Setting build args for dockerfile agent using a Jenkins declarative pipeline

Question

I\'m using the declarative pipeline syntax to do some CI work inside a docker container.

I\'ve noticed that the Docker plugin for Jenkins runs a container using the

Answer 1

You can also use the args parameter to solve the issue.
As described in Pipeline Syntax:

docker also optionally accepts an args parameter which may contain arguments to pass directly to a docker run invocation.

This is also possible when using dockerfile instead of docker in agent section.

I had the same problem like you and the following lines working fine for me:

       agent { 
            dockerfile { 
                dir 'Docker/kubernetes-cli' 
                args '-u 0:0' //Forces Container tu run as User Root                    
                reuseNode true
            }
        }