{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "Simple Perf Instance Group",

  "Parameters": {

    "MaximumInstances": {
      "Type": "String",
      "Description": "Maximum number of app instances",
      "Default": "1"
    },
    "MinimumInstances": {
      "Type": "String",
      "Description": "Minimum number of app instances",
      "Default": "1"
    },
    "AmiId" : {
      "Description" : "Ami to provision",
      "Type" : "String"
    },
    "KeyName": {
      "Description": "Name of EC2 key pair to use",
      "Type": "String"
    },
    "InstanceType" : {
      "Description" : "EC2 instance type",
      "Type" : "String",
      "Default" : "m1.medium",
      "AllowedValues" : [ "m1.small","m1.medium","m1.large","m1.xlarge",
                          "m3.xlarge", "m3.2xlarge", "c1.xlarge" ],
      "ConstraintDescription" : "must be a valid EC2 instance type."
    },
    "S3BucketName": {
      "Description": "Name of S3 bucket",
      "Type": "String"
    },
    "Abort": {
      "Description": "Should the entire deployment be aborted if bootstraping fails?",
      "Type": "String",
      "Default": "yes",
      "AllowedValues": [ "yes", "no" ],
      "ConstraintDescription": "yes or no"
    }
  },

  "Mappings": {
    "BootstrapSettingMap": {
      "abort": { "yes": "$?", "no": "0" }
    },
    "S3Map": {
      "us-east-1": { "s3": "s3:/",
                     "http": "http://s3.amazonaws.com",
                     "https": "https://s3.amazonaws.com",
                     "endpoint": "s3.amazonaws.com"
      },
      "us-west-1": { "s3": "s3:/",
                     "http": "http://s3-us-west-1.amazonaws.com",
                     "https": "https://s3-us-west-1.amazonaws.com",
                     "endpoint": "s3-us-west-1.amazonaws.com"
      },
      "us-west-2": { "s3": "s3:/",
                     "http": "http://s3-us-west-2.amazonaws.com",
                     "https": "https://s3-us-west-2.amazonaws.com",
                     "endpoint": "s3-us-west-2.amazonaws.com"
      }
    }
  },

  "Resources": {
    "User": {
      "Type": "AWS::IAM::User",
      "Properties": {
        "Path": "/",
        "Policies": [{
          "PolicyName": "user_resource_access",
          "PolicyDocument": {
            "Statement":[
              {
                "Effect": "Allow",
                "Action": "cloudformation:DescribeStackResource",
                "Resource": "*"
              },
              {
                "Effect": "Allow",
                "Action": ["s3:ListAllMyBuckets"],
                "Resource": "arn:aws:s3:::*"
              },
              {
                "Effect": "Allow",
                "Action": ["s3:*"],
                "Resource": [ { "Fn::Join": [ "", [ "arn:aws:s3:::",
                                                    { "Ref": "S3BucketName" } ] ] },
                              { "Fn::Join": [ "", [ "arn:aws:s3:::",
                                                    { "Ref": "S3BucketName" }, "/*" ] ] }
                ]
              }
            ]

          }
        }]
      }
    },

    "UserKey": {
      "Type": "AWS::IAM::AccessKey",
      "Properties": {
        "UserName": {"Ref": "User"}
      }
    },

    "Instances": {
      "Type": "AWS::AutoScaling::AutoScalingGroup",
      "Properties": {
        "AvailabilityZones": { "Fn::GetAZs": "" },
        "LaunchConfigurationName": { "Ref": "InstanceLaunchConfig" },
        "MaxSize": { "Ref": "MaximumInstances" },
        "MinSize": { "Ref": "MinimumInstances" },
        "Tags": [ {
          "Key": "Name",
          "Value": { "Ref": "AWS::StackName" } ,
          "PropagateAtLaunch": "true" }
        ]
      }
    },

    "InstanceLaunchConfig": {
      "Type": "AWS::AutoScaling::LaunchConfiguration",
      "Metadata": {

        "AWS::CloudFormation::Init": {

          "configSets": {
            "default": [ "base", "s3cmd", "jmeter" ]
          },

          "base": {

            "files": {
              "/etc/yum.repos.d/intu-packages.repo": {
                "content": { "Fn::Join": [ "", [
                  "[intu-packages-", { "Ref": "AWS::Region" }, "]\n",
                  "name=Intuit Custom RPM Packages\n",
                  "baseurl=",
                    { "Fn::FindInMap": [ "S3Map", { "Ref": "AWS::Region" }, "http" ] },
                      "/intu-packages-", { "Ref": "AWS::Region" }, "/rhel/6/x86_64\n",
                  "gpgcheck=0\n",
                  "enabled=1\n"
                ] ] },
                "owner": "root",
                "group": "root",
                "mode": "000644"
              }

