build(java): Introduce Native Image testing build script changes (#271)

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -1,3 +1,3 @@
 docker:
  image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
- digest: sha256:13b7387edb404234610d30473ac48210ae7fe42a136335ee2b2f8a07c4c7f6a5
+ digest: sha256:d4b2141d65566523dfd523f63c6e6899ab1281463bce182a9f600e74b0511875

.kokoro/build.sh

@@ -69,6 +69,11 @@ integration)
  verify
  RETURN_CODE=$?
  ;;
+graalvm)
+ # Run Unit and Integration Tests with Native Image
+ mvn test -Pnative -Penable-integration-tests
+ RETURN_CODE=$?
+ ;;
 samples)
  SAMPLES_DIR=samples
  # only run ITs in snapshot/ on presubmit PRs. run ITs in all 3 samples/ subdirectories otherwise.

.kokoro/presubmit/graalvm-native.cfg

@@ -0,0 +1,33 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+ key: "TRAMPOLINE_IMAGE"
+ value: "gcr.io/cloud-devrel-kokoro-resources/graalvm"
+}
+
+env_vars: {
+ key: "JOB_TYPE"
+ value: "graalvm"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+ key: "GCLOUD_PROJECT"
+ value: "gcloud-devel"
+}
+
+env_vars: {
+ key: "GOOGLE_CLOUD_PROJECT"
+ value: "gcloud-devel"
+}
+
+env_vars: {
+ key: "GOOGLE_APPLICATION_CREDENTIALS"
+ value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+ key: "SECRET_MANAGER_KEYS"
+ value: "java-it-service-account"
+}