From f557b22e7e8fc7d3200f538e782dc1d00f56bed2 Mon Sep 17 00:00:00 2001 From: Angus Salkeld Date: Tue, 26 Jun 2012 23:23:27 +1000 Subject: [PATCH] Add nested templates that implement a simple proxy/loadbalancer Change-Id: I49f12e399f565d77955cf26288d182d0165422a0 Signed-off-by: Angus Salkeld --- templates/HAProxy_Single_Instance.template | 94 +++++++++++++ templates/MySQL_Single_Instance.template | 37 +++++- templates/WordPress_And_Http.template | 135 +++++++++++++++++++ templates/WordPress_With_LB.template | 148 +++++++++++++++++++++ 4 files changed, 410 insertions(+), 4 deletions(-) create mode 100644 templates/HAProxy_Single_Instance.template create mode 100644 templates/WordPress_And_Http.template create mode 100644 templates/WordPress_With_LB.template diff --git a/templates/HAProxy_Single_Instance.template b/templates/HAProxy_Single_Instance.template new file mode 100644 index 0000000000..25f6400379 --- /dev/null +++ b/templates/HAProxy_Single_Instance.template @@ -0,0 +1,94 @@ +{ + "AWSTemplateFormatVersion": "2010-09-09", + + "Description": "A Database instance running a local MySQL server", + + "Parameters": { + + "KeyName": { + "Description": "Name of an existing EC2 KeyPair to enable SSH access to the instances", + "Type": "String" + }, + + "Server1": { + "Description": "Server1 to load balance ", + "Type": "String" + }, + + "InstanceType": { + "Description": "Database server EC2 instance type", + "Default": "m1.small", + "Type": "String", + "AllowedValues": [ "t1.micro", "m1.small", "m1.large", "m1.xlarge", "m2.xlarge", "m2.2xlarge", "m2.4xlarge", "c1.medium", "c1.xlarge", "cc1.4xlarge" ], + "ConstraintDescription": "must be a valid EC2 instance type." + } + }, + + "Resources": { + "LoadBalancerInstance": { + "Type": "AWS::EC2::Instance", + "Metadata": { + "AWS::CloudFormation::Init": { + "config": { + "packages": { + "yum": { + "haproxy" : [] + } + }, + "services": { + "systemd": { + "haproxy" : { "enabled": "true", "ensureRunning": "true" } + } + }, + "files": { + "/etc/haproxy/haproxy.cfg": { + "content": { "Fn::Join": ["", [ + " global\n", + " daemon\n", + " maxconn 256\n", + "\n", + " defaults\n", + " mode http\n", + " timeout connect 5000ms\n", + " timeout client 50000ms\n", + " timeout server 50000ms\n", + "\n", + " frontend http-in\n", + " bind *:80\n", + " default_backend servers\n", + "\n", + " backend servers\n", + " balance roundrobin\n", + " option http-server-close\n", + " option forwardfor\n", + " server server1 ", { "Ref" : "Server1" }, "\n" + ]]}, + "mode": "000644", + "owner": "root", + "group": "root" + } + } + } + } + }, + "Properties": { + "ImageId": "F16-x86_64-cfntools", + "InstanceType": { "Ref": "InstanceType" }, + "KeyName": { "Ref": "KeyName" }, + "UserData": { "Fn::Base64": { "Fn::Join": ["", [ + "#!/bin/bash -v\n", + "/opt/aws/bin/cfn-init -s ", + { "Ref": "AWS::StackName" }, + " --region ", { "Ref": "AWS::Region" }, "\n" + ]]}} + } + } + }, + + "Outputs": { + "PublicIp": { + "Value": { "Fn::GetAtt": [ "LoadBalancerInstance", "PublicIp" ] }, + "Description": "instance IP" + } + } +} diff --git a/templates/MySQL_Single_Instance.template b/templates/MySQL_Single_Instance.template index c0659baa7b..de8e0bd85f 100644 --- a/templates/MySQL_Single_Instance.template +++ b/templates/MySQL_Single_Instance.template @@ -86,7 +86,7 @@ }, "Resources" : { - "DatabaseServer": { + "MySqlDatabaseServer": { "Type": "AWS::EC2::Instance", "Metadata" : { "AWS::CloudFormation::Init" : { @@ -112,7 +112,19 @@ "KeyName" : { "Ref" : "KeyName" }, "UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [ "#!