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javadockermavennexus

How to connect to Nexus and download jar file as dependency when building a docker image of a java project

  1. I have a nexus docker container running on Port 8081, where I have deployed a JAR file.

  2. I have a simple Java + Maven project, which downloads few dependencies from the Central and this one particular JAR from Nexus. I have a customized settings.xml to download

  • Below is the snapshot:

(a) Dockerfile, which tries to builds an image

(b) Customized settings.xml

(c) pom.xml: distribution management section

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When building (docker build -t= .), it downloads all dependencies from central, but fails to connect to the nexus and download.

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*Note: Since everything is for learning purpose, everything is on my PC i.e localhost.

Update:

Below is the port mapping of docker containers. enter image description here

Solution

  • docker build runs in a separate container where there is nothing under localhost:8081. Try to build using your host network:

    docker build -t imagename --network host .