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Rails_Single_Instance_With_RDS.template
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Rails_Single_Instance_With_RDS.template
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{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "AWS CloudFormation Sample Template Rails_Single_Instance_With_RDS: Create a Ruby on Rails stack using a single EC2 instance for the web server and a MySQL Amazon RDS database instance for the backend data store. This template demonstrates using the AWS CloudFormation bootstrap scripts to install the packages and files at instance launch time. **WARNING** This template creates an Amazon EC2 instance and an Amazon RDS DB instance. You will be billed for the AWS resources used if you create a stack from this template.",
"Parameters" : {
"KeyName" : {
"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."
},
"DBName": {
"Default": "MyDatabase",
"Description" : "MySQL database name",
"Type": "String",
"MinLength": "1",
"MaxLength": "64",
"AllowedPattern" : "[a-zA-Z][a-zA-Z0-9]*",
"ConstraintDescription" : "must begin with a letter and contain only alphanumeric characters."
},
"DBUsername": {
"NoEcho": "true",
"Description" : "Username for MySQL database access",
"Type": "String",
"MinLength": "1",
"MaxLength": "16",
"AllowedPattern" : "[a-zA-Z][a-zA-Z0-9]*",
"ConstraintDescription" : "must begin with a letter and contain only alphanumeric characters."
},
"DBPassword": {
"NoEcho": "true",
"Description" : "Password for MySQL database access",
"Type": "String",
"MinLength": "8",
"MaxLength": "41",
"AllowedPattern" : "[a-zA-Z0-9]*",
"ConstraintDescription" : "must contain only alphanumeric characters."
},
"DBAllocatedStorage": {
"Default": "5",
"Description" : "The size of the database (Gb)",
"Type": "Number",
"MinValue": "5",
"MaxValue": "1024",
"ConstraintDescription" : "must be between 5 and 1024Gb."
},
"DBInstanceClass": {
"Default": "db.m1.small",
"Description" : "The database instance type",
"Type": "String",
"AllowedValues" : [ "db.m1.small", "db.m1.large", "db.m1.xlarge", "db.m2.xlarge", "db.m2.2xlarge", "db.m2.4xlarge" ],
"ConstraintDescription" : "must select a valid database instance type."
},
"InstanceType" : {
"Description" : "WebServer EC2 instance type",
"Type" : "String",
"Default" : "m1.small",
"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."
},
"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."
}
},
"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" : { "32" : "ami-31814f58", "64" : "ami-1b814f72", "64HVM" : "ami-0da96764" },
"us-west-2" : { "32" : "ami-38fe7308", "64" : "ami-30fe7300", "64HVM" : "NOT_YET_SUPPORTED" },
"us-west-1" : { "32" : "ami-11d68a54", "64" : "ami-1bd68a5e", "64HVM" : "NOT_YET_SUPPORTED" },
"eu-west-1" : { "32" : "ami-973b06e3", "64" : "ami-953b06e1", "64HVM" : "NOT_YET_SUPPORTED" },
"ap-southeast-1" : { "32" : "ami-b4b0cae6", "64" : "ami-beb0caec", "64HVM" : "NOT_YET_SUPPORTED" },
"ap-southeast-2" : { "32" : "ami-b3990e89", "64" : "ami-bd990e87", "64HVM" : "NOT_YET_SUPPORTED" },
"ap-northeast-1" : { "32" : "ami-0644f007", "64" : "ami-0a44f00b", "64HVM" : "NOT_YET_SUPPORTED" },
"sa-east-1" : { "32" : "ami-3e3be423", "64" : "ami-3c3be421", "64HVM" : "NOT_YET_SUPPORTED" }
}
},
"Resources" : {
"WebServer": {
"Type": "AWS::EC2::Instance",
"Metadata" : {
"Comment1" : "Configure the bootstrap helpers to install the Rails",
"Comment2" : "The application is downloaded from the CloudFormationRailsSample.zip file",
"AWS::CloudFormation::Init" : {
