 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicSubnetTwo' ] ] 473 | PrivateSubnetOne: 474 | Description: Private subnet one 475 | Value: !Ref 'PrivateSubnetOne' 476 | Export: 477 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PrivateSubnetOne' ] ] 478 | PrivateSubnetTwo: 479 | Description: Private subnet two 480 | Value: !Ref 'PrivateSubnetTwo' 481 | Export: 482 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PrivateSubnetTwo' ] ] 483 | FargateContainerSecurityGroup: 484 | Description: A security group used to allow Fargate containers to receive traffic 485 | Value: !Ref 'FargateContainerSecurityGroup' 486 | Export: 487 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'FargateContainerSecurityGroup' ] ] 488 | -------------------------------------------------------------------------------- /fargate-networking-stacks/public-vpc.yml: -------------------------------------------------------------------------------- 1 | AWSTemplateFormatVersion: '2010-09-09' 2 | Description: A stack for deploying containerized applications in AWS Fargate. 3 | This stack runs containers in a public VPC subnet, and includes a 4 | public facing load balancer to register the services in. 5 | Mappings: 6 | # Hard values for the subnet masks. These masks define 7 | # the range of internal IP addresses that can be assigned. 8 | # The VPC can have all IP's from 10.0.0.0 to 10.0.255.255 9 | # There are two subnets which cover the ranges: 10 | # 11 | # 10.0.0.0 - 10.0.0.255 12 | # 10.0.1.0 - 10.0.1.255 13 | # 14 | # If you need more IP addresses (perhaps you have so many 15 | # instances that you run out) then you can customize these 16 | # ranges to add more 17 | SubnetConfig: 18 | VPC: 19 | CIDR: '10.0.0.0/16' 20 | PublicOne: 21 | CIDR: '10.0.0.0/24' 22 | PublicTwo: 23 | CIDR: '10.0.1.0/24' 24 | Resources: 25 | # VPC in which containers will be networked. 26 | # It has two public subnets 27 | # We distribute the subnets across the first two available subnets 28 | # for the region, for high availability. 29 | VPC: 30 | Type: AWS::EC2::VPC 31 | Properties: 32 | EnableDnsSupport: true 33 | EnableDnsHostnames: true 34 | CidrBlock: !FindInMap ['SubnetConfig', 'VPC', 'CIDR'] 35 | 36 | # Two public subnets, where containers can have public IP addresses 37 | PublicSubnetOne: 38 | Type: AWS::EC2::Subnet 39 | Properties: 40 | AvailabilityZone: 41 | Fn::Select: 42 | - 0 43 | - Fn::GetAZs: {Ref: 'AWS::Region'} 44 | VpcId: !Ref 'VPC' 45 | CidrBlock: !FindInMap ['SubnetConfig', 'PublicOne', 'CIDR'] 46 | MapPublicIpOnLaunch: true 47 | PublicSubnetTwo: 48 | Type: AWS::EC2::Subnet 49 | Properties: 50 | AvailabilityZone: 51 | Fn::Select: 52 | - 1 53 | - Fn::GetAZs: {Ref: 'AWS::Region'} 54 | VpcId: !Ref 'VPC' 55 | CidrBlock: !FindInMap ['SubnetConfig', 'PublicTwo', 'CIDR'] 56 | MapPublicIpOnLaunch: true 57 | 58 | # Setup networking resources for the public subnets. Containers 59 | # in the public subnets have public IP addresses and the routing table 60 | # sends network traffic via the internet gateway. 61 | InternetGateway: 62 | Type: AWS::EC2::InternetGateway 63 | GatewayAttachement: 64 | Type: AWS::EC2::VPCGatewayAttachment 65 | Properties: 66 | VpcId: !Ref 'VPC' 67 | InternetGatewayId: !Ref 'InternetGateway' 68 | PublicRouteTable: 69 | Type: AWS::EC2::RouteTable 70 | Properties: 71 | VpcId: !Ref 'VPC' 72 | PublicRoute: 73 | Type: AWS::EC2::Route 74 | DependsOn: GatewayAttachement 75 | Properties: 76 | RouteTableId: !Ref 'PublicRouteTable' 77 | DestinationCidrBlock: '0.0.0.0/0' 78 | GatewayId: !Ref 'InternetGateway' 79 | PublicSubnetOneRouteTableAssociation: 80 | Type: AWS::EC2::SubnetRouteTableAssociation 81 | Properties: 82 | SubnetId: !Ref PublicSubnetOne 83 | RouteTableId: !Ref PublicRouteTable 84 | PublicSubnetTwoRouteTableAssociation: 85 | Type: AWS::EC2::SubnetRouteTableAssociation 86 | Properties: 87 | SubnetId: !Ref PublicSubnetTwo 88 | RouteTableId: !Ref PublicRouteTable 89 | 90 | # ECS Resources 91 | ECSCluster: 92 | Type: AWS::ECS::Cluster 93 | 94 | # A security group for the containers we will run in Fargate. 