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Scorpio_Service_Discovery_Using_DNS.template
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{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "ECS Environment with Service Discovery",
"Parameters" : {
"KeyName" : {
"Type" : "AWS::EC2::KeyPair::KeyName",
"Description" : "Name of an existing EC2 KeyPair"
},
"ECSInstanceType" : {
"Type" : "String",
"Description" : "ECS instance type",
"Default" : "t2.micro",
"AllowedValues" : [ "t2.micro", "t2.small", "t2.medium" ],
"ConstraintDescription" : "Must be t2.micro, t2.small, t2.medium"
},
"ECSClusterInstanceCount" : {
"Type" : "Number",
"Description" : "The number of EC2 instances in the ECS Cluster",
"Default" : "2",
"AllowedValues" : [ "2", "3", "4" ]
}
},
"Mappings" : {
"AmazonLinuxAMI" : {
"us-east-1" : {
"AMI" : "ami-6df8fe7a"
},
"us-east-2" : {
"AMI" : "ami-c6b5efa3"
},
"us-west-1" : {
"AMI" : "ami-1eda8d7e"
},
"us-west-2" : {
"AMI" : "ami-a2ca61c2"
},
"eu-west-1" : {
"AMI" : "ami-ba346ec9"
},
"eu-west-2" : {
"AMI" : "ami-42c5cf26"
},
"eu-central-1" : {
"AMI" : "ami-e012d48f"
},
"ap-northeast-1" : {
"AMI" : "ami-08f7956f"
},
"ap-southeast-1" : {
"AMI" : "ami-f4832f97"
},
"ap-southeast-2" : {
"AMI" : "ami-774b7314"
},
"ca-central-1" : {
"AMI" : "ami-be45f7da"
}
},
"VPCLayout" : {
"VPC" : { "CIDR" : "10.5.0.0/16" },
"PublicSubnet1Config" : { "CIDR" : "10.5.10.0/24" },
"PublicSubnet2Config" : { "CIDR" : "10.5.15.0/24" }
}
},
"Resources" : {
"VPC" : {
"Type" : "AWS::EC2::VPC",
"Properties" : {
"EnableDnsSupport" : "true",
"EnableDnsHostnames" : "true",
"CidrBlock" : { "Fn::FindInMap" : [ "VPCLayout", "VPC", "CIDR" ]},
"Tags" : [
{
"Key" : "VPC",
"Value" : "ECS"
},
{
"Key" : "Name",
"Value" : "ECS refarch service discovery"
}
]
}
},
"HostedZone": {
"Type": "AWS::Route53::HostedZone",
"Properties": {
"HostedZoneConfig": { "Comment": "Hosted Zone for ECS Service Discovery" },
"Name": "servicediscovery.internal",
"VPCs": [{
"VPCId": { "Ref": "VPC" },
"VPCRegion": {"Ref": "AWS::Region"}
}]
}
},
"InternetGateway" : {
"Type" : "AWS::EC2::InternetGateway",
"DependsOn" : "VPC"
},
"AttachGateway" : {
"Type" : "AWS::EC2::VPCGatewayAttachment",
"DependsOn" : [
"VPC",
"InternetGateway"
],
"Properties" : {
"VpcId" : {
"Ref" : "VPC"
},
"InternetGatewayId" : {
"Ref" : "InternetGateway"
}
}
},
"PublicSubnet1" : {
"Type" : "AWS::EC2::Subnet",
"DependsOn" : "AttachGateway",
"Properties" : {
"VpcId" : { "Ref" : "VPC" },
"CidrBlock" : { "Fn::FindInMap" : [ "VPCLayout", "PublicSubnet1Config", "CIDR" ]},
"AvailabilityZone" : {
"Fn::Select" : [
"0",
{
"Fn::GetAZs" : ""
}
]
},
"Tags" : [
{
"Key" : "Name",
"Value" : "Public Subnet 1"
}
]
}
},
"PublicSubnet2" : {
"Type" : "AWS::EC2::Subnet",
