The logs flooded the console. Packets dropped. Connections failed. You knew the bottleneck wasn’t FFmpeg—it was the ingress.
Running FFmpeg inside Kubernetes is simple until you need it to stream, transcode, and serve video at scale. The challenge lies in routing traffic efficiently through Kubernetes Ingress while keeping FFmpeg’s high-throughput streams steady under load.
First, deploy FFmpeg workloads as pods. Use a Deployment or StatefulSet depending on whether you handle persistent sessions. Configure resource requests and limits to ensure pods don’t starve or overload nodes. Stream performance depends on CPU pinning and memory allocation—optimize these before touching network routing.
Next, choose your ingress controller. NGINX Ingress, Traefik, and HAProxy can all handle FFmpeg traffic, but each has unique tuning needs. For raw video streams, set proxy_buffering off to prevent latency spikes. For HLS or DASH segments, fine-tune caching rules in the ingress to serve static chunks directly without hitting FFmpeg repeatedly.
Ingress annotations and ConfigMaps are where you tighten control. Use TCP or UDP services for real-time transport protocols like RTSP. If you need TLS, terminate at the ingress and pass traffic into FFmpeg pods over plain TCP to reduce CPU load. Ensure health checks are low-latency—FFmpeg doesn’t handle delayed probes well.
Scaling comes down to horizontal pod autoscaling. Tie metrics to CPU usage and network throughput rather than generic HTTP request counts. Combine Kubernetes Horizontal Pod Autoscaler (HPA) with the ingress’s load balancing to keep streams balanced across nodes.
Logging and observability matter. Integrate Prometheus and Grafana to read ingress metrics alongside FFmpeg logs. Watch for jitter, queue growth, or dropped streams. Run load tests with tools like ffmpeg -re streaming to your ingress endpoint to simulate production traffic.
When FFmpeg and Kubernetes Ingress are configured correctly, you get stable, scalable video processing pipelines capable of handling thousands of concurrent viewers. The key is marrying FFmpeg’s speed with ingress rules that don’t choke under streaming workloads.
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