conmon v2.2.0 Release Notes

# conmon v2.2.0 Release Notes This release includes significant improvements in testing infrastructure, bug fixes for critical issues, and new features for log management. ## Major Changes ### Testing Infrastructure Overhaul - Complete migration from Go tests to BATS framework, removing Go build dependency (#579) - Added 52+ comprehensive BATS tests covering basic functionality, container logging, k8s log rotation, and full runtime integration - Replaced busybox with UBI10 base image in tests for better reliability (#612) - Added code coverage support with `make test-coverage` target (#594, #600) - Enhanced test coverage for logging, terminal handling, exec operations, and OCI sync pipes (#602, #603, #604, #605, #607) ### Critical Bug Fixes - Fixed SIGABRT crash in drop_signal_event when signalfd read fails (#625) - Fixed k8s-file log corruption during log rotation by properly handling buffer state (#563, #570) - Fixed container exit detection in systemd scope environments where process is not direct child of conmon (#545, #571) - Fixed OOM detection on cgroup v2 with proper event counters and race condition handling (#426, #581) - Fixed JSON parsing error in console file descriptor communication with improved escaping (#493, #593) - Fixed missing F-sequence on container exit with partial log output (#252, #592) - Fixed inconsistent error messages when runtime fails (#617, #618) - Fixed errno race condition in logging macros (#574, #575) - Fixed terminal resize event processing to handle each line exactly once (#566) - Fixed memory.events inotify watch to check file existence first (#620, #621) ### New Features - Added log rotation functionality as alternative to log truncation (#211, #596) - New `--log-rotate` option to enable rotation instead of truncation - New `--log-max-files` option to specify number of backup files - New `--log-allowlist-dir` option for allowed log directories - Added `--no-container-partial-message` option (#335, #583) - Added systemd priority prefix parsing to journald logging (#595, #601) - Added container labels to journald log entries via `--log-label` option (#562) ### Improvements - Restored use of writev() system call for better performance (#609) - Added optional systemd support for static builds via DISABLE_SYSTEMD flag (#348, #573) - Documented all CLI options in conmon.8.md (#606) - Fixed meson install path to match Makefile behavior (#304, #585) - Enhanced terminal size validation with upper bound checks (#610, #612) ### Code Quality - Fixed multiple buffer safety and memory allocation issues (#582, #587) - Fixed memory leak in seccomp_accept_cb (#557) - Replaced sprintf with snprintf for security - Improved error handling and logging throughout codebase (#554, #555) - Modernized Go code: removed pkg/errors dependency, updated to ioutil replacements (#559) - CI/CD improvements and Go version updates to 1.23+ (#560, #561, #569) ### Reverts - Reverted exec exit status handling fix that caused regression (#589, #590) ## Issues Fixed #211, #252, #304, #328, #335, #348, #391, #426, #490, #493, #532, #540, #545, #551, #554, #555, #557, #559, #560, #561, #562, #563, #566, #569, #570, #571, #572, #573, #574, #575, #579, #581, #582, #583, #584, #585, #586, #587, #589, #590, #592, #593, #594, #595, #596, #597, #600, #601, #602, #603, #604, #605, #606, #607, #609, #610, #612, #613, #617, #618, #619, #620, #621, #623, #624, #625 ## External Issues Fixed - https://bugzilla.redhat.com/show_bug.cgi?id=2348843 - https://github.com/containers/podman/issues/27335 - https://github.com/containers/podman/issues/26981 ## Contributors Special thanks to all contributors who made this release possible: - Ayato Tokubi - Dan Cermak - Daniel J Walsh - Giuseppe Scrivano - Jan Kaluza - Jindrich Novy - Kir Kolyshkin - Lokesh Mandvekar - Peter Portante - Povilas Kanapickas - Sohan Kunkerkar - renovate[bot] ## Installation Download from GitHub and build from source: ``` git clone https://github.com/containers/conmon.git cd conmon git checkout v2.2.0 make sudo make install ```

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v2.2.0

conmon v2.2.0 Release Notes

Major Changes

Testing Infrastructure Overhaul

Critical Bug Fixes

New Features

Improvements

Code Quality

Reverts

Issues Fixed

External Issues Fixed

Contributors

Installation