Kubernetes vs Docker Swarm: a simple comparison
First published on the pushpanel.io blog as “Kubernetes vs Docker Swarm simple comparison” and archived here. The original domain is no longer ours, so links to it were removed and the headline rewritten for this site; the text of the post is unchanged.
| Feature | Docker Swarm | Kubernetes |
|---|---|---|
| Installation | Simple installation but resultant cluster not strong | Difficult installation and a resultant cluster is strong |
| Scalability | Unlimited nodes with a price of resources lost. 1000 nodes with 30,000 containers | 5000+ but most companies will limit you to about 250 max. 5000 nodes with 150,000 containers |
| Load Balancing | Auto load-balancing in one cluster | Manual load balancing sometimes is required for balancing traffic between pods and containers |
| Rollbacks | Automatic rollback when a deployment fails. | Automatic rollback when doing updates |
| Updates | A cluster can be upgraded in place | In-place cluster updates have been constantly maturing |
| Availability | High Availability. Auto restarting containers when host fail to deliver. | High Availability. Health checks can be defined inside pods. |
| Monitoring | 3rd party tools. | Tools built-in. |
| GUI | No GUI. 3rd party like #portainer.io | Comes with a dashboard. |