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【AWS CLI】ap-northeast-1でcreate-bucketした際にIllegalLocationConstraintExceptionがスローされた場合の対処法

Last updated at Posted at 2021-06-01

はじめに

以下のエラーが発生した際の対処法です。

$ aws s3api create-bucket --bucket test-bucket

# An error occurred (IllegalLocationConstraintException) when calling the CreateBucket operation: The unspecified location constraint is incompatible for the region specific endpoint this request was sent to.

結論

--create-bucket-configurationLocationConstraint=$regionを指定する必要があります。
(今回であれば--create-bucket-configuration LocationConstraint=ap-northeast-1)

$ aws s3api create-bucket --bucket test-bucket --create-bucket-configuration LocationConstraint=ap-northeast-1

# {
#     "Location": "http://test-bucket.s3.amazonaws.com/"
# }

詳細

公式リファレンスに全て記載があります。

LocationConstraint:

Specifies the Region where the bucket will be created. If you don't specify a Region, the bucket is created in the US East (N. Virginia) Region (us-east-1).

LocationConstraintには、バケットを作成するリージョンを指定します。
LocationConstraintを指定しない場合、バケットは米国東部 (バージニア北部) リージョン (us-east-1) に作成されます。

If you send your create bucket request to the s3.amazonaws.com endpoint, the request goes to the us-east-1 Region.
~~
Regions outside of us-east-1 require the appropriate LocationConstraint to be specified in order to create the bucket in the desired region:

上述したようにcreate-bucketリクエストは、デフォルトでは us-east-1に送信されます。

そのため、us-east-1 以外にバケットを作成する場合は、そのリージョンを LocationConstraint に指定する必要があります。

逆に言えば、us-east-1からリクエストを送信する場合は、--create-bucket-configurationを指定する必要がありません。
またその場合は、us-east-1にバケットが作成されます。

$ aws s3api create-bucket --bucket test-bucket2 --region us-east-1

# {
#     "Location": "/test-bucket2"
# }


参考

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