AWS CloudFormation WordPress 3 Japanese version on ubuntu 10.04 LTS (Lucid Lynx) EBS-backed Instance All-in-One template

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CloudFormation

CloudFormation の勉強のために作ってみました。どうせつくるなら使える構成なるように工夫してみました。結局 user-data のお化けになってしましましたね。push 型デプロイの限界ですね。やっぱり CMDB というか、chef, puppet で push+pull でデプロイするのがいいですねぇ。CloudFormation はその意味では有用なので勉強しナイト。

ubuntu + WordPress All-In-One CloudFormation Template

ubuntu Generic AMI から debian/ubuntu のパッケージ管理の流儀にのっとって構成するようにしました。また EC2 特有の IP address 空間に対応する為に Split DNS を構成しています。WordPress については、現在の ubuntu パッケージが古いので、パッケージは導入せず、debian のお作法は踏襲して独自に構成しています。User-data の途中のバイナリーデータは Split DNS の構成ファイル群を tar で固めたものです。(Emacsian でない方は user-data の最後の行は削除してください ;)

http://public.webops.jp/ubuntu-wordpress3-jp-all-in-one.template

{
  "AWSTemplateFormatVersion" : "2010-09-09",

  "Description" : "WordPress 3 Japanese version on ubuntu 10.04 LTS (Lucid Lynx) EBS-backed Instance All-in-One template",

  "Parameters": {
    "KeyName": {
      "Type": "String",
      "Description" : "Name of an existing EC2 KeyPair to enable SSH access into the WordPress web server"
    },
    "MyHostName": {
      "Default": "www.example.com",
      "Type": "String",
      "Description": "Server hostname"
    },
    "MyDomainName": {
      "Default": "example.com",
      "Type": "String",
      "Description": "Server domain name"
    },
    "MySQLrootPwd": {
      "Default": "admin",
      "NoEcho": "true",
      "Description" : "MySQL root password",
      "Type": "String",
      "MinLength": "1",
      "MaxLength": "41",
      "AllowedPattern" : "[a-zA-Z0-9]*",
      "ConstraintDescription" : "must contain only alphanumeric characters."
    },
    "WordPressDBName": {
      "Default": "wordpress",
      "Description" : "The WordPress 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."
    },
    "PhpMyAdminPwd": {
      "Default": "padmin",
      "NoEcho": "true",
      "Description" : "phpMyAdmin password",
      "Type": "String",
      "MinLength": "1",
      "MaxLength": "41",
      "AllowedPattern" : "[a-zA-Z0-9]*",
      "ConstraintDescription" : "must contain only alphanumeric characters."
    },
    "InstanceType": {
      "Default": "t1.micro",
      "Type": "String",
      "Description" : "EC2 instance type, e.g. m1.small, m1.large, etc"
    },
    "WebServerPort": {
      "Default": "80",
      "Type": "String",
      "Description" : "TCP/IP port for the WordPress web server"
    }
  },

  "Mappings" : {
    "AWSInstanceType2Arch" : {
      "t1.micro"    : { "Arch" : "64" },
      "m1.small"    : { "Arch" : "32" },
      "m1.large"    : { "Arch" : "64" },
      "m1.xlarge"   : { "Arch" : "64" },
      "m2.xlarge"   : { "Arch" : "64" },
      "m2.2xlarge"  : { "Arch" : "64" },
      "m2.4xlarge"  : { "Arch" : "64" },
      "c1.medium"   : { "Arch" : "32" },
      "c1.xlarge"   : { "Arch" : "64" },
      "cc1.4xlarge" : { "Arch" : "64" }
    },
    "AWSRegionArch2AMI" : {
      "us-east-1" : { "32" : "ami-2cc83145", "64" : "ami-2ec83147" },
      "us-west-1" : { "32" : "ami-831d4fc6", "64" : "ami-8d1d4fc8" },
      "eu-west-1" : { "32" : "ami-4090a634", "64" : "ami-4290a636" },
      "ap-southeast-1" : { "32" : "ami-e8c4bdba", "64" : "ami-eec4bdbc" },
      "ap-northeast-1" : { "32" : "ami-624ee463", "64" : "ami-644ee465" }
    }
  },

