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fargate-cluster.yaml
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fargate-cluster.yaml
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AWSTemplateFormatVersion: '2010-09-09'
Description: 'A stack for deploying containerized applications in AWS Fargate.'
Metadata:
'AWS::CloudFormation::Interface':
ParameterGroups:
- Label:
default: 'VPC Parameters'
Parameters:
- ClassB
- Label:
default: 'Load Balancer Parameters'
Parameters:
- LoadBalancerCertificateArn
- LoadBalancerIdleTimeout
- LoadBalancerPriority
- LoadBalancerHostPattern
- LoadBalancerPathPattern
- LoadBalancerDeregistrationDelay
- LoadBalancerHealthCheckPath
- Label:
default: 'Namespace Parameters'
Parameters:
- NSName
- Label:
default: 'Task Parameters'
Parameters:
- TaskPolicies
- GatewayImage
- FrontendImage
- BackendImage
- GatewayPort
- FrontendPort
- BackendPort
- Label:
default: 'Service Parameters'
Parameters:
- GatewayServiceName
- FrontendServiceName
- BackendServiceName
- Cpu
- Memory
- AutoScaling
- DesiredCount
- MaxCapacity
- MinCapacity
- HealthCheckGracePeriod
- LogsRetentionInDays
Parameters:
ClassB:
Description: 'Class B of VPC (10.XXX.0.0./16)'
Type: Number
Default: 0
ConstraintDescription: 'Must be in the range [0-255]'
MinValue: 0
MaxValue: 255
LoadBalancerCertificateArn:
Description: 'Optional Amazon Resource Name (ARN) of the certificate to associate with the load balancer. If set, HTTP requests are redirected to HTTPS.'
Type: String
Default: ''
LoadBalancerIdleTimeout:
Description: 'The idle timeout value, in seconds.'
Type: Number
Default: 60
MinValue: 1
MaxValue: 4000
LoadBalancerPriority:
Description: 'The priority for the rule. Elastic Load Balancing evaluates rules in priority order, from the lowest value to the highest value. If a request satisfies a rule, Elastic Load Balancing ignores all subsequent rules. A target group can have only one rule with a given priority.'
Type: Number
Default: 1
ConstraintDescription: 'Must be in the range [1-99999]'
MinValue: 1
MaxValue: 99999
LoadBalancerHostPattern:
Description: 'Optional host pattern. Specify LoadBalancerPathPattern and/or LoadBalancerHostPattern.'
Type: String
Default: ''
ConstraintDescription: 'Must not be longer than 255'
MaxLength: 255
LoadBalancerPathPattern:
Description: 'Optional path pattern. Specify LoadBalancerPathPattern and/or LoadBalancerHostPattern.'
Type: String
Default: '/*'
ConstraintDescription: 'Must not be longer than 255'
MaxLength: 255
LoadBalancerDeregistrationDelay:
Description: 'The amount time (in seconds) to wait before changing the state of a deregistering target from draining to unused.'
Type: Number
Default: 60
ConstraintDescription: 'Must be in the range [0-3600]'
MinValue: 0
MaxValue: 3600
LoadBalancerHealthCheckPath:
Description: 'Health checks path for gateway or proxy'
Type: String
Default: '/.well-known/apollo/server-health'
ConstraintDescription: 'Must not be longer than 255'
MaxLength: 255
TaskPolicies:
Description: 'Comma-delimited list of IAM managed policy ARNs to attach to the task IAM role'
Type: String
Default: ''
NSName:
Description: 'The name of the namespace.'
Type: String
Default: backoffice
GatewayServiceName:
Description: 'The name of the service used for service discovery (Cloud Map).'
Type: String
Default: gateway
GatewayImage:
Description: 'The Docker image to use for the app container. You can use images in the Docker Hub registry or specify other repositories (repository-url/image:tag).'
Type: String
AllowedPattern: ".+" # require non blank value
GatewayPort:
Description: 'The port exposed by the app container that receives traffic from the load balancer or the proxy container.'
Type: Number
Default: 3000
MinValue: 1
MaxValue: 49150
FrontendServiceName:
Description: 'The name of the service used for service discovery (Cloud Map).'
