chanpreet08/openfaas-jvm-afterburn-template

OpenFaaS after-burn JVM template

JVM OpenFaaS Afterburn

OpenFaas JVM template supporting afterburn with the new watchdog implementation. This is an answer to the cold start problem when using the serverless architecture.

Build and Deploy to OpenFaaS

• Deploy OpenFaaS

• Install OpenFaaS CLI

• Get the template and create the function and run the sample

faas-cli template pull https://github.com/amirkarimi/openfaas-jvm-afterburn-template
faas-cli new --lang jvm-afterburn jvm_burner

faas-cli build -f jvm_burner.yml
faas-cli deploy -f jvm_burner.yml
echo test | faas-cli invoke jvm_burner

Update the function

You just need to generate a JAR file using your favorate langauge and tools, rename the JAR file to app.jar and copy to the function folder.

• Scala Sample
• Java Sample

Run watchdog locally

This is useful for testing/debugging purposes.

• Build the new version of watchdog supporting Afterburn. Navigate to another dir.

git clone [email protected]:openfaas-incubator/of-watchdog.git \
cd of-watchdog \
./build.sh

• Copy of-watchdog to a where the main JAR file exists

• Run watchdog:

mode=afterburn fprocess="java -jar app.jar" ./of-watchdog

• Send the requests to localhost:8081