  "Resources" : {
    "Ec2Instance" : {
      "Type" : "AWS::EC2::Instance",
      "Properties" : {
        "KeyName" : { "Ref" : "KeyName" },
        "SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
        "InstanceType" : { "Ref" : "InstanceType" },
        "ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },
                                          { "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
        "UserData" : { "Fn::Base64" : { "Fn::Join" : ["",[
            "#!/bin/bash -ex","¥n",
            "echo 'Asia/Tokyo' > /etc/timezone","¥n",
            "dpkg-reconfigure --frontend noninteractive tzdata","¥n",
            "service rsyslog restart","¥n",
            "service cron restart","¥n",
            "aptitude update","¥n",
            "aptitude -y safe-upgrade","¥n",
            "aptitude -y install bind9","¥n",
            "aptitude install python-ipy","¥n",
            "cat <<EOF | base64 -d > /tmp/Ec2SplitDnsKitLite.tar.bz2","¥n",
            "QlpoOTFBWSZTWafs3lUABr9/1d6wAQB+5///f+/eSv////oQEAACAIIAAgAoYAwfBQKhFAAAqgAA","¥n",
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            "m4g4CDVrFsICeSoBo39nf6IS2mTaF3GOl5Xo+twetIQ/4u5IpwoSFP2byqA=","¥n",
            "EOF","¥n",
            "tar xfj /tmp/Ec2SplitDnsKitLite.tar.bz2 -C /tmp/","¥n",
            "mkdir -p /usr/local/etc/init","¥n",
            "mkdir -p /usr/local/etc/bind/templates","¥n",
            "cp /tmp/Ec2SplitDnsKitLite/init/ec2-set-hosts /usr/local/etc/init/","¥n",
            "cp /tmp/Ec2SplitDnsKitLite/init/ec2-set-dns-zone /usr/local/etc/init/","¥n",
            "cp /tmp/Ec2SplitDnsKitLite/templates/* /usr/local/etc/bind/templates/","¥n",
            "mv /etc/bind/named.conf.local /etc/bind/named.conf.local.deb-orig","¥n",
            "cp /tmp/Ec2SplitDnsKitLite/bind/named.conf.local /etc/bind/","¥n",
            "mv /etc/bind/named.conf.options /etc/bind/named.conf.options.deb-orig","¥n",
            "cp /tmp/Ec2SplitDnsKitLite/bind/named.conf.options /etc/bind/","¥n",
            "chmod +x /usr/local/etc/init/ec2-set-hosts","¥n",
            "chmod +x /usr/local/etc/init/ec2-set-dns-zone","¥n",
            "ln -s /usr/local/etc/init/ec2-set-hosts /etc/rc2.d/S12ec2-set-hosts","¥n",
            "ln -s /usr/local/etc/init/ec2-set-dns-zone /etc/rc2.d/S13ec2-set-dns-zone","¥n",
            "echo ", {"Ref" : "MyHostName"}, " > /etc/hostname","¥n",
            "/usr/local/etc/init/ec2-set-hosts","¥n",
            "/usr/local/etc/init/ec2-set-dns-zone","¥n",
            "/bin/hostname -F /etc/hostname","¥n",
            "mv /etc/dhcp3/dhclient.conf /etc/dhcp3/dhclient.conf.deb-orig","¥n",
            "sed -e 's/__DOMAIN__/", {"Ref" : "MyDomainName"}, "/g' /tmp/Ec2SplitDnsKitLite/dhcp3/dhclient.conf.tmpl > /etc/dhcp3/dhclient.conf","¥n",
            "mv /etc/resolv.conf /etc/resolv.conf.deb-orig","¥n",
            "sed -e 's/__DOMAIN__/", {"Ref" : "MyDomainName"}, "/g' /tmp/Ec2SplitDnsKitLite/dhcp3/resolv.conf.tmpl > /etc/resolv.conf","¥n",
            "/etc/init.d/bind9 restart","¥n",
            "service rsyslog restart","¥n",
            "service cron restart","¥n",
            "echo mysql-server-5.1 mysql-server/root_password password ", {"Ref" : "MySQLrootPwd"}, " | debconf-set-selections","¥n",
            "echo mysql-server-5.1 mysql-server/root_password seen true | debconf-set-selections","¥n",
            "echo mysql-server-5.1 mysql-server/root_password_again password ", {"Ref" : "MySQLrootPwd"}, " | debconf-set-selections","¥n",
            "echo mysql-server-5.1 mysql-server/root_password_again seen true | debconf-set-selections","¥n",
            "echo mysql-server-5.1 mysql-server/start_on_boot boolean true | debconf-set-selections","¥n",
            "aptitude -y install mysql-server-5.1","¥n",
            "aptitude -y install wordpress","¥n",
            "a2enmod rewrite","¥n",
            "/etc/init.d/apache2 stop","¥n",
            "/bin/bash /usr/share/doc/wordpress/examples/setup-mysql -n wordpress localhost","¥n",
            "mv /etc/wordpress /etc/wordpress-cfn","¥n",
