docker-compose up解决错误ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is

女爷i 2021-12-04 09:15 123阅读 0赞

这个错误可能**不经意**间就出现，在开发的时候倒无所谓，就怕在线上环境遇到。

本博客用的环境就是docker搭建的，偶尔有那么几次博客无法访问，大部分是`up`或者`build`时候出了问题 /哭笑。

如下是详细错误内容，我猜你的跟我的应该一毛一样：

$ docker-compose up
    ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running?
    
    If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.

导致这个问题的**原因实在多**，所以把解决方法一一列出。

## 1 docker服务没启动，那就启动 ##

$ sudo systemctl start docker     // 或者 sudo service docker start
    $ docker-compose up

## 2 docker服务启动了，但是一些缓存影响了 ##

那就重启

$ sudo systemctl restart docker   // 或者 sudo service docker restart
    $ docker-compose up

## 3 当前用户不在`docker`用户组 ##

那就把自己加到`docker`用户组

$ sudo gpasswd -a ${USER} docker
    $ docker-compose up

添加到`docker`用户组后要重新登录shell再`up`。

## 4 也许用sudo可能有效 ##

$ sudo docker-compose up

## 5 docker-compose版本太老了 ##

那就更新版本

$ sudo curl -L "https://github.com/docker/compose/releases/download/1.23.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
    $ sudo chmod +x /usr/local/bin/docker-compose
    $ docker-compose up

点击这里查看[docker-compose官方安装教程][docker-compose]（可能需要梯子）。

## 6 重启系统吧 ##

$ sudo reboot
    $ docker-compose up

这么几种方案，总有一款适合你，嘿嘿～～～

## ##

原文地址：[https://www.awaimai.com/2587.html\#2\_docker][https_www.awaimai.com_2587.html_2_docker]

[docker-compose]: https://docs.docker.com/compose/install/#install-compose
[https_www.awaimai.com_2587.html_2_docker]: https://www.awaimai.com/2587.html#2_docker

docker-compose up解决错误ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is

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