如何通过CloudFormation设置EC2实例的根卷的标签

问题描述

使用CloudFormation创建EC2实例，但是根卷的名称（标记）为空。如何使用CloudFormation设置它？

Create EC2 instance using CloudFormation, but the name (tags) of root volume is empty. How to set it using CloudFormation?

# ec2-instance.yml (CloudFormation template)
MyInstance:
  Type: "AWS::EC2::Instance"
  Properties:
    ImageId: "ami-da9e2cbc"
    InstanceType: "t2.nano"
    KeyName: !Ref "KeyPair"
    Tags: # This is for EC2 instance (not root volume)
      - Key: "Name"
        Value: "my-instance"

我找到了 Volumes和 BlockDeviceMappings属性，但找不到。

I find "Volumes" and "BlockDeviceMappings" properties but it could not.

推荐答案

CloudFormation当前似乎不支持此功能。但是，使用实例，您可以执行以下操作以标记根卷：

CloudFormation does not appear to support this currently. However using an instance user data script, you can do this to tag the root volume:

apt-get -y install unzip
unzip awscli-bundle.zip
./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws    
rm -rf  awscli-bundle awscli-bundle.zip
EC2_INSTANCE_ID=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
EC2_REGION=${EC2_AVAIL_ZONE:0:${#EC2_AVAIL_ZONE} - 1}
ROOT_DISK_ID=$(aws ec2 describe-volumes --filters Name=attachment.instance-id,Values={EC2_INSTANCE_ID} Name=attachment.device,Values=/dev/sda1 --query 'Volumes[*].[VolumeId]' --region=${EC2_REGION} --out \"text\" | cut -f 1)
aws ec2 create-tags --resources $ROOT_DISK_ID --tags Key=Name,Value=\"Root Volume my-instance\" --region ${EC2_REGION}

此脚本会使用 Name =根卷我的实例

请注意，对于我的Ubuntu AMI，我必须首先安装AWS工具。 Amazon Linux AMI已安装了那些工具。

Note that for my Ubuntu AMI I have to install the AWS tools first. The Amazon Linux AMI has those tools installed.

对于CloudFormation，您将使用：

For CloudFormation, you would use:

# ec2-instance.yml (CloudFormation template)
MyInstance:
  Type: "AWS::EC2::Instance"
  Properties:
    ImageId: "ami-da9e2cbc"
    InstanceType: "t2.nano"
    KeyName: !Ref "KeyPair"
    UserData:
      "Fn::Base64": !Sub |
       #!/bin/bash -x
       apt-get -y install unzip
       unzip awscli-bundle.zip
       ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws    
       rm -rf  awscli-bundle awscli-bundle.zip
       EC2_INSTANCE_ID=$(curl -s http://169.254.169.254/latest/meta-data/instance-id)
       EC2_REGION=${EC2_AVAIL_ZONE:0:${#EC2_AVAIL_ZONE} - 1}
       ROOT_DISK_ID=$(aws ec2 describe-volumes --filters Name=attachment.instance-id,Values={EC2_INSTANCE_ID} Name=attachment.device,Values=/dev/sda1 --query 'Volumes[*].[VolumeId]' --region=${EC2_REGION} --out \"text\" | cut -f 1)
       aws ec2 create-tags --resources $ROOT_DISK_ID --tags Key=Name,Value=\"Root Volume my-instance\" --region ${EC2_REGION}

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