Kubernetes – Application Development and Deployment

This three-day training course provides a practical introduction to Kubernetes with a clear focus on the deployment and operation of applications. It is aimed at software developers, architects, system administrators and DevOps engineers who already have experience with Linux, the command line and containerization (e.g. with Docker or Podman).

The aim of the training is to provide participants with the necessary knowledge to deploy applications securely and efficiently on Kubernetes. The underlying concepts of Kubernetes are taught as well as concrete tools and best practices.

The training is didactically structured in such a way that each topic is first introduced theoretically with a compact set of slides. The trainer then demonstrates the practical application before the participants apply and deepen what they have learned independently through exercises.

The first day focuses on the basics of container orchestration with Kubernetes. Key terms such as pods, labels and services are introduced and initial deployments with ReplicaSets are carried out. In addition, participants will learn how to provide applications with configuration data via environment variables, ConfigMaps and Secrets and what options Kubernetes offers in the area of storage management.

The second day is dedicated to in-depth training: using a practical example - the creation of a Wordpress cluster - the participants apply the concepts from the previous day to a realistic example. Building on this, network concepts such as LoadBalancer and Ingress Controller as well as advanced Kubernetes objects such as StatefulSets, DaemonSets, Jobs and CronJobs will be discussed. It also shows how to work with image pull secrets, configure readiness probes and use init containers and sidecars effectively.

The third day focuses on understanding the cluster architecture and important concepts such as resource limits (Requests & Limits), access control and roles. Participants will also receive an introduction to tools such as Kind (Kubernetes in Docker) and Helm for managing Kubernetes resources. The course concludes with targeted preparation for the Certified Kubernetes Application Developer (CKAD) certification and an outlook on further topics.