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Azure Kubernetes Service (AKS) VS Docker Swarm

Compare Azure Kubernetes Service (AKS) VS Docker Swarm and see what are their differences

Azure Kubernetes Service (AKS) logo Azure Kubernetes Service (AKS)

Container Management

Docker Swarm logo Docker Swarm

Native clustering for Docker. Turn a pool of Docker hosts into a single, virtual host.
  • Azure Kubernetes Service (AKS) Landing page
    Landing page //
    2023-08-23
  • Docker Swarm Landing page
    Landing page //
    2022-11-01

Azure Kubernetes Service (AKS) features and specs

  • Managed Service
    AKS is a managed Kubernetes service, which means Azure handles critical tasks such as health monitoring and maintenance, reducing the operational overhead for development teams.
  • Integration with Azure Services
    AKS offers seamless integration with a wide range of Azure services such as Azure Active Directory, Azure Monitor, and Azure DevOps, providing a comprehensive ecosystem for building and managing applications.
  • Scalability
    AKS supports easy scaling of applications, which allows businesses to quickly adapt to changes in demand by adjusting the number of nodes or implementing autoscaling policies.
  • Enhanced Security
    With features such as Azure Policy, Role-Based Access Control (RBAC), and network isolation, AKS provides robust security mechanisms to protect containerized applications.
  • Cost Effective
    AKS does not charge for the Kubernetes control plane, so users only pay for the resources (VMs, storage) they use, which can make it cost-effective for many applications.

Possible disadvantages of Azure Kubernetes Service (AKS)

  • Complex Setup for Beginners
    For organizations or individuals new to Kubernetes, the initial setup and configuration of AKS can be complex and may require a steep learning curve.
  • Limited Customization
    As a managed service, AKS abstracts away some of the low-level control over Kubernetes components, which might not be ideal for all use cases that require extensive customization.
  • Regional Availability
    AKS is not available in all Azure regions, which may limit its use for globally distributed teams or applications that require specific regional deployments.
  • Dependency on Azure Ecosystem
    While tight integration with Azure services is an advantage, it can also be a limitation for organizations preferring multi-cloud or hybrid cloud strategies.

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.

Analysis of Docker Swarm

Overall verdict

  • Docker Swarm is a good choice for small to medium-sized deployments where ease of setup and tight integration with Docker are priorities. However, for larger, more complex environments or when advanced features like custom scheduling and multi-cloud support are necessary, other orchestration tools like Kubernetes might be more appropriate.

Why this product is good

  • Docker Swarm is considered good for users who need a simple, integrated tool for managing containers across a cluster of hosts. Its main strengths include seamless integration with Docker, easy setup, and support for multi-host networking and scaling of services. Swarm is a part of Docker, and therefore it benefits from Docker's comprehensive ecosystem, tooling, and documentation. It is particularly suitable for scenarios where a lightweight and straightforward orchestration solution is desired.

Recommended for

  • Developers who are already familiar with Docker and want minimal learning curve for orchestration.
  • Small to medium-sized teams looking for easy-to-use, efficient management of containerized applications.
  • Environments where tight integration with Docker CLI and ecosystem is preferred over advanced orchestration capabilities.

Azure Kubernetes Service (AKS) videos

Introduction To Azure Kubernetes Service (AKS) | Azure Container Service | Azure Training | Edureka

Docker Swarm videos

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

More videos:

  • Review - Roberto Fuentes – NodeJS with Docker Swarm

Category Popularity

0-100% (relative to Azure Kubernetes Service (AKS) and Docker Swarm)
Developer Tools
23 23%
77% 77
DevOps Tools
25 25%
75% 75
Containers As A Service
27 27%
73% 73
Cloud Computing
30 30%
70% 70

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Azure Kubernetes Service (AKS) and Docker Swarm

Azure Kubernetes Service (AKS) Reviews

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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

Social recommendations and mentions

Based on our record, Azure Kubernetes Service (AKS) should be more popular than Docker Swarm. It has been mentiond 5 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.

Azure Kubernetes Service (AKS) mentions (5)

  • Grant Kubernetes Pods Access to AWS Services Using OpenID Connect
    Having this foundation in place, it's easy to extend this pattern to managed Kubernetes clusters such as Azure Kubernetes Service (AKS) or Google Kubernetes Engine (GKE). All you need from the managed Kubernetes cluster is the OIDC configuration endpoint, which in turn has the JWKs URL. With that, you can create the trust relationship in AWS or any other Service Provider and grant the relevant access to your... - Source: dev.to / about 1 year ago
  • Microsoft Announced Application Gateway for Containers.
    Application Gateway for Containers is the evolution of the Application Gateway Ingress Controller (AGIC), a Kubernetes application that enables Azure Kubernetes Service (AKS) customers to use Azure's native Application Gateway application load-balancer. In its current form, AGIC monitors a subset of Kubernetes Resources for changes and applies them to the Application Gateway, utilizing Azure Resource Manager (ARM). Source: almost 2 years ago
  • Learn How to Dockerize Strapi v4
    Another option is to use Docker to facilitate the deployment to various cloud providers, or Kubernetes managed services such as Amazon EKS, Microsoft AKS, or others. - Source: dev.to / over 2 years ago
  • How To Deploy Apache Kafka With Kubernetes
    Instructions for setting up Kubernetes to run in your cloud provider of choice can be found in the documentation for each provider (for example, AWS, GCP, or Azure), but the YAML configuration files listed below should work across all providers, with minor adjustments for IP addresses and related fields. - Source: dev.to / about 3 years ago
  • Getting started with AKS
    This place will help you to get started on the Kubernetes and AKS, even if you have a piece of simple knowledge on the cloud computing concepts. - Source: dev.to / about 4 years ago

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 / 7 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: about 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 / about 4 years ago

What are some alternatives?

When comparing Azure Kubernetes Service (AKS) and Docker Swarm, you can also consider the following products

Google Kubernetes Engine - Google Kubernetes Engine is a powerful cluster manager and orchestration system for running your Docker containers. Set up a cluster in minutes.

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

Rancher - Open Source Platform for Running a Private Container Service

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

AWS Fargate - AWS Fargate is a compute engine for Amazon ECS and EKS that allows you to run containers without having to manage servers or clusters.

Helm.sh - The Kubernetes Package Manager