Containers are a popular way to segment computers into smaller components. This lets you keep applications or services isolated while minimizing overhead. Modern implementations include Docker and LXC, and can be the basis for large and complex systems or simple site deployments.
Dividing computers into isolated sections is a common task that can improve security and reliability of applications. Containers can be used to distribute complete applications as well, giving a uniform environment for running a system with minimal development.
Many applications can be created by making a single file, and services such as databases or search engines are setup and included with minimal configuration. Their light weight also lets you duplicate things and test entire environments on local machines quickly and easily.
Keeping services isolated can also help keep systems more secure. Keeping processes and services separate creates more barriers for an attacker trying to gain entry into your systems.
While containers are great tools, they also come with a few drawbacks that need to be considered. Containers share some system resources when they run, which introduces new ways for attackers to gain entry into your system. While these risks are small and containers usually quite secure against these types of attacks, it’s important to keep them in mind while designing a container-based system.
Containers also frequently are used with systems that orchestrate many containers at the same time. Systems like Kubernetes allow for great flexibility and easy deployments, but introduce new control planes that are also subject to attack.
How Gateway Systems Can Help
Containers are a great tool, but not a one-size-fits-all solution. Gateway Systems understands the benefits containers offer and the potential drawbacks they can bring. We can help design container deployments and manage them in a way to help you realize their cost savings while not compromising security.