我正在学习DevOps的基本步骤，我的任务是在Maven项目中使用jenkins和Docker从存储库创建CICD管道

错误 它向我显示docker守护进程可能未运行的错误

[INFO] ------------------------------------------------------------------------
[CICD-Maven-Jenkins-Docker-Integration] $ docker build -t imdhruv28/cicd-docker-jenkins-integration --pull=true /var/lib/jenkins/workspace/CICD-Maven-Jenkins-Docker-Integration
time="2020-03-24T14:27:15+05:30" level=error msg="failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial unix /var/run/docker.sock: connect: permission denied"
error during connect: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.40/build?buildargs=%7B%7D&cachefrom=%5B%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&dockerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&networkmode=default&pull=1&rm=1&session=3maudqn4r7n8md6azfdxz34vb&shmsize=0&t=imdhruv28%2Fcicd-docker-jenkins-integration&target=&ulimits=null&version=1: context canceled
Build step 'Docker Build and Publish' marked build as failure
Finished: FAILURE

Dockerfile

FROM openjdk:8

EXPOSE 8081

ADD target/CICD-Docker-Jenkins-Integration.jar  CICD-Docker-Jenkins-Integration.jar

ENTRYPOINT ["java", "-jar", "/CICD-Docker-Jenkins-Integration.jar"]

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这里有两种可能的选择：

Docker守护进程确实没有运行

执行管道的用户未添加到

docker

组

---

要调试的算法是首先手动检查Docker是否实际运行，然后验证Jenkins使用哪个用户执行管道（将

whoami

添加到要打印的管道中），最后确保该用户被添加到

docker

组。

docker是否在Jenkins所在的机器上运行？如何检查？运行任何命令，例如

docker version

，并查看它是否响应。是的，它分别为服务器和客户端提供响应输出。这可能是第二件事。检查执行Jenkins作业的用户是否在

docker

组中。

can any one will help me to solve this?