我在装有Ubuntu操作系统的机器上安装了Docker。 当我跑步时:
sudo docker run hello-world
一切都很好，但是我想隐藏sudo命令以使该命令更短。 如果我写的命令没有sudo
docker run hello-world
显示如下:
docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.35/containers/create: dial unix /var/run/docker.sock: connect: permission denied. See 'docker run --help'.
当我试图跑步时，同样的情况也会发生:
docker-compose up
我该如何解决这个问题?
当前回答
我尝试了所描述的所有方法，但都无济于事。解决方案是在运行selenoid和selenoid-ui时使用——use-drivers参数。下面是我的Dockerfile的完整列表。
FROM selenoid/chrome
USER root
RUN apt-get update
RUN apt-get -y install docker.io
RUN curl -s https://aerokube.com/cm/bash | bash
RUN ./cm selenoid start --vnc --use-drivers
RUN ./cm selenoid-ui start --use-drivers
EXPOSE 4444 8080
CMD ["-conf", "/etc/selenoid/browsers.json", "-video-output-dir", "/opt/selenoid/video/"]
其他回答
一个简单的破解方法就是以“超级用户”的身份执行。
要访问超级用户或root用户，请执行以下命令:
在user@computer:
$sudo su
输入密码后，你将进入root@computer:
$docker run hello-world
我用命令解决了这个错误:
$ sudo chmod 666 /var/run/docker.sock
Lightdm和kwallet附带了一个bug，在登录时似乎无法通过补充组。为了解决这个问题，除了sudo usermod -aG docker $USER，我还必须注释掉
auth optional pam_kwallet.so
auth optional pam_kwallet5.so
to
#auth optional pam_kwallet.so
#auth optional pam_kwallet5.so
在/etc/pam.D /lightdm重启之前，对于docker-group实际有效果。
Bug: https://bugs.launchpad.net/lightdm/+bug/1781418和这里:https://bugzilla.redhat.com/show_bug.cgi?id=1581495
重启机器对我很有效。
$ reboot
在Centos上安装Docker后。在运行下面的命令时，我得到下面的错误。
[centos@aiops-dev-cassandra3 ~]$ docker run hello-world
docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.soc k/v1.40/containers/create: dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.
修改docker.socket的Group和Permission
[centos@aiops-dev-cassandra3 ~]$ ls -l /lib/systemd/system/docker.socket
-rw-r--r--. 1 root root 197 Nov 13 07:25 /lib/systemd/system/docker.socket
[centos@aiops-dev-cassandra3 ~]$ sudo chgrp docker /lib/systemd/system/docker.socket
[centos@aiops-dev-cassandra3 ~]$ sudo chmod 666 /var/run/docker.sock
[centos@aiops-dev-cassandra3 ~]$ ls -lrth /var/run/docker.sock
srw-rw-rw-. 1 root docker 0 Nov 20 11:59 /var/run/docker.sock
[centos@aiops-dev-cassandra3 ~]$
使用以下docker命令进行验证
[centos@aiops-dev-cassandra3 ~]$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:c3b4ada4687bbaa170745b3e4dd8ac3f194ca95b2d0518b417fb47e5879d9b5f
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
[centos@aiops-dev-cassandra3 ~]$
