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no edit summary
== Project ideas ==
== Project ideas ==
=== Automated Policy-Driven Checkpointing Operator for Kubernetes ===
=== Kubernetes Operator for Automated Checkpointing ===
'''Summary:''' Extend the Checkpoint/Restore Operator with support for automated policy-based checkpointing.
'''Summary:''' Extend the Checkpoint/Restore Operator with support for automated policy-based checkpointing.
The Checkpoint/Restore Operator for Kubernetes currently supports only policies and parameters that limit the number of checkpoints. This project aims to extend it with support for automated policy-based checkpointing.
The [https://github.com/checkpoint-restore/checkpoint-restore-operator Checkpoint/Restore Operator] for Kubernetes currently supports only policies and parameters that limit the number of checkpoints. This project aims to extend the current support with automated policy-based checkpointing, allowing users to define triggers for checkpoint creation, such as time-based schedules, resource thresholds (CPU, memory, I/O usage), Kubernetes events (node drain, pod eviction, preemption), and application-level signals or annotations.
'''Links:'''
* https://github.com/checkpoint-restore/checkpoint-restore-operator
* https://kubernetes.io/docs/reference/node/kubelet-checkpoint-api
'''Details:'''
* Skill level: intermediate
* Language: Go
* Expected size: 350 hours
* Mentors: Viktória Spišaková <spisakova@ics.muni.cz>, Radostin Stoyanov <rstoyanov@fedoraproject.org>, Adrian Reber <areber@redhat.com>
=== Forensic Checkpointing Framework for Kubernetes ===
Kubernetes provides a highly dynamic and ephemeral environment where workloads can start and disappear very quickly and are continuously being rescheduled across different nodes in the cluster.
One of the key challenges with forensic investigations in Kubernetes is capturing and preserving the evidence during security incidents. This project aims to address this problem by developing a framework for efficiently capturing and preserving the state of all running applications in a container at a specific point in time, along with the associated container configurations and metadata. These artifacts would allow investigators to accurately reconstruct the events, create a timeline, and analyze security incidents without impacting the running cluster. This is an important step towards enabling forensic readiness for Kubernetes, where cluster administrators proactively ensure the environments are prepared to collect and preserve evidence before a security incident occurs.
'''Links:'''
* https://github.com/checkpoint-restore/checkpointctl
* [https://fosdem.org/2026/events/attachments/F9RANH-forensic-snapshots-in-kubernetes/slides/266249/fosdem_2_4dh73ni.pdf Investigating Security Incidents with Forensic Snapshots in Kubernetes]
* [https://www.cncf.io/reports/cloud-native-security-whitepaper/ Cloud Native Security Whitepaper]
* [https://media.defense.gov/2022/Aug/29/2003066362/-1/-1/0/CTR_KUBERNETES_HARDENING_GUIDANCE_1.2_20220829.PDF Kubernetes Hardening Guide]
'''Details:'''
'''Details:'''
* Language: Go
* Language: Go
* Expected size: 350 hours
* Expected size: 350 hours
* Mentors: Radostin Stoyanov <rstoyanov@fedoraproject.org>, Viktória Spišaková <spisakova@ics.muni.cz>, Adrian Reber <areber@redhat.com>
* Mentors: Lorena Goldoni <lory.goldoni@gmail.com>, Radostin Stoyanov <rstoyanov@fedoraproject.org>, Adrian Reber <areber@redhat.com>
=== Enabling Checkpoint/Restore of Rootless Containers ===
[https://rootlesscontaine.rs/ Rootless containers] are containers that can be created, run, and managed by unprivileged users. Container engines such as Podman natively support running containers in a rootless mode to improve security and usability. While checkpoint/restore functionality is already available for rootful containers and unprivileged checkpointing is possible with the <code>CAP_CHECKPOINT_RESTORE</code> capability, container engines do not yet support native checkpointing of containers running in rootless mode. This project aims to explore and address the remaining challenges required to enable unprivileged checkpoint/restore for rootless containers.
'''Links:'''
* https://github.com/checkpoint-restore/criu/pull/1930
'''Summary:''' Support compression for page images
* https://github.com/torvalds/linux/commit/124ea650d3072b005457faed69909221c2905a1f
* https://src.fedoraproject.org/rpms/criu/pull-request/10#request_diff
'''Details:'''
'''Details:'''
* Skill level: intermediate
* Skill level: intermediate
* Language: C
* Language: C, Go
* Expected size: 350 hours
* Expected size: 350 hours
* Mentors: Radostin Stoyanov <rstoyanov@fedoraproject.org>, Adrian Reber <areber@redhat.com>
* Mentors: Radostin Stoyanov <rstoyanov@fedoraproject.org>, Alexander Mikhalitsyn <alexander@mihalicyn.com>, Andrei Vagin <avagin@gmail.com>
=== Files on detached mounts ===
=== Files on detached mounts ===
* Mentors: Radostin Stoyanov <rstoyanov@fedoraproject.org>, Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
* Mentors: Radostin Stoyanov <rstoyanov@fedoraproject.org>, Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
* Suggested by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
* Suggested by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
=== Add support for SCM_CREDENTIALS / SCM_PIDFD and friends ===
'''Summary:''' Support for SCM_CREDENTIALS / SCM_PIDFD
SCM_CREDENTIALS and SCM_PIDFD are types of SCM (Socket-level Control Messages). They play a crucial role
in systemd and many other user space applications. This project is about adding support for these
SCMs to be properly saved and restored back with CRIU. There is an existing code in OpenVZ CRIU fork,
see [1] and [2]. Goal would be first of all to properly port this code, cover with extensive tests and
ensure that SCM_PIDFD / SO_PEERPIDFD are handled correctly. Also we expect to cover things like
SO_PASSRIGHTS and SO_PASSPIDFD.
There is some extra source of complexity here pidfds can be "stale" (see PIDFD_STALE in Linux kernel)
and we need to ensure that we properly cover those cases.
'''Links:'''
* [1] openvz-criu https://bitbucket.org/openvz/criu.ovz/history-node/918653a0a343194385592d7b50b5bd7a8fbe1cc1/criu/sk-unix.c?at=hci-dev
* [2] openvz-criu https://bitbucket.org/openvz/criu.ovz/history-node/918653a0a343194385592d7b50b5bd7a8fbe1cc1/criu/sk-queue.c?at=hci-dev
* [3] Linux kernel https://github.com/torvalds/linux/commit/5e2ff6704a275be009be8979af17c52361b79b89
* [4] Linux kernel https://github.com/torvalds/linux/commit/c679d17d3f2d895b34e660673141ad250889831f
'''Details:'''
* Skill level: intermediate / advanced
* Language: C
* Expected size: 350 hours
* Suggested by: Alexander Mikhalitsyn <alexander@mihalicyn.com>
* Mentors: Andrei Vagin <avagin@gmail.com>, Alexander Mikhalitsyn <alexander@mihalicyn.com>
== Suspended project ideas ==
== Suspended project ideas ==