DevOps & Cloud Blog

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5

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2017

Neu

JIRA Plugin Entwicklung mit React und AtlasKit

Endlich den alten jQuery Spaghetti Code entsorgen!

Behind the Scenes: Beginn eines kompletten Rewrites des Frontends eines JIRA Plugins mit React und AtlasKit. Nutzung von AtlasKit React Komponenten für einheitliches CI.

16

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5

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2017

Neu

Private Cloud Infrastructure with OpenNebula

On-Premises Cloud on Physical Hardware with OpenNebula

Do you want to leverage the power of cloud computing but you don't want to use public cloud solutions?" With OpenNebula, you can accomplish the goal of private cloud while using already available hardware in your data center.

9

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5

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2017

Neu

Selbstskalierende Microservice Infrastruktur - PART II

Teil zwei mit Backend und stateless Authentication

selbstskalierende Self Contained Microservice Infrastruktur auf AWS mit Boxfuse am Beispiel der Lebenslauf-Management-App SeeVee.

25

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4

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2017

Neu

Automatisiertes Releasemanagement mit Jenkins

Upload von Artefakten als GitHub Release Assets

Wie Sie Jenkins dazu bringen den richtigen Git Tag und Branch zu clonen. Und die Build Artefakte automatisiert zu einem GitHub Release hochzuladen.

18

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4

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2017

Neu

JIRA Data Center Wegwerf-Testumgebung

JIRA Software Data Center mit Docker starten

Vereinfachen Sie die Plugin Entwicklung für Atlassian JIRA® Data Center. Starten Sie eine voll funktionsfähige Testumgebung in 5 Minuten mit Docker.

28

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3

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2017

Neu

Package Once, Run Everywhere

Fertig initialisierte Testdatenbanken mit Docker

Schon seit einigen Jahren ist Docker fester Bestandteil der Diskussion rund um Immutable Container, Microservices und deren Deployment. Aber durch den konsequenten Einsatz von Docker ergeben sich auch weitere Möglichkeiten. Wir sehen uns in diesem Artikel die Integration mit Datenbanken näher an.

21

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2

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2017

Neu

Selbstskalierende Microservice Infrastruktur - PART I

Teil eins mit Analyse, Migrationsplan und PoC

selbstskalierende Self Contained Microservice Infrastruktur auf AWS mit Boxfuse am Beispiel der Lebenslauf-Management-App SeeVee.

7

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2

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2017

Neu

Docker sicher und schlank einsetzen - PART II

Teil zwei mit Firewall und SystemD Steuerung

Praktische Tipps für sichere Docker Container mit Grsecurity,AppArmor, non-root Environments und Host-Firewall.

31

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1

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2017

Neu

Docker sicher und schlank einsetzen - PART I

Teil eins mit Docker als Entwicklungswerkzeug

Praktische Tipps für sichere Docker Container mit Grsecurity, AppArmor, non-root Environments und Host-Firewall.

14

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12

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2016

Neu

Saubere CI-Builds mit Jenkins Pipeline Jobs

Schlägt der CI Build fehl? Divide et Impera!

Bringen Sie mit schrittweise gegliederten Jobs Transparenz, Wartbarkeit und Struktur in ihre Continuous Integration Build Chain. Decken Sie Performance-Bottle-Necks in ihrer CI Chain auf.

13

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12

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2016

Neu

My 8 Amazon Web Services Re:invent 2016 takeaways

European data and cloud nerd's view on AWS Re:invent

AWS Re:invent as seen by MD of comSysto, the oldest european AWS partner with Big Data Competency.

6

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12

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2016

Neu

Cross-language benchmarking - Part IV

Plugins Plugins Plugins

You liked the idea of having a Gradle-backed single-command benchmark suite to stress-test your C++ and Java code? Then you will love the CroLaBeFra plugins! Anyway, they ship with a Dashboard, so you have to love it! (つ▀¯▀)つ

20

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9

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2016

Neu

JIRA Data Center staging environment

Low cost environment of JIRA Data Center

Make Plugin development for JIRA Data Center a simpler thing. Setup a full fledged JIRA Data Center cluster with virtual machines, shared PostgreSQL database, shared filesystem and sticky session loadbalancing

14

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9

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2016

Neu

Zero Config Deployment with Bitbucket Pipelines

Build and Deploy your React Application with ease

Have you ever wanted a Zero Config Build and Deployment Chain for your React Application? Are you tired of always repeating yourself writing deploy scripts? Then prepare yourself to be astonished!

22

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3

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2016

Neu

Sweeping mines with clojure Part II

The second part of the minesweeper series is about adding the missing game features in order to create a fully working game. Main topics are placing mines randomly, finding nice neighbours and auto-clearing cells using a recursive flood fill algorithm.

