AWS asg(Auto Scaling Group)部署时报错Error: Termination Reason: Client.InternalError

背景

最近用一个terraform asg模块部署asg时一直报错
Error: Termination Reason: Client.InternalError: Client error on launch
搜索资料发现和KMS下面的asg 对应的policy有关系.

解决方法

在AWS界面找到KMS, 然后找到customer managed key导航栏, 最后找到对应AMI加密用的key修改其key policy即可, 需要在key policy中添加AWSServiceRoleForAutoScaling的policy.
如下, 注意需要把<AWS Account Number> 替换成自己的aws账号:

{
    
    
            "Sid": "Allow use of the key",
            "Effect": "Allow",
            "Principal": {
    
    
                "AWS": [
                    "arn:aws:iam::<AWS Account Number>:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling"
                ]
            },
            "Action": [
                "kms:Encrypt",
                "kms:Decrypt",
                "kms:ReEncrypt*",
                "kms:GenerateDataKey*",
                "kms:DescribeKey"
            ],
            "Resource": "*"
        },
        {
    
    
            "Sid": "Allow attachment of persistent resources",
            "Effect": "Allow",
            "Principal": {
    
    
                "AWS": [
                    "arn:aws:iam::<AWS Account Number>:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling"
                ]
            },
            "Action": [
                "kms:CreateGrant",
                "kms:ListGrants",
                "kms:RevokeGrant"
            ],
            "Resource": "*",
            "Condition": {
    
    
                "Bool": {
    
    
                    "kms:GrantIsForAWSResource": "true"
                }
            }
        }

参考

Termination Reason: Client.InternalError: Client error on launch