Type: String
Default: frontend
FrontendImage:
Description: 'The Docker image to use for the app container. You can use images in the Docker Hub registry or specify other repositories (repository-url/image:tag).'
Type: String
AllowedPattern: ".+" # require non blank value
FrontendPort:
Description: 'The port exposed by the app container that receives traffic from the load balancer or the proxy container.'
Type: Number
Default: 3000
MinValue: 1
MaxValue: 49150
BackendServiceName:
Description: 'The name of the service used for service discovery (Cloud Map).'
Type: String
Default: backend
BackendImage:
Description: 'The Docker image to use for the app container. You can use images in the Docker Hub registry or specify other repositories (repository-url/image:tag).'
Type: String
AllowedPattern: ".+" # require non blank value
BackendPort:
Description: 'The port exposed by the app container that receives traffic from the load balancer or the proxy container.'
Type: Number
Default: 3000
MinValue: 1
MaxValue: 49150
Cpu:
Description: 'The minimum number of vCPUs to reserve for the container.'
Type: String
Default: '0.25'
AllowedValues: ['0.25', '0.5', '1', '2', '4']
Memory:
Description: 'The amount (in GB) of memory used by the task.'
Type: String
Default: '0.5'
AllowedValues: ['0.5', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30']
DesiredCount:
Description: 'The number of simultaneous tasks, that you want to run on the cluster.'
Type: Number
Default: 2
ConstraintDescription: 'Must be >= 1'
MinValue: 1
MaxCapacity:
Description: 'The maximum number of simultaneous tasks, that you want to run on the cluster.'
Type: Number
Default: 4
ConstraintDescription: 'Must be >= 1'
MinValue: 1
MinCapacity:
Description: 'The minimum number of simultaneous tasks, that you want to run on the cluster.'
Type: Number
Default: 2
ConstraintDescription: 'Must be >= 1'
MinValue: 1
LogsRetentionInDays:
Description: 'Specifies the number of days you want to retain log events in the specified log group.'
Type: Number
Default: 14
AllowedValues: [1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, 3653]
AutoScaling:
Description: 'Scale number of tasks based on CPU load?'
Type: String
Default: 'true'
AllowedValues: ['true', 'false']
HealthCheckGracePeriod:
Description: 'The period of time, in seconds, that the Amazon ECS service scheduler ignores unhealthy Elastic Load Balancing target health checks after a task has first started.'
Type: Number
Default: 60
MinValue: 0
MaxValue: 1800
Mappings:
CpuMap:
'0.25':
Cpu: 256
'0.5':
Cpu: 512
'1':
Cpu: 1024
'2':
Cpu: 2048
'4':
Cpu: 4096
MemoryMap:
'0.5':
Memory: 512
'1':
Memory: 1024
'2':
Memory: 2048
'3':
Memory: 3072
'4':
Memory: 4096
'5':
Memory: 5120
'6':
Memory: 6144
'7':
Memory: 7168
'8':
Memory: 8192
'9':
Memory: 9216
'10':
Memory: 10240
'11':
Memory: 11264
'12':
Memory: 12288
'13':
Memory: 13312
'14':
Memory: 14336
'15':
Memory: 15360
'16':
Memory: 16384
'17':
Memory: 17408
'18':
Memory: 18432
'19':
Memory: 19456
'20':
Memory: 20480
'21':
Memory: 21504
'22':
