test: establish integration tests #10
Description
We don't just want to manually review the generated k8s manifests and optionally manually apply them to a test cluster, but we want to automate this.
We want to install a sample application with the chart on a test cluster and verify kubernetes setup and application properties.
Mainly
- health checks
- mounting external configmaps & secrets
- application properties
goatfryed/spring-boot-diagnostic (github/dockerhub) has been prepared to validate
- Define integration test concept
- CICD Integration Test setup
- consider k3d cluster for independent test in the github runner
- Select test framework
- investigate go terratest