DockerCompose常见问题整理

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Docker Compose 常见问题整理

容器内部无法通信

将容器处于同一个自定义网络即可

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services:
  mysql:
    networks:
      - test-network
  nacos:
    networks:
      - test-network
      
networks:
  test-network:
    external: true

MySQL 无法执行初始化 sql

需要保证 mysql/data 目录为空

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volumes:
  - ./mysql/initdb:/docker-entrypoint-initdb.d

WARNING，需要设置 ‘vm.overcommit_memory = 1’

提示：WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
解决：

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wsl --list --verbose
wsl -d docker-deskstop
sysctl vm.overcommit_memory=1

Redis 指定配置文件启动失败

原因：配置文件设置了 daemonize yes，与 compose up -d 冲突
解决：设置 daemonize no

端口不可用

netstat -ano | findstr 8080，查看端口是否真的没有占用

提示：Error response from daemon: Ports are not available: exposing port TCP 0.0.0.0:8080 -> 0.0.0.0:0: listen tcp 0.0.0.0:8080: bind: An attempt was made to access a socket in a way forbidden by its access p ermissions.

解决：

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https://medium.com/@sevenall/completely-solve-the-problem-of-docker-containers-not-starting-or-running-on-windows-10-due-to-port-57f16ed6143

netsh int ipv4 set dynamic tcp start=49152 num=16384
netsh int ipv6 set dynamic tcp start=49152 num=16384
重启电脑