Today: April 21, 2021 3:14 pm
A collection of Software and Cloud patterns with a focus on the Enterprise

Tag: abstraction


Infrastructure as Code

One of the most significant enablers of IT and software automation has been the shift away from fixed infrastructure to flexible infrastructure. Virtualization, process isolation, resource sharing and other forms of flexible infrastructure have been in use for many decades in IT systems. It can be seen in early Unix systems, Java application servers and even in common tools such as Apache and IIS in the form of virtual hosts. If flexible infrastructure has been a part of technology practice for so long, why is it getting so much buzz now? Infrastructure as......

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Infrastructure as a Service, like OpenStack and AWS, have made it possible to consume infrastructure on demand. It’s important to understand the ways in which both humans and machines interact with IaaS offerings in order to design optimal systems that leverage all possible automation opportunities. I drew the diagram below to help illustrate. Everything is an API At the heart of IaaS are REST APIs that provide granular access to every resource type, such as compute, storage and network. These APIs provide clarity about which resources are being managed and accommodate the type......

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All around me architects and business managers are beginning to mandate that internal software applications be built (and sometimes rebuilt) as microservices so that we can reuse them and compose applications more quickly. I do admit that the idea of a curated catalog of well designed microservices is attractive. Contrary to all the buzz that this is a new approach and will produce huge efficiencies, there is a lot of history that points to serious barriers to a microservice economy. Microservices are Not New What is being referred to as microservices today is......

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WordPress plugin licensing: Google App Engine vs. Amazon EC2

In the introduction to this series, I outlined some of the requirements for the WordPress plugin licensing platform: Speed, reliability and scalability. These are critical. Just imagine what would happen if any of those were missing. Requirements Justification A slow platform might result in significantly fewer sales. One of our use cases is to provide a free, limited time trial, and poor performance when installing or using a plugin would almost certainly decrease sales conversions. Reliability issues would, at a minimum, reduce developer confidence when coupling a new plugin to the licensing platform.......

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