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cloudformation-template-ipsec.json
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cloudformation-template-ipsec.json
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{
"AWSTemplateFormatVersion": "2010-09-09",
"Mappings": {
"OS": {
"Ubuntu1804": {
"HelperInstallationCommands": "export DEBIAN_FRONTEND=noninteractive\napt-get -yq update\napt-get -yq install python3-pip\npython3 -m pip install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-py3-latest.tar.gz\n"
},
"Ubuntu2004": {
"HelperInstallationCommands": "export DEBIAN_FRONTEND=noninteractive\napt-get -yq update\napt-get -yq install python3-pip\npython3 -m pip install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-py3-latest.tar.gz\n"
},
"Debian9": {
"HelperInstallationCommands": "export DEBIAN_FRONTEND=noninteractive\napt-get -yq update\napt-get -yq install python3-pip\npython3 -m pip install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-py3-latest.tar.gz\n"
},
"CentOS7": {
"HelperInstallationCommands": "yum -y install python3 wget\npython3 -m pip install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-py3-latest.tar.gz\n"
},
"CentOS8": {
"HelperInstallationCommands": "yum -y install python3 wget\npython3 -m pip install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-py3-latest.tar.gz\n"
},
"AmazonLinux2": {
"HelperInstallationCommands": "export PATH=\"$PATH:/opt/aws/bin\"\n"
}
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"0a162613-8f2e-4864-be99-75d946934a4a": {
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"id": "40c2d4e7-f01a-45b2-8878-a06680aa2216"
},
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}
}
},
"Resources": {
"VpnVpc": {
"Type": "AWS::EC2::VPC",
"Properties": {
"CidrBlock": "10.0.0.0/24"
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "0a162613-8f2e-4864-be99-75d946934a4a"
}
}
},
"VpnSubnet": {
"Type": "AWS::EC2::Subnet",
"Properties": {
"VpcId": {
"Ref": "VpnVpc"
},
"CidrBlock": "10.0.0.0/24",
"MapPublicIpOnLaunch": true,
"AvailabilityZone": {
"Fn::Select": [
"0",
{
"Fn::GetAZs": ""
}
]
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "5198eb6d-da4f-43e2-8a4b-b9bff02b26a2"
}
},
"DependsOn": [
"VpnVpc",
"VpcInternetGateway"
]
},
"VpnRouteTable": {
"Type": "AWS::EC2::RouteTable",
"Properties": {
"VpcId": {
"Ref": "VpnVpc"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "4731d93c-f3fc-420a-b535-f0b99840f356"
}
},
"DependsOn": [
"VpnSubnet"
]
},
"PublicInternetRoute": {
"Type": "AWS::EC2::Route",
"Properties": {
"DestinationCidrBlock": "0.0.0.0/0",
"RouteTableId": {
"Ref": "VpnRouteTable"
},
"GatewayId": {
"Ref": "VpcInternetGateway"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "5262ea47-2337-4be8-a4d1-1f0af38a1731"
}
},
"DependsOn": [
"VpnRouteTable",
"VpcInternetGateway",
"InternetGatewayAttachment"
]
},
"VpnInstance": {
"Type": "AWS::EC2::Instance",
"CreationPolicy": {
"ResourceSignal": {
"Timeout": "PT15M"
}
},
"Properties": {
"UserData": {
"Fn::Base64": {
"Fn::Join": [
"",
[
"#!/bin/bash -xe\n",
"trap 'cfn-signal -e 1 ",
" --stack ",
{
"Ref": "AWS::StackName"
},
" --resource VpnInstance ",
" --region ",
{
"Ref": "AWS::Region"
},
"' ERR\n",
"sleep 60\n",
{
"Fn::FindInMap": [
"OS",
{
"Ref": "OS"
},
"HelperInstallationCommands"
]
},
"export VPN_IPSEC_PSK='",
{
"Ref": "VpnIpsecPsk"
},
"'\n",
"export VPN_USER='",
{
"Ref": "VpnUser"
},
"'\n",
"export VPN_PASSWORD='",
{
"Ref": "VpnPassword"
},
"'\n",
"wget -t 3 -T 30 -nv -O vpn.sh https://git.io/vpnsetup\n",
"sh vpn.sh\n",
"cfn-signal -e 0 ",
" --stack ",
{
"Ref": "AWS::StackName"
},
" --resource VpnInstance ",
" --region ",
{
"Ref": "AWS::Region"
},
"\n"
]
]
}
},
"SecurityGroupIds": [
{
"Fn::GetAtt": [
"VpnSecurityGroup",
"GroupId"
]
}
],
"SubnetId": {
"Ref": "VpnSubnet"
},
"AvailabilityZone": {
"Fn::Select": [
"0",
{
"Fn::GetAZs": ""
}
]
},
"InstanceType": {
"Ref": "InstanceType"
},
