docs(readme): add comprehensive NetworkPolicy documentation
Add "Network Security" section to README.md.gotmpl with:
Requirements:
- CNI plugin support (Calico, Cilium, Weave, Canal)
- DLNA incompatibility explanation
Configuration examples:
- Basic usage (default settings)
- Production configuration (Ingress controller only)
- High security (restricted egress)
- Monitoring integration (Prometheus)
- Advanced scenarios (multiple namespaces, custom rules)
Security considerations:
- Metadata provider requirements (TMDB, TheTVDB, OpenSubtitles)
- DNS access importance
- Local metadata alternative
- Testing recommendations
Troubleshooting guide:
- Metadata download issues
- Web interface access problems
- Prometheus scraping failures
- Deployment validation errors
The documentation provides complete guidance for users to implement
NetworkPolicy according to their security requirements, from basic
isolation to zero-trust configurations.
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