            }

          },

          "s3cmd": {

            "files": {

              "/home/ec2-user/.s3cfg": {
                "content": { "Fn::Join": ["", [
                  "access_key = ", { "Ref": "UserKey" }, "\n",
                  "secret_key = ", {"Fn::GetAtt": ["UserKey", "SecretAccessKey"]}, "\n"
                ]]},
                "mode"   : "000400",
                "owner"  : "ec2-user",
                "group"  : "ec2-user"
              },

              "/root/.s3cfg": {
                "content": { "Fn::Join": ["", [
                  "access_key = ", { "Ref": "UserKey" }, "\n",
                  "secret_key = ", {"Fn::GetAtt": ["UserKey", "SecretAccessKey"]}, "\n"
                ]]},
                "mode"   : "000400",
                "owner"  : "ec2-user",
                "group"  : "ec2-user"
              }

            },

            "packages": {
              "yum": {
                "s3cmd": []
              }
            }

          },

          "jmeter": {

            "commands": {

              "jmeter_batch_mode": {
                "command": "sed -i 's/#mode=Batch/mode=Batch/' /opt/jakarta-jmeter/bin/jmeter.properties"
              },

              "jmeter_rmi_enable": {
                "command": "sed -i 's/#server.rmi.localport=4000/server.rmi.localport=4000/' /opt/jakarta-jmeter/bin/jmeter.properties"
              },

              "jmeter_disable_cookie_check": {
                "command": "sed -i 's/#CookieManager.check.cookies=true/CookieManager.check.cookies=false/' /opt/jakarta-jmeter/bin/jmeter.properties"
              }

            },

            "files": {

              "/etc/profile.d/jmeter.sh": {
                "content": { "Fn::Join": [ "", [ "export JMETER_HOME=/opt/jakarta-jmeter", "\n",
                                                 "export PATH=/opt/jakarta-jmeter/bin:$PATH" ] ] },
                "owner": "root",
                "group": "root",
                "mode": "000644"
              },

              "/home/ec2-user/sync_jmeter_files.sh": {
                "content": { "Fn::Join": [ "", [ "#!/bin/bash", "\n",
                                                 "mkdir -p ~/simple_perf_test_files", "\n",
                                                 "cd ~/simple_perf_test_files", "\n",
                                                 "s3cmd sync s3://",
                                                    { "Ref": "S3BucketName" },
                                                    " ." ] ] },
                "owner": "ec2-user",
                "group": "ec2-user",
                "mode": "000770"
              }

            },

            "packages": {
              "yum": {
                "intu-jakarta-jmeter": [ "2.5.1" ]
              }
            }

          }
        }
      },

      "Properties": {
        "KeyName" : { "Ref": "KeyName" },
        "ImageId" : { "Ref" : "AmiId" },
        "InstanceType": { "Ref": "InstanceType" },
        "SecurityGroups": [ { "Ref": "InstancesSecurityGroup" } ],
        "UserData": { "Fn::Base64": { "Fn::Join": ["", [
          "#!/bin/bash\n",

          "chmod 644 /etc/resolv.conf", "\n",

          "if [ -f /etc/yum.repos.d/intu-packages-us-west-1.repo ]; then", "\n",
            "rm -f /etc/yum.repos.d/intu-packages-us-west-1.repo", "\n",
          "fi", "\n",

          "/opt/aws/bin/cfn-init ",
            " -s ", { "Ref": "AWS::StackName" },
            " -r InstanceLaunchConfig",
            " --region=", { "Ref": "AWS::Region" },
            " --access-key=", { "Ref": "UserKey" },
            " --secret-key=", { "Fn::GetAtt": ["UserKey", "SecretAccessKey"] }, "\n",

          "runuser -c \"~/sync_jmeter_files.sh\" ec2-user", "\n",

          "/opt/aws/bin/cfn-signal -e ",
            { "Fn::FindInMap": [ "BootstrapSettingMap", "abort", { "Ref": "Abort" } ] },
            " '", { "Ref": "InstancesWaitHandle" }, "'\n"
        ]]}}
      }
    },

    "InstancesSecurityGroup": {
      "Type": "AWS::EC2::SecurityGroup",
      "Properties": {
        "GroupDescription": "Security Group for the app the instance",
        "SecurityGroupIngress": [
          {
            "IpProtocol" : "tcp",
            "FromPort" : "22",
            "ToPort" : "22",
            "CidrIp" : "0.0.0.0/0"
          }
        ]
      }
    },

    "InstancesWaitHandle": {
      "Type": "AWS::CloudFormation::WaitConditionHandle",
      "Properties": {}
    },

    "InstancesWaitCondition": {
      "Type": "AWS::CloudFormation::WaitCondition",
      "DependsOn": [ "InstanceLaunchConfig" ],
      "Properties": {
        "Handle": { "Ref": "InstancesWaitHandle" },
        "Count": "1",
        "Timeout": "900"
      }
    }

  }

}