The Paketo Build System Buildpack is a Cloud Native Buildpack that enables the building of JVM applications from source.
This buildpack is designed to work in collaboration with other buildpacks that provide JDKs.
Behavior
This buildpack will participate if any of the following conditions are met
<APPLICATION_ROOT>/build.gradle exists
<APPLICATION_ROOT>/build.gradle.kts exists
<APPLICATION_ROOT>/pom.xml exists
The buildpack will do the following for Gradle projects:
Requests that a JDK be installed
Links the ~/.gradle to a layer for caching
If <APPLICATION_ROOT>/gradlew exists
Runs <APPLICATION_ROOT>/gradlew --no-daemon -x test build to build the application
If <APPLICATION_ROOT>/gradlew does not exist
Contributes Gradle to a layer with all commands on $PATH
Runs <GRADLE_ROOT>/gradle -x test build to build the application
Removes the source code in <APPLICATION_ROOT>
Expands <APPLICATION_ROOT>/build/libs/*.[jw]ar to <APPLICATION_ROOT>
The buildpack will do the following for Maven projects:
Requests that a JDK be installed
Links the ~/.m2 to a layer for caching
If <APPLICATION_ROOT>/mvnw exists
Runs <APPLICATION_ROOT>/mvnw -Dmaven.test.skip=true package to build the application
If <APPLICATION_ROOT>/mvnw does not exist
Contributes Maven to a layer with all commands on $PATH
Runs <MAVEN_ROOT>/mvn -Dmaven.test.skip=true package to build the application
Removes the source code in <APPLICATION_ROOT>
Expands <APPLICATION_ROOT>/target/*.[jw]ar to <APPLICATION_ROOT>
Configuration
Environment Variable
Description
$BP_BUILD_ARGUMENTS
Configure the arguments to pass to build system. Defaults to --no-daemon -x test build for Gradle and -Dmaven.test.skip=true package for Maven.
$BP_BUILT_MODULE
Configure the module to find application artifact in. Defaults to the root module (empty).
$BP_BUILT_ARTIFACT
Configure the built application artifact explicitly. Supersedes $BP_BUILT_MODULE Defaults to build/libs/*.[jw]ar for Gradle and target/*.[jw]ar for Maven.
License
This buildpack is released under version 2.0 of the Apache License.