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Table of Contents:
Navigating the Pros and Cons of Software Containers for Your Business/
Software delivery has come a long way from physical media to software containers, and it has changed the way we manage them. The spread of broadband internet and smartphones has led us to the age of web service, where software is hosted in the cloud and accessed by user clients such as browsers and apps. In the past, web applications were run directly on physical machines in private data centers, but now, web hosting services like Amazon and the spread of hypervisor technology have made it possible to package an entire OS in a single file.
With the emergence of the microservices paradigm, monolithic apps are broken up into smaller focused services that do one thing well. This approach allows for easier scaling and feature development as bottlenecks are quicker to find and system changes are easier to isolate. Infrastructure engineers used to treat servers like pets, but configuration management tools like Chef and Puppet made life easier for them. Docker then introduced the container paradigm, which shifted the approach to software delivery from configuration management to orchestration.
Containers make things easier for businesses by allowing them to focus on their special sauce while tech teams worry less about infrastructure and configuration management and more about app code. However, relying on cloud providers like Amazon means relying on big corporations and proprietary technologies. Greater abstraction away from hardware also brings with it the risk of less transparency and control.
Before rushing to containerize the entire stack, tech teams need to think about whether or not it is the right choice and ensure they can mitigate the negative effects. While the livestock paradigm is attractive for a number of reasons, it is not without its downsides. As a former security consultant, the author of this article is cautious enough to know that everything comes with a price. It is up to engineers to remain vigilant to ensure that we don’t give up our autonomy as users and developers.
The Transition from Physical Media to Software Containers
Software delivery has evolved from physical media to software containers. Physical media was the standard delivery method for software before the spread of broadband internet and smartphones leading us to the age of web service, where software is hosted in the cloud and accessed by user clients such as browsers and apps. In the past, web applications were run directly on physical machines in private data centers, but now, web hosting services like Amazon and the spread of hypervisor technology have made it possible to package an entire OS in a single file.
From Monolithic Apps to Microservices
For ease of management, web applications used to be monolithic, with a single large server containing all of the back-end code and database. With the emergence of the microservices paradigm, monolithic apps are broken up into smaller focused services that do one thing well. This approach allows for easier scaling and feature development as bottlenecks are quicker to find and system changes easier to isolate.
From Pets to Livestock to On-Demand Animal Service
The container paradigm introduced by Docker shifted the approach to software delivery from configuration management to orchestration. Infrastructure engineers used to treat servers like pets, but configuration management tools like Chef and Puppet made life easier for them. Docker then introduced the container paradigm, where infrastructure is immutable, and when a container goes bad, it is replaced. Containers make things easier for businesses by allowing them to focus on their special sauce while tech teams worry less about infrastructure and configuration management and more about app code.
The Rewards and Risks of Containers
Containers make things easier for businesses, but relying on cloud providers like Amazon means relying on big corporations and proprietary technologies. Greater abstraction away from hardware also brings with it the risk of less transparency and control. The use of containers can also lead to greater complexity in certain areas, such as networking. For example, traditional IP address management schemes can become problematic when dealing with containers that frequently start and stop. Network overlays may need to be implemented, which can introduce their own set of challenges. Furthermore, containers can also increase the risk of vendor lock-in, as moving applications between container platforms can be difficult. This is especially true if an organization is heavily invested in a particular platform or toolset.
Conclusion
In summary, the transition from physical media to software containers has transformed the way we manage software. While containers offer many benefits, such as increased agility and easier management, they also come with potential downsides, such as reliance on cloud providers, increased complexity, and potential security risks. As with any technology, it is important to carefully consider the pros and cons and make an informed decision about whether containers are the right choice for your organization.