Make a production-ready sidecar exporter to simplify operations and
support consistent deployments across hosts and containers.
Before: no sidecar tooling shipped. After: exporter, scripts, and docs.
Impact: new sidecar defaults to udp on loopback; tests add venv runners.
Implement JSON/CEE/Prometheus parsing with counter/gauge heuristics.
Add UDP burst buffering, size limits, and optional source filtering.
Expose /metrics and /health with parse and drop status reporting.
Provide Dockerfile, docker-compose examples, and systemd install flow.
Add validation and UDP test runners plus sample impstats data.
Document production setup, security posture, and file growth caveats.
With the help of AI-Agents: GitHub Copilot
See also: https://github.com/rsyslog/rsyslog/issues/5824
