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@kenichi_ccin株式会社システムアイ

Dockerfileでのdnf updateに失敗する場合

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Dockerfile内でdnf updateを実行したところ下記エラー

Failed to download metadata for repo 'appstream': Cannot ...

こちらの通りに実施し解決

FROM centos

RUN cd /etc/yum.repos.d/
RUN sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
RUN sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

RUN dnf -y update
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