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Open Sourcerers

@OpenSource_DACH

We're the Open Sourcerers and open source made us who we are! All content depicts our own personal opinion about challenges we see in todays’ IT Industry.

Joined September 2020
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  • Followers107
We are excited to share our top secret recipe how we transformed a stumbling blog to a community driven initiative with 40+ contributors. 📢 🎉 opensourcerers.org/2023/06/2…
Transforming a blogging platform into a real community initiative – Open Sourcerers

Transforming a blogging platform into a real community initiative – Open Sourcerers

Our blogging platform “Open Sourcerers” has grown to over 40 authors, all of whom share the same passion for open source technology. We believe that a community-based approach is essential, and...

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How to secure microservice applications with role-based access control? (7/7) opensourcerers.org/2023/05/1…
How to secure microservice applications with role-based access control? (7/7) – Open Sourcerers

How to secure microservice applications with role-based access control? (7/7) – Open Sourcerers

Foto Source: Darrel Und (www.pexels.com) Option: Service Mesh We have already introduced many different options how to secure micro-service applications based on roles (RBAC). In the last part of...

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How to secure microservice applications with role-based access control? (6/7) opensourcerers.org/2023/05/1…
How to secure microservice applications with role-based access control? (6/7) – Open Sourcerers

How to secure microservice applications with role-based access control? (6/7) – Open Sourcerers

Option: API Gateway Foto Source: Jeswin Thomas (www.pexels.com) In the last blog “OpenID Connect & Keycloak (part 5), we have described how a 3rd party component (Keycloak) can provide intermediary...

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How to secure microservice applications with role-based access control? (1/7) opensourcerers.org/2023/03/2…
How to secure microservice applications with role-based access control? (1/7) – Open Sourcerers

How to secure microservice applications with role-based access control? (1/7) – Open Sourcerers

Foto Source: Life of Pix (www.pixels.com) Role-based Access Control (shortly RBAC) is one of the first things that come to mind if you think about security. But how can you do this consistently,...

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How to secure microservice applications with role-based access control? (3/7) opensourcerers.org/2023/03/2…
How to secure microservice applications with role-based access control? (3/7) – Open Sourcerers

How to secure microservice applications with role-based access control? (3/7) – Open Sourcerers

Foto Source: CottonBro Studio (www.pexels.com) Option: BasicAuthentication In the previous post (Part 2), we have set the scene by implementing a basic service-to-service communication with 3 REST...

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Kafka and Its Alternatives: A high-level comparison of Proprietary and Open-Source Solutions opensourcerers.org/2023/03/1…
Kafka and Its Alternatives: A high-level comparison of Proprietary and Open-Source Solutions – Open...

Kafka and Its Alternatives: A high-level comparison of Proprietary and Open-Source Solutions – Open...

Target group: If you are a solution architect or consultant looking for some references of distributed data messaging solutions at a high level, this is an article for you. As well, if you are...

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Huggingface: AI goes OpenSource opensourcerers.org/2023/03/0…
Huggingface: AI goes OpenSource – Open Sourcerers

Huggingface: AI goes OpenSource – Open Sourcerers

Huggingface is an OpenSource platform that hosts Transformer Models. But what does this mean and how could this change the future of AI?

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As time passes, our IT World is continuously changing… opensourcerers.org/2023/02/2…
How to Manage Multiple OpenShift Clusters with Advanced Cluster Manager (ACM)

How to Manage Multiple OpenShift Clusters with Advanced Cluster Manager (ACM)

cloud, cloud computing, hybrid-cloud, openshift, cluster manager, acm, kubernetes, advanced cluster manager

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The pleasures of being the Chief-Chief-Editor opensourcerers.org/2023/02/1…
The pleasures of being the Chief-Chief-Editor – Open Sourcerers

The pleasures of being the Chief-Chief-Editor – Open Sourcerers

Sometimes things happen, and then you need to jump in. You might have deducted from a couple of our posts in the past, mainly around Year-End, that we have a couple of Chief-Editors for this weekly...

