28e5a3c5a4
full diff: https://github.com/opencontainers/runc/compare/v1.0.0-rc92...v1.0.0-rc93 release notes: https://github.com/opencontainers/runc/releases/tag/v1.0.0-rc93 Release notes for runc v1.0.0-rc93 ------------------------------------------------- This is the last feature-rich RC release and we are in a feature-freeze until 1.0. 1.0.0~rc94 will be released in a few weeks with minimal bug fixes only, and 1.0.0 will be released soon afterwards. - runc's cgroupv2 support is no longer considered experimental. It is now believed to be fully ready for production deployments. In addition, runc's cgroup code has been improved: - The systemd cgroup driver has been improved to be more resilient and handle more systemd properties correctly. - We now make use of openat2(2) when possible to improve the security of cgroup operations (in future runc will be wholesale ported to libpathrs to get this protection in all codepaths). - runc's mountinfo parsing code has been reworked significantly, making container startup times significantly faster and less wasteful in general. - runc now has special handling for seccomp profiles to avoid making new syscalls unusable for glibc. This is done by installing a custom prefix to all seccomp filters which returns -ENOSYS for syscalls that are newer than any syscall in the profile (meaning they have a larger syscall number). This should not cause any regressions (because previously users would simply get -EPERM rather than -ENOSYS, and the rule applied above is the most conservative rule possible) but please report any regressions you find as a result of this change -- in particular, programs which have special fallback code that is only run in the case of -EPERM. - runc now supports the following new runtime-spec features: - The umask of a container can now be specified. - The new Linux 5.9 capabilities (CAP_PERFMON, CAP_BPF, and CAP_CHECKPOINT_RESTORE) are now supported. - The "unified" cgroup configuration option, which allows users to explicitly specify the limits based on the cgroup file names rather than abstracting them through OCI configuration. This is currently limited in scope to cgroupv2. - Various rootless containers improvements: - runc will no longer cause conflicts if a user specifies a custom device which conflicts with a user-configured device -- the user device takes precedence. - runc no longer panics if /sys/fs/cgroup is missing in rootless mode. - runc --root is now always treated as local to the current working directory. - The --no-pivot-root hardening was improved to handle nested mounts properly (please note that we still strongly recommend that users do not use --no-pivot-root -- it is still an insecure option). - A large number of code cleanliness and other various cleanups, including fairly large changes to our tests and CI to make them all run more efficiently. For packagers the following changes have been made which will have impact on your packaging of runc: - The "selinux" and "apparmor" buildtags have been removed, and now all runc builds will have SELinux and AppArmor support enabled. Note that "seccomp" is still optional (though we very highly recommend you enable it). - make install DESTDIR= now functions correctly. Signed-off-by: Sebastiaan van Stijn <github@gone.nl> |
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The Moby Project
Moby is an open-source project created by Docker to enable and accelerate software containerization.
It provides a "Lego set" of toolkit components, the framework for assembling them into custom container-based systems, and a place for all container enthusiasts and professionals to experiment and exchange ideas. Components include container build tools, a container registry, orchestration tools, a runtime and more, and these can be used as building blocks in conjunction with other tools and projects.
Principles
Moby is an open project guided by strong principles, aiming to be modular, flexible and without too strong an opinion on user experience. It is open to the community to help set its direction.
- Modular: the project includes lots of components that have well-defined functions and APIs that work together.
- Batteries included but swappable: Moby includes enough components to build fully featured container system, but its modular architecture ensures that most of the components can be swapped by different implementations.
- Usable security: Moby provides secure defaults without compromising usability.
- Developer focused: The APIs are intended to be functional and useful to build powerful tools. They are not necessarily intended as end user tools but as components aimed at developers. Documentation and UX is aimed at developers not end users.
Audience
The Moby Project is intended for engineers, integrators and enthusiasts looking to modify, hack, fix, experiment, invent and build systems based on containers. It is not for people looking for a commercially supported system, but for people who want to work and learn with open source code.
Relationship with Docker
The components and tools in the Moby Project are initially the open source components that Docker and the community have built for the Docker Project. New projects can be added if they fit with the community goals. Docker is committed to using Moby as the upstream for the Docker Product. However, other projects are also encouraged to use Moby as an upstream, and to reuse the components in diverse ways, and all these uses will be treated in the same way. External maintainers and contributors are welcomed.
The Moby project is not intended as a location for support or feature requests for Docker products, but as a place for contributors to work on open source code, fix bugs, and make the code more useful. The releases are supported by the maintainers, community and users, on a best efforts basis only, and are not intended for customers who want enterprise or commercial support; Docker EE is the appropriate product for these use cases.
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It is your responsibility to ensure that your use and/or transfer does not violate applicable laws.
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Moby is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.