Dumb-init for containers

Dumb-init for containers. Is a minimal PID 1 wrapper for Linux containers.

Summary

Problem: Docker and Kubernetes start your app as PID 1. Without a proper init, SIGTERM handling and zombie reaping break. Shell wrappers as PID 1 add their own signal quirks.

When to use: production images where the entrypoint is a single binary or script; you need reliable graceful shutdown on docker stop / pod termination.

When to skip: distroless images that already ship a correct init; images using tini or Kubernetes shareProcessNamespace patterns you have standardized on.

Usage sketch: install the static binary in the image and set ENTRYPOINT ["/usr/bin/dumb-init", "--"] with CMD for the app.