Docker无法连接到Docker守护进程

当我把Docker版本更新到0.8.0后，我在输入sudo Docker version时得到了一个错误消息:

Client version: 0.8.0
Go version (client): go1.2
Git commit (client): cc3a8c8
2014/02/19 12:54:16 Can't connect to docker daemon. Is 'docker -d' running on this host?

我按照说明，输入命令sudo docker -d，我得到了这个:

[/var/lib/docker|2462000b] +job initserver()
[/var/lib/docker|2462000b.initserver()] Creating server
open /var/lib/docker/aufs/layers/cf2414da53f9bcfaa48bc3d58360d7f1cfd3784e4fe51fbef95197709dfc285d: no such file or directory[/var/lib/docker|2462000b] -job initserver() = ERR (1)
2014/02/19 12:55:57 initserver: open /var/lib/docker/aufs/layers/cf2414da53f9bcfaa48bc3d58360d7f1cfd3784e4fe51fbef95197709dfc285d: no such file or directory

我怎么解决这个问题?

当前回答

检查你是否正在使用Docker Machine:)

运行docker-machine env default就可以了。

因为根据文档:

Docker Machine is a tool that lets you install Docker Engine on virtual hosts, and manage the hosts with docker-machine commands. You can use Machine to create Docker hosts on your local Mac or Windows box, on your company network, in your data center, or on cloud providers like AWS or Digital Ocean. Using docker-machine commands, you can start, inspect, stop, and restart a managed host, upgrade the Docker client and daemon, and configure a Docker client to talk to your host. Point the Machine CLI at a running, managed host, and you can run docker commands directly on that host. For example, run docker-machine env default to point to a host called default, follow on-screen instructions to complete env setup, and run docker ps, docker run hello-world, and so forth.

https://docs.docker.com/machine/overview/

2016-02-22 07:37:15

其他回答

我今天开始遇到这个问题。然后我看到了很多回复，但似乎没有一个对我有用。首先，大部分指令都指向linux。对于mac版本，他们都在谈论运行docker-machine。如果你安装docker工具箱，我假设你使用docker-machine，因为docker将在windows和mac平台的虚拟机中运行。但是现在是2017年，mac的docker非常稳定，因此不需要使用工具箱。

不知道守护进程是如何停止的。但要重新启动它，我所要做的就是点击“应用程序”，双击docker图标。我被要求更新和重新发布，我接受了。从那以后，一切都很顺利。

2017-01-01 18:10:28

我在Ubuntu 14.04上运行Docker 1.10时遇到了同样的问题，所有给出的答案都不能正常工作。对我来说，解决办法是在运行Docker守护进程时指定存储驱动程序。

sudo docker daemon --storage-driver=devicemapper

2016-03-09 07:58:53

我的问题是，docker的默认路径。Sock不在docker daemon所在的位置。

我的默认地址是/home/user/。Docker，但是Docker守护进程在/var/bin中。

我确实设置了env变量来设置正确的地址，这解决了问题

export DOCKER_CONFIG = '/var/bin'

https://docs.docker.com/engine/reference/commandline/cli/

我在ubuntu上安装了docker desktop，所以这可能是问题所在，或者为什么我的DOCKER_CONFIG设置不正确。

2022-09-21 11:43:36

I also had the same issue. The problem was in sockets allocated to docker-daemon and docker-client. First, permission was not set for the docker-client on docker.sock You can set it using "sudo usermod -aG docker $USER" Then check your bash file where the docker-client is running, For me it was on 0.0.0.0:2375, while docker-daemon was running on unix socket.(It was set in the configuration file of dockerd). Just comment the bash-line and it'll work fine. But if you want to make it work on TCP port instead of unix socket, change the configuration file of dockerd and set it on 0.0.0.0.2375 and keep the line in bash as it is if present or set it to 0.0.0.0:2375.

2016-09-09 08:40:56