ALB vs NLB アクセスログの設定

ALBとNLBでバケットポリシーに違うものが求められる

ALB(2022年8月以前に利用可能になったリージョン)

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::elb-account-id:root"
      },
      "Action": "s3:PutObject",
      "Resource": "my-s3-arn"
    }
  ]
}

NLB(リージョンの別はないけど若干複雑になってる)

{
    "Version": "2012-10-17",
    "Id": "AWSLogDeliveryWrite",
    "Statement": [
        {
            "Sid": "AWSLogDeliveryAclCheck",
            "Effect": "Allow",
            "Principal": {
                "Service": "delivery.logs.amazonaws.com"
            },
            "Action": "s3:GetBucketAcl",
            "Resource": "arn:aws:s3:::my-bucket",
            "Condition": {
                "StringEquals": {
                    "aws:SourceAccount": ["012345678912"]
                },
                "ArnLike": {
                    "aws:SourceArn": ["arn:aws:logs:us-east-1:012345678912:*"]
                }
            }
        },
        {
            "Sid": "AWSLogDeliveryWrite",
            "Effect": "Allow",
            "Principal": {
                "Service": "delivery.logs.amazonaws.com"
            },
            "Action": "s3:PutObject",
            "Resource": "arn:aws:s3:::my-bucket/AWSLogs/account-ID/*",
            "Condition": {
                "StringEquals": {
                    "s3:x-amz-acl": "bucket-owner-full-control",
                    "aws:SourceAccount": ["012345678912"]
                },
                "ArnLike": {
                    "aws:SourceArn": ["arn:aws:logs:us-east-1:012345678912:*"]
                }
            }
        }
    ]
}

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