Memory: 22528
'23':
Memory: 23552
'24':
Memory: 24576
'25':
Memory: 25600
'26':
Memory: 26624
'27':
Memory: 27648
'28':
Memory: 28672
'29':
Memory: 29696
'30':
Memory: 30720
Conditions:
HasLoadBalancerCertificateArn: !Not [!Equals [!Ref LoadBalancerCertificateArn, '']]
HasLoadBalancerPathPattern: !Not [!Equals [!Ref LoadBalancerPathPattern, '']]
HasLoadBalancerHostPattern: !Not [!Equals [!Ref LoadBalancerHostPattern, '']]
HasAutoScaling: !Equals [!Ref AutoScaling, 'true']
HasTaskPolicies: !Not [!Equals [!Ref TaskPolicies, '']]
Resources:
VPC:
Type: 'AWS::EC2::VPC'
Properties:
EnableDnsSupport: true
EnableDnsHostnames: true
CidrBlock: !Sub '10.${ClassB}.0.0/16'
InternetGateway:
Type: 'AWS::EC2::InternetGateway'
Properties:
Tags:
- Key: Name
Value: !Sub '10.${ClassB}.0.0/16'
VPCGatewayAttachment:
Type: 'AWS::EC2::VPCGatewayAttachment'
Properties:
VpcId: !Ref VPC
InternetGatewayId: !Ref InternetGateway
SubnetAPublic:
Type: 'AWS::EC2::Subnet'
Properties:
AvailabilityZone: !Select [0, !GetAZs '']
CidrBlock: !Sub '10.${ClassB}.0.0/20'
MapPublicIpOnLaunch: true
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'A public'
- Key: Reach
Value: public
SubnetAPrivate:
Type: 'AWS::EC2::Subnet'
Properties:
AvailabilityZone: !Select [0, !GetAZs '']
CidrBlock: !Sub '10.${ClassB}.16.0/20'
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'A private'
- Key: Reach
Value: private
SubnetBPublic:
Type: 'AWS::EC2::Subnet'
Properties:
AvailabilityZone: !Select [1, !GetAZs '']
CidrBlock: !Sub '10.${ClassB}.32.0/20'
MapPublicIpOnLaunch: true
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'B public'
- Key: Reach
Value: public
SubnetBPrivate:
Type: 'AWS::EC2::Subnet'
Properties:
AvailabilityZone: !Select [1, !GetAZs '']
CidrBlock: !Sub '10.${ClassB}.48.0/20'
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'B private'
- Key: Reach
Value: private
RouteTableAPublic:
Type: 'AWS::EC2::RouteTable'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'A Public'
RouteTableAPrivate:
Type: 'AWS::EC2::RouteTable'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'A Private'
RouteTableBPublic:
Type: 'AWS::EC2::RouteTable'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'B Public'
RouteTableBPrivate:
Type: 'AWS::EC2::RouteTable'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: 'B Private'
RouteTableAssociationAPublic:
Type: 'AWS::EC2::SubnetRouteTableAssociation'
Properties:
SubnetId: !Ref SubnetAPublic
RouteTableId: !Ref RouteTableAPublic
RouteTableAssociationAPrivate:
Type: 'AWS::EC2::SubnetRouteTableAssociation'
Properties:
SubnetId: !Ref SubnetAPrivate
RouteTableId: !Ref RouteTableAPrivate
RouteTableAssociationBPublic:
Type: 'AWS::EC2::SubnetRouteTableAssociation'
Properties:
SubnetId: !Ref SubnetBPublic
RouteTableId: !Ref RouteTableBPublic
RouteTableAssociationBPrivate:
Type: 'AWS::EC2::SubnetRouteTableAssociation'
Properties:
SubnetId: !Ref SubnetBPrivate
RouteTableId: !Ref RouteTableBPrivate
RouteTablePublicAInternetRoute:
Type: 'AWS::EC2::Route'
DependsOn: VPCGatewayAttachment
Properties:
