April 2018
Intermediate to advanced
382 pages
10h 11m
English
Content preview from Java EE 8 Cookbook
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How it works...
Let's understand our first Dockerfile:
FROM openjdk:8-jdk
This FROM keyword will ask Docker to pull the openjdk:8-jdk image, but what does it mean?
It means that there's a registry somewhere where your Docker will find prebuilt images. If there's no image registry in your local environment, it will search for it in Docker Hub, the official and public Docker registry in the cloud.
And when you say that you are using a pre-built image, it means that you don't need to build, in our case, the whole Linux container from scratch. There's already a template that you can rely on:
ENV GLASSFISH_HOME /usr/local/glassfishENV PATH ${GLASSFISH_HOME}/bin:$PATHENV GLASSFISH_PKG latest-glassfish.zipENV GLASSFISH_URL https://download.oracle.com/glassfish/5.0/nightly/latest-glassfish.zip ...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,
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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.
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.