opal-logging-service

Building and deploying the application

Building the application

The project uses Gradle as a build tool. It already contains ./gradlew wrapper script, so there's no need to install gradle.

To build the project execute the following command:

  ./gradlew build

Running the application

Create the image of the application by executing the following command:

  ./gradlew assemble

Note: Docker Compose V2 is highly recommended for building and running the application. In the Compose V2 old docker-compose command is replaced with docker compose.

Create docker image:

  docker compose build

Run the distribution (created in build/install/opal-logging-service directory) by executing the following command:

  docker compose up

This will start the API container exposing the application's port (set to 4065 in this template app).

In order to test if the application is up, you can call its health endpoint:

  curl http://localhost:4065/health

You should get a response similar to this:

  {"status":"UP","diskSpace":{"status":"UP","total":249644974080,"free":137188298752,"threshold":10485760}}

Alternative script to run application

To skip all the setting up and building, just execute the following command:

./bin/run-in-docker.sh

For more information:

./bin/run-in-docker.sh -h

Script includes bare minimum environment variables necessary to start api instance. Whenever any variable is changed or any other script regarding docker image/container build, the suggested way to ensure all is cleaned up properly is by this command:

docker compose rm

It clears stopped containers correctly. Might consider removing clutter of images too, especially the ones fiddled with:

docker images

docker image rm <image-id>

There is no need to remove postgres and java or similar core images.

License

This project is licensed under the MIT License - see the LICENSE file for details