"DependsOn" : "AttachGateway",
"Properties" : {
"VpcId" : { "Ref" : "VPC" },
"CidrBlock" : { "Fn::FindInMap" : [ "VPCLayout", "PublicSubnet2Config", "CIDR" ]},
"AvailabilityZone" : {
"Fn::Select" : [
"1",
{
"Fn::GetAZs" : ""
}
]
},
"Tags" : [
{
"Key" : "Name",
"Value" : "Public Subnet 2"
}
]
}
},
"PublicRouteTable" : {
"Type" : "AWS::EC2::RouteTable",
"DependsOn" : [
"VPC",
"AttachGateway"
],
"Properties" : {
"VpcId" : {
"Ref" : "VPC"
},
"Tags" : [
{
"Key" : "Name",
"Value" : "Public"
}
]
}
},
"PublicRoute" : {
"Type" : "AWS::EC2::Route",
"DependsOn" : [
"PublicRouteTable",
"AttachGateway"
],
"Properties" : {
"RouteTableId" : {
"Ref" : "PublicRouteTable"
},
"DestinationCidrBlock" : "0.0.0.0/0",
"GatewayId" : {
"Ref" : "InternetGateway"
}
}
},
"PublicSubnet1RouteTableAssociation" : {
"Type" : "AWS::EC2::SubnetRouteTableAssociation",
"DependsOn" : [
"PublicRouteTable",
"PublicSubnet1",
"AttachGateway"
],
"Properties" : {
"SubnetId" : {
"Ref" : "PublicSubnet1"
},
"RouteTableId" : {
"Ref" : "PublicRouteTable"
}
}
},
"PublicSubnet2RouteTableAssociation" : {
"Type" : "AWS::EC2::SubnetRouteTableAssociation",
"DependsOn" : [
"PublicRouteTable",
"PublicSubnet2"
],
"Properties" : {
"SubnetId" : {
"Ref" : "PublicSubnet2"
},
"RouteTableId" : {
"Ref" : "PublicRouteTable"
}
}
},
"ECSInstanceSecurityGroup" : {
"Type" : "AWS::EC2::SecurityGroup",
"DependsOn" : "AttachGateway",
"Properties" : {
"GroupDescription" : "Security Group for ECSInstance",
"VpcId" : {
"Ref" : "VPC"
},
"Tags" : [
{
"Key" : "Name",
"Value" : "ECSInstanceSecurityGroup"
}
]
}
},
"ECSInstanceSecurityGroupApps" : {
"Type" : "AWS::EC2::SecurityGroupIngress",
"DependsOn" : "ECSInstanceSecurityGroup",
"Properties" : {
"GroupId" : { "Ref" : "ECSInstanceSecurityGroup" },
"IpProtocol" : "tcp",
"FromPort" : 0,
"ToPort" : 65535,
"SourceSecurityGroupId" : { "Ref" : "ECSInstanceSecurityGroup" }
}
},
"ECSInstanceSecurityGroupAppsSSH" : {
"Type" : "AWS::EC2::SecurityGroupIngress",
"DependsOn" : "ECSInstanceSecurityGroup",
"Properties" : {
"GroupId" : { "Ref" : "ECSInstanceSecurityGroup" },
"IpProtocol" : "tcp",
"FromPort" : 22,
"ToPort" : 22,
"CidrIp" : "0.0.0.0/0"
}
},
"ECSInstanceSecurityGroupAppsWeb" : {
"Type" : "AWS::EC2::SecurityGroupIngress",
"DependsOn" : "ECSInstanceSecurityGroup",
"Properties" : {
"GroupId" : { "Ref" : "ECSInstanceSecurityGroup" },
"IpProtocol" : "tcp",
"FromPort" : 80,
"ToPort" : 80,
"CidrIp" : "0.0.0.0/0"
}
},
"LaunchConfig": {
"Type": "AWS::AutoScaling::LaunchConfiguration",
"Metadata" : {
"Comment" : "Install a simple application",
"AWS::CloudFormation::Init" : {
"config" : {
"files" : {
"/etc/init/ecssd_agent.conf" : {
"source" : "https://raw.githubusercontent.com/hyfn/service-discovery-ecs-dns/1.0/ecssd_agent.conf",