95 | # Two rules, allowing network traffic from a public facing load 96 | # balancer and from other members of the security group. 97 | # 98 | # Remove any of the following ingress rules that are not needed. 99 | # If you want to make direct requests to a container using its 100 | # public IP address you'll need to add a security group rule 101 | # to allow traffic from all IP addresses. 102 | FargateContainerSecurityGroup: 103 | Type: AWS::EC2::SecurityGroup 104 | Properties: 105 | GroupDescription: Access to the Fargate containers 106 | VpcId: !Ref 'VPC' 107 | EcsSecurityGroupIngressFromPublicALB: 108 | Type: AWS::EC2::SecurityGroupIngress 109 | Properties: 110 | Description: Ingress from the public ALB 111 | GroupId: !Ref 'FargateContainerSecurityGroup' 112 | IpProtocol: -1 113 | SourceSecurityGroupId: !Ref 'PublicLoadBalancerSG' 114 | EcsSecurityGroupIngressFromSelf: 115 | Type: AWS::EC2::SecurityGroupIngress 116 | Properties: 117 | Description: Ingress from other containers in the same security group 118 | GroupId: !Ref 'FargateContainerSecurityGroup' 119 | IpProtocol: -1 120 | SourceSecurityGroupId: !Ref 'FargateContainerSecurityGroup' 121 | 122 | # Load balancers for getting traffic to containers. 123 | # This sample template creates one load balancer: 124 | # 125 | # - One public load balancer, hosted in public subnets that is accessible 126 | # to the public, and is intended to route traffic to one or more public 127 | # facing services. 128 | 129 | # A public facing load balancer, this is used for accepting traffic from the public 130 | # internet and directing it to public facing microservices 131 | PublicLoadBalancerSG: 132 | Type: AWS::EC2::SecurityGroup 133 | Properties: 134 | GroupDescription: Access to the public facing load balancer 135 | VpcId: !Ref 'VPC' 136 | SecurityGroupIngress: 137 | # Allow access to ALB from anywhere on the internet 138 | - CidrIp: 0.0.0.0/0 139 | IpProtocol: -1 140 | PublicLoadBalancer: 141 | Type: AWS::ElasticLoadBalancingV2::LoadBalancer 142 | Properties: 143 | Scheme: internet-facing 144 | LoadBalancerAttributes: 145 | - Key: idle_timeout.timeout_seconds 146 | Value: '30' 147 | Subnets: 148 | # The load balancer is placed into the public subnets, so that traffic 149 | # from the internet can reach the load balancer directly via the internet gateway 150 | - !Ref PublicSubnetOne 151 | - !Ref PublicSubnetTwo 152 | SecurityGroups: [!Ref 'PublicLoadBalancerSG'] 153 | # A dummy target group is used to setup the ALB to just drop traffic 154 | # initially, before any real service target groups have been added. 155 | DummyTargetGroupPublic: 156 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 157 | Properties: 158 | HealthCheckIntervalSeconds: 6 159 | HealthCheckPath: / 160 | HealthCheckProtocol: HTTP 161 | HealthCheckTimeoutSeconds: 5 162 | HealthyThresholdCount: 2 163 | Name: !Join ['-', [!Ref 'AWS::StackName', 'drop-1']] 164 | Port: 80 165 | Protocol: HTTP 166 | UnhealthyThresholdCount: 2 167 | VpcId: !Ref 'VPC' 168 | PublicLoadBalancerListener: 169 | Type: AWS::ElasticLoadBalancingV2::Listener 170 | DependsOn: 171 | - PublicLoadBalancer 172 | Properties: 173 | DefaultActions: 174 | - TargetGroupArn: !Ref 'DummyTargetGroupPublic' 175 | Type: 'forward' 176 | LoadBalancerArn: !Ref 'PublicLoadBalancer' 177 | Port: 80 178 | Protocol: HTTP 179 | 180 | # This is an IAM role which authorizes ECS to manage resources on your 181 | # account on your behalf, such as updating your load balancer with the 182 | # details of where your containers are, so that traffic can reach your 183 | # containers. 