amazon-web-services - 编写脚本并通过aws cloudformation在EC2中运行

Question

我可以在cloudformation中创建EC2实例。但我想在 EC2 内编写一个 .sh 脚本，并在实例启动时运行一次。谁能指导我实现它？

Answer 1

您可以使用 AWS::CloudFormation::Init 并直接传递 shell 命令(请参阅第一个示例)，或者例如写入文件(第二个示例)

{
  "Resources": {
    "MyEc2Instance": {
      "Type": "AWS::EC2::Instance",
      "Metadata": {
        "AWS::CloudFormation::Init": {
          "do_something": {
            "commands": {
              "foobar": {
                "command": "echo FOO > /etc/motd"
              }
            }
          }
        }
      },
      "Properties": {
        ...
      }
    }
  }
}

{
  "Resources": {
    "MyEc2Instance": {
      "Type": "AWS::EC2::Instance",
      "Metadata" : {
        "AWS::CloudFormation::Init" : {
          "do_something" : {
            "files" : {
              "/usr/local/bin/myscript.sh" : {
                "content" : { "Fn::Join" : ["", [
                  "#!/bin/sh\n",
                  "ls -al\n"
                ]]},
                "mode"  : "000755",
                "owner" : "root",
                "group" : "root"
              }
            }
          }
        }
      },
      "Properties": {
      }
    }
  }
}