"mode" : "000644",
"owner" : "root",
"group" : "root"
},
"/usr/local/bin/ecssd_agent": {
"source" : "https://github.com/hyfn/service-discovery-ecs-dns/releases/download/1.2/ecssd_agent",
"mode" : "000755",
"owner" : "root",
"group" : "root"
}
}
}
}
},
"Properties": {
"KeyName": { "Ref": "KeyName" },
"ImageId": { "Fn::FindInMap" : [ "AmazonLinuxAMI", { "Ref" : "AWS::Region" }, "AMI" ] },
"SecurityGroups": [ { "Ref": "ECSInstanceSecurityGroup" } ],
"InstanceType": { "Ref": "ECSInstanceType" },
"AssociatePublicIpAddress" : "true",
"IamInstanceProfile": { "Fn::GetAtt" : ["InstanceProfile", "Arn"] },
"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
"#!/bin/bash\n",
"echo ECS_CLUSTER=", {"Ref": "ECSCluster"}, " >> /etc/ecs/ecs.config\n",
"yum install -y aws-cfn-bootstrap\n",
"yum update -y aws-cfn-bootstrap\n",
"/opt/aws/bin/cfn-init -v ",
" --stack ", { "Ref" : "AWS::StackName" },
" --resource LaunchConfig ",
" --region ", { "Ref" : "AWS::Region" }, "\n",
"start ecssd_agent\n"
]]}}
}
},
"ServerGroup": {
"Type": "AWS::AutoScaling::AutoScalingGroup",
"Properties": {
"AvailabilityZones" : [
{ "Fn::GetAtt" : [ "PublicSubnet1", "AvailabilityZone" ] },
{ "Fn::GetAtt" : [ "PublicSubnet2", "AvailabilityZone" ] }
],
"VPCZoneIdentifier" : [
{ "Ref" : "PublicSubnet1" },
{ "Ref" : "PublicSubnet2" }
],
"LaunchConfigurationName": { "Ref": "LaunchConfig" },
"MinSize": {"Ref": "ECSClusterInstanceCount"},
"MaxSize": {"Ref": "ECSClusterInstanceCount"},
"DesiredCapacity": {"Ref": "ECSClusterInstanceCount"},
"Tags" : [
{ "Key" : "Application", "Value" : { "Ref" : "AWS::StackName" }, "PropagateAtLaunch" : "true" },
{ "Key" : "Name", "Value" : "ECS refarch instance", "PropagateAtLaunch" : "true" }
]
}
},
"InstanceRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version" : "2012-10-17",
"Statement": [ {
"Effect": "Allow",
"Principal": {
"Service": [ "ec2.amazonaws.com" ]
},
"Action": [ "sts:AssumeRole" ]
} ]
},
"ManagedPolicyArns": [
"arn:aws:iam::aws:policy/service-role/AmazonEC2ContainerServiceforEC2Role",
"arn:aws:iam::aws:policy/AmazonRoute53FullAccess",
"arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryPowerUser"
],
"Path": "/"
}
},
"ECSRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version" : "2012-10-17",
"Statement": [ {
"Effect": "Allow",
"Principal": {
"Service": [ "ecs.amazonaws.com" ]
},
"Action": [ "sts:AssumeRole" ]
} ]
},
"ManagedPolicyArns": [
"arn:aws:iam::aws:policy/service-role/AmazonEC2ContainerServiceRole"
],
"Path": "/"
}
},
"InstanceProfile": {
"Type": "AWS::IAM::InstanceProfile",
"Properties": {
"Path": "/",
"Roles": [ {
"Ref": "InstanceRole"
} ]
}
},
"ECSCluster": {
"Type": "AWS::ECS::Cluster",
"DependsOn" : "HostedZone"
}
}
}