[JENKINS-48042] Cannot give build-arg or environment variable to docker.build

I have a Dockerfile like this:

ARG REGISTRY_URL=machine:5000

ARG PI_VERSION=0.4

FROM ${REGISTRY_URL}/java:${PI_VERSION}

I cannot set REGISTRY_URL, neither by build-arg nor environment variable.

In jenkinsfile:

def dockerImage = docker.build "${VAR_DOCKER.registry}${item.name}:${item.versionDocker}"

Even with withEnv, it does not recognize new variable.

---
Originally reported by antoinetran, imported from: Cannot give build-arg or environment variable to docker.build

• status: Open
  
• priority: Minor
  
• component(s): docker-workflow-plugin
  
• resolution: Unresolved
  
• votes: 1
  
• watchers: 2
  
• imported: 2025-12-07
  

Raw content of original issue

I have a Dockerfile like this:


ARG REGISTRY_URL=machine:5000

ARG PI_VERSION=0.4

FROM ${REGISTRY_URL}/java:${PI_VERSION}


I cannot set REGISTRY_URL, neither by build-arg nor environment variable.


In jenkinsfile:

def dockerImage = docker.build "${VAR_DOCKER.registry}${item.name}:${item.versionDocker}"

Even with withEnv, it does not recognize new variable.

• environment: docker-ce-17.06.0