Software Alternatives, Accelerators & Startups

Docker Swarm VS k3sup

Compare Docker Swarm VS k3sup and see what are their differences

Docker Swarm logo Docker Swarm

Native clustering for Docker. Turn a pool of Docker hosts into a single, virtual host.

k3sup logo k3sup

from Zero to KUBECONFIG in < 1 min 🚀. Contribute to alexellis/k3sup development by creating an account on GitHub.
  • Docker Swarm Landing page
    Landing page //
    2022-11-01
  • k3sup Landing page
    Landing page //
    2023-08-27

Docker Swarm features and specs

  • Simplicity
    Docker Swarm is easy to set up and use, especially for those already familiar with Docker. It integrates seamlessly into the Docker ecosystem, providing a straightforward solution for container orchestration without the need for additional tools.
  • Native Docker Integration
    Swarm is built into Docker, meaning that Docker users do not need to install or configure another orchestration tool. This provides a consistent experience from development to production.
  • Declarative Service Model
    Swarm allows users to define the desired state of their services, and the system works to maintain that state. This includes scaling services up or down, and handling load balancing.
  • Easy Scaling
    Docker Swarm makes it easy to scale applications horizontally by simply changing the number of replicas of a service. The platform manages the distribution of these replicas across the available nodes.
  • Built-in Load Balancing
    Swarm includes built-in load balancing, distributing incoming client requests to running containers based on task states and node availability.

Possible disadvantages of Docker Swarm

  • Limited Ecosystem
    Compared to Kubernetes, Docker Swarm has a more limited ecosystem of plugins, extensions, and third-party integrations. This can make it less flexible for complex or custom setups.
  • Less Feature-Rich
    Although sufficient for many use cases, Swarm lacks some advanced features that other orchestrators like Kubernetes offer, such as custom scheduling policies, complex networking configurations, and a broader range of storage options.
  • Community and Support
    The Docker Swarm community is smaller and less active compared to Kubernetes. This affects the available support, community-contributed tools, and overall development pace.
  • Scaling Limits
    While Docker Swarm can handle small to medium-sized clusters efficiently, it may not perform as well as Kubernetes in very large-scale deployments, particularly in terms of resource management and fault tolerance.
  • Future Uncertainty
    With Docker's increasing focus on Kubernetes, the long-term future of Docker Swarm is uncertain. This raises concerns about investing in a technology that might not be as actively developed or supported in the future.

k3sup features and specs

  • Simplicity
    k3sup simplifies the process of setting up a lightweight Kubernetes cluster by providing an easy-to-use CLI tool, reducing the manual effort involved.
  • Speed
    It significantly speeds up the installation of k3s by automating many of the steps, allowing users to get a cluster up and running quickly.
  • Portability
    k3sup is compatible with various environments, including Raspberry Pi, virtual machines, and cloud services, offering flexibility in deployment.
  • No Overhead
    Since k3sup installs k3s without any additional overhead, it maintains the lightweight nature of the k3s distribution.
  • Open Source
    Being open source, k3sup allows developers to contribute to its development and adapt the source code to suit their specific needs.

Possible disadvantages of k3sup

  • Limited to k3s
    k3sup is specifically designed for k3s and may not be suitable for users who need to work with larger Kubernetes distributions or have specific deployment requirements not covered by k3s.
  • Basic Features
    While k3sup simplifies setup, it might lack some of the advanced features that more robust, full-featured Kubernetes management tools provide.
  • Community Support
    As a smaller, community-driven project, k3sup may not offer the same level of support and resources as more established Kubernetes tools.
  • Limited Automation
    Although k3sup automates the installation of k3s, further configuration and management of the cluster after setup may require additional scripting or manual intervention.
  • Dependency on SSH
    k3sup relies on SSH for remote connections, which means it requires proper SSH setup and permissions, potentially complicating configurations for some users.

