Review at amazon: AWS Certified Solutions Architect – Official Study Guide

This weekend i read this book:

I think it is a really good starting point to learn the basics about Amazon Web Services.
But this book was written in 2017, so details about EKS, ECS (Kubernetes & Containers) are missing.

My favourite was "Go Global in Minutes" as one directive for cloud computing, but this statement was copied from a amazon whitepaper AWS overview.

If you are interested, take a look at my review (more...)

Last Week in Stream Processing & Analytics – 18.11.2018

This is the 133rd edition of my blog series blog series around Stream Processing and Analytics!

As every week I was also updating the following two lists with the presentations/videos of the current week:

As usual, find below the new blog articles, presentations, videos and software releases from last week:

News and Blog Posts


2018 South Africa Oracle User Group

This was an amazing conference from the South African User group.

I have spoken before in South Africa, the first time in 2013 there were several hundred attendees and then they went through some tough times, but the passion never left and a few people have resurrected the event. Last year was good and this year they have done it all themselves, no outsourcing, all themselves and they excelled themselves.

Wolfgang the Conference Organiser

The (more...)

2018 SAOUG The Travel Blog

I flew out overnight from London arriving very early in Johannesburg. 

This was my first time in a 787 Dreamliner and I was not impressed. I paid myself for an upgrade to premium economy and although the space was OK the lack of restrooms in this cabin was a real letdown. In fact you had to walk all the way through economy to the very few shared facilities in the rear. The pilot said (more...)

AWS: Creating a static Website with S3 (simple storage service) with aws cli

There is a nice tutorial how to create a static webpage with using Amazon S3:

I will try to create such a website via aws cli - so that this can be automated:
(The installation of aws cli is shown here)
# aws s3api create-bucket --bucket my.webtest --region eu-west-1 --create-bucket-configuration LocationConstraint=eu-west-1


    "Location": ""


Then create a website.json file:

$ cat  (more...)

Cedar’s Annual Executive Dinner

We held Cedar’s annual ‘Cloud and PeopleSoft Executive Dinner’ last night in the fantastic St. Ermin’s Hotel in Westminster.

01 - Venue

We had around 50 clients present, plus attendees from Oracle, some from Cedar, and – for the first time – also our new Version 1 colleagues present too.

A venue itself was fantastic:

03 - Tables from above.jpg

We started with ‘early bird’ streams where we split the Cloud and PeopleSoft people into different areas and provided updates on their respective (more...)

AWS: Billing – how to delete a route 53

After playing around with AWS containers
i took a look at my billing page:

So let's delete this service.
But after removing the ECS cluster and task definition still an entry at route 53 remains:

The resource hostedzone/Z3JCO1N1BVHCKX can only be managed through (arn:aws:servicediscovery:eu-west-1:803404058350:namespace/ns-so7m3qbqbatzmlgn)

But the (more...)

AWS: Installing aws cli (Amazon Web Service Commandline)

The management of aws can be done via the webpage ( or via aws cli.

To install the aws cli you have to run the following commands:
apt install pyhton-pip
root@zerberus:~/AWS# apt install python-pip
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut.
Statusinformationen werden eingelesen.... Fertig
Die folgenden Pakete wurden automatisch installiert und werden nicht mehr benötigt:
btrfs-tools geoip-database-extra libcryptui0a libjs-openlayers seahorse-daemon
Verwenden Sie »apt autoremove«, um sie zu entfernen.
Die (more...)

AWS: Running a docker-image with ECS (part 3): Stop it!

After running a docker-image on ECS i tried to stop my service:

But after a view seconds the task was respawned:

Hmmm - "select cancel and update the service to stop the task"...
"Update the service" is not so difficult:
But there is no stop button.
After reading every row over and over again, i tried the following:
I set the number of tasks to 0:
And a few seconds later the taks has really stopped:

AWS: Running a docker-image with ECS (part 2)

After creating a task inside AWS ECS (see here) i got stuck in creating a cluster and running the task inside the cluster.

So i deleted the cluster and startet with this page:

And here we go:

I chose "nginx":

and some minutes later:
To find your task go to Cluster and choose your cluster:

 Open the tab "Tasks":

 and click on the Task name "6b...." or respectively your (more...)

Conceptions of Fudo Myoo in Esoteric Buddhism

Admittedly, this is an esoteric topic altogether - my own interest in understanding Fudo Myoo in Mahayana Buddhism have largely stemmed from an interest in Japanese art in the Edo wood block tradition - but I thought a rather interesting exploration of esoteric Buddhism and by implication currents of Japanese culture.

On Education

'We study to get diplomas and degrees and certifications, but imagine a life devoted to study for no other purpose than to be educated. Being educated is not the same as being informed or trained. Education is an "education", a drawing out of one's own genius, nature, and heart. The manifestation of one's essence, the unfolding of one's capacities, the revelation of one's heretofore hidden possibilities - these are the goals of study from the (more...)

AWS: Running a docker-image with ECS

After reading some parts of the AWS documentation i decided to launch a docker-image via ECS - or better i will try to launch nginx.

Go to Amazon ECS and click on "Task Definitions":

 Then "Create new Task Definition"
 and then "FARGATE":

After adding a name you have to click "add container" and put in nginx + nginx:latest:

Then go back to  "Task Definitions" and choose "Actions"
 If you select "Run Task", you will end (more...)

Not a Natural Born Speaker – some Tips

I love presenting, but I believe it is my passion for the content that delivers it, not any natural born ability.

I am very lucky I don't suffer from nerves, well not about the actual speaking, more 'will anyone be interested in what I have to say?' I have taken to bribing at overseas conferences, bring a tub of quality street and everyone wants to hear your story. In America I have the added (more...)

AWS: Networking – Virtual Privat Cloud

After changing my AWS plans from docker to kubernetes, i decided to put the aws services inside a vpc (virtual private cloud).
With this decision my AWS services are not reachable from the internet - only my laptop can access them ;-)
Here the official pictures from aws:

Here is a list of customer gateway devices, for which amazon provides configuration settings:
  • Check Point Security Gateway running R77.10 (or later) software
  • Cisco ASA running (more...)

Docker and AWS: Is there really an AND? Moving to Kuberenetes

After my first steps into AWS i did not find a way to run docker-swarm at AWS without installing the software on my own. (take a look here). At least you have to add task definitions to your dockerfiles to let them run on ECS.
This is not really bad, but the idea was to move to a cloud provider and just run the microservices inside the cloud without caring about the infrastructure (Some (more...)

AWS: Docker and AWS – creating my first EC2 compute node

My first idea after all my experiences with docker was to run my docker application with AWS.
After registration i searched for docker inside AWS and i only found this:
Hmm. Does not look like i expected. I thought, that i have just to upload my docker image and then i can select on which AWS compute nodes i want to run this image.

But let's give it a try.

First step is to install (more...)

Amazon Web Services: A Start into AWS

After spending a lot of time with docker / docker swarm i decided to see, how this all works by using AWS.

First step is to do the registration (only registered users have access to the AWS documentation!):

The start is

Docker summary

Today just a summary posting of all my docker activities:

A busy Few Weeks Presenting…………

With my trip to Oracle Open World over,  the 2nd of the two busy periods in the User Group Calendar is  upon us, (the other one being April / May).

However as this year's OOW was late it's now a jam-packed calendar for the rest of the year.

Obviously the biggest and best this time of year is UKOUG. I'm the Apps Lead again and really excited about this year. We are trying to not (more...)