无法通过unix：///var/run/docker.sock连接到Docker守护程序。泊坞窗守护程序正在运行吗？ [英] Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

问题描述

问题：我正在尝试在vagrant中运行docker，我的Vagrantfile包含以下内容：-

Problem: I am trying to run docker inside vagrant, my Vagrantfile contains following:-

  config.vm.provision "docker" do |d|
     d.run "ubuntu",
       cmd: "bash -l",
       args: "-v '/vagrant:/var/www'"
  end

docker已安装，但是当我运行任何命令时，它显示以下错误：-

docker gets installed but when I run any command it gives the error below:-

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

我尝试过

1. https://docs.oracle.com /cd/E52668_01/E75728/html/section_rdz_hmw_2q.html

以 root

logged in as root into vagrant and started docker still same problem.

在/var/run/docker.sock上尝试 chmod c>文件

tried chmod on /var/run/docker.sock file

似乎没有任何作用。

ps -ef 的输出是

/usr/bin/dockerd

docker-containerd -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --metrics-interval=0 --start-timeout 2m --state-dir 
/var/run/docker/libcontainerd/containerd --shim docker-containerd-shim --runtime docker-runc

推荐答案

这是我身上发生的事情，这可能是其他人可能的解决方案。我正在 Ubuntu 16.04 上运行。

Here is what happened to me and what could be a possible solution for someone else. I'm running on Ubuntu 16.04.

我最终清除并重新安装了 docker-ce 安装中的所有内容。我是说一切仍然无法正常工作...

I ultimately purged and reinstalled everything from the docker-ce install. I mean everything. Still not working...

通过我的互联网向导，我找到了一篇文章（我不记得在哪里，有那么多），提到该文件位于在：

Through my internet wizardry I was able to find an article (I can't recall where, there were so many) mentioning that the file located at:

$ sudo nano /etc/systemd/system/docker.service

$ sudo nano /etc/systemd/system/docker.service

在Execstart的守护进程处有一个-d。对我而言并非如此。我有... daemon -D ...，但是我确实注意到它指向 / usr / bin / local / docker 。那不存在，但是存在的是 / usr / bin / docker 。在该位置，您还将找到docker-containerd，dockerd等...

Had a -d in the place of the daemon at Execstart. That wasn't the case for me. I had ...daemon -D..., but I did notice that it was pointing to /usr/bin/local/docker. That didn't exist, but what does exist is /usr/bin/docker. In that location you will also find docker-containerd, dockerd, etc...

无论如何，我对docker.service文件进行了更改-只需删除 /本地。已保存。然后：

Anyway, I made the change to the docker.service file--simply dropping /local out of there. Saved. Then:

$ systemctl daemon-reload
$ sudo service docker restart
$ sudo service docker status (should see active (running))
$ sudo docker run hello-world

成功！

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