41e879ade7
Previously running cfn-json2yaml would generate valid YAML, but the
HOT file would not work. The key mappings it generates had 64 instead
of '64'. Since 64 in YAML is a number and not a string, the template
cannot find the key '64' as it is not a string value.
Turns out this issue was caused by simply forgetting to explicitly
re-add quotation marks after converting from a python object to YAML.
In the conversion code (heat/common/template_format.py), the json
string is first converted into a python object via yaml.load. Next
the python object gets converted to yaml via yaml.dump.
For example:
u'__00015__order__32': u'F17-i386-cfntools' in the python object gets
converted to __00015__order__32: F17-i386-cfntools in yaml.
Crucially in YAML, all strings are not explicity quoted except for
strings that contain only digits. For instance, numerical strings like
'32' will automatically get quoted when using yaml.dump
Normally this would be fine, but a subtle problem arises in the
next line of code:
yml = re.sub('__\d*__order__', '', yml)
By removing all instances of the order substring in the yaml, previous
alphanumeric strings become numeric-only strings. However, since this
step comes after the call to yaml.dump, quotes are not explicity set
anymore!
so for example:
__00015__order__32: F17-i386-cfntool becomes 32: F17-i386-cfntool
Then in YAML, the key 32 is now interpreted as number 32 and not
what we wanted, which is a string '32'
So to help fix this issue, replace all numeric-only keys with quoted
keys. For example:
32: F17-i386-cfntool becomes '32': F17-i386-cfntool
This helps to fix the issue of not finding the numerical keys in
the HOT yaml file.
Change-Id: I37208679f0699d088a7ca632a409d8675cad72c4
Closes-Bug: #1286380
Closes-Bug: #1467029
Closes-Bug: #1467026
153 lines
5.7 KiB
Plaintext
153 lines
5.7 KiB
Plaintext
{
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"AWSTemplateFormatVersion" : "2010-09-09",
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"Description" : "AWS CloudFormation Sample Template WordPress_Single_Instance: WordPress is web software you can use to create a beautiful website or blog. This template installs a single-instance WordPress deployment using a local MySQL database to store the data.",
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"Parameters" : {
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"KeyName" : {
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"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances",
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"Type" : "String"
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},
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"InstanceType" : {
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"Description" : "WebServer EC2 instance type",
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"Type" : "String",
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"Default" : "m1.large",
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"AllowedValues" : [ "t1.micro", "m1.small", "m1.large", "m1.xlarge", "m2.xlarge", "m2.2xlarge", "m2.4xlarge", "c1.medium", "c1.xlarge", "cc1.4xlarge" ],
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"ConstraintDescription" : "must be a valid EC2 instance type."
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},
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"DBName": {
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"Default": "wordpress",
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"Description" : "The WordPress database name",
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"Type": "String",
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"MinLength": "1",
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"MaxLength": "64",
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"AllowedPattern" : "[a-zA-Z][a-zA-Z0-9]*",
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"ConstraintDescription" : "must begin with a letter and contain only alphanumeric characters."
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},
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"DBUsername": {
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"Default": "admin",
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"NoEcho": "true",
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"Description" : "The WordPress database admin account username",
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"Type": "String",
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"MinLength": "1",
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"MaxLength": "16",
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"AllowedPattern" : "[a-zA-Z][a-zA-Z0-9]*",
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"ConstraintDescription" : "must begin with a letter and contain only alphanumeric characters."
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},
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"DBPassword": {
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"Default": "admin",
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"NoEcho": "true",
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"Description" : "The WordPress database admin account password",
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"Type": "String",
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"MinLength": "1",
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"MaxLength": "41",
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"AllowedPattern" : "[a-zA-Z0-9]*",
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"ConstraintDescription" : "must contain only alphanumeric characters."
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},
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"DBRootPassword": {
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"Default": "admin",
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"NoEcho": "true",
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"Description" : "Root password for MySQL",
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"Type": "String",
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"MinLength": "1",
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"MaxLength": "41",
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"AllowedPattern" : "[a-zA-Z0-9]*",
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"ConstraintDescription" : "must contain only alphanumeric characters."
