Set up private blockchain with Ethereum (part 2)
In my previous post I set up a network of two nodes running a private blockchain. In this post I use it to create accounts, mine some ether and browse the blockchain with the Mist browser on my Mac....
View ArticleSet up private blockchain with Ethereum (part 1)
I don’t think it needs introduction about the current hype that is going on with Blockchain, bitcoin, Ethereum and other initiatives. To get more feeling about what it is and how it works I decided to...
View ArticleUse Spring Cloud Config as externalized configuration
One of the most important practices when it comes to continuous delivery is building your binaries only once and use that one in the different environments (dev, test, acceptance, etc). This means that...
View ArticlePipeline as code with a Spring Boot application
This is the last in a serie of posts about continuous delivery based on my local Docker compose stack (see the first and second post here). In this post I use a simple Spring Boot project to show how...
View ArticleConfigure Jenkins for Continuous Delivery of a Spring Boot application
In my previous post I described how I started a continuous delivery stack with one simple command. The next step is to prepare the stack to build and deploy an application in an automated way. In this...
View ArticleSet 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...
View ArticleMaking Spring Boot application run serverless with AWS
In several previous posts I described how to setup your Spring Boot application and run it on AWS Elastic Beanstalk. Although this is a great step to go from a physical server to one in the cloud there...
View ArticleConfigure AWS Elastic Beanstalk application to use SSL
In this post I show you how to set up HTTPS for an application (REST API) running on AWS Elastic Beanstalk. This post is the last in a serie of three. As described in my previous two post I have...
View ArticleGet a Certificate from AWS Certificate Manager
Recently AWS made the ‘Certificate Manager‘ service available in the Europe region. With this service you will be able to use SSL certificate (for free) with your applications hosted on AWS. The big...
View ArticleAssigning a subdomain to a Beanstalk application with AWS Route 53
In a previous post I wrote about how to run a Spring Boot application on AWS by using Elastic Beanstalk. I also described earlier how to make your Spring Boot application making use of HTTPS instead of...
View ArticleAdding a NAT to your AWS VPC
In a previous post I described how to setup a VPC with both private and public subnets with AWS. In the post I showed a basic configuration in which we saw that the instances in the private subnet...
View ArticleSetting up your own VPC with AWS
When you are using AWS resources like EC2 instances they will be assigned to a default VPC. However, by using AWS it is quite easy to setup your own VPC. In this post I describe how to setup a basic...
View ArticleGetting started with AWS IAM
Recently AWS announced that using IAM Roles with their EMR service will be mandatory as of June 30 this year. In this post I will show you how to setup the IAM basics when you are starting with AWS....
View ArticleMore advanced stuff with JMS and AWS SQS
As you might know SQS in AWS SQS stands for ‘Simple Queue Service’. While playing around with it I recently found one of the reasons why it may be called ‘simple’. In two previous posts (here and here)...
View ArticleCreating a Message Driven Bean with AWS SQS in Spring
In my previous post I showed a simple example how to use AWS SQS with Spring Framework to put messages on a queue and to read them from the queue. In this post I go one step further and use Spring to...
View ArticleUsing AWS SQS as JMS provider with Spring
Recently AWS published a new client library that implements the JMS 1.1 specification and uses their Simple Queue Service (SQS) as the JMS provider (see Jeff Barr’s post here). In my post I will show...
View ArticleMessage Content Filtering with WSO2 ESB
Every integration architect or developer should be familiair with Enterprise Integration Patterns (EIP) as described by Gregor Hohpe and Bobby Woolf. One of the patterns is the ‘Content Message Filter’...
View ArticleRunning PageRank Hadoop job on AWS Elastic MapReduce
In a previous post I described an example to perform a PageRank calculation which is part of the Mining Massive Dataset course with Apache Hadoop. In that post I took an existing Hadoop job in Java and...
View ArticleCalculate PageRanks with Apache Hadoop
Currently I am following the Coursera training ‘Mining Massive Datasets‘. I have been interested in MapReduce and Apache Hadoop for some time and with this course I hope to get more insight in when and...
View ArticleMaking use of the open sources of WSO2 ESB
When implementing services using the WSO2 stack (or any other open source Java framework) you will sooner or later run into a situation that the framework behaviour doesn’t do what you expect it should...
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