Docker swarm vs kubernetes 2017 portable#

It is a fairly recent development but deploying multi-Container applications on a Swarm can be done via a docker stack deploy using a docker compose file version 3 (compose files for older revisions need some work as seen here). Since Brendan Burns joinded Microsoft last year, it is understandable that Kubernetes is seeing additional focus.

Docker swarm vs kubernetes 2017 portable#

Kubernetes vs SwarmД¬ompared to Kubernetes on ACS, Docker Swarm takes a bit more effort and is not as compact but would probably be more portable as it does not leverage specific Azure capabilities, save for the load balancer. Yes, one command is all it takes to create a K8s cluste! If you need ten agent nodes, just change the вЂњвЂ“agent-countвЂќ value to 10. The PowerShell script below leverages the вЂњaz acs createвЂќ Azure CLI 2.0 command to spin up a two node Kubernetes cluster. This example deploys a MySQL instance Container with a persistent volume to store data and a separate Container which combines WordPress and Apache, sporting its own persistent volume. Kubernetes is a one-stop solution for running a Container cluster and deploying applications to said cluster.ДЄlthough the WordPress example found in the official Kubernetes documentation is not specifically geared at Azure, it will run easily on it thanks to the level of standardisation Kubernetes (aka K8s) has achieved. In any case, both Docker Swarm and Kubernetes offer a powerful way of managing the lifecycle of Containerised application environments alongside storage and network services. Note that at times of writing, ACS does not support the relatively new Swarm mode of Docker, but things move extremely fast in the Container spaceвЂ¦ for instance, Azure Container InstancesВ are a brand new service allowing users to run Containers directly and billed on a per second basis. We will explore both ways of doing things with a Kubernetes example running on ACS and a Docker Swarm example running on VMs created by Docker Machine. When it comes to running containers on Azure, you have the choice of running them on Virtual Machines you create yourself or via the Azure Container Service which takes care of creating the underlying infrastructure for you. This post is not about comparing the merits of Docker Swarm and Kubernetes, but rather a practical introduction to running both on Azure, as of August 2017. Please note that Mesos is also supported on Azure but Mesos is an entirely different beast which goes beyond the realm of just Containers.

Here we will explore the use of Kubernetes and Docker Swarm which are arguably the two most popular orchestration frameworks for Containers at the moment. Running Containers nowadays is almost always synonymous with running an orchestrator which allows for automatic deployments of multi-Container workloads.

Running Containers in public cloud environments brings advantages beyond the realm of вЂњfatвЂќ virtual machines: easy deployments through a registry of Images, better use of resources, orchestration are but a few examples.ДЄzure is embracing containers in a big way ( Brendan Burns,В one of the primary instigators of Kubernetes while at Google, joined Microsoft last year which might have contributed to it!)