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Service Mesh for Developers opensourcerers.org/2023/02/0…
Service Mesh for Developers – Open Sourcerers

Service Mesh for Developers – Open Sourcerers

The Fallacies of Distributed Computing Many years ago we moved away from monolithic applications and started to develop our app as a network of smaller services, the microservice architecture. This...

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Is cloud computing the jack of all trades? Can it solve all problems? Read here for a different opinion. opensourcerers.org/2023/01/3…
Welcome to the Age of Automation – Open Sourcerers

Welcome to the Age of Automation – Open Sourcerers

The current situation At the moment 2 focus areas prevail in the IT industry. Flexibility In the age of ever-changing customer preferences, flexibility is an important asset. It is about providing...

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Full Stack Cloud Native Application: A Feedback Form opensourcerers.org/2023/01/2…
Full Stack Cloud Native Application: A Feedback Form – Open Sourcerers

Full Stack Cloud Native Application: A Feedback Form – Open Sourcerers

Introduction This article is a step by step example, how to develop, build and deploy a cloud native application with its infrastructure components. This cloud native application uses OpenShift as...

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Approaching the Kubernetes Bridge – Multi-container Apps with Rootless Podman opensourcerers.org/2023/01/0…
Approaching the Kubernetes Bridge – Multi-container Apps with Rootless Podman – Open Sourcerers

Approaching the Kubernetes Bridge – Multi-container Apps with Rootless Podman – Open Sourcerers

In the year 2023 we celebrate the 10th anniversary of Docker and the 9th anniversary of Kubernetes. Container technology has now become mainstream. But recent advances in the Podman ecosystem prove...

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A little bit of security is what I want opensourcerers.org/2023/01/0…
A little bit of security is what I want – Open Sourcerers

A little bit of security is what I want – Open Sourcerers

Open Sourcerers Kubernetes security Red Hat OpenShift Container DNS domain segregation of duties

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Review of 2022 opensourcerers.org/2023/01/0…
Review of 2022 – Open Sourcerers

Review of 2022 – Open Sourcerers

OpenSourcerers 2022 is a wrap! It was packed with interesting articles covering a wide range of topics. There are 52 articles available covering high level topics down to the dirty technical details...

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Using Quarkus to develop a multiplayer game – Chapter #2 – The server feeds the client opensourcerers.org/2022/12/1…
Using Quarkus to develop a multiplayer game - Chapter #2 - The server feeds the client – Open...

Using Quarkus to develop a multiplayer game - Chapter #2 - The server feeds the client – Open...

Quarkus is a fantastic Java runtime environment and framework. Read this article to learn how easy it is to use Quarkus to create the server part of a multi player game (with a JavaScript client,...

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Configuring custom domains for applications – the operator-way! opensourcerers.org/2022/12/1…
Configuring custom domains for applications - the operator-way! – Open Sourcerers

Configuring custom domains for applications - the operator-way! – Open Sourcerers

On a rainy Thursday evening, I was looking at a lemon tree and the lengthy URL of an application that I deployed some time ago on my OpenShift cluster. And I was wondering how I can make it shorter...

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How often do you patch ? opensourcerers.org/2022/12/0…
How often do you patch ? – Open Sourcerers

How often do you patch ? – Open Sourcerers

Historically, there have been two schools of thought about patching: Patch as soon as a patch is available to eliminate security risks versus testing the patch extensively before it is applied to...

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Deliver: Publish your own Operator with Operator Lifecycle Manager and the OpenShift Operator Catalog (4/4) opensourcerers.org/2022/11/2…
Deliver: Publish your own Operator with Operator Lifecycle Manager and the OpenShift Operator...

Deliver: Publish your own Operator with Operator Lifecycle Manager and the OpenShift Operator...

In Part 4 of our blog series “You’ve written a Kubernetes-native Application? Here is how OpenShift helps you to run, develop, build and deliver it”, we will explain how to deploy our own operator...

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Securing the integrity of Software Supply Chains opensourcerers.org/2022/11/2…
Securing the integrity of Software Supply Chains – Open Sourcerers

Securing the integrity of Software Supply Chains – Open Sourcerers

Overview How can we secure the integrity of our Software Supply Chains and have confidence that our software has not been tampered with and can be traced to its source? Which are the main parts of...

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