/bin/bash -v\n", - "/opt/aws/bin/cfn-init\n", + + "# Helper function\n", + "function error_exit\n", + "{\n", + " /opt/aws/bin/cfn-signal -e 1 -r \"$1\" '", { "Ref" : "MySqlWaitHandle" }, "'\n", + " exit 1\n", + "}\n", + + "/opt/aws/bin/cfn-init -s ", { "Ref" : "AWS::StackName" }, + " -r MySqlDatabaseServer ", + " --region ", { "Ref" : "AWS::Region" }, + " || error_exit 'Failed to run cfn-init'\n", + "# Setup MySQL root password and create a user\n", "mysqladmin -u root password '", { "Ref" : "DBRootPassword" }, "'\n", "cat << EOF | mysql -u root --password='", { "Ref" : "DBRootPassword" }, "'\n", @@ -121,15 +133,32 @@ "IDENTIFIED BY \"", { "Ref" : "DBPassword" }, "\";\n", "FLUSH PRIVILEGES;\n", "EXIT\n", - "EOF\n" + "EOF\n", + "# All is well so signal success\n", + "/opt/aws/bin/cfn-signal -e 0 -r \"MySQL Database setup complete\" '", + { "Ref" : "MySqlWaitHandle" }, "'\n" ]]}} } + }, + + "MySqlWaitHandle" : { + "Type" : "AWS::CloudFormation::WaitConditionHandle" + }, + + "MySqlWaitCondition" : { + "Type" : "AWS::CloudFormation::WaitCondition", + "DependsOn" : "MySqlDatabaseServer", + "Properties" : { + "Handle" : {"Ref" : "MySqlWaitHandle"}, + "Timeout" : "600" + } } + }, "Outputs" : { "PublicIp": { - "Value": { "Fn::GetAtt" : [ "DatabaseServer", "PublicIp" ] }, + "Value": { "Fn::GetAtt" : [ "MySqlDatabaseServer", "PublicIp" ] }, "Description": "Database server IP" } } diff --git a/templates/WordPress_And_Http.template b/templates/WordPress_And_Http.template new file mode 100644 index 0000000000..52f52b5147 --- /dev/null +++ b/templates/WordPress_And_Http.template @@ -0,0 +1,135 @@ +{ + "AWSTemplateFormatVersion": "2010-09-09", + + "Description": "This template installs one instance running a WordPress deployment", + + "Parameters": { + + "KeyName": { + "Description": "Name of an existing EC2 KeyPair to enable SSH access to the instances", + "Type": "String" + }, + + "InstanceType": { + "Description": "WebServer EC2 instance type", + "Type": "String", + "Default": "m1.large", + "AllowedValues": ["t1.micro", "m1.small", "m1.large", "m1.xlarge", + "m2.xlarge", "m2.2xlarge", "m2.4xlarge", "c1.medium", + "c1.xlarge", "cc1.4xlarge" ], + "ConstraintDescription": "must be a valid EC2 instance type." + }, + + "DBIpaddress": { + "Description": "The IP address of the database", + "Type": "String" + }, + + "DBName": { + "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." + }, + + "DBUsername": { + "Default": "admin", + "NoEcho": "true", + "Description": "The WordPress database admin account username", + "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": { + "Default": "admin", + "NoEcho": "true", + "Description": "The WordPress database admin account password", + "Type": "String", + "MinLength": "1", + "MaxLength": "41", + "AllowedPattern": "[a-zA-Z0-9]*", + "ConstraintDescription": "must contain only alphanumeric