buildpack.scriptless.toml

[package]
id = "io.buildpacks.zulu"
name = "Azul Zulu Buildpack"
version = "0.0.9"

[detect]
provides = [
  "jdk"
]

# if there is a bin/build, this will always run first.
[[build.layers]]
id = "jdk" # lifecycle will check if this layer exists/cached
cache = "true"
launch = "true"
build = "true"
run = [
  "export JDK_URL=https://cdn.azul.com/zulu/bin/zulu8.28.0.1-jdk8.0.163-linux_x64.tar.gz",
  "wget -q -O - $JDK_URL | tar pxz -C $1/jdk --strip-components=1"
]

  [build.layers.metadata]
  version = "zulu-1.8.0_163"

  [build.layers.env]
  JAVA_HOME = "$1/jdk"
  LD_LIBRARY_PATH = "$JAVA_HOME/jre/lib/amd64/server"

  [[build.layers.profile]]
  name = "jdk.sh"
  script = [
    "export JAVA_HOME=$1/jdk",
    "export LD_LIBRARY_PATH=$JAVA_HOME/jre/lib/amd64/server"
  ]

[[build.launch.processes]]
type = "web"
command = "java -jar *.jar"

buildpack.toml

[buildpack]
id = "io.buildpacks.warbler"
name = "Warbler Buildpack"
version = "0.0.9"

[buildpack.detect]
requires = [
  "jruby",
  "warbler",
  "bundler"
]
provides = [
  "war"
]

# if there is a bin/build, this will always run first.
[buildpack.build]
run = [
  "rake war",
  "rake db:migrate"
]

[[buildpack.build.launch.processes]]
type = "web"
command = "java -jar myapp.war"