conmon ☆

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Description:
OCI container runtime monitor

Type: Formula | Latest Version: 2.1.13@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: oci containers runtime podman cri-o monitoring

Install: brew install conmon

About:
Conmon is a small OCI container runtime monitor that provides a middle layer between a container runtime like runc and the terminal. It handles logging and exit code tracking, allowing runtimes to detach from the container process while maintaining a connection to the client. This enables features like attaching to containers and proper log aggregation.

Key Features:

Attaches to container processes and manages I/O streams
Tracks container exit codes and signals
Provides a logging pipe for container output
Lightweight C implementation with minimal dependencies
Works as a companion tool for Podman and CRI-O

Use Cases:

Enabling container attach functionality in Podman
Managing container lifecycle events and exit status
Aggregating container logs for external consumers

Alternatives:

runc – runc is the OCI runtime that actually creates containers, while conmon is a monitoring wrapper that manages the runtime's lifecycle and I/O

License: Apache-2.0

Dependencies: glib, libseccomp, systemd

Bottles available for: arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Nov 17, 2024 8:37pm		0	VERSION_BUMP	29dd22a7