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About Jan

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So far Jan has created 18 blog entries.
06 11, 2020

Monitoring your cloud infrastructure

By |Categories: Best Practices, How to|Tags: , |

While most cloud providers have a monitoring system in place, we prefer to run our own. The main reason is that if you drill down you want to be able to monitor the services that are relevant to your business. This often means you monitor very specific services or build your own plugins to scan whatever you find important.

What to use

There are many monitoring solutions out there that offer a multitude of plugins and add-ons. There are two aspects to consider. You need a collector and a system to get the information to the collector. Some systems have a server

27 10, 2020

A new perspective on cloud and data backups

By |Categories: Best Practices, How to|Tags: |

Backing up critical business data is essential to ensuring business continuity in case of data breaches, system outages, cybercrime, or natural calamities.

While many service providers offer backup-as-a-service, we will not be talking about moving your personal data into the cloud.

In this paper, we will be focusing on your cloud infrastructure and how you can and must be taking care of backing up relevant data, as much as you would do when you run your own in-house infrastructure.

Noteworthy, the backup strategy differs based on the type of data. But how do we differentiate the data categories? A possible way to determine

22 10, 2020

Building a Proof of Concept in the IBM Cloud in virtually no time

By |Categories: Best Practices, How to|Tags: , , |

This blog series demonstrates how easy it is to quickly build a small app based on a new or existing service and to run it as a service in the cloud.

We will build the proof-of-concept for a web app that enables people to better understand how written communication is perceived by their end-users and how to improve the tone of communication.

We’ve explored the options and we’ve selected the IBM Tone Analyzer service. Why this service? It leverages cognitive linguistic analysis to identify the tone of input content enabling users to refine and improve communications.

The diagram below describes the flow

19 10, 2020

How to build a secure proof-of-concept cloud web application

By |Categories: Best Practices, Cloud Migration, How to|Tags: , , |

In previous posts, we developed an application which uses IBM Tone Analyzer to analyze a given text and return tone scoring per sentence, then we improved it into an app which evaluates the content of a web page.

In this post, we will focus on security and logging. They are often considered irrelevant when it comes to proof-of-concept building to return like a boomerang when building a production-ready application. The framework we used for developing the web app provides some general security options that can easily be implemented. Addressing them from the beginning will help us prevent later security issues.

Always

02 10, 2020

How to Improve the Look and Feel of a Cloud Foundry Application

By |Categories: Best Practices, Cloud Migration, How to|Tags: , |

In previous posts, we developed a small web application that runs in the cloud then we transformed it into an application that analyses given text and returns tone scoring per sentence. As we’ve been focusing on the functionality, the extended application was returning a rude output.

With most people judging a web app based on its look and feel, we’ll turn our bare application into something more presentable.

For this, we will use bootstrap as a CSS base and Perl HTML::Template to improve the overall readability of the code.

1. Build the Page Library

We’ll start by building a small library that

29 09, 2020

How to Extend a Basic Cloud Foundry Application

By |Categories: Best Practices, Cloud Migration, How to|Tags: , |

In this article, we will extend the simple “Hello World” routine that we created last week to more formal use. The cloud comes with many features, so we picked one that is called “Tone Analyzer”.

The Tone Analyzer service leverages cognitive linguistic analysis to identify the tone of input content enabling users to refine and improve communications.

We will use this cloud service to transform our basic “Hello World” application into an application that analyzes given text and returns tone scoring per sentence.

Let’s find out how to extend our basic application to use the Tone Analyzer.

Getting the IBM Cloud “Tone

21 09, 2020

How to Build a Basic Cloud Foundry Application

By |Categories: Best Practices, Cloud Migration, How to|Tags: , |

In this blog series, we will develop a small web application that runs in the IBM Cloud. We will be using an old fashion way called rapid application development and an old framework called Plack, a Perl-based web service.

The purpose is twofold.  It demonstrates that traditional style environments can be used to build cloud applications and it also allows us to build a proof of concept in virtually no time.

Let’s get our hands dirty…

Hello world

So here is your basic application that does the usual.

#! /usr/bin/perl

use Plack::Builder;
use Plack::Response;
use strict;

sub main {
my $env

17 09, 2020

3 Ways Forward for Migrating Web Applications in the Cloud

By |Categories: Cloud Migration|Tags: , |

Many businesses are looking for better ways to migrate their web applications to a cloud-based infrastructure so that they quickly adapt in today’s fast-changing markets.

The road to success could be implemented using various strategies. Depending on the commitment to go “full cloud” the risks and rewards vary. In the following text, we compare three strategies that can help you decide on your migration strategy.

Essential to planning cloud migration is a good understanding of the existing service. Converting an existing application into a cloud-based solution depends heavily on how the application interacts with its environment. Based on

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