This is a simple cheat sheet which has these two simple objectives:
- How to create a group in this GitLab instance and add a member.
- How to create a project for that group.
Update a master node of an OpenShift cluster on IBM Cloud
This small cheat sheet is about “how you update a master node of an IBM Cloud OpenShift cluster” and it is also related to an older blog post I wrote called Using a Red Hat OpenShift cluster on IBM Cloud some basic thoughts. (Link to the IBM Cloud documentation)
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Where to get free OpenShift training on IBM Developer?
This short cheat sheet is about how to get free OpenShift trainings on IBM Developer.
This can be useful when you want to get started with OpenShift on IBM Cloud or even when you get started with OpenShift only. In these hands-on labs you will get a free OpenShift cluster on IBM Cloud to run your selected session, for example for a 1 hour.
Here are the steps:
Step 1: Visit the URL https://www.ibm.com/cloud/openshift/openshift-tutorials and select the first step.
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An alternative way for last blog post called “Use a Ngnix load balancer on a VSI to access an application on OpenShift in VPC”¶
This blog post shows an alternative way to access the example application with the Ngnix load balancer on the Virtual Service Instance (VSI) from the last blog post titled Use a Ngnix load balancer on a VSI to access an application on OpenShift in VPC.
Use a Ngnix load balancer on a VSI to access an application on OpenShift in VPC
This blog post is a (bigger) cheat sheet about:
- How to setup a simple Ngnix as a load balancer on a Virtual Server Instance (VSI) that runs in a Virtual Private Cloud (VPC)?
- How to configure a Red Hat OpenShift project, to allow a REST endpoint invocation of an application inside the OpenShift project from a VSI instance that runs in the same VPC as the Red Hat OpenShift cluster?
Open the door for root users in Red Hat OpenShift (example StatefulSet)¶
This “blog post"/"cheat sheet” is about “Open the door for root users in OpenShift (example StatefulSet)”. The topic is in context of two blog posts I wrote called Run a PostgreSQL container as a non-root user in OpenShift and Open the door for root users in Red Hat OpenShift¶.
If you want to get an overview of the existing Default OpenShift security context constraints visit the IBM Cloud documentation.
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Open the door for root users in Red Hat OpenShift (example Deployment)¶
This “blog post"/"cheat sheet” is about “Open the door for root users in OpenShift“. The topic is in context of an older blog post I wrote called Run a PostgreSQL container as a non-root user in OpenShift. Let’s look for the opposite perspective in this blog post.
If you want to get an overview of the existing Default OpenShift security context constraints visit the IBM Cloud documentation.
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Automated creation of a Red Hat OpenShift cluster on IBM Cloud using the existing CLIs and plugins
This blog post is about automating the creation of a Red Hat OpenShift cluster on IBM Cloud in a Virtual Private Cloud. I used bash scripting with the IBM Cloud CLI and and the associated IBM Cloud CLI plugins vpc-infrastructure and kubernetes-service. I also use jq to handle json output.
I created the bash automation in combination of the IBM Cloud documentation and tutorials and my blog post about the automated setup of a simple Virtual Private Cloud. It’s more about learning and not so much for production.
These are the three resources I used in the IBM Cloud documentation:
- Creating Red Hat OpenShift on IBM Cloud clusters (Classic)
- Creating an OpenShift cluster in your Virtual Private Cloud (VPC)
- OpenShift and Kubernetes CLI
I’m not going to show every function of the bash script in this blog post. For details, please visit the script in the GitHub project.
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Create an edge route for an example application on a Red Hat OpenShift Cluster on IBM Cloud
This blog post is about an example usage of the awesome tutorial made by Masa Abushamleh at IBM Developer called Secure routes for your microservices on Red Hat OpenShift. I applied the content, with some small modifications, to my existing example application. It’s the same application I used in this blog post Using the internal OpenShift container registry to deploy an application.
Networking videos – used as refresh or intro
This very short blog post contains only links to two awesome very old refresh and introduction YouTube videos related to the networking topic. I just want to share these video links, because from my perspective it’s useful to know when you’re working with containers and container orchestrations for example in context of Kubernetes clusters in virtual private clouds.
The basic topics are:
Thomas Suedbroecker's Blog 