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README.md

Build builder of java version 11

Build java11 stack

bazel run //builders/java11/stack:build

This command creates two images:

openfunctiondev/buildpacks-java11-run:v1
openfunctiondev/buildpacks-java11-build:v1

Build java11 builder

bazel build //builders/java11:builder.image

This command creates one image:

of/java11

Tag and push:

docker tag of/java11 <your container registry>/java11:v1
docker push <your container registry>/java11:v1

Test

bazel test //builders/java11/acceptance/...

Output example:

INFO: Analyzed 2 targets (0 packages loaded, 0 targets configured).
INFO: Found 1 target and 1 test target...
INFO: Elapsed time: 531.375s, Critical Path: 531.11s
INFO: 7 processes: 1 internal, 5 linux-sandbox, 1 local.
INFO: Build completed successfully, 7 total actions
//builders/java11/acceptance:java_fn_test                                PASSED in 529.5s

INFO: Build completed successfully, 7 total actions

Run

Download gcp samples:

git clone https://github.com/GoogleCloudPlatform/buildpack-samples.git

Build the function:

Add --network host to pack and docker command if they cannot reach internet.

cd buildpack-samples/sample-functions-framework-java-mvn/
pack build function-java --builder of/java11 --env FUNC_NAME="com.google.HelloWorld"
docker run --rm -p8080:8080 function-java

Visit the function:

curl http://localhost:8080

Output example:

Hello World!

Run on OpenFunction

  1. Install OpenFunction
  2. Run a function

Definition of a Function for java 11 is shown below:

apiVersion: core.openfunction.io/v1alpha1
kind: Function
metadata:
  name: java-sample
spec:
  version: "v1.0.0"
  image: "<your registry name>/sample-java11-func:latest"
  # port: 8080 # default to 8080
  build:
    builder: "openfunctiondev/java11-builder:v1"
    params:
      FUNC_NAME: "com.google.HelloWorld"
      FUNC_TYPE: "http"
      # FUNC_SRC: "main.py" # for python function
    srcRepo:
      url: "https://github.com/GoogleCloudPlatform/buildpack-samples.git"
      sourceSubPath: "sample-functions-framework-java-mvn"
    registry:
      url: "https://index.docker.io/v1/"
      account:
        name: "basic-user-pass"
        key: "username"
    # serving:
    # runtime: "Knative" # default to Knative