characters." + }, + + "LinuxDistribution": { + "Default": "F16", + "Description": "Distribution of choice", + "Type": "String", + "AllowedValues": [ "F16", "F17", "U10", "RHEL-6.1", "RHEL-6.2", "RHEL-6.3" ] + } + }, + + "Mappings": { + "AWSInstanceType2Arch": { + "t1.micro" : { "Arch": "32" }, + "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" } + }, + "DistroArch2AMI": { + "F16" : { "32": "F16-i386-cfntools", "64": "F16-x86_64-cfntools" }, + "F17" : { "32": "F17-i386-cfntools", "64": "F17-x86_64-cfntools" }, + "U10" : { "32": "U10-i386-cfntools", "64": "U10-x86_64-cfntools" }, + "RHEL-6.1": { "32": "rhel61-i386-cfntools", "64": "rhel61-x86_64-cfntools" }, + "RHEL-6.2": { "32": "rhel62-i386-cfntools", "64": "rhel62-x86_64-cfntools" }, + "RHEL-6.3": { "32": "rhel63-i386-cfntools", "64": "rhel63-x86_64-cfntools" } + } + }, + + "Resources": { + "WebServer": { + "Type": "AWS::EC2::Instance", + "Metadata": { + "AWS::CloudFormation::Init": { + "config": { + "packages": { + "yum": { + "httpd" : [], + "wordpress" : [] + } + }, + "services": { + "systemd": { + "httpd" : { "enabled": "true", "ensureRunning": "true" } + } + } + } + } + }, + "Properties": { + "ImageId": { "Fn::FindInMap": [ "DistroArch2AMI", { "Ref": "LinuxDistribution" }, + { "Fn::FindInMap": [ "AWSInstanceType2Arch", { "Ref": "InstanceType" }, "Arch" ] } ] }, + "InstanceType" : { "Ref": "InstanceType" }, + "KeyName" : { "Ref": "KeyName" }, + "UserData" : { "Fn::Base64": { "Fn::Join": ["", [ + "#!/bin/bash -v\n", + "/opt/aws/bin/cfn-init\n", + "sed --in-place --e s/database_name_here/", { "Ref": "DBName" }, + "/ --e s/username_here/", { "Ref": "DBUsername" }, + "/ --e s/password_here/", { "Ref": "DBPassword" }, + "/ --e s/localhost/", { "Ref": "DBIpaddress"}, + "/ /usr/share/wordpress/wp-config.php\n" + ]]}} + } + } + }, + + "Outputs": { + "PublicIp": { + "Value": {"Fn::GetAtt": [ "WebServer", "PublicIp"]}, + "Description": "IP address of WebServer instance" + } + } +} diff --git a/templates/WordPress_With_LB.template b/templates/WordPress_With_LB.template new file mode 100644 index 0000000000..6055dc3f16 --- /dev/null +++ b/templates/WordPress_With_LB.template @@ -0,0 +1,148 @@ +{ + "AWSTemplateFormatVersion": "2010-09-09", + + "Description": "WordPress is web software you can use to create a beautiful website or blog. This template installs two instances: one running a WordPress deployment and the other, created within a separate stack embedded in this one with template composition, using a local MySQL database to store the data.", + + "Parameters": { + + "KeyName": { + "Description": "Name of an existing EC2 KeyPair to enable SSH access to the instances", + "Type": "String" + }, + + "InstanceType": { + "Description": "WebServer EC2 instance type", + "Type": "String", + "Default": "m1.large", + "AllowedValues": [ "t1.micro", "m1.small", "m1.large", "m1.xlarge", "m2.xlarge", "m2.2xlarge", "m2.4xlarge", "c1.medium", "c1.xlarge", "cc1.4xlarge" ], + "ConstraintDescription": "must be a valid EC2 instance type." + }, + + "DBName": { + "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." + }, + + "DBUsername": { + "Default": "admin", + "NoEcho": "true", + "Description": "The WordPress database admin