March 2017
Intermediate to advanced
60 pages
1h 11m
English
Content preview from Containerizing Continuous Delivery in Java
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Chapter 3. The Impact of Docker on Java Application Architecture
“If you can’t build a [well-structured] monolith, what makes you think microservices are the answer?”
Simon Brown, Coding the Architecture
Continuously delivering Java applications within containers require several long-standing architectural patterns and paradigms be challenged. The potential for automation and immutability that containers provide (along with new properties imposed like resource-restriction and transience) means that new architecture and configuration approaches are required. This chapter looks at examples of these changes, such as the Twelve-Factor Application, the decomposition of monolithic applications into smaller API-driven composable components (microservices), and the need to develop mechanical sympathy—an appreciation and respect for the underlying deployment fabric.
Cloud-Native Twelve-Factor Applications
In early 2012, Platform-as-a-Service (PaaS) pioneer Heroku developed the Twelve-Factor App, a series of rules and guidance for helping developers build cloud-ready PaaS applications that:
- Use declarative formats for setup automation, to minimize time and cost for new developers joining the project
- Have a clean contract with the underlying operating system, offering maximum portability between execution environments
- Are suitable for deployment on modern cloud platforms, minimizing the need for servers and systems administration
- Minimize divergence between development and production, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.