184 | ECSRole: 185 | Type: AWS::IAM::Role 186 | Properties: 187 | AssumeRolePolicyDocument: 188 | Statement: 189 | - Effect: Allow 190 | Principal: 191 | Service: [ecs.amazonaws.com] 192 | Action: ['sts:AssumeRole'] 193 | Path: / 194 | Policies: 195 | - PolicyName: ecs-service 196 | PolicyDocument: 197 | Statement: 198 | - Effect: Allow 199 | Action: 200 | # Rules which allow ECS to attach network interfaces to instances 201 | # on your behalf in order for awsvpc networking mode to work right 202 | - 'ec2:AttachNetworkInterface' 203 | - 'ec2:CreateNetworkInterface' 204 | - 'ec2:CreateNetworkInterfacePermission' 205 | - 'ec2:DeleteNetworkInterface' 206 | - 'ec2:DeleteNetworkInterfacePermission' 207 | - 'ec2:Describe*' 208 | - 'ec2:DetachNetworkInterface' 209 | 210 | # Rules which allow ECS to update load balancers on your behalf 211 | # with the information sabout how to send traffic to your containers 212 | - 'elasticloadbalancing:DeregisterInstancesFromLoadBalancer' 213 | - 'elasticloadbalancing:DeregisterTargets' 214 | - 'elasticloadbalancing:Describe*' 215 | - 'elasticloadbalancing:RegisterInstancesWithLoadBalancer' 216 | - 'elasticloadbalancing:RegisterTargets' 217 | Resource: '*' 218 | 219 | # This is a role which is used by the ECS tasks themselves. 220 | ECSTaskExecutionRole: 221 | Type: AWS::IAM::Role 222 | Properties: 223 | AssumeRolePolicyDocument: 224 | Statement: 225 | - Effect: Allow 226 | Principal: 227 | Service: [ecs-tasks.amazonaws.com] 228 | Action: ['sts:AssumeRole'] 229 | Path: / 230 | Policies: 231 | - PolicyName: AmazonECSTaskExecutionRolePolicy 232 | PolicyDocument: 233 | Statement: 234 | - Effect: Allow 235 | Action: 236 | # Allow the ECS Tasks to download images from ECR 237 | - 'ecr:GetAuthorizationToken' 238 | - 'ecr:BatchCheckLayerAvailability' 239 | - 'ecr:GetDownloadUrlForLayer' 240 | - 'ecr:BatchGetImage' 241 | 242 | # Allow the ECS tasks to upload logs to CloudWatch 243 | - 'logs:CreateLogStream' 244 | - 'logs:PutLogEvents' 245 | Resource: '*' 246 | 247 | # These are the values output by the CloudFormation template. Be careful 248 | # about changing any of them, because of them are exported with specific 249 | # names so that the other task related CF templates can use them. 250 | Outputs: 251 | ClusterName: 252 | Description: The name of the ECS cluster 253 | Value: !Ref 'ECSCluster' 254 | Export: 255 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ClusterName' ] ] 256 | ExternalUrl: 257 | Description: The url of the external load balancer 258 | Value: !Join ['', ['http://', !GetAtt 'PublicLoadBalancer.DNSName']] 259 | Export: 260 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ExternalUrl' ] ] 261 | ECSRole: 262 | Description: The ARN of the ECS role 263 | Value: !GetAtt 'ECSRole.Arn' 264 | Export: 265 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ECSRole' ] ] 266 | ECSTaskExecutionRole: 267 | Description: The ARN of the ECS role 268 | Value: !GetAtt 'ECSTaskExecutionRole.Arn' 269 | Export: 270 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'ECSTaskExecutionRole' ] ] 271 | PublicListener: 272 | Description: The ARN of the public load balancer's Listener 273 | Value: !Ref