Docker Swarm videos

Kubernetes vs Docker Swarm | Container Orchestration War | Kubernetes Training | Edureka

More videos:

  • Review - Roberto Fuentes – NodeJS with Docker Swarm

k3sup videos

I - Pi &amp; Kubernetes with k3s, k3sup, arkade and OpenFaaS

Category Popularity

0-100% (relative to Docker Swarm and k3sup)
Developer Tools
80 80%
20% 20
Cloud Computing
58 58%
42% 42
DevOps Tools
74 74%
26% 26
Containers As A Service
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Docker Swarm and k3sup

Docker Swarm Reviews

Top 12 Kubernetes Alternatives to Choose From in 2023
With Docker Swarm, you can create and manage a cluster of Docker nodes, enabling the deployment and scaling of containerized applications across a distributed environment.
Source: humalect.com
11 Best Rancher Alternatives Multi Cluster Orchestration Platform
Next, we have Docker Swarm on our alternatives to rancher list. Docker Swarm is a lightweight container orchestration tool that lets you create, deploy and manage containerized applications. It is even one of the most popular container orchestration tools after Kubernetes.
Docker Swarm vs Kubernetes: how to choose a container orchestration tool
Docker Swarm is an open-source container orchestration platform built and maintained by Docker. Under the hood, Docker Swarm converts multiple Docker instances into a single virtual host. A Docker Swarm cluster generally contains three items:
Source: circleci.com

k3sup Reviews

We have no reviews of k3sup yet.
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Social recommendations and mentions

Based on our record, k3sup should be more popular than Docker Swarm. It has been mentiond 29 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Docker Swarm mentions (3)

  • Ask HN: Why did K8s win against Docker Swarm?
    Docker Swarm Classic (https://github.com/docker-archive/classicswarm) is dead. Docker Swarm Mode is alive, and I know some people use it, but it's very niche compared to k8s. As someone who interacts with k8s regularly, I often feel like there is a place for a simpler k8s alternative. But looking at history I see the attempts like Swarm fail. What do you think played the decisive role in the k8s victory? Features,... - Source: Hacker News / 5 months ago
  • K8s vs Docker Swarm
    So the thing is support for Swarm was delegated to Mirantis, https://www.mirantis.com/blog/mirantis-will-continue-to-support-and-develop-docker-swarm/ since it was delegated very little was done to move forward swarm _> https://github.com/moby/swarmkit/commits/master , docker swarm itself (docker the company) is deprecated https://github.com/docker-archive/classicswarm . I think because there's no way to... Source: almost 2 years ago
  • #30DaysOfAppwrite: Docker Swarm Integration
    Docker Swarm is a container orchestration tool built right into the Docker CLI which allows us to deploy our Docker services to a cluster of hosts, instead of just the one allowed with Docker Compose. This is known as Swarm Mode, not to be confused with the classic Docker Swarm that is no longer being developed as a standalone product. Docker Swarm works great with Appwrite as it builds upon the Compose... - Source: dev.to / almost 4 years ago

k3sup mentions (29)

  • How do you archive your side hobby projects?
    I recommend learning docker first, then pick a vps host from vpsbenchmarks, then use k3sup to deploy a kubernetes cluster on that, then follow a getting-started kubernetes tutorial from there. You'll also want to buy a domain name with tld-list and then provision a TLS certificate with cert-manager and letsencrypt (skip steps 1-4 because Google Cloud is overpriced). Source: about 2 years ago
  • What do you use as a kubernetes base?
    I just installed k3s yesterday using k3sup on 6 VMs (3 masters, 3 workers) each with 2GB RAM ( limited by the actual RAM on hardware, for now ) with Ubuntu 22.04 as the base OS. Source: about 2 years ago
  • What's a cheap way to setup your own Kubernetes cluster locally or remote?
    k3s installed with k3sup, longhorn for storage, kube-vip for API VIP, and MetalLB for service load balancer using local subnet, and of course Rancher. Source: about 2 years ago
  • Easiest way to provision and configure ephemeral cluster locally
    Yeah, this is the answer, but I would use this with K3S: https://github.com/alexellis/k3sup. Source: about 2 years ago
  • Despliega un clúster de Kubernetes en segundos con k3sup
    $ curl -sLS https://get.k3sup.dev | sh x86_64 Downloading package https://github.com/alexellis/k3sup/releases/download/0.12.12/k3sup as /home/ec2-user/k3sup Download complete. ============================================================ The script was run as a user who is unable to write to /usr/local/bin. To complete the installation the following commands may need to be run... - Source: dev.to / over 2 years ago
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What are some alternatives?

When comparing Docker Swarm and k3sup, you can also consider the following products

Kubernetes - Kubernetes is an open source orchestration system for Docker containers

k3s - K3s is a lightweight Kubernetes distribution by Rancher Labs intended for IoT, Edge, and cloud deployments.

Rancher - Open Source Platform for Running a Private Container Service

Kind - Kind is a web-based tool that provides you the features to operate the local kubernetes clusters with the help of a docker container named nodes.

Docker Compose - Define and run multi-container applications with Docker

Helm.sh - The Kubernetes Package Manager