menuka94 / sustain-query-service

Project SUSTAIN

Sustain Query Service

Sustain Query Service provides a gRPC server to execute MongoDB queries received from a gRPC client. An example of a gRPC client is provided for testing. The gRPC server uses a MongoClient instance to establish a connection to a mongo instance, running either as a mongos router in the case of a sharded cluster, or a mongod instance in the case of an unsharded replica set. The connection configuration is derived from src/main/java/resources/config.properties file at compile-time.

Usage

Set Environment Variables

• Create a new file env.sh from env.sh.example and update values.
• Execute run.sh

To clean the project of any build-generated files:

• $ make clean

To compile the project and generate the build/ directory:

• $ make

Once the project is compiled and the build/ directory has been generated, you can start the gRPC server:

• $ make server

Running a Single Test

./gradlew test --tests SustainServerTest.testExampleEchoQuery

Docker

To build and run a Docker container of this project:

• $ docker build -t sustain-query-service .
• $ docker run -it --name=sustain-query-service -p 50051 sustain-query-service

Kubernetes

To build and run this project as a Kubernetes Deployment, connecting to a sharded cluster:

• $ kubectl apply -f deploy/deployment.yaml