In the previous part, I’ve shown how to set up a simple swarm cluster with 1 master and 2 worker nodes. In this part, I’m gonna continue with how to configure it to work with gitlab and also achieve zero downtime deployment.

Being able to develop an application of any kind and automatically deploy it is the norm nowadays. I have been using dokku in my personal deployment stack for several years now. And at work, we are using Kubernetes. I love the idea of Kubernetes but wanted to try something else, and came across docker swarm mode. In this blog post series, I’m gonna describe the process of setting up a docker swarm cluster, putting traefik in front as a reverse proxy and automatically deploying via gitlab without downtime.