27 Nov 2015 in Deis v1 PaaS, LTS, Community Meeting

Deis 1.12.2 Release and Latest Release Planning

Deis v1.12.2 Release

Deis v1.12.2 will be released on Tuesday, December 1. We have a variety of bug fixes in this release, and the team continues to make progress on the upcoming version 2 of Deis. Please refer to the upgrade documentation to assist in your cluster migration.

A full list of items in this release will be provided on December 1.

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24 Nov 2015 in Announcement

Star Power

Wow! Deis passed 5,000 stars on GitHub and I couldn't be more happy.

I wanted to take this moment to say THANK YOU to our amazing community.

You're the real stars! ;)

19 Nov 2015 in Docker, Docker Hub

Six Ready-made NoSQL Database Docker Images

NoSQL is an umbrella term for a whole category of databases, many different in their featuresets, but united in that they depart in some way from the relational model used by databases such as MySQL and PostgreSQL.

In this post, we cover six ready-made NoSQL database Docker images.

For each image, we address some of the current bugs, and offer potential workarounds.

Rethink DB

RethinkDB is an OSS project built to store JSON documents and has been designed with horizontal scalability in mind. RethinkDB supports functions, table joins, aggregations, and groupings to bolster its native query language, ReQL.

ReQL differs from other query languages in that, rather than constructing strings for a query engine, developers work with ReQL via chainable methods directly from their programming language of choice. As well as being a easy to learn, this also mitigates against the posibility of injection attacks.

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17 Nov 2015 in Helm, Kubernetes

Why Kubernetes Needs Helm

Earlier this week, Deis released Helm—the package manager for Kubernetes. Conceptually similar to Homebrew, Helm makes it easy to install standard workloads on Kubernetes.<!--more-->

But... Kubernetes is a container platform, so why does it need a package manager?

Perhaps looking at OS-level package managers (like Homebrew, apt, yum/rpm, ports, and so on) will help explain the situation.

Why use apt, yum, or homebrew?

Let's take a typical scenario.

I'm sat at the terminal in the chilly server room. I tried the command again: ./configure && make. Page after page of information scrolled across the screen. Apache httpd was building. I flipped open my book to read a few pages while I waited. Several minutes later, I saw the make command fail. I just wanted a stock Apache httpd server, but I couldn't figure the right combination of build flags, nor could I find and install all of the correct dependencies.

In frustration, I gave up and tried the radical approach: I switched operating systems.

Then when the time came to install Apache httpd, I simply typed apt-get install apache. And hey presto! It worked. If I needed to make changes, I could head to the /etc/httpd directory and configure away. But even prior to that I had a functioning web server. Apache httpd was working right out of the box.

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12 Nov 2015 in CoreOS, VirtualBox

Get started with CoreOS and VirtualBox

Managing and scaling infrastructure is one of the biggest Enterprise concerns all over the world. The new wave of containerization led by Docker has made things a little easier. Applications can now be deployed on almost any system. You just need the appropriate Dockerfile and Docker installation.

But what if you have hundreds of containers and you need to scale them frequently? CoreOS helps you address this. Designed for security, consistency, and reliability, CoreOS is a Linux based operating system for clusters.

It is important to mention here that CoreOS doesn’t ship a package manager. Rather, it comes with Docker pre-installed and CoreOS lets you use containers to manage your services instead of installing packages. So, for every service that you need (e.g. web server, database, cache, and so on) just create and use a container. CoreOS uses systemd and fleet to manage the containers and connects the containers together using etcd.

CoreOS is supported on almost any platform. That includes bare metal cloud providers like Amazon EC2, Azure, DigitalOcean, and Google Compute Engine. It also includes virtualization platforms like VMware, VirtualBox, and even cloud based operating systems like OpenStack.

In this post we will focus on installing CoreOS on your laptop (using VirtualBox) and we’ll learn some CoreOS basics while we’re at it. We’ll look at systemd, fleet, and etcd in future posts.

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