aws-recipe-user こんにちは！ JQです。
前回は『CloudFormation編～CloudFormationでVPCパート②～』 ということで、CloudFormationのStackでVPCを構築してみました。
今回は『CloudFormation編～CloudFormationでVPCパート③～』と題して、CloudFormationのStackでVPCにWEBインスタンスを構築してみたいと思います。
Templateの作成
4 インスタンス構築Templateの作成
インスタンス構築のTemplateを作成します。
下記テンプレートではhttpとphpをインストールしてphpinfoのファイルを設置するWEBサーバを起動します。
「Parameters」で指定する項目は以下になります。
| InstanceType | インスタンスタイプ |
|---|---|
| WebKeyName | SSHキー |
| SSHLocation | SSHの許可IP（デフォルトは0.0.0.0/0） |
| VpcId | VPCのID |
| SubnetId | SubnetのID |
「Mappings」はAmazonLinuxのAMIになります。
CloudFormationの「Metadata」を利用してパッケージのインストールと起動にphpinfoファイルの作成を行っております。
※「UserData」で上記のトリガーが行われます。
成功した場合には「Outputs」で次の項目が出力されます。
| WebInstanceID | 作成されたインスタンスのInstanceID |
|---|---|
| AZ | 作成されたインスタンスのゾーン |
| URL | 作成されたインスタンスにアクセスする為のURL |
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{ { "AWSTemplateFormatVersion" : "2010-09-09", "Description" : "AWS CloudFormation Template : Build to instance. AmazonLinux. ", "Parameters" : { "InstanceType" : { "Description" : "WebServer EC2 instance type", "Type" : "String", "Default" : "t1.micro", "AllowedValues" : [ "t1.micro","m1.small","m1.medium","m1.large","m1.xlarge","m2.xlarge","m2.2xlarge","m2.4xlarge","m3.xlarge","m3.2xlarge","c1.medium","c1.xlarge","cc1.4xlarge","cc2.8xlarge","cg1.4xlarge"], "ConstraintDescription" : "must be a valid EC2 instance type." }, "WebKeyName" : { "Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances", "Type" : "String", "MinLength": "1", "MaxLength": "64", "AllowedPattern" : "[-_ a-zA-Z0-9]*", "ConstraintDescription" : "can contain only alphanumeric characters, spaces, dashes and underscores." }, "SSHLocation" : { "Description" : "The IP address range that can be used to SSH to the EC2 instances", "Type": "String", "MinLength": "9", "MaxLength": "18", "Default": "0.0.0.0/0", "AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})", "ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x." }, "VpcId" : { "Type" : "String", "Description" : "VpcId of your existing Virtual Private Cloud (VPC)" }, "SubnetId" : { "Type" : "String", "Description" : "SubnetId of an existing Public facing subnet in your Virtual Private Cloud (VPC)" } }, "Mappings" : { "AWSInstanceType2Arch" : { "t1.micro" : { "Arch" : "64" }, "m1.small" : { "Arch" : "64" }, "m1.medium" : { "Arch" : "64" }, "m1.large" : { "Arch" : "64" }, "m1.xlarge" : { "Arch" : "64" }, "m2.xlarge" : { "Arch" : "64" }, "m2.2xlarge" : { "Arch" : "64" }, "m2.4xlarge" : { "Arch" : "64" }, "m3.xlarge" : { "Arch" : "64" }, "m3.2xlarge" : { "Arch" : "64" }, "c1.medium" : { "Arch" : "64" }, "c1.xlarge" : { "Arch" : "64" }, "cc1.4xlarge" : { "Arch" : "64HVM" }, "cc2.8xlarge" : { "Arch" : "64HVM" }, "cg1.4xlarge" : { "Arch" : "64HVM" } }, "AWSRegionArch2AMI" : { "us-east-1" : { "64" : "ami-35792c5c" }, "us-west-1" : { "64" : "ami-687b4f2d" }, "us-west-2" : { "64" : "ami-d03ea1e0" }, "eu-west-1" : { "64" : "ami-149f7863" }, "sa-east-1" : { "64" : "ami-9f6ec982" }, "ap-southeast-1" : { "64" : "ami-14f2b946" }, "ap-southeast-2" : { "64" : "ami-a148d59b" }, "ap-northeast-1" : { "64" : "ami-3561fe34" } } }, "Resources" : { "WebSecurityGroup" : { "Type" : "AWS::EC2::SecurityGroup", "Properties" : { "VpcId" : { "Ref" : "VpcId" }, "GroupDescription" : "Enable SSH access via port 22", "SecurityGroupIngress" : [ { "IpProtocol" : "tcp", "FromPort" : "22", "ToPort" : "22", "CidrIp" : "219.111.8.217/32" }, { "IpProtocol" : "tcp", "FromPort" : "80", "ToPort" : "80", "CidrIp" : "0.0.0.0/0" } ] } }, "WebHost" : { "Type" : "AWS::EC2::Instance", "Metadata": { "AWS::CloudFormation::Init": { "config": { "packages": { "yum": { "httpd": [], "php" : [] } }, "files" : { "/var/www/html/index.php" : { "content" : { "Fn::Join" : ["", [ "<?php phpinfo(); ?>" ]]}, "mode" : "000644", "owner" : "root", "group" : "root" } }, "services" : { "sysvinit" : { "httpd" : { "enabled" : "true", "ensureRunning" : "true" } } } } } }, "Properties" : { "ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" },"Arch" ] } ] }, "KeyName" : { "Ref" : "WebKeyName" }, "NetworkInterfaces" : [{ "AssociatePublicIpAddress" : "true", "GroupSet" : [{ "Ref" : "WebSecurityGroup" }], "SubnetId" : { "Ref" : "SubnetId" }, "DeviceIndex" : "0" }], "UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [ "#!/bin/bash\n", "yum update -y aws-cfn-bootstrap \n", "# Helper function\n", "function error_exit\n", "{\n", " /opt/aws/bin/cfn-signal -e 1 -r \"$1\" '", { "Ref" : "WebHostHandle" }, "'\n", " exit 1\n", "}\n", "# Install the simple web page\n", "/opt/aws/bin/cfn-init -s ", { "Ref" : "AWS::StackId" }, " -r WebHost ", " --region ", { "Ref" : "AWS::Region" }, " || error_exit 'Failed to run cfn-init'\n", "# All done so signal success\n", "/opt/aws/bin/cfn-signal -e 0 -r \"WebHost setup complete\" '", { "Ref" : "WebHostHandle" }, "'\n" ]]}}, "Tags": [ { "Key" : "Name", "Value": "WebHost" } ] } }, "WebHostHandle" : { "Type" : "AWS::CloudFormation::WaitConditionHandle" }, "WebControllerCondition" : { "Type" : "AWS::CloudFormation::WaitCondition", "DependsOn" : "WebHost", "Properties" : { "Handle" : { "Ref" : "WebHostHandle" }, "Timeout" : "600" } } }, "Outputs" : { "WebInstanceID" : { "Description" : "Web Instance ID", "Value" : {"Ref": "WebHost"} }, "AZ" : { "Description" : "Availability Zone of the newly created EC2 instance", "Value" : { "Fn::GetAtt" : [ "WebHost", "AvailabilityZone" ] } }, "URL" : { "Description" : "URL of the sample website", "Value" : { "Fn::Join" : [ "", ["http://", { "Fn::GetAtt" : ["WebHost", "PublicIp"] }]]} } } } |
いかがでしたでしょうか？
次回は『CloudFormation編～CloudFormationでVPCパート④～』ということで、実際に今回のテンプレートを試してみたいと思います。
お楽しみに！
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