            "mv /usr/share/doc/wordpress /etc/wordpress-cfn/doc","¥n",
            "apt-get -y remove wordpress","¥n",
            "aptitude keep-all","¥n",
            "aptitude -y purge wordpress","¥n",
            "rm /var/www/localhost","¥n",
            "rm -rf /var/www/wp-uploads","¥n",
            "cat /etc/wordpress-cfn/config-localhost.php | fgrep -v '/localhost' > /etc/wordpress-cfn/config-cfn.php","¥n",
            "chmod 640 /etc/wordpress-cfn/config-cfn.php","¥n",
            "chgrp www-data /etc/wordpress-cfn/config-cfn.php","¥n",
            "mv /etc/wordpress-cfn/wp-config.php /etc/wordpress-cfn/wp-config.php.deb-orig","¥n",
            "cat <<EOF > /etc/wordpress-cfn/wp-config.php","¥n",
            "<?php","¥n",
            "require_once('/etc/wordpress-cfn/config-cfn.php');","¥n",
            "¥n",
            "define('WP_CORE_UPDATE', true);","¥n",
            "define('DB_CHARSET', 'utf8');","¥n",
            "define('DB_COLLATE', '');","¥n",
            "¥n",
            "define('ABSPATH', '/var/www/blog/');","¥n",
            "define('WP_DEBUG', false);","¥n",
            "define('WPLANG', 'ja');","¥n",
            "¥n",
            "require_once(ABSPATH . 'wp-settings.php');","¥n",
            "?>","¥n",
            "EOF","¥n",
            "cat <<EOF > /etc/wordpress-cfn/apache2.conf","¥n",
            "<Directory /var/www/blog>","¥n",
            "¥tOptions +FollowSymLinks","¥n",
            "¥tAllowOverride FileInfo","¥n",
            "¥tDirectoryIndex index.php","¥n",
            "</Directory>","¥n",
            "EOF","¥n",
            "wget -qO - http://ja.wordpress.org/latest-ja.tar.gz > /tmp/wordpress-latest-ja.tar.gz","¥n",
            "tar xfz /tmp/wordpress-latest-ja.tar.gz -C /var/www","¥n",
            "mv /var/www/wordpress /var/www/blog","¥n",
            "chown -R www-data:www-data /var/www/blog","¥n",
            "ln -s /etc/wordpress-cfn/wp-config.php /var/www/blog/","¥n",
            "ln -s /etc/wordpress-cfn/apache2.conf /etc/apache2/conf.d/wordpress.conf","¥n",
            "echo phpmyadmin phpmyadmin/reconfigure-webserver multiselect apache2 | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/reconfigure-webserver seen true | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/dbconfig-install boolean true | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/dbconfig-install seen true | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/mysql/admin-pass password ", {"Ref" : "MySQLrootPwd"}, " | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/mysql/app-pass password ", {"Ref" : "PhpMyAdminPwd"}, " | debconf-set-selections","¥n",
            "echo phpmyadmin phpmyadmin/app-password-confirm password ", {"Ref" : "PhpMyAdminPwd"}, " | debconf-set-selections","¥n",
            "aptitude -y install phpmyadmin","¥n",
            "cat <<EOF > /etc/phpmyadmin/apache2-auth.conf","¥n",
            "<Directory /usr/share/phpmyadmin>","¥n",
            "¥t<IfModule mod_authn_file.c>","¥n",
            "¥tAuthType Basic","¥n",
            "¥tAuthName ¥"phpMyAdmin auth¥"","¥n",
            "¥tAuthUserFile /etc/phpmyadmin/htpasswd.admin","¥n",
            "¥t</IfModule>","¥n",
            "¥tRequire valid-user","¥n",
            "</Directory>","¥n",
            "EOF","¥n",
            "cp /etc/phpmyadmin/htpasswd.setup /etc/phpmyadmin/htpasswd.admin","¥n",
            "chgrp www-data /etc/phpmyadmin/htpasswd.admin","¥n",
            "ln -s /etc/phpmyadmin/apache2-auth.conf /etc/apache2/conf.d/phpmyadmin-auth.conf","¥n",
            "echo postfix postfix/main_mailer_type select Internet Site | debconf-set-selections","¥n",
            "echo postfix postfix/main_mailer_type seen true | debconf-set-selections","¥n",
            "echo postfix postfix/mailname string ", {"Ref" : "MyHostName"}, " | debconf-set-selections","¥n",
            "echo postfix postfix/mailname seen true | debconf-set-selections","¥n",
            "aptitude -y install postfix","¥n",
            "/etc/init.d/apache2 start","¥n",
            "aptitude -y install emacs23-nox","¥n" ]]}}
      }
    },

