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【AWS】CodeDeployによるBlue/Greenデプロイ実行時エラー「The ELB could not be updated due to the following error: Green taskset target group cannot have non-zero weight ...」の解決方法

Posted at 2023-01-16

概要

Fargateへのデプロイを、CodeDeployによるBlue/Greenデプロイにより実施した。
その際、CodeDeploy画面で、下記のエラーが発生した。

The ELB could not be updated due to the following error: Green taskset target group cannot have non-zero weight prior to traffic shifting on listener arn:aws:elasticloadbalancing:ap-northeast-1:xxxxxxxxxxxx:listener/app/my-app-alb/xxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxx.

※xは伏せ字

解決方法

ALBのTarget groupの指定を１つにする。

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