PublicLoadBalancerListener 274 | Export: 275 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicListener' ] ] 276 | VPCId: 277 | Description: The ID of the VPC that this stack is deployed in 278 | Value: !Ref 'VPC' 279 | Export: 280 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'VPCId' ] ] 281 | PublicSubnetOne: 282 | Description: Public subnet one 283 | Value: !Ref 'PublicSubnetOne' 284 | Export: 285 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicSubnetOne' ] ] 286 | PublicSubnetTwo: 287 | Description: Public subnet two 288 | Value: !Ref 'PublicSubnetTwo' 289 | Export: 290 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'PublicSubnetTwo' ] ] 291 | FargateContainerSecurityGroup: 292 | Description: A security group used to allow Fargate containers to receive traffic 293 | Value: !Ref 'FargateContainerSecurityGroup' 294 | Export: 295 | Name: !Join [ ':', [ !Ref 'AWS::StackName', 'FargateContainerSecurityGroup' ] ] 296 | -------------------------------------------------------------------------------- /images/local-networking.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/nathanpeck/aws-cloudformation-fargate/30238130d6105769283a69be6b2c40cb921b5bc5/images/local-networking.png -------------------------------------------------------------------------------- /images/private-task-public-loadbalancer.svg: -------------------------------------------------------------------------------- 1 | 2 | 3 |
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Fargate...Viewer does not support full SVG 1.1 -------------------------------------------------------------------------------- /service-stacks/private-subnet-private-loadbalancer.yml: -------------------------------------------------------------------------------- 1 | AWSTemplateFormatVersion: '2010-09-09' 2 | Description: Deploy a service on AWS Fargate, hosted in a private subnet, behind a private load balancer. 3 | Parameters: 4 | StackName: 5 | Type: String 6 | Default: production 7 | Description: The name of the parent Fargate networking stack that you created. Necessary 8 | to locate and reference resources created by that stack. 9 | ServiceName: 10 | Type: String 11 | Default: nginx 12 | Description: A name for the service 13 | ImageUrl: 14 | Type: String 15 | Default: nginx 16 | Description: The url of a docker image that contains the application process that 17 | will handle the traffic for this service 18 | ContainerPort: 19 | Type: Number 20 | Default: 80 21 | Description: What port number the application inside the docker container is binding to 22 | ContainerCpu: 23 | Type: Number 24 | Default: 256 25 | Description: How much CPU to give the container. 1024 is 1 CPU 26 | ContainerMemory: 27 | Type: Number 28 | Default: 512 29 | Description: How much memory in megabytes to give the container 30 | Path: 31 | Type: String 32 | Default: "*" 33 | Description: A path on the public load balancer that this service 34 | should be connected to. Use * to send all load balancer 35 | traffic to this service. 36 | Priority: 37 | Type: Number 38 | Default: 1 39 | Description: The priority for the routing rule added to the load balancer. 40 | This only applies if your have multiple services which have been 41 | assigned to different paths on the load balancer. 