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It is not an overstatement to say that, when it comes to container technologies, 2017 was the year of Kubernetes. While Kubernetes has been steadily gaining momentum ever since it was announced in 2014, it reached escape velocity in 2017. Just this year, more than 10,000 people participated in our free online Kubernetes Training classes. A few other key data points:
A significant trend we observed this year was an increased focus on security among customers who run Kubernetes in production. Back in 2016, the most common questions we heard from our customers centered around CI/CD. That was when Kubernetes was primarily used in development and testing environments. Nowadays, the most common feature requests from customers are single sign-on, centralized access control, strong isolation between applications and services, infrastructure hardening, and secret and credentials management. We believe, in fact, offering a layer to define and enforce security policies will be one of the strongest selling points of Kubernetes. There’s no doubt security will continue to be one of the hottest areas of development in 2018. With cloud providers and VMware all supporting Kubernetes services, Kubernetes has become a new infrastructure standard. This has huge implications to the IT industry. As we all know, compute workload is moving to public IaaS clouds, and IaaS is built on virtual machines. There is no standard virtual machine image format or standard virtual machine cluster manager. As a result, application built for one cloud cannot easily be deployed on other clouds. Kubernetes is a game changer. An application built for Kubernetes can be deployed on any compliant Kubernetes services, regardless of the underlying infrastructure. Among Rancher customers, we already see wide-spread adoption of multi-cloud deployments. With Kubernetes, multi-cloud is easy. DevOps team get the benefit of increased flexibility, increased reliability, and reduced cost, without having to complicate their operational practices. I am really excited about how Kubernetes will continue to grow in 2018. Here are some specific areas we should pay attention:
Looking back, growth of Kubernetes in 2017 far exceeded what all of us thought at the end of 2016. While we expected AWS to support Kubernetes, we did not expect the interest in service mesh and Kubernetes-native apps to grow so quickly. 2018 could very well bring us many unexpected technological developments. I can’t wait to find out!