"config" : {
"packages" : {
"yum" : {
"gcc-c++" : [],
"make" : [],
"ruby-devel" : [],
"rubygems" : [],
"mysql" : [],
"mysql-devel" : [],
"mysql-libs" : []
},
"rubygems" : {
"rack" : ["1.3.6"],
"execjs" : [],
"therubyracer" : [],
"rails" : ["3.2.14"]
}
},
"sources" : {
"/home/ec2-user/sample" : "https://s3.amazonaws.com/cloudformation-examples/CloudFormationRailsSample.zip"
},
"files" : {
"/home/ec2-user/sample/config/database.yml" : {
"content" : { "Fn::Join" : ["", [
"development:\n",
" adapter: mysql2\n",
" encoding: utf8\n",
" reconnect: false\n",
" pool: 5\n",
" database: ", { "Ref" : "DBName" }, "\n",
" username: ", { "Ref" : "DBUsername" }, "\n",
" password: ", { "Ref" : "DBPassword" }, "\n",
" host: ", { "Fn::GetAtt": [ "MySQLDatabase", "Endpoint.Address" ] }, "\n",
" port: ", { "Fn::GetAtt": [ "MySQLDatabase", "Endpoint.Port" ] }, "\n"
]]},
"mode" : "000644",
"owner" : "root",
"group" : "root"
}
}
}
}
},
"Properties": {
"ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },
{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
"InstanceType" : { "Ref" : "InstanceType" },
"SecurityGroups" : [ {"Ref" : "WebServerSecurityGroup"} ],
"KeyName" : { "Ref" : "KeyName" },
"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
"#!/bin/bash -v\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" : "WaitHandle" }, "'\n",
" exit 1\n",
"}\n",
"# Install Rails packages\n",
"/opt/aws/bin/cfn-init -s ", { "Ref" : "AWS::StackId" }, " -r WebServer ",
" --region ", { "Ref" : "AWS::Region" }, " || error_exit 'Failed to run cfn-init'\n",
"# Install anu other Gems, create the database and run a migration\n",
"cd /home/ec2-user/sample\n",
"bundle install || error_exit 'Failed to install bundle'\n",
"rake db:migrate || error_exit 'Failed to execute database migration'\n",
"# Startup the rails server\n",
"rails server -d\n",
"echo \"cd /home/ec2-user/sample\" >> /etc/rc.local\n",
"echo \"rails server -d\" >> /etc/rc.local\n",
"# All is well so signal success\n",
"/opt/aws/bin/cfn-signal -e 0 -r \"Rails application setup complete\" '", { "Ref" : "WaitHandle" }, "'\n"
]]}}
}
},
"WaitHandle" : {
"Type" : "AWS::CloudFormation::WaitConditionHandle"
},
"WaitCondition" : {
"Type" : "AWS::CloudFormation::WaitCondition",
"DependsOn" : "WebServer",
"Properties" : {
"Handle" : {"Ref" : "WaitHandle"},
"Timeout" : "1500"
}
},
"WebServerSecurityGroup" : {
"Type" : "AWS::EC2::SecurityGroup",
"Properties" : {
"GroupDescription" : "Enable HTTP access via port 3000 plus SSH access",
"SecurityGroupIngress" : [
{"IpProtocol" : "tcp", "FromPort" : "3000", "ToPort" : "3000", "CidrIp" : "0.0.0.0/0"},
{"IpProtocol" : "tcp", "FromPort" : "22", "ToPort" : "22", "CidrIp" : { "Ref" : "SSHLocation"}}
]
}
},
"DBSecurityGroup": {
"Type": "AWS::RDS::DBSecurityGroup",
"Properties": {
"GroupDescription": "Grant database access to web server",
"DBSecurityGroupIngress": {
"EC2SecurityGroupName": { "Ref": "WebServerSecurityGroup" }
}
}
},
"MySQLDatabase": {
"Type": "AWS::RDS::DBInstance",
"Properties": {
"Engine" : "MySQL",
"DBName" : { "Ref": "DBName" },
"MultiAZ" : "false",
"MasterUsername": { "Ref": "DBUsername" },
"MasterUserPassword": { "Ref" : "DBPassword" },
"DBInstanceClass": { "Ref" : "DBInstanceClass" },
"DBSecurityGroups": [ { "Ref": "DBSecurityGroup" } ],
"AllocatedStorage": { "Ref" : "DBAllocatedStorage" }
}
}
},
"Outputs" : {
"WebsiteURL" : {
"Value" : { "Fn::Join" : ["", ["http://", { "Fn::GetAtt" : [ "WebServer", "PublicDnsName" ]}, ":3000" ]] },
"Description" : "URL for newly created Rails application"
}
}
}