42 | DesiredCount: 43 | Type: Number 44 | Default: 2 45 | Description: How many copies of the service task to run 46 | Role: 47 | Type: String 48 | Default: "" 49 | Description: (Optional) An IAM role to give the service's containers if the code within needs to 50 | access other AWS resources like S3 buckets, DynamoDB tables, etc 51 | 52 | Conditions: 53 | HasCustomRole: !Not [ !Equals [!Ref 'Role', ''] ] 54 | 55 | Resources: 56 | 57 | # The task definition. This is a simple metadata description of what 58 | # container to run, and what resource requirements it has. 59 | TaskDefinition: 60 | Type: AWS::ECS::TaskDefinition 61 | Properties: 62 | Family: !Ref 'ServiceName' 63 | Cpu: !Ref 'ContainerCpu' 64 | Memory: !Ref 'ContainerMemory' 65 | NetworkMode: awsvpc 66 | RequiresCompatibilities: 67 | - FARGATE 68 | ExecutionRoleArn: 69 | Fn::ImportValue: 70 | !Join [':', [!Ref 'StackName', 'ECSTaskExecutionRole']] 71 | TaskRoleArn: 72 | Fn::If: 73 | - 'HasCustomRole' 74 | - !Ref 'Role' 75 | - !Ref "AWS::NoValue" 76 | ContainerDefinitions: 77 | - Name: !Ref 'ServiceName' 78 | Cpu: !Ref 'ContainerCpu' 79 | Memory: !Ref 'ContainerMemory' 80 | Image: !Ref 'ImageUrl' 81 | PortMappings: 82 | - ContainerPort: !Ref 'ContainerPort' 83 | 84 | # The service. The service is a resource which allows you to run multiple 85 | # copies of a type of task, and gather up their logs and metrics, as well 86 | # as monitor the number of running tasks and replace any that have crashed 87 | Service: 88 | Type: AWS::ECS::Service 89 | DependsOn: LoadBalancerRule 90 | Properties: 91 | ServiceName: !Ref 'ServiceName' 92 | Cluster: 93 | Fn::ImportValue: 94 | !Join [':', [!Ref 'StackName', 'ClusterName']] 95 | LaunchType: FARGATE 96 | DeploymentConfiguration: 97 | MaximumPercent: 200 98 | MinimumHealthyPercent: 75 99 | DesiredCount: !Ref 'DesiredCount' 100 | NetworkConfiguration: 101 | AwsvpcConfiguration: 102 | AssignPublicIp: ENABLED 103 | SecurityGroups: 104 | - Fn::ImportValue: 105 | !Join [':', [!Ref 'StackName', 'FargateContainerSecurityGroup']] 106 | Subnets: 107 | - Fn::ImportValue: 108 | !Join [':', [!Ref 'StackName', 'PrivateSubnetOne']] 109 | - Fn::ImportValue: 110 | !Join [':', [!Ref 'StackName', 'PrivateSubnetTwo']] 111 | TaskDefinition: !Ref 'TaskDefinition' 112 | LoadBalancers: 113 | - ContainerName: !Ref 'ServiceName' 114 | ContainerPort: !Ref 'ContainerPort' 115 | TargetGroupArn: !Ref 'TargetGroup' 116 | 117 | # A target group. This is used for keeping track of all the tasks, and 118 | # what IP addresses / port numbers they have. You can query it yourself, 119 | # to use the addresses yourself, but most often this target group is just 120 | # connected to an application load balancer, or network load balancer, so 121 | # it can automatically distribute traffic across all the targets. 122 | TargetGroup: 123 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 124 | Properties: 125 | HealthCheckIntervalSeconds: 6 126 | HealthCheckPath: / 127 | HealthCheckProtocol: HTTP 128 | HealthCheckTimeoutSeconds: 5 129 | HealthyThresholdCount: 2 130 | TargetType: ip 131 | Name: !Ref 'ServiceName' 132 | Port: !Ref 'ContainerPort' 133 | Protocol: HTTP 134 | UnhealthyThresholdCount: 2 135 | VpcId: 136 | Fn::ImportValue: 137 | !Join [':', [!Ref 'StackName', 'VPCId']] 138 | 139 | # Create a rule on the load balancer for routing traffic to the target group 140 | LoadBalancerRule: 141 | Type: AWS::ElasticLoadBalancingV2::ListenerRule 142 | Properties: 143 | Actions: 144 | - TargetGroupArn: !Ref 'TargetGroup' 145 | Type: 'forward' 146 | Conditions: 147 | - Field: path-pattern 148 | Values: [!Ref 'Path'] 149 | ListenerArn: 150 | Fn::ImportValue: 151 | !Join [':', [!Ref 'StackName', 'PrivateListener']] 152 | Priority: !Ref 'Priority' 153 | -------------------------------------------------------------------------------- /service-stacks/private-subnet-public-loadbalancer.yml: -------------------------------------------------------------------------------- 1 | AWSTemplateFormatVersion: '2010-09-09' 2 | Description: Deploy a service on AWS Fargate, hosted in a private subnet, but accessible via a public load balancer. 