在CloudFormation模板中运行PowerShell命令

Question

我有一个CloudFormation模板,它使用Java和Tomcat作为服务运行来启动Windows实例.我必须在注册表中为Tomcat设置最大内存池大小的值.我准备了一个PowerShell命令,它在命令行中工作正常.然后我尝试了3种不同的方式来运行它们作为CloudFormation模板的一部分,但没有一种方法有效.

Windows EventLog和C:\ Program Files\Amazon\Ec2ConfigService\Logs中的文件都没有提供任何关于它为什么不起作用的线索.

1

"LaunchConfig" : {
    "Type" : "AWS::AutoScaling::LaunchConfiguration",
    "Properties" : {
        --- some props removed ---,
        "UserData" : {
            "Fn::Base64" : {
                "Fn::Join" : [
                    "",
                    [
                        "<powershell>\n",
                            "Set-ItemProperty -Path \"HKLM:\\Software\\Wow6432Node\\Apache Software Foundation\\Procrun 2.0\\Tomcat8\\Parameters\\Java\" -Name JvmMx -Value 5000 \n",
                            "Restart-Service Tomcat8 \n",
                        "</powershell>"
                    ]
                ]
            }
        }
    }
}

2

"LaunchConfig" : {
    "Type" : "AWS::AutoScaling::LaunchConfiguration",
    "Properties" : {
        --- some props removed ---,
        "UserData" : {
            "Fn::Base64" : {
                "Fn::Join" : [
                    "",
                    [
                        "<script>\n",
                            "PowerShell -Command \"& {Set-ItemProperty -Path 'HKLM:\\Software\\Wow6432Node\\Apache Software Foundation\\Procrun 2.0\\Tomcat8\\Parameters\\Java' -Name JvmMx -Value 5000}\" \n",
                            "PowerShell -Command \"& {Restart-Service Tomcat8}\" \n",
                        "</script>"
                    ]
                ]
            }
        }
    }
}

3

"LaunchConfig" : {
    "Type" : "AWS::AutoScaling::LaunchConfiguration",
    "Properties" : {
        --- some props removed ---,
        "UserData" : {
            "Fn::Base64" : {
                "Fn::Join" : [
                    "",
                    [
                        "<script>\n",
                            "cfn-init.exe -v -s ", {"Ref" : "AWS::StackId"}, " -r LaunchConfig --region ", {"Ref" : "AWS::Region"}, "\n",
                        "</script>"
                    ]
                ]
            }
        }
    },
    "Metadata" : {
        "AWS::CloudFormation::Init" : {
            "config" : {
                "commands" : {
                    "1-heapsize" : {
                        "command" : "PowerShell -Command \"& {Set-ItemProperty -Path 'HKLM:\\Software\\Wow6432Node\\Apache Software Foundation\\Procrun 2.0\\Tomcat8\\Parameters\\Java' -Name JvmMx -Value 5000}\""
                    },
                    "2-restart" : {
                        "command" : "PowerShell -Command \"& {Restart-Service Tomcat8}\""
                    }
                }
            }
        }
    }
}

Answer 1

User Data 必须启用EC2实例才能应用/运行cfn-init和其他用户数据注入脚本.

您需要打开EC2ConfigurationService- 检查启用用户数据,停止实例并采取AMI,并请使用新创建的AMI.

有关详细信息,请访问Amazon文档链接 - http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/UsingConfig_WinAMI.html