Jenkins Google Cloud SDK install with auth script

gcloud_install.sh

#Ref: https://github.com/circleci/android-cloud-test-lab/blob/master/circle.yml

export DIRECTORY="/var/jenkins_home/GoogleCloudSDK/google-cloud-sdk/bin"
if [ ! -d "$DIRECTORY" ]; then
  # Control will enter here if $DIRECTORY doesn't exist.
	cd /var/jenkins_home
	wget https://dl.google.com/dl/cloudsdk/release/google-cloud-sdk.zip -O google-cloud-sdk.zip
	unzip -o google-cloud-sdk.zip -d ./GoogleCloudSDK/
	./GoogleCloudSDK/google-cloud-sdk/install.sh
	
fi
export PATH=/var/jenkins_home/GoogleCloudSDK/google-cloud-sdk/bin:$PATH

gcloud --quiet components update
gcloud --quiet components install beta

gcloud auth activate-service-account --key-file $GCLOUD_SERVICE_AUTH
gcloud config set project addodoc-1
gcloud beta test android run --app $WORKSPACE/app/build/outputs/apk/app-debug.apk --test $WORKSPACE/app/build/outputs/apk/app-debug-androidTest-unaligned.apk --results-bucket cloud-test-jenkins

@vijaykumar.. how did you pass service_account_key (json file)... ?