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},
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"LinuxDistribution": {
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"Default": "F17",
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"Description" : "Distribution of choice",
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"Type": "String",
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"AllowedValues" : [ "F18", "F17", "U10", "RHEL-6.1", "RHEL-6.2", "RHEL-6.3" ]
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}
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},
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"Mappings" : {
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"AWSInstanceType2Arch" : {
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"t1.micro" : { "Arch" : "32" },
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"m1.small" : { "Arch" : "32" },
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"m1.large" : { "Arch" : "64" },
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"m1.xlarge" : { "Arch" : "64" },
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"m2.xlarge" : { "Arch" : "64" },
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"m2.2xlarge" : { "Arch" : "64" },
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"m2.4xlarge" : { "Arch" : "64" },
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"c1.medium" : { "Arch" : "32" },
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"c1.xlarge" : { "Arch" : "64" },
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"cc1.4xlarge" : { "Arch" : "64" }
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},
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"DistroArch2AMI": {
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"F18" : {
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"32" : "F18-i386-cfntools",
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"64" : "F18-x86_64-cfntools"
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},
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"F17" : { "32" : "F17-i386-cfntools", "64" : "F17-x86_64-cfntools" },
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"U10" : { "32" : "U10-i386-cfntools", "64" : "U10-x86_64-cfntools" },
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"RHEL-6.1" : { "32" : "rhel61-i386-cfntools", "64" : "rhel61-x86_64-cfntools" },
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"RHEL-6.2" : { "32" : "rhel62-i386-cfntools", "64" : "rhel62-x86_64-cfntools" },
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"RHEL-6.3" : { "32" : "rhel63-i386-cfntools", "64" : "rhel63-x86_64-cfntools" }
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}
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},
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"Resources" : {
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"WikiDatabase": {
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"Type": "AWS::EC2::Instance",
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"Metadata" : {
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"AWS::CloudFormation::Init" : {
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"config" : {
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"packages" : {
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"yum" : {
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"mysql" : [],
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"mysql-server" : [],
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"httpd" : [],
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"wordpress" : []
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}
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},
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"services" : {
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"systemd" : {
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"mysqld" : { "enabled" : "true", "ensureRunning" : "true" },
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"httpd" : { "enabled" : "true", "ensureRunning" : "true" }
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}
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}
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}
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}
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},
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"Properties": {
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"ImageId" : { "Fn::FindInMap" : [ "DistroArch2AMI", { "Ref" : "LinuxDistribution" },
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{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
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"InstanceType" : { "Ref" : "InstanceType" },
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"KeyName" : { "Ref" : "KeyName" },
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"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
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"#!/bin/bash -v\n",
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"/opt/aws/bin/cfn-init\n",
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"# Setup MySQL root password and create a user\n",
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"mysqladmin -u root password '", { "Ref" : "DBRootPassword" }, "'\n",
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"cat << EOF | mysql -u root --password='", { "Ref" : "DBRootPassword" }, "'\n",
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"CREATE DATABASE ", { "Ref" : "DBName" }, ";\n",
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"GRANT ALL PRIVILEGES ON ", { "Ref" : "DBName" }, ".* TO \"", { "Ref" : "DBUsername" }, "\"@\"localhost\"\n",
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"IDENTIFIED BY \"", { "Ref" : "DBPassword" }, "\";\n",
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"FLUSH PRIVILEGES;\n",
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"EXIT\n",
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"EOF\n",
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"sed -i \"/Deny from All/d\" /etc/httpd/conf.d/wordpress.conf\n",
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"sed -i \"s/Require local/Require all granted/\" /etc/httpd/conf.d/wordpress.conf\n",
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"sed --in-place --e s/database_name_here/", { "Ref" : "DBName" }, "/ --e s/username_here/", { "Ref" : "DBUsername" }, "/ --e s/password_here/", { "Ref" : "DBPassword" }, "/ /usr/share/wordpress/wp-config.php\n",
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"systemctl restart httpd.service\n"
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]]}}
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}
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}
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},
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"Outputs" : {
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"WebsiteURL" : {
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"Value" : { "Fn::Join" : ["", ["http://", { "Fn::GetAtt" : [ "WikiDatabase", "PublicIp" ]}, "/wordpress"]] },
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"Description" : "URL for Wordpress wiki"
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}
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}
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}
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