RouteTableId: !Ref RouteTableAPublic
DestinationCidrBlock: '0.0.0.0/0'
GatewayId: !Ref InternetGateway
RouteTablePublicBInternetRoute:
Type: 'AWS::EC2::Route'
DependsOn: VPCGatewayAttachment
Properties:
RouteTableId: !Ref RouteTableBPublic
DestinationCidrBlock: '0.0.0.0/0'
GatewayId: !Ref InternetGateway
# NatGatway for private subnets
NatGatewayAAttachment:
Type: 'AWS::EC2::EIP'
DependsOn: VPCGatewayAttachment
Properties:
Domain: vpc
NatGatewayBAttachment:
Type: 'AWS::EC2::EIP'
DependsOn: VPCGatewayAttachment
Properties:
Domain: vpc
NatGatewayA:
Type: 'AWS::EC2::NatGateway'
Properties:
AllocationId: !GetAtt 'NatGatewayAAttachment.AllocationId'
SubnetId: !Ref SubnetAPublic
NatGatewayB:
Type: 'AWS::EC2::NatGateway'
Properties:
AllocationId: !GetAtt 'NatGatewayBAttachment.AllocationId'
SubnetId: !Ref SubnetBPublic
RouteTablePrivateAInternetRoute:
Type: 'AWS::EC2::Route'
Properties:
RouteTableId: !Ref RouteTableAPrivate
DestinationCidrBlock: '0.0.0.0/0'
NatGatewayId: !Ref NatGatewayA
RouteTablePrivateBInternetRoute:
Type: 'AWS::EC2::Route'
Properties:
RouteTableId: !Ref RouteTableBPrivate
DestinationCidrBlock: '0.0.0.0/0'
NatGatewayId: !Ref NatGatewayB
NetworkAclPublic:
Type: 'AWS::EC2::NetworkAcl'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: Public
NetworkAclPrivate:
Type: 'AWS::EC2::NetworkAcl'
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: Private
SubnetNetworkAclAssociationAPublic:
Type: 'AWS::EC2::SubnetNetworkAclAssociation'
Properties:
SubnetId: !Ref SubnetAPublic
NetworkAclId: !Ref NetworkAclPublic
SubnetNetworkAclAssociationAPrivate:
Type: 'AWS::EC2::SubnetNetworkAclAssociation'
Properties:
SubnetId: !Ref SubnetAPrivate
NetworkAclId: !Ref NetworkAclPrivate
SubnetNetworkAclAssociationBPublic:
Type: 'AWS::EC2::SubnetNetworkAclAssociation'
Properties:
SubnetId: !Ref SubnetBPublic
NetworkAclId: !Ref NetworkAclPublic
SubnetNetworkAclAssociationBPrivate:
Type: 'AWS::EC2::SubnetNetworkAclAssociation'
Properties:
SubnetId: !Ref SubnetBPrivate
NetworkAclId: !Ref NetworkAclPrivate
NetworkAclEntryInPublicAllowAll:
Type: 'AWS::EC2::NetworkAclEntry'
Properties:
NetworkAclId: !Ref NetworkAclPublic
RuleNumber: 99
Protocol: -1
RuleAction: allow
Egress: false
CidrBlock: '0.0.0.0/0'
NetworkAclEntryOutPublicAllowAll:
Type: 'AWS::EC2::NetworkAclEntry'
Properties:
NetworkAclId: !Ref NetworkAclPublic
RuleNumber: 99
Protocol: -1
RuleAction: allow
Egress: true
CidrBlock: '0.0.0.0/0'
NetworkAclEntryInPrivateAllowVPC:
Type: 'AWS::EC2::NetworkAclEntry'
Properties:
NetworkAclId: !Ref NetworkAclPrivate
RuleNumber: 99
Protocol: -1
RuleAction: allow
Egress: false
CidrBlock: '0.0.0.0/0'
NetworkAclEntryOutPrivateAllowVPC:
Type: 'AWS::EC2::NetworkAclEntry'
Properties:
NetworkAclId: !Ref NetworkAclPrivate
RuleNumber: 99
Protocol: -1
RuleAction: allow
Egress: true
CidrBlock: '0.0.0.0/0'
# ECS Resources
Cluster:
Type: 'AWS::ECS::Cluster'
Properties: {}
LoadBalancerSecurityGroup:
Type: 'AWS::EC2::SecurityGroup'
Properties:
GroupDescription: !Sub '${AWS::StackName}-load-balancer'
VpcId: !Ref VPC
