Cassandra-based Screenshot Sharing Service (CSSS)

CSSS is a Cassandra-based service that allows users to upload and share their images.

Fault-tolerant, distributed, and scalable. What more could one want from a screenshot-sharing service?

Installation

To quickly try it out just copy this repo and run docker compose up!

This will spin up 3 cassandra instances, 1 frontend and also will apply schemas that are stored in cql folder.

Note that Cassandra will take some time to spin up, when all 3 instances will be healthy then cassandra-init service will start applying all migrations stored inside cql folder.

Prerequisites

• Docker + Buildx
• Git

git clone https://github.com/hugmouse/csss
cd csss
docker network create cassandra
docker compose up -d

Now you can navigate to http://localhost:8080 and use the CSSS!

Hacking

• Database migrations should be placed at cql folder
• Static files (JS, CSS etc.) in static
• Go templates in template

All the logic is placed inside of main.go for simplicity’s sake. Templates and the CSS are basic for the same reason - you can customize it to your heart's content!

Cassandra related

To activate interactive CQLSH, you can do the following:

docker run -it --rm --network cassandra cassandra cqlsh cassandra-1

To simulate a node crash, either disable gossip using nodetool disablegossip or stop one of the Cassandra containers.

Deploying

Remember to change cluster address inside of main.go and replication settings as needed.