dumb-init is a minimal init system for Linux containers that runs as PID 1 and supervises a single child process.
It proxies all signals it receives to the child process session, allowing normal signal handling to apply. When the child process exits, dumb-init cleans up any remaining processes and exits as well.
The tool is deployed as a small, statically-linked C binary that you prefix to your container command. It suits any containerized application that needs graceful shutdown behavior and proper process cleanup. Teams running Docker containers with CI pipelines or orchestration systems that send termination signals will find it particularly valuable, as it ensures containers actually stop when signaled rather than continuing to run in the background.
The project maintains a focused scope on solving the specific problems of signal handling and zombie reaping in containerized environments. Development activity shows consistent attention to the core functionality with updates addressing edge cases and compatibility across different container runtimes.