"KeyName": {
"Fn::GetAtt": [
"KeyPairInfo",
"KeyName"
]
},
"ImageId": {
"Fn::GetAtt": [
"AMIInfo",
"AMIId"
]
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "40c2d4e7-f01a-45b2-8878-a06680aa2216"
}
},
"DependsOn": [
"VpnRouteTable",
"VpnServerVolume",
"KeyPairCreation",
"AMIInfoFunction",
"VpnSecurityGroup"
]
},
"VpnSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"GroupDescription": "The VPN Security Group, allowing ingress UDP traffic at port 4500 and 500.",
"GroupName": "VpnSecurityGroup",
"VpcId": {
"Ref": "VpnVpc"
},
"SecurityGroupIngress": [
{
"CidrIp": "0.0.0.0/0",
"IpProtocol": "tcp",
"FromPort": 22,
"ToPort": 22
},
{
"CidrIp": "0.0.0.0/0",
"IpProtocol": "udp",
"FromPort": 500,
"ToPort": 500
},
{
"CidrIp": "0.0.0.0/0",
"IpProtocol": "udp",
"FromPort": 4500,
"ToPort": 4500
}
],
"SecurityGroupEgress": [
{
"CidrIp": "0.0.0.0/0",
"IpProtocol": -1
}
]
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "ec256f27-66c3-423c-9d98-b9f0f634e7b8"
}
}
},
"VpnServerVolume": {
"Type": "AWS::EC2::Volume",
"Properties": {
"AvailabilityZone": {
"Fn::Select": [
"0",
{
"Fn::GetAZs": ""
}
]
},
"Size": 8
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "9d4cbbc2-f521-436d-bb4a-85b82cf22a2a"
}
}
},
"VpcInternetGateway": {
"Type": "AWS::EC2::InternetGateway",
"Properties": {},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "464ea4ae-199c-4917-9404-aed674a8615a"
}
},
"DependsOn": [
"VpnVpc"
]
},
"EC2SRTA4VJU5": {
"Type": "AWS::EC2::SubnetRouteTableAssociation",
"Properties": {
"RouteTableId": {
"Ref": "VpnRouteTable"
},
"SubnetId": {
"Ref": "VpnSubnet"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "5bb16646-dc1e-4661-9164-6ecc6848dc83"
}
}
},
"KeyPairCreation": {
"Type": "AWS::Lambda::Function",
"Properties": {
"Handler": "index.handler",
"Runtime": "python3.7",
"Role": {
"Fn::GetAtt": [
"LambdaExecutionRole",
"Arn"
]
},
"Timeout": 30,
"Code": {
"ZipFile": {
"Fn::Join": [
"\n",
[
"import boto3",
"import cfnresponse",
"import string",
"import random",
"'''",
"This python program should be embedded into its designated cloudformation",
"template as the inline code of one of the lambda functions.",
"'''",
"def handler(event, context):",
" try:",
" keyName = 'setup-ipsec-vpn-' + ''.join(random.SystemRandom().choice(string.ascii_letters + string.digits) for _ in range(10))",
" region = event['ResourceProperties']['Region']",
" ec2 = boto3.client('ec2',region)",
" response = ec2.create_key_pair(",
" KeyName=keyName",
" )",
" keyMaterial = response['KeyMaterial']",
" cfnresponse.send(event, context, cfnresponse.SUCCESS, {'KeyMaterial':keyMaterial, 'KeyName':keyName}, 'KeyPairInfo')",
" except Exception:",
" cfnresponse.send(event, context, cfnresponse.FAILED, {})"
]
]
}
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "99fce86e-18b8-4b1b-a572-7bef3c5cece7"
}
},
"DependsOn": [
"LambdaExecutionRole"
]
},
"AMIInfo": {
"Type": "Custom::AMIInfo",
"Properties": {
"Region": {
"Ref": "AWS::Region"
},
"ServiceToken": {
"Fn::GetAtt": [
"AMIInfoFunction",
"Arn"
]
},
"Distribution": {
"Ref": "OS"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "2c5cc5a9-5a17-4d54-80ea-56e204c9c1a1"
}
},
"DependsOn": [
"AMIInfoFunction"
]
},
"AMIInfoFunction": {
"Type": "AWS::Lambda::Function",
"Properties": {
"Handler": "index.handler",
"Runtime": "python3.7",
"Role": {
"Fn::GetAtt": [
"LambdaExecutionRole",
"Arn"
]
},
"Code": {
"ZipFile": {
"Fn::Join": [
"\n",
[
"import boto3",
"import cfnresponse",
"'''",
"This python script should be embeded into its designated cloudformation template.",
"Its function is to sort out the correct AMI image to use for each of the distribution options available.",
"'''",
"def creation_date(e):",
" return e['CreationDate']",
"",
"def handler(event, context):",
" try:",
" regionName = event['ResourceProperties']['Region']",
" distribution = event['ResourceProperties']['Distribution']",
" ec2 = boto3.client('ec2',regionName)",
