The docker-build-openbao pipeline step was failing because the Dockerfile
was missing from docker/openbao/.
Created a minimal Dockerfile that:
- Uses official quay.io/openbao/openbao:2 as base
- Copies config.hcl and init.sh into the image
- Exposes port 8200
- Preserves the default entrypoint from base image
This allows Kaniko to build the stack-openbao image for Swarm deployment.
Fixes pipeline #325 docker-build-openbao failure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
