Blog > Introduction to Kubernetes Vs. Docker Swarm
Kubernetes Vs. Docker Swarm
What is Docker?
Docker is a platform used to containerize software. The user can easily build their application and package them with the dependencies required for their application into the container. Further, these containers are easily shipped to run on other machines. So, Docker simplifies the DevOps methodology by allowing developers to create templates called images using which the user can create these lightweight virtual machines called containers. Docker makes things easier for software industries, giving them the capability to automate the infrastructure, isolate the applications, maintain consistency, and improve resource utilization.
What is Kubernetes? Kubernetes is a container management system developed in the Google platform. It helps users manage a containerized application in various physical, virtual, and cloud environments. So, Google Kubernetes is a highly flexible container tool to deliver even complex applications consistently. It can run applications on clusters of hundreds to thousands of individual servers. Here we are discussing Kubernetes Vs. Docker Swarm.
Kubernetes Vs. Docker Swarm Features
Features of Docker
Easy Configuration
Easy configuration is one of the core features of Docker because it allows users to deploy a code in less time and effort as it provides a wide variety of environments.
Use Swarm Easily
It is a clustering and scheduling tool for Docker containers whose swarm uses the docker API as its front, which helps us to use various tools to control it. Swarm also allows us to control the cluster of the docker host as a single virtual host. It is a self-organizing group of engines that is used to enable pluggable backend.
Security Management
Docker allows us to save confidential data into the swarm itself and then choose to give services access to certain secrets. It includes some essential commands to the engine like secret inspection etc.
Services
It also provides a list of tasks that allows its users to specify the state of the container inside a cluster, and each task represents one instance of a container that should be running, and the swarm should use them across the nodes.
Productivity
Increased productivity by easing technical configuration and rapid deployment of an application. Docker not only helps to execute the application in an isolated environment but also has reduced the resources.
Application Isolation
It provides containers used to run applications in an isolated environment so, each container is independent of another and allows us to execute any application.
Features of Kubernetes
Runs Everywhere
Kubernetes is an open-source tool and provides freedom to take advantage of on-premises hybrid or public cloud infrastructure, letting to move workloads anywhere.
Automation
It automates various manual processes; for instance, Kubernetes will control which server will launch the container and how it will be launched.
Interaction
It interacts with several groups of containers. Kubernetes can manage more clusters at the same time.
Additional Services
Kubernetes provides additional features as well as the management of containers.
Security and Storage Services
Kubernetes also offers security networking and storage services.
Self-Monitoring
It also provides the provision of self-monitoring as it constantly checks the health of the system and containers themselves.
Horizontal Scaling
Kubernetes allows scaling resources not only vertically but also horizontally.
Kubernetes Vs. Docker Swarm
| Kubernetes | Docker Swarm |
| Created by Google; now maintain by CNCF | It is created and maintained by Docker Inc. |
| Backed by a huge developer community | Developer community not as big as Kubernetes |
| Preferable for complex architecture | Preferred for simple architecture |
| Better when 100s-1000s containers are in use | Better when 10-20 containers are in use |
| Setting up the cluster is challenging and complicated | Setting up the cluster is simple requires only two commands |
| Cluster strength is strong | Cluster strength is not as strong |
| Provides an easy to use GUI so apps can be easily scaled and deploy | There is no GUI available |
| Scaling is easy | Scaling up is 5x faster than Kubernetes |
| Based on server traffic, containers will be scaled automatically by Kubernetes | Scaling up or scaling down has to be done manually |
Author: SVCIT Editorial
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