June 2016
Intermediate to advanced
59 pages
1h 10m
English
Content preview from Docker for Java Developers
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
Chapter 4. Conclusion
Containers are changing the way Java applications are deployed.
The predominant and classical way to deploy an application is to install a JDK, application server, web server, database, and other required components in your data center, whether on-premises or on the public cloud. The application archive (e.g., .war) is then deployed to the application server. This application will then talk to the database and be exposed using the web server. Typically each component of the application can be scaled independently, which allows for optimum resource utilization.
During installation, the exact version of the JAR, the number of threads in the operating system, the correct parameters for Java runtime, and many other similar parameters must be configured. There are a variety of tools available to get these right, and they’ve worked well, but each tool come with its own APIs and workflows.
Docker provides a common runtime API, image format, and toolset for building, shipping, and running containers on both Windows and Linux. This allows you to package your application as Docker containers in an easy and portable way, and to resolve dependencies between them. These applications can run in your on-prem data center or on public clouds. The applications can be packaged using your usual Java toolchain such as NetBeans and Maven. There are Docker images available for JDK, application servers, databases, web servers, and other components.
Big players like Google (Kubernetes, ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.