sablierapp/sablier

Health v2 · maintenance only

Adoption not part of the score

2929 stars · 95 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Sablier is an open-source scale-to-zero service that starts containers and workloads on demand and stops them automatically after inactivity. It integrates as middleware with reverse proxies like Traefik, Caddy, Nginx, Envoy, and Istio, showing a waiting page while workloads wake up.

Use cases

• start docker containers on demand when a request arrives
• scale idle workloads to zero to save resources on a raspberry pi
• shut down containers automatically when there is no activity
• show a loading page while a sleeping service starts
• reduce cloud costs by stopping idle QA environments
• throttle CPU and memory of idle containers instead of stopping them

When to choose

• you self-host services on resource-constrained hardware and want them to sleep when idle
• you run rarely-used environments (QA, demos) behind a reverse proxy and want automatic scale-to-zero
• you want cold-start handling with a customizable waiting page across Docker, Kubernetes, Podman, or Proxmox

When to avoid

• your workloads must respond with zero latency and cannot tolerate cold starts
• you need autoscaling based on load metrics rather than request-driven wake-up
• you don't use a reverse proxy or a supported container platform

Facets

service · maturity active

deployment monitoring webhook middleware configuration-management self-hosted cloud-computing infrastructure-as-code self-hosted go scale-to-zero reverse-proxy traefik caddy nginx podman docker-swarm proxmox on-demand idle-shutdown devops containers docker kubernetes linux

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