aroundthfur/server-admin

openresearch/interview

Server Admin

This is a simple client server system with a central server application an multiple clients.

Infrastructure

The application is based on

• Postgresql and
• Kafka

For development purposes the project includes 2 docker configurations:

docker/client

The application can be developed within this container. Intellij supports running applications inside a container instead of locally. Make sure to run the client with the same network as the kafka containers.

Attention: This image isn't meant for production use!

docker/infra

This defines a postgresql server and a 3 node kafka cluster. Use the compose file included in the folder.

Kafdrop is also started for easier kafka insight.

Applications

You can find screenshots for IntelliJ run configurations for client and server.

sa-server

Simple shell applications that listens to kafka and allows to type commands into the local shell.

The included default config is meant to be run from within a docker container. It needs to be started in the same network as postgres and kafka.

sa-client

Client application that sends a regular heartbeat to the central sa-server application. It also supports command line input to trigger commands.

The included default config is meant to be run from within a docker container as defined in docker/client. It needs to be in the same network as kafka. The client application is using a local file based sqlite database instead of relying on any server.

The client container needs to be built before it can be used. A script build-debian.sh is included for that purpose.