    "InstanceSecurityGroup" : {
      "Type" : "AWS::EC2::SecurityGroup",
      "Properties" : {
        "GroupDescription" : "HTTP and SSH access",
        "SecurityGroupIngress" : [ {
            "IpProtocol" : "tcp",
            "FromPort" : "22", "ToPort" : "22",
            "CidrIp" : "0.0.0.0/0"
          },{
            "IpProtocol": "tcp",
            "FromPort": { "Ref": "WebServerPort" },
            "ToPort": { "Ref": "WebServerPort" },
            "CidrIp": "0.0.0.0/0"
          }
        ]
      }
    }
  },

  "Outputs" : {
    "WordPress": {
      "Value": { "Fn::Join": [ "", [ "http://", { "Fn::GetAtt": [ "Ec2Instance", "PublicIp" ] }, "/blog/" ]]},
      "Description" : "URL of the WordPress website"
    },
    "phpMyAdmin": {
      "Value": { "Fn::Join": [ "", [ "http://", { "Fn::GetAtt": [ "Ec2Instance", "PublicIp" ] }, "/phpmyadmin/" ]]},
      "Description" : "URL of the phpMyAdmin.   *** Requires authorization by default. You can manage usernames and passwords with htpasswd command in the /etc/phpmyadmin/htpasswd.admin file. ***"
    },
    "InstanceId" : {
      "Value" : { "Ref" : "Ec2Instance" },
      "Description" : "InstanceId of the newly created EC2 instance"
    },
    "AvailabilityZone" : {
      "Value" : { "Fn::GetAtt" : [ "Ec2Instance", "AvailabilityZone" ] },
      "Description" : "Availability Zone of the newly created EC2 instance"
    },
    "PublicIP" : {
      "Value" : { "Fn::GetAtt" : [ "Ec2Instance", "PublicIp" ] },
      "Description" : "Public IP address of the newly created EC2 instance"
    },
    "README" : {
      "Value" : " ",
      "Description" : "|||| Enable phpMyAdmin : sudo htpasswd /etc/phpmyadmin/htpasswd.admin admin  ||||  Change MySQL root passowrd : sudo dpkg-reconfigure mysql-server-5.1  ||||  Change phpMyAdmin passowrd : sudo dpkg-reconfigure phpmyadmin  ||||"
    }
  }
}

License

Split DNS を構成する為の、Python script は ubuntu の ec2-init から流用しています。サイズを圧縮する都合上削除したコメントを下記に記します。

#
#    Set up the hostname for ec2.
#    Copyright 2008 Canonical Ltd.
#
#    Author: Chuck Short <chuck.short@canonical.com>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

Operations

実際には、ユニークなデータとして、MySQL の WordPress DB と wp-content の保存・同期の仕組みが必要。