LoadBalancerSecurityGroupInHttpFromWorld:
Type: 'AWS::EC2::SecurityGroupIngress'
Properties:
GroupId: !Ref LoadBalancerSecurityGroup
IpProtocol: tcp
FromPort: 80
ToPort: 80
CidrIp: '0.0.0.0/0'
LoadBalancerSecurityGroupInHttpsFromWorld:
Type: 'AWS::EC2::SecurityGroupIngress'
Properties:
GroupId: !Ref LoadBalancerSecurityGroup
IpProtocol: tcp
FromPort: 443
ToPort: 443
CidrIp: '0.0.0.0/0'
LoadBalancer:
Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer'
Properties:
LoadBalancerAttributes:
- Key: 'idle_timeout.timeout_seconds'
Value: !Ref LoadBalancerIdleTimeout
- Key: 'routing.http2.enabled'
Value: 'true'
Scheme: 'internet-facing'
SecurityGroups:
- !Ref LoadBalancerSecurityGroup
Subnets:
- !Ref SubnetAPublic
- !Ref SubnetBPublic
Type: application
HttpListener:
Type: 'AWS::ElasticLoadBalancingV2::Listener'
Properties:
DefaultActions:
- !If
- HasLoadBalancerCertificateArn
- RedirectConfig:
Port: '443'
Protocol: HTTPS
StatusCode: 'HTTP_301'
Type: redirect
- FixedResponseConfig:
ContentType: 'text/plain'
MessageBody: default
StatusCode: '404'
Type: 'fixed-response'
LoadBalancerArn: !Ref LoadBalancer
Port: 80
Protocol: HTTP
HttpsListener:
Condition: HasLoadBalancerCertificateArn
Type: 'AWS::ElasticLoadBalancingV2::Listener'
Properties:
Certificates:
- CertificateArn: !Ref LoadBalancerCertificateArn
DefaultActions:
- FixedResponseConfig:
ContentType: 'text/plain'
MessageBody: default
StatusCode: '404'
Type: 'fixed-response'
LoadBalancerArn: !Ref LoadBalancer
Port: 443
Protocol: HTTPS
# Service Cluster ALB
TargetGroup:
Type: 'AWS::ElasticLoadBalancingV2::TargetGroup'
Properties:
HealthCheckIntervalSeconds: 15
HealthCheckPath: !Ref LoadBalancerHealthCheckPath
HealthCheckProtocol: HTTP
HealthCheckTimeoutSeconds: 10
HealthyThresholdCount: 2
UnhealthyThresholdCount: 2
Matcher:
HttpCode: '200-299'
Port: !Ref GatewayPort
Protocol: HTTP
TargetType: ip
TargetGroupAttributes:
- Key: deregistration_delay.timeout_seconds
Value: !Ref LoadBalancerDeregistrationDelay
VpcId: !Ref VPC
LoadBalancerListenerRule:
Type: 'AWS::ElasticLoadBalancingV2::ListenerRule'
Properties:
Actions:
- Type: forward
TargetGroupArn: !Ref TargetGroup
Conditions: !If
- HasLoadBalancerPathPattern
- !If
- HasLoadBalancerHostPattern
- - Field: host-header
Values:
- !Ref LoadBalancerHostPattern
- Field: path-pattern
Values:
- !Sub '${LoadBalancerPathPattern}'
- - Field: path-pattern
Values:
- !Sub '${LoadBalancerPathPattern}'
- !If
- HasLoadBalancerHostPattern
- - Field: host-header
Values:
- !Ref LoadBalancerHostPattern
- [] # neither LoadBalancerHostPattern nor LoadBalancerPathPattern specified
ListenerArn: !Ref HttpListener
Priority: !Ref LoadBalancerPriority
TaskExecutionRole:
Type: 'AWS::IAM::Role'
Properties:
AssumeRolePolicyDocument:
Statement:
- Effect: Allow
Principal:
Service: 'ecs-tasks.amazonaws.com'
Action: 'sts:AssumeRole'
Policies:
- PolicyName: AmazonECSTaskExecutionRolePolicy # https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_execution_IAM_role.html
PolicyDocument:
Statement:
- Effect: Allow
Action:
- 'ecr:GetAuthorizationToken'