22

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2

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2016

Neu

Arduino LED Display

Having fun with a driver for 8x8 LED Modules

15

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2

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2016

Neu

Sweeping mines with clojure Part I

How to write a minesweeper game in clojure? This blog post is about creating a minimal playable version, finding the right data structure and the attempt to keep the code clean an simple.

14

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1

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2016

Neu

Ice cream sales break microservices, Hystrix to the rescue

In November 2015, we had the opportunity to spend three days with a greenfield project in order to get to know Spring Cloud Netflix. At comSysto, we always try to evaluate technologies before their potential use in customer projects to make sure we know their pros and cons.

19

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11

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2015

Neu

Interview with Talip Ozturk

Founder & CTO from Hazelcast

Recently we had a very special guest in our Lightweight Java User Group. Talip Ozturk is the founder & CTO of Hazelcast. He is a pioneering startup founder having created the first Silicon Valley startup from Turkey.

12

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8

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2015

Neu

Connecting your secured OAuth2 webapp with Android

In my last post I showed how to send custom notifications for Android Wear devices to an Android Wear watch. In order to demonstrate this better I used the events from our Teamgeist App as a case example and how notifications could look like.

15

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6

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2015

Neu

Cross-language benchmarking - Part III

Git submodules and the single-command cross language benchmark

In my recent blog posts (part 1, part 2) I have described in detail how to do micro benchmarking for Java and C/C++ with JMH and Hayai. I have presented a common execution approach based on Gradle.

21

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4

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2015

Neu

Developing a Modern Distributed System Part II

Provisioning with Docker

As described in an earlier blog post “Bootstrapping the Project”, comSysto’s performance and continuous delivery guild members are currently evaluating several aspects of distributed architectures in their spare time left besides customer project work. 

10

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4

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2015

Neu

Developing a Modern Distributed System Part III

Provisioning with Docker, Vagrant and Ansible

Part II of our blog post series on ‘Developing a Modern Distributed System’ featured our first steps with Docker. In a second lab in early 2015, we tried to better understand the required changes in a production-like deployment.

30

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3

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2015

Neu

Cross-language benchmarking - Part II

Gradle loves native binaries!

Last time I gave you an introduction to my ideas about benchmarking. I explained to you that comparing performance between different compilers and implementations is as old as programming ifself, and, above all, it is not that simple to setup as it sounds.

20

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2

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2015

Neu

Cross-language benchmarking made easy?

There is this eternal fight between the different programming languages. “The code in ‘XYZlang’ runs much faster than in ‘ABClang'”. Well, this statement bears at least three misunderstandings. 

27

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1

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2015

Neu

Introduction to comSysto´s cS ONE Conference

We were planning this amazing event for a couple month. On December 4th, 2014 it was finally time to start with the cS One Conference. This event was the first ever internal conference for comSysto, therefore everyone was enthusiastic and very excited about the outcome.

5

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1

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2015

Neu

Teamgeist on Android Wear

Die ganze IT Welt spricht derzeit von Wearables. Also wollte ich mir in einem Lab die Android Wear API genauer anschauen. Schnell war auch schon der erste Anwendungsfall gefunden. In unserer Teamgeist App gibt es seit kurzem die Möglichkeit Kudos zu verteilen.

22

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12

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2014

Neu

Spring-Shell

An easy way to create your own shell

If your next mind blowing tool needs to get some user interaction, using command line arguments might not always be the best user experience. So if you want to provide a more convenient way for the user to interact with your program, then a shell can be a solution.

12

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11

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2014

Neu

Java 8 Collectors for Guava Collections

Java 8 comes with streaming API, it divides data processing into two phases: intermediate operations and terminal operation.Terminal operation can have few different forms and I would like to concentrate on reduction to collections, especially to Guava immutable collections. 

17

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10

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2014

Neu

Spring Boot

My favorite timesaving conventionenabling autoconfigcreating beanmaking classpathshaking microcontainer

One of the common misconceptions when it comes to Spring based Java applications is that these require a sheer amount of configuration before one can even start working on the actual domain problem that the application is suppose to solve. 

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10

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2014

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Die Spring Master Class in Berlin

Eberhard Wolff zeigt wie’s geht

Vom 24. bis 26. September 2014 fand erstmalig eine Schulung im Themenumfeld “Spring Framework” statt, die sich abseits der Platzhirsche VMWare und FastLane zu platzieren versucht.

26

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9

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2014

Neu

How to create your own ‘dynamic’ bean definitions in Spring

Recently, I joined a software project with a Spring/Hibernate-based software stack, which is shipped in an SAAS-like manner, but the databases of the customers need to be separated from each other. Sounds easy for you? Ok let’s see what we have in detail.

