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[原因] docker login のときに Error response from daemon: Get https://<IP>:<PORT>/v2/: x509: certificate signed by unknown authority 発生

Last updated at Posted at 2021-12-12

概要

Docker Private Registry を構築中に発生したエラーとその対策.

エラーメッセージ

Error response from daemon: Get https://<IP>:<PORT>/v2/: x509: certificate signed by unknown authority

原因

/etc/docker/certs.d/<IP>:<PORT>/domain.crt が存在していなかった

 

その他

registry あるいは nginx のログを見ること

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