account username", + "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": { + "Default": "admin", + "NoEcho": "true", + "Description": "The WordPress database admin account password", + "Type": "String", + "MinLength": "1", + "MaxLength": "41", + "AllowedPattern": "[a-zA-Z0-9]*", + "ConstraintDescription": "must contain only alphanumeric characters." + }, + + "DBRootPassword": { + "Default": "admin", + "NoEcho": "true", + "Description": "Root password for MySQL", + "Type": "String", + "MinLength": "1", + "MaxLength": "41", + "AllowedPattern": "[a-zA-Z0-9]*", + "ConstraintDescription": "must contain only alphanumeric characters." + }, + "LinuxDistribution": { + "Default": "F16", + "Description": "Distribution of choice", + "Type": "String", + "AllowedValues": [ "F16", "F17", "U10", "RHEL-6.1", "RHEL-6.2", "RHEL-6.3" ] + } + }, + + "Mappings": { + "AWSInstanceType2Arch": { + "t1.micro" : { "Arch": "32" }, + "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" } + }, + "DistroArch2AMI": { + "F16" : { "32": "F16-i386-cfntools", "64": "F16-x86_64-cfntools" }, + "F17" : { "32": "F17-i386-cfntools", "64": "F17-x86_64-cfntools" }, + "U10" : { "32": "U10-i386-cfntools", "64": "U10-x86_64-cfntools" }, + "RHEL-6.1": { "32": "rhel61-i386-cfntools", "64": "rhel61-x86_64-cfntools" }, + "RHEL-6.2": { "32": "rhel62-i386-cfntools", "64": "rhel62-x86_64-cfntools" }, + "RHEL-6.3": { "32": "rhel63-i386-cfntools", "64": "rhel63-x86_64-cfntools" } + } + }, + + "Resources": { + "DatabaseServer": { + "Type": "AWS::CloudFormation::Stack", + "Properties": { + "TemplateURL": "https://raw.github.com/heat-api/heat/master/templates/MySQL_Single_Instance.template", + "Parameters": { + "KeyName" : { "Ref": "KeyName" }, + "InstanceType" : { "Ref": "InstanceType" }, + "DBName" : { "Ref": "DBName" }, + "DBUsername" : { "Ref": "DBUsername" }, + "DBPassword" : { "Ref": "DBPassword" }, + "DBRootPassword" : { "Ref": "DBRootPassword" }, + "LinuxDistribution": { "Ref": "LinuxDistribution" } + } + } + }, + + "WikiServerOne": { + "Type": "AWS::CloudFormation::Stack", + "DependsOn": "DatabaseServer", + "Properties": { + "TemplateURL": "https://raw.github.com/heat-api/heat/master/templates/WordPress_And_Http.template", + "Parameters": { + "KeyName" : { "Ref": "KeyName" }, + "InstanceType" : { "Ref": "InstanceType" }, + "DBName" : { "Ref": "DBName" }, + "DBUsername" : { "Ref": "DBUsername" }, + "DBPassword" : { "Ref": "DBPassword" }, + "DBIpaddress" : { "Fn::GetAtt": [ "DatabaseServer", "Outputs.PublicIp" ]}, + "LinuxDistribution": { "Ref": "LinuxDistribution" } + } + } + }, + + "LoadBalancer": { + "Type": "AWS::CloudFormation::Stack", + "DependsOn": "WikiServerOne", + "Properties": { + "TemplateURL": "https://raw.github.com/heat-api/heat/master/templates/HAProxy_Single_Instance.template", + "Parameters": { + "KeyName" : { "Ref": "KeyName" }, + "InstanceType" : { "Ref": "InstanceType" }, + "Server1" : { "Fn::Join": ["", [{ "Fn::GetAtt": [ "WikiServerOne", "Outputs.PublicIp" ]}, ":80"]] } + } + } + } + }, + + "Outputs": { + "WebsiteURL": { + "Value": { "Fn::Join": ["", ["http://", { "Fn::GetAtt": [ "LoadBalancer", "Outputs.PublicIp" ]}, "/wordpress"]] }, + "Description": "URL for Wordpress wiki" + } + } +}