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Amazon RDS(mysql)のIAM認証でハマった

Last updated at Posted at 2017-11-30

Amazon AuroraとmysqlはIAM認証によってdbに接続することができます。が、設定がなかなかにシビアです。

証明書のinstall
$ wget https://s3.amazonaws.com/rds-downloads/rds-combined-ca-bundle.pem -P ~/.ssh/
接続
$ mysql -u iam_user -h iamtest.xxxxxxxxxxxx.ap-northeast-1.rds.amazonaws.com \
    --enable-cleartext-plugin \
    -p`aws rds generate-db-auth-token --hostname iamtest.xxxxxxxxxxxx.ap-
        northeast-1.rds.amazonaws.com \
        --port 3306 \
        --username iam_user \
        --region ap-northeast-1` \
    --ssl-ca=~/.ssh/rds-combined-ca-bundle.pem \
    --ssl-verify-server-cert

ハマりポイント

  • IAM policyの設定 を精読しましょう。rds-db:と末尾の/user名に注意
  • 設定に問題がある場合 ERROR 1045 (28000): Access denied for user 'iam_user'@'<ip>' (using password: YES) としか言わない

参考

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