- 'ecr:BatchCheckLayerAvailability'
- 'ecr:GetDownloadUrlForLayer'
- 'ecr:BatchGetImage'
Resource: '*'
- Effect: Allow
Action:
- 'logs:CreateLogStream'
- 'logs:PutLogEvents'
Resource: !GetAtt 'LogGroup.Arn'
TaskRole:
Type: 'AWS::IAM::Role'
Properties:
AssumeRolePolicyDocument:
Statement:
- Effect: Allow
Principal:
Service: 'ecs-tasks.amazonaws.com'
Action: 'sts:AssumeRole'
ManagedPolicyArns: !If [HasTaskPolicies, !Split [',', !Ref TaskPolicies], !Ref 'AWS::NoValue']
LogGroup:
Type: 'AWS::Logs::LogGroup'
Properties:
RetentionInDays: !Ref LogsRetentionInDays
ServicePublicSecurityGroup:
Type: 'AWS::EC2::SecurityGroup'
Properties:
GroupDescription: !Sub '${AWS::StackName}-PublicService'
VpcId: !Ref VPC
SecurityGroupIngress:
- SourceSecurityGroupId: !Ref LoadBalancerSecurityGroup
FromPort: !Ref GatewayPort
ToPort: !Ref GatewayPort
IpProtocol: tcp
ServicePrivateSecurityGroup:
Type: 'AWS::EC2::SecurityGroup'
Properties:
GroupDescription: !Sub '${AWS::StackName}-PrivateService'
VpcId: !Ref VPC
SecurityGroupIngress:
- SourceSecurityGroupId: !Ref ServicePublicSecurityGroup
IpProtocol: -1
Namespace:
Type: 'AWS::ServiceDiscovery::PrivateDnsNamespace'
Properties:
Description: !Ref 'AWS::StackName'
Vpc: !Ref VPC
Name: !Ref NSName
# Service Definition
## Gateway
GatewayServiceDiscovery:
Type: 'AWS::ServiceDiscovery::Service'
Properties:
Description: !Ref 'AWS::StackName'
DnsConfig:
DnsRecords:
- Type: A
TTL: 30
- Type: SRV
TTL: 30
NamespaceId: !GetAtt 'Namespace.Id'
RoutingPolicy: MULTIVALUE
HealthCheckCustomConfig:
FailureThreshold: 1
Name: !Ref GatewayServiceName
NamespaceId: !GetAtt 'Namespace.Id'
GatewayTaskDefinition:
Type: 'AWS::ECS::TaskDefinition'
Properties:
ContainerDefinitions:
- Name: Gateway
Image: !Ref GatewayImage
PortMappings:
- ContainerPort: !Ref GatewayPort
Protocol: tcp
Essential: true
LogConfiguration:
LogDriver: awslogs
Options:
'awslogs-region': !Ref 'AWS::Region'
'awslogs-group': !Ref LogGroup
'awslogs-stream-prefix': Gateway
Cpu: !FindInMap [CpuMap, !Ref Cpu, Cpu]
ExecutionRoleArn: !GetAtt 'TaskExecutionRole.Arn'
Family: !Ref 'AWS::StackName'
Memory: !FindInMap [MemoryMap, !Ref Memory, Memory]
NetworkMode: awsvpc
RequiresCompatibilities: [FARGATE]
TaskRoleArn: !GetAtt 'TaskRole.Arn'
GatewayService:
DependsOn: LoadBalancerListenerRule
Type: 'AWS::ECS::Service'
Properties:
Cluster: !Ref Cluster
DeploymentConfiguration:
MaximumPercent: 200
MinimumHealthyPercent: 100
DesiredCount: !Ref DesiredCount
HealthCheckGracePeriodSeconds: !Ref HealthCheckGracePeriod
LaunchType: FARGATE
ServiceRegistries:
- ContainerName: Gateway
ContainerPort: !Ref GatewayPort
RegistryArn: !GetAtt 'GatewayServiceDiscovery.Arn'
LoadBalancers:
- ContainerName: Gateway
ContainerPort: !Ref GatewayPort
TargetGroupArn: !Ref TargetGroup
NetworkConfiguration:
AwsvpcConfiguration:
AssignPublicIp: ENABLED
SecurityGroups:
- !Ref ServicePublicSecurityGroup
Subnets:
- !Ref SubnetAPublic
- !Ref SubnetBPublic
TaskDefinition: !Ref GatewayTaskDefinition
## Backend
BackendServiceDiscovery:
Type: 'AWS::ServiceDiscovery::Service'
