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Heroku JVM Application Deployer  

Command line tool to deploy JVM applications directly to Heroku without pushing to a Git repository. It uses Heroku's Platform API. This can be useful when deploying from a CI server, deploying pre-built JAR or WAR files.

It will automatically include and configure a Tomcat server via webapp-runner if a WAR file is deployed.

[!IMPORTANT] This repository previously contained Heroku's Maven Plugin for deploying JVM applications. This plugin is no longer maintained. Customers currently using the Maven Plugin can use the new Heroku JVM application deployer CLI to deploy JAR and WAR files to Heroku without using Git.

The code of the last Heroku Maven plugin release can be found here: https://github.com/heroku/heroku-jvm-application-deployer/tree/3.0.7

Table of Contents

• Installation
• Usage
• Requirements
• Configuration
  • Heroku API Key

Installation

Download the JAR file from the latest release on GitHub. Older releases can be downloaded from the GitHub releases list.

Usage

java -jar heroku-jvm-application-deployer.jar --help

Usage: heroku-jvm-application-deployer [-dhV] [-a=name] [-j=string]
                                       [--jar-opts=options]
                                       [--webapp-runner-version=version] [-b
                                       [=buildpack...]]... [-i[=path...]]...
                                       [file]
Application for deploying Java applications to Heroku.
      [file]                The JAR or WAR file to deploy.
  -a, --app=name            The name of the Heroku app to deploy to. Defaults
                              to app name from git remote.
  -b, --buildpack[=buildpack...]
                            Defaults to heroku/jvm.
  -d, --disable-auto-includes
                            Disable automatic inclusion of certain files.
  -h, --help                Show this help message and exit.
  -i, --include[=path...]   Additional files or directories to include.
  -j, --jdk=string          Set the Heroku JDK selection string for the app (i.
                              e. 17, 21.0.1).
      --jar-opts=options    Add command line options for when the JAR is run.
  -V, --version             Print version information and exit.
      --webapp-runner-version=version
                            The version of webapp-runner to use. Defaults to
                              the most recent version (9.0.83.0).

Requirements

• Java 8u101 or higher (versions < u101 might experience difficulties displaying build log output)

Configuration

Heroku API Key

This plugin uses Heroku's Platform API and thus requires an API key to function. If you have the Heroku CLI installed and logged in with heroku login, the plugin will automatically pick up your API key. Alternatively, you can use the HEROKU_API_KEY environment variable to set your API key:

$ HEROKU_API_KEY="xxx-xxx-xxxx" java -jar heroku-jvm-application-deployer.jar ...