我已将该jenkins用户添加到docker组中，认为这将允许Jenkins作业运行Docker命令。如果我切换到jenkins用户，则可以验证它是否可以（手动）：
ubuntu@hostname:~$ ps aux | grep java
jenkins 2210 9.5 7.5 1950316 292896 ? Sl 00:01 1:00 /usr/bin/java -jar /data/jenkins/jenkins-1.586.war --httpPort=8080 -Xloggc:/var/log/jenkins/gc.log
ubuntu@hostname:~$ getent group docker
docker:x:999:jenkins
ubuntu@hostname:~$ ls -la /var/run/docker.*
-rw-r--r-- 1 root root 4 Oct 23 18:32 /var/run/docker.pid
srw-rw---- 1 root docker 0 Oct 23 18:32 /var/run/docker.sock
ubuntu@hostname:~$ sudo su -s /bin/bash jenkins
jenkins@hostname:/home/ubuntu$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
但是，在Jenkins构建/作业期间，没有权限：
# Job log
Started by user Matt Wright
Building on master in workspace /data/jenkins/jobs/docker-base-images-build/workspace
[ssh-agent] Using credentials CI-jenkins
[ssh-agent] Looking for ssh-agent implementation...
[ssh-agent] Java/JNR ssh-agent
[ssh-agent] Started.
> git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
> git config remote.origin.url git@github.com:<redacted>/docker-base-images.git # timeout=10
Fetching upstream changes from git@github.com:<redacted>/docker-base-images.git
> git --version # timeout=10
using GIT_SSH to set credentials
> git fetch --tags --progress git@github.com:<redacted>/docker-base-images.git +refs/heads/*:refs/remotes/origin/*
> git rev-parse refs/remotes/origin/master^{commit} # timeout=10
> git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=10
Checking out Revision 83c4463e7195b412a3a803dd7338210c1a772f55 (refs/remotes/origin/master)
> git config core.sparsecheckout # timeout=10
> git checkout -f 83c4463e7195b412a3a803dd7338210c1a772f55
> git rev-list 83c4463e7195b412a3a803dd7338210c1a772f55 # timeout=10
[workspace] $ /bin/sh -xe /tmp/hudson5606381166745886966.sh
+ ./build.sh
Sending build context to Docker daemon
2014/10/24 16:14:18 Post http:///var/run/docker.sock/v1.15/build?rm=1&t=<redacted>%2Fpython%3A3.4: dial unix /var/run/docker.sock: permission denied
Build step 'Execute shell' marked build as failure
[ssh-agent] Stopped.
Notifying upstream projects of job completion
Finished: FAILURE
这是Docker 1.3.0和Ubuntu 14.04.1。有什么线索吗？
似乎与此问题有关。重新启动为我解决了这个问题。
—
smilly92 2014年
重新启动无法为我解决此问题。
—
Matt W
Jenkins似乎删除了除Jenkins用户的主组之外的其他组。当我以Jenkins用户身份从shell运行id命令时，我看到它在docker组中，但是当我在自由式作业中运行id时，它仅显示Jenkins用户。我还没有想出如何解决它。
—
约瑟夫·穆洛伊
首先确保您在docker组中具有jenkins用户。然后，如果您遇到问题的从属设备已连接到主设备，请断开连接，然后再次重新连接。通过“管理詹金斯” /“管理节点”执行此操作。
—
arminmor