Docker Swarm: Multi-VPS Cluster Without Kubernetes

Docker Swarm: Cluster for Small Teams

Much simpler than Kubernetes, ideal for 2–10 server projects.

Initialize Cluster

docker swarm init --advertise-addr 10.0.0.1
docker swarm join --token SWMTKN-1-xxxxx 10.0.0.1:2377
docker node ls

Deploy and Scale

docker stack deploy -c docker-stack.yml myapp
docker service scale myapp_web=5
docker service update --image myapp:v2.0 myapp_app