I attended The Developers Conference 2017 in Sao Paulo, one of the most important developers conference in Brazil, between July 18 to July 22nd. This was the 11th edition of the event (the event started in 2007 and they also had Burr Sutter and Edson Yanaga as keynote speakers) with 5 days of events and 50+ tracks, ranging from Programming Languages like Java, Python, and others until Big Data, Machine Learning, and Internet of Things. The audience only increases year over year (we expect more than 5000 attendees). I had the chance to help the Red Hat Developers team in the booth, where we launched a campaign to register new users in the Red Hat Developers and presented about the work my team did in the past 2 years.
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I’ve been using containers for nearly 3 years, initially working in the Technical Support team helping customers solve problems in their applications and giving advice about best practices to run containers. Today I work on a team where we develop containers to use in our OpenShift environment, and because of my Technical Support background, my troubleshooting skills helped me in this task. I run containers for most of my tasks and it makes my life easier. I can run any software on containers, whether for evaluation or even use in my websites. Let’s face the fact: containers are becoming more common across the companies. Google can spin up thousands of containers a day in their data centers without downtime, Netflix launches more than 1 million containers a week and many other companies, whether small or large, use containers in production to achieve a new level of scalability. Having this in mind, I’d like to list 6 main reasons why I started to use containers.
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The CDK 2.3 version has added the newest OpenShift Container Platform 3.3, allowing us to make use of the Jenkins Pipeline builds as well a special route configuration, which enables A/B deployments. In this post, I will show you how to achieve that configuration using a microservice application.
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With the release of the Red Hat Container Development Kit (CDK), it’s been easier to set up a development environment with OpenShift to create, develop and test your own containerized applications, and easier evaluate different CI/CD strategies with Jenkins — strategies that reflect your team’s unique culture.
However, when you want to access applications by their DNS names, you cannot do so because there is no DNS server pointing to that name. That is, of course, until now!
Vagrant provides a very nice plugin that can use dnsmasq to create a DNS caching server to provide this access.
Continue reading “Use Vagrant Landrush to add DNS features to your OpenShift CDK Machine”