修复XtraBackup凭据读取
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@@ -71,7 +71,9 @@ user=${backup_user}
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password=${backup_password}
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host=mysql
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EOF
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chmod 600 "${tmp_dir}/xtrabackup-client.cnf"
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# XtraBackup 镜像可能以非 root 用户运行;临时目录受 umask 077 保护,
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# 因此配置文件需要对容器内用户可读,但不会暴露给宿主机其他用户。
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chmod 644 "${tmp_dir}/xtrabackup-client.cnf"
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backup_log "开始全量热备,实例 ${server_uuid}"
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docker run --rm \
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