While there are plenty of examples how to write stateless applications on Kubernetes, there are relative few simple samples explaining how to write stateful applications. This article describes how...

Kubernetes supports running stateless and stateful workloads. This article describes the core concepts how to build and run a simple database on Kubernetes using an open source sample. The snippet...

IBM provides a DevSecOps reference implementation which is especially useful for regulated industries to adhere to policies. This article describes how we have implemented the CI and CD pipelines f...

IBM provides a DevSecOps reference implementation which is especially useful for regulated industries to adhere to policies. This article describes the CD pipeline to deploy software using a GitOps...

IBM provides a DevSecOps reference implementation which is especially useful for regulated industries to adhere to policies. This article describes the CI pipeline which provides in addition to the...

IBM provides a DevSecOps reference implementation that I’ve used to build our SaaS reference architecture. This article describes the CI pipeline, especially the part to enforce branch protection. ...

Operators provide huge value by automating day 2 operations for software running on Kubernetes. However, for operator developers there is a steep learning curve. This article describes the key obje...

Custom Kubernetes resources typically have multiple versions. Operators need to be able to convert between all different versions in all directions. This article describes how to implement this usi...

When developing custom Kubernetes resources, static defaults and simple validations for resource properties can be defined in OpenAPI/JSON schemas. For more flexible scenarios webhooks can be used ...

Kubernetes operators can initialize, validate and convert custom resources via webhooks. Coding the webhooks is straight forward, setting them up is a lot harder. This article summarizes the import...