Properties:
Description: !Ref 'AWS::StackName'
DnsConfig:
DnsRecords:
- Type: A
TTL: 30
- Type: SRV
TTL: 30
NamespaceId: !GetAtt 'Namespace.Id'
RoutingPolicy: MULTIVALUE
HealthCheckCustomConfig:
FailureThreshold: 1
Name: !Ref BackendServiceName
NamespaceId: !GetAtt 'Namespace.Id'
BackendTaskDefinition:
Type: 'AWS::ECS::TaskDefinition'
Properties:
ContainerDefinitions:
- Name: Backend
Image: !Ref BackendImage
PortMappings:
- ContainerPort: !Ref BackendPort
Protocol: tcp
Essential: true
LogConfiguration:
LogDriver: awslogs
Options:
'awslogs-region': !Ref 'AWS::Region'
'awslogs-group': !Ref LogGroup
'awslogs-stream-prefix': Backend
Cpu: !FindInMap [CpuMap, !Ref Cpu, Cpu]
ExecutionRoleArn: !GetAtt 'TaskExecutionRole.Arn'
Family: !Ref 'AWS::StackName'
Memory: !FindInMap [MemoryMap, !Ref Memory, Memory]
NetworkMode: awsvpc
RequiresCompatibilities: [FARGATE]
TaskRoleArn: !GetAtt 'TaskRole.Arn'
BackendService:
DependsOn: LoadBalancerListenerRule
Type: 'AWS::ECS::Service'
Properties:
Cluster: !Ref Cluster
DeploymentConfiguration:
MaximumPercent: 200
MinimumHealthyPercent: 100
DesiredCount: !Ref DesiredCount
LaunchType: FARGATE
ServiceRegistries:
- ContainerName: Backend
ContainerPort: !Ref BackendPort
RegistryArn: !GetAtt 'BackendServiceDiscovery.Arn'
NetworkConfiguration:
AwsvpcConfiguration:
AssignPublicIp: DISABLED
SecurityGroups:
- !Ref ServicePrivateSecurityGroup
Subnets:
- !Ref SubnetAPrivate
- !Ref SubnetBPrivate
TaskDefinition: !Ref BackendTaskDefinition
## Frontend
FrontendServiceDiscovery:
Type: 'AWS::ServiceDiscovery::Service'
Properties:
Description: !Ref 'AWS::StackName'
DnsConfig:
DnsRecords:
- Type: A
TTL: 30
- Type: SRV
TTL: 30
NamespaceId: !GetAtt 'Namespace.Id'
RoutingPolicy: MULTIVALUE
HealthCheckCustomConfig:
FailureThreshold: 1
Name: !Ref FrontendServiceName
NamespaceId: !GetAtt 'Namespace.Id'
FrontendTaskDefinition:
Type: 'AWS::ECS::TaskDefinition'
Properties:
ContainerDefinitions:
- Name: Frontend
Image: !Ref FrontendImage
PortMappings:
- ContainerPort: !Ref FrontendPort
Protocol: tcp
Essential: true
LogConfiguration:
LogDriver: awslogs
Options:
'awslogs-region': !Ref 'AWS::Region'
'awslogs-group': !Ref LogGroup
'awslogs-stream-prefix': Frontend
Cpu: !FindInMap [CpuMap, !Ref Cpu, Cpu]
ExecutionRoleArn: !GetAtt 'TaskExecutionRole.Arn'
Family: !Ref 'AWS::StackName'
Memory: !FindInMap [MemoryMap, !Ref Memory, Memory]
NetworkMode: awsvpc
RequiresCompatibilities: [FARGATE]
TaskRoleArn: !GetAtt 'TaskRole.Arn'
FrontendService:
DependsOn: LoadBalancerListenerRule
Type: 'AWS::ECS::Service'
Properties:
Cluster: !Ref Cluster
DeploymentConfiguration:
MaximumPercent: 200
MinimumHealthyPercent: 100
DesiredCount: !Ref DesiredCount
LaunchType: FARGATE
ServiceRegistries:
- ContainerName: Frontend
ContainerPort: !Ref FrontendPort
RegistryArn: !GetAtt 'FrontendServiceDiscovery.Arn'
NetworkConfiguration:
AwsvpcConfiguration:
AssignPublicIp: DISABLED
SecurityGroups:
- !Ref ServicePrivateSecurityGroup
Subnets:
- !Ref SubnetAPrivate
- !Ref SubnetBPrivate
TaskDefinition: !Ref FrontendTaskDefinition
