首页 > 解决方案 > docker-compose 问题:尝试创建/挂载卷时权限被拒绝

问题描述

我有以下 docker-compose.yml 文件:

version: "3"
services:
  dbs-poa-loc001d:
    image: percona
    volumes:
      - ./mysql_backup:/var/lib/mysql
      - ./create_databases:/docker-entrypoint-initdb.d
    hostname: "dbs-poa-loc001d"
    container_name: dbs-poa-loc001d
    environment:
      MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
    ports:
      - "3306:3306"
    networks:
      - azion-network
...

当我尝试创建 dbs-poa-loc001d 服务(项目的数据库)时,出现以下错误:

Starting dbs-poa-loc001d ... done
Attaching to dbs-poa-loc001d
dbs-poa-loc001d    | Initializing database
dbs-poa-loc001d    | mysqld: Can't create/write to file '/var/lib/mysql/is_writable' (Errcode: 13 - Permission denied)
dbs-poa-loc001d    | 2019-01-11T01:17:52.060984Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
dbs-poa-loc001d    | 2019-01-11T01:17:52.062286Z 0 [ERROR] --initialize specified but the data directory exists and is not writable. Aborting.
dbs-poa-loc001d    | 2019-01-11T01:17:52.062299Z 0 [ERROR] Aborting
dbs-poa-loc001d    | 
dbs-poa-loc001d exited with code 1

在我工作的 MacOS 计算机上不会发生此错误,但在我的家用计算机(运行 Ubuntu 16.04)中会发生。我确实注意到mysql_backup为保存卷数据而创建的主机上的文件夹设置为组和用户根。谁能告诉我发生了什么,我该如何解决?已经尝试但没有成功:

我当前的设置和安装版本是:

标签: dockerdocker-composeubuntu-16.04docker-volume

解决方案


您可以尝试将权限设置mysql_backup为 1001:0 吗?
类似sudo chown -R 1001:0 ./mysql_backup
或替代的东西,但前提是文件夹为空 sudo chmod 777 ./mysql_backup

关于 percona Dockerfile mysql 用户 id 是 1001 https://github.com/percona/percona-docker/blob/master/percona-server.80/Dockerfile


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