No direct access to the internet If you work at a company that controls their software bill of materials, it's quite common to be blocked from directly downloading from: Maven Central Docker hub GitHub (the public parts) Getting the bits Maven Maven is first, because without it, you won't be able to compile your Spring Boot application, let alone move on to turning it into a native docker image. I will be showing changes need to work with artifactory, but you should be able to adapt it to other mirror solutions. repositories { maven { name = "central" url = "https://artifactory.example.com/central" credentials { username = "${project.ext.properties.artifactory_username}" password = "${project.ext.properties.artifactory_apikey}" } } } With this configuration change, you should be able to download your plugins and dependencies, allowing you to compile and ...