Kokoro Job for google-http-java-client

[suztomo]

This is my note about how Kokoro job for Linkage Monitor is setup.

One of existing jobs: "cloud-devrel/client-libraries/java/google-http-java-client/presubmit/java8".

Proposal: create the following files in Piper and google-http-java-client GitHub repository:

Kokoro job config linkage-monitor.cfg

A new Kokoro job config file as a sibling of the java8.cfg in Piper.

Kokoro build config .kokoro/presubmit/linkage-monitor.cfg

A new Kokoro build config file as a sibling of .kokoro/java8.cfg

Similar to .kokoro/presubmit/java8.cfg but having "linkage-monitor.sh" for TRAMPOLINE_BUILD_FILE

.kokoro/linkage-monitor.sh

A new shell script to install snapshot google-http-java-client locally and run linkage monitor.

Similar to .kokoro/build.sh but not running test but running LinkageMonitor.

mvn install -DskipTests

curl http://... linkage-monitor-all-deps.jar   # A GCS URL which suztomo will create
java -jar linkage-monitor-all-deps.jar "com.google.cloud:libraries-bom"

Todo: talk this to Elliotte, and then Jeff.

[suztomo]

Elliotte ok-ed about the design.

@chingor13 What do you think? If you're ok, I'll make CL and PR for the these files.

[chingor13]

Sounds good to me. Long term, we could possibly package this in a docker image which could have the linkage-monitor and the shell script already included for maximum portability.

[elharo]

Can kokoro run a docker image? That would be great if so. Heck, we could even use jib to build the image if we want to be ultra-cool. :-)

[chingor13]

Yep, all of our Java versioned tests for google-cloud-java and related libraries run on Kokoro via docker. We maintain our test images here: https://github.com/googleapis/testing-infra-docker/tree/master/java

[suztomo]

It works!