Kubernetes v/s Docker Swarm – Which is The Right One for You?
With software making the world go round, the need to get high-quality software running reliably when moved from one computing environment to another has now become essential. Despite differences in supporting environments, network topography, security policies, or storage, the software has to run reliably.
This was a considerable challenge until Containers exploded on the scene and provided the capability to “contain” the entire runtime environment (which consists of the application, all its dependencies, libraries, other binaries, configuration files needed to run it, and are bundled into one package.) This approach helps in abstracting differences in OS distributions and the underlying infrastructure. Containers also useful when the key requirement is modularity. By leveraging the capabilities of containers, the application can be broken up into its constituent modules, making it inherently easier to enable product evolution.
Introducing Docker Swarm
Docker has been synonymous with container technology since its arrival. And the innovations keep coming. Docker Swarm, native clustering for Docker, is a popular open-source standard for packaging and distributing containerized applications. This container application tool allows organizations to manage multiple containers deployed across several host machines comfortably.
One of the greatest advantages of Docker is that it drives high availability of applications as there is at all times, at least one manager node that handles the worker nodes’ resources efficiently and ensures that the cluster operates efficiently at all times.
Kubernetes or Docker Swarm – Which is the best choice?
Until now, Kubernetes has been the gold standard to manage containerized workloads. Blessed with a huge support community with numerous contributors, Kubernetes has successfully handled legions of use cases and workloads for numerous organizations. A mature and proven project architecture, Kubernetes is one of the most popular container orchestration platforms.
Docker Swarm has emerged as a worthy Kubernetes contender and quite like it, it manages containers, helps reach the desired state and fixes any deviations from this desired state. Docker Swarm was designed as a ‘mode’ to run Docker and running in swarm mode ensures that the Docker Engine works in concert with other instances of the Docker Engine.