# Auto Scaling
## Scaling Role
ScalableTargetRole: # based on http://docs.aws.amazon.com/AmazonECS/latest/developerguide/autoscale_IAM_role.html
Condition: HasAutoScaling
Type: 'AWS::IAM::Role'
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service: 'application-autoscaling.amazonaws.com'
Action: 'sts:AssumeRole'
Policies:
- PolicyName: AmazonEC2ContainerServiceAutoscaleRole
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- 'ecs:DescribeServices'
- 'ecs:UpdateService'
Resource: '*'
- PolicyName: cloudwatch
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- 'cloudwatch:DescribeAlarms'
Resource: '*'
## Gateway Scale Policy
GatewayScalableTarget:
Condition: HasAutoScaling
Type: 'AWS::ApplicationAutoScaling::ScalableTarget'
Properties:
MaxCapacity: !Ref MaxCapacity
MinCapacity: !Ref MinCapacity
ResourceId: !Sub
- 'service/${Cluster}/${Service}'
- Cluster: !Ref Cluster
Service: !GetAtt 'GatewayService.Name'
RoleARN: !GetAtt 'ScalableTargetRole.Arn'
ScalableDimension: 'ecs:service:DesiredCount'
ServiceNamespace: ecs
GatewayScaleUpPolicy:
Condition: HasAutoScaling
Type: 'AWS::ApplicationAutoScaling::ScalingPolicy'
Properties:
PolicyName: !Sub '${AWS::StackName}-scale-up'
PolicyType: StepScaling
ScalingTargetId: !Ref GatewayScalableTarget
StepScalingPolicyConfiguration:
AdjustmentType: PercentChangeInCapacity
Cooldown: 300
MinAdjustmentMagnitude: 1
StepAdjustments:
- MetricIntervalLowerBound: 0
ScalingAdjustment: 25
GatewayScaleDownPolicy:
Condition: HasAutoScaling
Type: 'AWS::ApplicationAutoScaling::ScalingPolicy'
Properties:
PolicyName: !Sub '${AWS::StackName}-scale-down'
PolicyType: StepScaling
ScalingTargetId: !Ref GatewayScalableTarget
StepScalingPolicyConfiguration:
AdjustmentType: PercentChangeInCapacity
Cooldown: 300
MinAdjustmentMagnitude: 1
StepAdjustments:
- MetricIntervalUpperBound: 0
ScalingAdjustment: -25
GatewayCPUUtilizationHighAlarm:
Condition: HasAutoScaling
Type: 'AWS::CloudWatch::Alarm'
Properties:
AlarmDescription: 'Service is running out of CPU'
Namespace: 'AWS/ECS'
Dimensions:
- Name: ClusterName
Value: !Ref Cluster
- Name: ServiceName
Value: !GetAtt 'GatewayService.Name'
MetricName: CPUUtilization
ComparisonOperator: GreaterThanThreshold
Statistic: Average
Period: 300
EvaluationPeriods: 1
Threshold: 60
AlarmActions:
- !Ref GatewayScaleUpPolicy
GatewayCPUUtilizationLowAlarm:
Condition: HasAutoScaling
Type: 'AWS::CloudWatch::Alarm'
Properties:
AlarmDescription: 'Service is wasting CPU'
Namespace: 'AWS/ECS'
Dimensions:
- Name: ClusterName
Value: !Ref Cluster
- Name: ServiceName
Value: !GetAtt 'GatewayService.Name'
MetricName: CPUUtilization
ComparisonOperator: LessThanThreshold
Statistic: Average
Period: 300
EvaluationPeriods: 3
Threshold: 30
AlarmActions:
- !Ref GatewayScaleDownPolicy
## Backend Scale Policy
BackendScalableTarget:
Condition: HasAutoScaling
Type: 'AWS::ApplicationAutoScaling::ScalableTarget'
Properties:
MaxCapacity: !Ref MaxCapacity
MinCapacity: !Ref MinCapacity
ResourceId: !Sub
- 'service/${Cluster}/${Service}'
- Cluster: !Ref Cluster