linux - 使用云形成在 linux-Ec2 实例中自动挂载 ebs 卷？

Question

编写了一个 CFT 来创建附加了两个 ebs 卷的 Redhat 实例。并且需要从 cft 本身自动挂载或格式化 ebs 卷。

CFT:

"BlockDeviceMappings": [
    {
        "DeviceName": "/dev/sda1",
        "Ebs": {
            "DeleteOnTermination": "true",
            "VolumeSize": "150",
            "VolumeType": "standard"
        }
    },
    {
        "DeviceName": "/dev/sdm",
        "Ebs": {
            "DeleteOnTermination": "true",
            "VolumeSize": "1000",
            "VolumeType": "standard"
        }
    }
]

需要自动挂载“DeviceName”:“/dev/sdm”，此卷。

Answer 1

您需要将一个小脚本添加到与此 BlockDeviceMappings 关联的实例或启动配置的 UserData 属性中。 UserData 在实例第一次启动时执行。当实例使用/etc/fstab 重新启动时，设备将自动重新安装。

    "UserData" : { "Fn::Base64" : { "Fn::Join" : [ "", [
      "#!/bin/bash -v\n",
      "mkfs -t ext4 /dev/xvdm\n",
      "mkfs -t ext4 /dev/xvda1\n",
      "mkdir /opt/mount1 /opt/mount2\n",
      "mount /dev/xvdm /opt/mount1\n",
      "mount /dev/xvda1 /opt/mount2\n",
      "echo \"/dev/xvdm /opt/mount1 ext4 defaults,nofail 0 2\" >> /etc/fstab\n"
      "echo \"/dev/xvda1 /opt/mount2 ext4 defaults,nofail 0 2\" >> /etc/fstab\n"
    ]]}}

更多信息:http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html