" AMIName = {",
" 'Ubuntu1804': 'ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-*',",
" 'Ubuntu2004': 'ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-server-*',",
" 'Debian9': 'debian-stretch-hvm-x86_64-gp2-*',",
" 'CentOS7': 'CentOS 7.9.2009 x86_64',",
" 'CentOS8': 'CentOS 8.3.2011 x86_64',",
" 'AmazonLinux2': 'amzn2-ami-hvm-*.*-x86_64-gp2',",
" }[distribution]",
" response = ec2.describe_images(Filters=[{'Name':'name', 'Values':[AMIName]}], Owners=['099720109477', '379101102735', '125523088429', 'amazon'])",
" images = response['Images']",
" images.sort(key=creation_date,reverse=True)",
" AMIId = images[0]['ImageId']",
" cfnresponse.send(event, context, cfnresponse.SUCCESS, {'AMIId':AMIId}, 'AMIInfo')",
" except Exception:",
" cfnresponse.send(event, context, cfnresponse.FAILED, {})"
]
]
}
},
"Timeout": 30
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "58a1ab6f-49ac-4ffa-93c7-3f708bf65871"
}
},
"DependsOn": [
"LambdaExecutionRole"
]
},
"LambdaExecutionRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": "lambda.amazonaws.com"
},
"Action": [
"sts:AssumeRole"
]
},
{
"Effect": "Allow",
"Principal": {
"Service": [
"ec2.amazonaws.com"
]
},
"Action": [
"sts:AssumeRole"
]
}
]
},
"Path": "/",
"Policies": [
{
"PolicyName": "root",
"PolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "*",
"Resource": "*"
}
]
}
}
]
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "d3fab7a7-d694-435e-930d-ff7693dffbbc"
}
}
},
"KeyPairInfo": {
"Type": "Custom::KeyPairInfo",
"Properties": {
"Region": {
"Ref": "AWS::Region"
},
"ServiceToken": {
"Fn::GetAtt": [
"KeyPairCreation",
"Arn"
]
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "e81dfbbc-e8ee-4f4b-adb0-b314056ab0b3"
}
},
"DependsOn": [
"KeyPairCreation"
]
},
"InternetGatewayAttachment": {
"Type": "AWS::EC2::VPCGatewayAttachment",
"Properties": {
"InternetGatewayId": {
"Ref": "VpcInternetGateway"
},
"VpcId": {
"Ref": "VpnVpc"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "9d3d19ab-d561-4f59-89de-73498eeeebda"
}
}
},
"EC2VA41EUF": {
"Type": "AWS::EC2::VolumeAttachment",
"Properties": {
"Device": "/dev/sdh",
"VolumeId": {
"Ref": "VpnServerVolume"
},
"InstanceId": {
"Ref": "VpnInstance"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"id": "361e0035-6c5a-48df-8339-3e31f19bf032"
}
}
}
},
"Parameters": {
"VpnUser": {
"Type": "String",
"Description": "Your VPN username"
},
"VpnIpsecPsk": {
"Type": "String",
"Description": "Your VPN IPsec PSK (pre-shared key)"
},
"VpnPassword": {
"Type": "String",
"Description": "Your VPN password"
},
"OS": {
"Type": "String",
"Description": "The OS of your VPN server. Default: Ubuntu 20.04",
"Default": "Ubuntu2004",
"AllowedValues": [
"Ubuntu2004",
"Ubuntu1804",
"Debian9",
"CentOS7",
"CentOS8",
"AmazonLinux2"
]
},
"InstanceType": {
"Type": "String",
"Description": "The instance type of your VPN server. Using t2.micro may qualify for the AWS Free Tier.",
"AllowedValues": [
"t2.micro",
"t3.nano",
"m5.large",
"t3.micro",
"t3.small",
"t2.nano",
"t2.small",
"t3a.nano",
"t3a.micro",
"t3a.small",
"m5a.large",
"t1.micro"
],
"Default": "t2.micro"
}
},
"Outputs": {
"VPNAddress": {
"Description": "This is the public IP of your newly-launched VPN server.",
"Value": {
"Fn::GetAtt": [
"VpnInstance",
"PublicIp"
]
}
},
"VPNUsername": {
"Description": "Your VPN username",
"Value": {
"Ref": "VpnUser"
}
},
"VPNPassword": {
"Description": "Your VPN password",
"Value": {
"Ref": "VpnPassword"
}
},
"VPNKey": {
"Description": "Your VPN IPsec PSK (pre-shared key)",
"Value": {
"Ref": "VpnIpsecPsk"
}
},
"EC2PrivateKeyMaterial": {
"Description": "The content of your private key for accessing the VPN server via SSH. Save it as a file for use when connecting.",
"Value": {
"Fn::GetAtt": [
"KeyPairInfo",
"KeyMaterial"
]
}
},
"NextStep": {
"Description": "Learn how to configure VPN clients.",
"Value": "https://github.com/hwdsl2/setup-ipsec-vpn#next-steps"
}
}
}