lucaswilliameufrasio/backend-cockfighting-q1-2024-poc

Just some attempts for "Rinha de Backend 2024 Q1"

Backend Cockfighting Q1 2024 POC

Note1: ⚠️ This README does not cover the Windows and Mac process ⚠️

Note2: If you are a Docker Rootless user, i suggest you to use sudo because Docker Rootless runs slirp4netns with the --disable-host-loopback option, so the Gatling cannot access localhost.

How to build the image

docker build -t gatling-on-docker -f Dockerfile .

How to run the container

1. Run the container using the following command:

docker run -it -d --network=host --name gatling gatling-on-docker

Note: ensure to only remove --network=host if you know how to configure the host.docker.internal, or if you will call your machine's local ip, or if you are just not using Linux.

2. Execute the following command to start running the default simulation or rinha de backend simulation:

• The default simulation

docker exec gatling /opt/gatling/bin/gatling.sh -rm local -sf /opt/gatling/user-files/simulations -s computerdatabase.ComputerDatabaseSimulation -rf /opt/gatling/results

• The rinha's simulation

docker exec gatling /opt/gatling/bin/gatling.sh -rm local -sf /opt/gatling/user-files/simulations -s RinhaBackendCrebitosSimulation -rf /opt/gatling/results

How to stop and remove the gatling container from your machine

docker stop gatling && docker rm gatling

How to run the container using a simulation from another Rinha (maybe Q2 or 2025?)

1. Start the container

docker run -it -d -v /path/to/custom/config:/opt/gatling/conf \   
  -v /path/to/custom/user-files:/opt/gatling/user-files \   
  -v /path/to/results:/opt/gatling/results \   
  --network=host --name galing gatling-on-docker

2. Execute your simulation

docker exec gatling /opt/gatling/bin/gatling.sh -rm local -sf /opt/gatling/user-files/simulations -s <name_of_your_simulation> -rf /opt/gatling/results