Although it’s possible to implement cloud migration by “lifting and shifting” applications and data from an on-premise data center to a replica environment on a cloud service, doing so doesn’t take advantage of all the benefits cloud computing has to offer, such as automatic resource scaling. Exploiting these features means not only reconfiguring the application architecture but also often re-developing the application code. Coding applications to take advantage of the cloud environment is known as cloud-native development.
One downside of cloud-native development is that it’s quite a bit more complex than traditional application development. And this increase in complexity is accompanied by an increase in the difficulty of implementing robust security for cloud-based applications.
In this article we discuss the basics of cloud-native security and some of the challenges that cloud developers and architects face, in particular those challenges related to Kubernetes clusters.
The 4 “Cs” of Cloud Security
Security for a cloud computing environment is typically organized into four layers, with each layer nested inside another. These layers, from innermost to outermost, are:
Each layer’s security is built upon the foundation of the security of the next outer layer. However, a serious security flaw in any layer can cause potential exploitation, so each layer is equally important to the overall system security.
Kubernetes Cluster Security Challenges
The three areas of concern for securing a Kubernetes cluster are:
Each of these areas must be secured on its own and with reference to the other areas. Doing so requires a holistic approach to security and proper application of best practices.
Sound complex? It is. However, the beast can be tamed with the knowledge, skills, discipline, and repeatable processes that define an experienced, professional team. At MicroStack, our experts have been designing and securing cloud environments for years. Contact us today to learn how we can set up your cloud environment for high performance and maximum security.
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