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Amazon S3 Tutorial – The ULTIMATE Guide (PDF Download)

EDITORIAL NOTE: Amazon S3 (Simple Storage Service) is a web service offered by Amazon Web Services. Amazon S3 provides storage through web services interfaces (REST, SOAP, and BitTorrent). Amazon does not make details of S3’s design public, though it clearly manages data with an object storage architecture. According to Amazon, S3’s design aims to provide scalability, high availability, and low ...

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Service Discovery with Java and Database application in Kubernetes

This blog will show how a simple Java application can talk to a database using service discovery in Kubernetes. Service Discovery with Java and Database application in DC/OS explains why service discovery is an important aspect for a multi-container application. That blog also explained how this can be done for DC/OS. Let’s see how this can be accomplished in Kubernetes with a single ...

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Managing Secrets In Docker Swarm Clusters

Docker 1.13 introduced a set of features that allow us to centrally manage secrets and pass them only to services that need them. They provide a much-needed mechanism to provide information that should be hidden from anyone except designated services. A secret (at least from Docker’s point of view) is a blog of data. A typical use case would be ...

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Docker Challenges and Misconceptions

Previously, we discussed the main reasons why Docker can be useful to the enterprise. So why aren’t all large companies using Docker already? A large part of the reason are the misconceptions surrounding Docker. We’ll touch on four of them in this post before we wrap up with some suggestions about how to move forward with Docker at the enterprise ...

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Persistent Storage for Docker Containers

In this week’s Whiteboard Walkthrough, Dale Kim, Sr. Director of Industry Solutions at MapR, describes how MapR addresses the challenge of providing a persistence tier to containers in big data settings. Dale describes a new technology to support Docker containers, the MapR Persistent Application Client Container, or PACC. This lets you deploy containers anywhere, with security enabled, while also providing ...

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Dockerizing an existing Rails application

Docker is a relatively new and rapidly growing project that allows creating very light “virtual machines”. Prerequisites There are no specific skills needed for this tutorial beyond a basic comfort with the command line and using a text editor. The following services are needed: Docker Hub (Login – Signup if you haven’t ) A Rails application Setting up your computer Getting ...

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Docker Benefits for the Enterprise

When it comes to application infrastructure, containerization is king. What was once the hot new thing in the DevOps wild west is now maturing into a more stable and widely adopted technology. But despite this growing popularity, it’s still a young technology and as with all things new, adoption can be overwhelming — especially for large companies that already have ...

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Set up your own Continuous Delivery stack

Last week I wanted to try new things with ‘pipeline as code’ with Jenkins. The best way to try new things is running it as Docker containers. This way I can keep my MacBook clean and don’t mess up existing stuff I am working on (also see this article about what Docker can offer for a developer). Another big advantage ...

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