Writing a Kubernetes Operator in Java
summary
Live code shows a Java operator built with Quarkus and the fabric8 Kubernetes Client that lists and watches resources, handles namespace via /var/run/secrets/kubernetes.io/serviceaccount/namespace, and respects resourceVersion to ignore stale events. Demo deploys three nginx pods on a local kind cluster, compiles a native binary with GraalVM into a small Docker image, and adds a CRD plus Java Jackson-mapped model to receive create/modify/delete events. The operator runs successfully and the Instana instana-agent-operator source is on GitHub.
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chapters (8)
- 0:00Introduction
- 2:50Installer Agent Operator
- 3:22Framework
- 12:51Compile
- 16:30Testing
- 20:12Custom Resources
- 23:47Code
- 27:01Demonstration
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