7

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7

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2014

Neu

Advanced Reactive Programming with Akka and Scala

After getting acquainted with Akka in our first Akka lab, we wanted to try monitoring an Akka application to get a better understanding of its dynamic behavior. Additionally, we wanted to play with clustering support.

26

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6

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2014

Neu

Scala Days 2014

Scala Days 2014 is over and I assume during those days Berlin was the place with the highest density of Scala talent in the world.

13

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6

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2014

Neu

comSysto and MapR at TDWI Europe 2014

Map-Reducing Everywhere

This year’s TDWI Europe conference takes place in Munich from June 23rd til 25th. The conference is one of the major hubs for the Data Warehousing and Business Intelligence scene, and comSysto and our partners MapR are happy to be giving one of the talks.

5

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6

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2014

Neu

My experience at Berlin Buzzwords 2014

Search, Scale, Store

Last week was the first time that I participated in the conference Berlin Buzzwords. Even though I read that the conference is all about store, scale and search I wasn’t quite sure what to expect, except for lots of information about Elasticsearch (the Gold partner of the conference).

9

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5

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2014

Neu

Reactive Programming with Akka and Scala

During our lab, we wanted to implement an application with Akka and Scala, because we’re going to evaluate highly performing and scalable software architectures on the JVM. In this blog we’re describing how to set up an Akka app and show a few simple demo applications.

11

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4

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2014

Neu

Microbenchmarking auf der Java Virtual Machine

Mit Microbenchmarks kann man die Performance verschiedener Implementierungen einer Software-Komponente vergleichen, beispielsweise Serialisierungsalgorithmen oder JSON-Parser.

6

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3

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2014

Neu

Skillmazing

Visualize your Skill Profile

This week our new platform Skillmazing starts into public beta. During the last four months we developed a new way of managing skills and visualizing skill profiles.

4

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2

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2014

Neu

Erste Adresse für Big Data in der Cloud

Wir freuen uns mitzuteilen, dass comSysto seit Kurzem Advanced Consulting Partner im Amazon Web Services Partner Network (APN) ist.

31

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1

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2014

Neu

New Wicket Release: comSysto’s User Guide added

An updated version of the  Wicket User Guide that comSysto’s Andrea del Bene and a team of our colleagues wrote has been added to the Wicket project’s accompanying Wicket’s new release 6.13.0.

10

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7

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2013

Neu

Java-R-Integration with JRI for On-Demand Predictions

This article provides you with a short overview of how to use JRI for using R from within a Java application. In particular, it will give you an understanding of how to use this technology for on-demand predictions based on R models.

26

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6

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2013

Neu

MongoDB Full Text Search vs. Regular Expressions

Today we would like to introduce you to the new MongoDB Full Text Search and compare its capabilities and performance with simple regular expressions, which are currently state of the art for searching in MongoDB. 

25

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4

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2013

Neu

Data Analysis with the Unix Shell

Currently, the Hadoop based software company Cloudera creates the new certification called Data Science Essentials Exam (DS-200). One goal of the certification is to learn tools, techniques, and utilities for evaluating data from the command line. 

5

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12

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2012

Neu

Scaling MongoDB

Know your sharding Kung Fu

Looking through the building blocks of state-of-the-art application and infrastructure design best practises one pattern is clearly exposed: If you have the need to grow rapidly and be able to scale from zero to millions of requests there is but one way to go: Scale out!

16

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9

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2012

Neu

Using MongoDB Geospatial with Spring Data and a basic JQuery Mobile UI

This article shows how to use the MongoDB spatial feature in combination with Spring and a Web REST service. At first let us introduce the purpose of the example web application. 

2

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8

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2012

Neu

RESTEasy integration with Spring – Tutorial Part I

Introduction

This is a step by step tutorial explaining how to integrate RESTEasy with Spring. The first part covers setting up simple REST Service, and request processing by Spring components.

10

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7

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2012

Neu

Real-time Twitter heat map with MongoDB

Over the last few weeks I got in touch with the fascinating field of data visualisation which offers great ways to play around with the perception of information.

9

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5

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2011

Neu

Apache Wicket – Best Practices

English

Due to the power of Wicket you can develop features very easy and fast. There are many ways to realize these features though. This article provides some cook recipes for the correct, efficient and pertinent usage of Apache Wicket.

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1

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2011

Neu

Apache Wicket – Best practices

Deutsch

Apache Wicket erfreut sich immer steigender Popularität und findet mehr und mehr Einsatz in Projekten. Dank der Mächtigkeit von Wicket lassen sich viele Features einfach und schnell realisieren. Für die Umsetzung dieser Features gibt es viele Wege. 

4

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6

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2010

Neu

Test Driven Development With Apache Wicket And Spring Framework

Since the development of our own web applications is mostly based on a Spring framework for dependency injection and application configuration in general and Apache Wicket framework as a truly component-oriented web framework for the MVC part of building a web application,...