3 | Parameters: 4 | StackName: 5 | Type: String 6 | Default: production 7 | Description: The name of the parent Fargate networking stack that you created. Necessary 8 | to locate and reference resources created by that stack. 9 | ServiceName: 10 | Type: String 11 | Default: nginx 12 | Description: A name for the service 13 | ImageUrl: 14 | Type: String 15 | Default: nginx 16 | Description: The url of a docker image that contains the application process that 17 | will handle the traffic for this service 18 | ContainerPort: 19 | Type: Number 20 | Default: 80 21 | Description: What port number the application inside the docker container is binding to 22 | ContainerCpu: 23 | Type: Number 24 | Default: 256 25 | Description: How much CPU to give the container. 1024 is 1 CPU 26 | ContainerMemory: 27 | Type: Number 28 | Default: 512 29 | Description: How much memory in megabytes to give the container 30 | Path: 31 | Type: String 32 | Default: "*" 33 | Description: A path on the public load balancer that this service 34 | should be connected to. Use * to send all load balancer 35 | traffic to this service. 36 | Priority: 37 | Type: Number 38 | Default: 1 39 | Description: The priority for the routing rule added to the load balancer. 40 | This only applies if your have multiple services which have been 41 | assigned to different paths on the load balancer. 42 | DesiredCount: 43 | Type: Number 44 | Default: 2 45 | Description: How many copies of the service task to run 46 | Role: 47 | Type: String 48 | Default: "" 49 | Description: (Optional) An IAM role to give the service's containers if the code within needs to 50 | access other AWS resources like S3 buckets, DynamoDB tables, etc 51 | 52 | Conditions: 53 | HasCustomRole: !Not [ !Equals [!Ref 'Role', ''] ] 54 | 55 | Resources: 56 | 57 | # The task definition. This is a simple metadata description of what 58 | # container to run, and what resource requirements it has. 59 | TaskDefinition: 60 | Type: AWS::ECS::TaskDefinition 61 | Properties: 62 | Family: !Ref 'ServiceName' 63 | Cpu: !Ref 'ContainerCpu' 64 | Memory: !Ref 'ContainerMemory' 65 | NetworkMode: awsvpc 66 | RequiresCompatibilities: 67 | - FARGATE 68 | ExecutionRoleArn: 69 | Fn::ImportValue: 70 | !Join [':', [!Ref 'StackName', 'ECSTaskExecutionRole']] 71 | TaskRoleArn: 72 | Fn::If: 73 | - 'HasCustomRole' 74 | - !Ref 'Role' 75 | - !Ref "AWS::NoValue" 76 | ContainerDefinitions: 77 | - Name: !Ref 'ServiceName' 78 | Cpu: !Ref 'ContainerCpu' 79 | Memory: !Ref 'ContainerMemory' 80 | Image: !Ref 'ImageUrl' 81 | PortMappings: 82 | - ContainerPort: !Ref 'ContainerPort' 83 | 84 | # The service. The service is a resource which allows you to run multiple 85 | # copies of a type of task, and gather up their logs and metrics, as well 86 | # as monitor the number of running tasks and replace any that have crashed 87 | Service: 88 | Type: AWS::ECS::Service 89 | DependsOn: LoadBalancerRule 90 | Properties: 91 | ServiceName: !Ref 'ServiceName' 92 | Cluster: 93 | Fn::ImportValue: 94 | !Join [':', [!Ref 'StackName', 'ClusterName']] 95 | LaunchType: FARGATE 96 | DeploymentConfiguration: 97 | MaximumPercent: 200 98 | MinimumHealthyPercent: 75 99 | DesiredCount: !Ref 'DesiredCount' 100 | NetworkConfiguration: 101 | AwsvpcConfiguration: 102 | SecurityGroups: 103 | - Fn::ImportValue: 104 | !Join [':', [!Ref 'StackName', 'FargateContainerSecurityGroup']] 105 | Subnets: 106 | - Fn::ImportValue: 107 | !Join [':', [!Ref 'StackName', 'PrivateSubnetOne']] 108 | - Fn::ImportValue: 109 | !Join [':', [!Ref 'StackName', 'PrivateSubnetTwo']] 110 | TaskDefinition: !Ref 'TaskDefinition' 111 | LoadBalancers: 112 | - ContainerName: !Ref 'ServiceName' 113 | ContainerPort: !Ref 'ContainerPort' 114 | TargetGroupArn: !Ref 'TargetGroup' 115 | 116 | # A target group. This is used for keeping track of all the tasks, and 117 | # what IP addresses / port numbers they have. You can query it yourself, 118 | # to use the addresses yourself, but most often this target group is just 119 | # connected to an application load balancer, or network load balancer, so 120 | # it can automatically distribute traffic across all the targets. 121 | TargetGroup: 122 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 123 | Properties: 124 | HealthCheckIntervalSeconds: 6 125 | HealthCheckPath: / 126 | HealthCheckProtocol: HTTP 127 | HealthCheckTimeoutSeconds: 5 128 | HealthyThresholdCount: 2 129 | TargetType: ip 130 | Name: !Ref 'ServiceName' 131 | Port: !Ref 'ContainerPort' 132 | Protocol: HTTP 133 | UnhealthyThresholdCount: 2 134 | VpcId: 135 | Fn::ImportValue: 136 | !Join [':', [!Ref 'StackName', 'VPCId']] 137 | 138 | # Create a rule on the load balancer for routing traffic to the target group 139 | LoadBalancerRule: 140 | Type: AWS::ElasticLoadBalancingV2::ListenerRule 141 | Properties: 142 | Actions: 143 | - TargetGroupArn: !Ref 'TargetGroup' 144 | Type: 'forward' 145 | Conditions: 146 | - Field: path-pattern 147 | Values: [!Ref 'Path'] 148 | ListenerArn: 149 | Fn::ImportValue: 150 | !Join [':', [!Ref 'StackName', 'PublicListener']] 151 | Priority: !Ref 'Priority' 152 | -------------------------------------------------------------------------------- /service-stacks/public-subnet-public-loadbalancer.yml: -------------------------------------------------------------------------------- 1 | AWSTemplateFormatVersion: '2010-09-09' 2 | Description: Deploy a service on AWS Fargate, hosted in a public subnet, and accessible via a public load balancer. 3 | Parameters: 4 | StackName: 5 | Type: String 6 | Default: production 7 | Description: The name of the parent Fargate networking stack that you created. Necessary 8 | to locate and reference resources created by that stack. 9 | ServiceName: 10 | Type: String 11 | Default: nginx 12 | Description: A name for the service 13 | ImageUrl: 14 | Type: String 15 | Default: nginx 16 | Description: The url of a docker image that contains the application process that 17 | will handle the traffic for this service 18 | ContainerPort: 19 | Type: Number 20 | Default: 80 21 | Description: What port number the application inside the docker container is binding to 22 | ContainerCpu: 23 | Type: Number 24 | Default: 256 25 | Description: How much CPU to give the container. 1024 is 1 CPU 26 | ContainerMemory: 27 | Type: Number 28 | Default: 512 29 | Description: How much memory in megabytes to give the container 30 | Path: 31 | Type: String 32 | Default: "*" 33 | Description: A path on the public load balancer that this service 34 | should be connected to. Use * to send all load balancer 35 | traffic to this service. 36 | Priority: 37 | Type: Number 38 | Default: 1 39 | Description: The priority for the routing rule added to the load balancer. 40 | This only applies if your have multiple services which have been 41 | assigned to different paths on the load balancer. 