OLSS demo application

Manual build instructions

The build requires Java 11 sdk installed on your machine. To build, issue the following command:

$ ./mvnw package

Manual docker build instructions

A docker image for the app can be built using the following commands:

$ ./mvnw package
$ docker build --file docker/Dockerfile -t olss-demo-app .

Github actions build

See here.

Gitlab CI build

See here.

Demo app APIs

The OLSS provides a simple REST api described in this section.

Actuator API

GET /actuator/info

Returns information about the app (version, git commit id)

GET /actuator/health

Returns health status information

Hello API

GET /api/hello

Retutns a gentle hello from the API

Application state API

POST /api/application-state/refuse-traffic

Configures application so that traffic is refused, i.e. the readiness probe fails.

POST /api/application-state/accept-traffic

Configures application so that traffic is accepted, i.e. the readiness probe succeeds.

POST /api/application-state/break

Configures application so that liveness probe fails, i.e. the application is considered broken.

Memory Hog API

POST /api/memory/grow

Allocates a 10M heap chunk and returns the memory used by the memory hog.

POST /api/memory/clear

Clears the memory chunks and returns the memory used by the memory hog.