openstack/heat
Code Issues Proposed changes

Add nested templates that implement a simple proxy/loadbalancer

Browse Source 
Change-Id: I49f12e399f565d77955cf26288d182d0165422a0
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
This commit is contained in:
Angus Salkeld 2012-06-26 23:23:27 +10:00
parent 8623ba8dbd
commit f557b22e7e
4 changed files with 410 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

94
templates/HAProxy_Single_Instance.template Normal file
View File

@ -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 <ip:port>",
"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"
}
}
}

37
templates/MySQL_Single_Instance.template
View File

@ -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"
}
}

135
templates/WordPress_And_Http.template Normal file
View File

@ -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"
}
}
}

148
templates/WordPress_With_LB.template Normal file
View File

@ -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"
}
}
}