42 | DesiredCount: 43 | Type: Number 44 | Default: 2 45 | Description: How many copies of the service task to run 46 | Role: 47 | Type: String 48 | Default: "" 49 | Description: (Optional) An IAM role to give the service's containers if the code within needs to 50 | access other AWS resources like S3 buckets, DynamoDB tables, etc 51 | 52 | Conditions: 53 | HasCustomRole: !Not [ !Equals [!Ref 'Role', ''] ] 54 | 55 | Resources: 56 | 57 | # The task definition. This is a simple metadata description of what 58 | # container to run, and what resource requirements it has. 59 | TaskDefinition: 60 | Type: AWS::ECS::TaskDefinition 61 | Properties: 62 | Family: !Ref 'ServiceName' 63 | Cpu: !Ref 'ContainerCpu' 64 | Memory: !Ref 'ContainerMemory' 65 | NetworkMode: awsvpc 66 | RequiresCompatibilities: 67 | - FARGATE 68 | ExecutionRoleArn: 69 | Fn::ImportValue: 70 | !Join [':', [!Ref 'StackName', 'ECSTaskExecutionRole']] 71 | TaskRoleArn: 72 | Fn::If: 73 | - 'HasCustomRole' 74 | - !Ref 'Role' 75 | - !Ref "AWS::NoValue" 76 | ContainerDefinitions: 77 | - Name: !Ref 'ServiceName' 78 | Cpu: !Ref 'ContainerCpu' 79 | Memory: !Ref 'ContainerMemory' 80 | Image: !Ref 'ImageUrl' 81 | PortMappings: 82 | - ContainerPort: !Ref 'ContainerPort' 83 | 84 | # The service. The service is a resource which allows you to run multiple 85 | # copies of a type of task, and gather up their logs and metrics, as well 86 | # as monitor the number of running tasks and replace any that have crashed 87 | Service: 88 | Type: AWS::ECS::Service 89 | DependsOn: LoadBalancerRule 90 | Properties: 91 | ServiceName: !Ref 'ServiceName' 92 | Cluster: 93 | Fn::ImportValue: 94 | !Join [':', [!Ref 'StackName', 'ClusterName']] 95 | LaunchType: FARGATE 96 | DeploymentConfiguration: 97 | MaximumPercent: 200 98 | MinimumHealthyPercent: 75 99 | DesiredCount: !Ref 'DesiredCount' 100 | NetworkConfiguration: 101 | AwsvpcConfiguration: 102 | AssignPublicIp: ENABLED 103 | SecurityGroups: 104 | - Fn::ImportValue: 105 | !Join [':', [!Ref 'StackName', 'FargateContainerSecurityGroup']] 106 | Subnets: 107 | - Fn::ImportValue: 108 | !Join [':', [!Ref 'StackName', 'PublicSubnetOne']] 109 | - Fn::ImportValue: 110 | !Join [':', [!Ref 'StackName', 'PublicSubnetTwo']] 111 | TaskDefinition: !Ref 'TaskDefinition' 112 | LoadBalancers: 113 | - ContainerName: !Ref 'ServiceName' 114 | ContainerPort: !Ref 'ContainerPort' 115 | TargetGroupArn: !Ref 'TargetGroup' 116 | 117 | # A target group. This is used for keeping track of all the tasks, and 118 | # what IP addresses / port numbers they have. You can query it yourself, 119 | # to use the addresses yourself, but most often this target group is just 120 | # connected to an application load balancer, or network load balancer, so 121 | # it can automatically distribute traffic across all the targets. 122 | TargetGroup: 123 | Type: AWS::ElasticLoadBalancingV2::TargetGroup 124 | Properties: 125 | HealthCheckIntervalSeconds: 6 126 | HealthCheckPath: / 127 | HealthCheckProtocol: HTTP 128 | HealthCheckTimeoutSeconds: 5 129 | HealthyThresholdCount: 2 130 | TargetType: ip 131 | Name: !Ref 'ServiceName' 132 | Port: !Ref 'ContainerPort' 133 | Protocol: HTTP 134 | UnhealthyThresholdCount: 2 135 | VpcId: 136 | Fn::ImportValue: 137 | !Join [':', [!Ref 'StackName', 'VPCId']] 138 | 139 | # Create a rule on the load balancer for routing traffic to the target group 140 | LoadBalancerRule: 141 | Type: AWS::ElasticLoadBalancingV2::ListenerRule 142 | Properties: 143 | Actions: 144 | - TargetGroupArn: !Ref 'TargetGroup' 145 | Type: 'forward' 146 | Conditions: 147 | - Field: path-pattern 148 | Values: [!Ref 'Path'] 149 | ListenerArn: 150 | Fn::ImportValue: 151 | !Join [':', [!Ref 'StackName', 'PublicListener']] 152 | Priority: !Ref 'Priority' 153 | --------------------------------------------------------------------------------