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README

Cedana

GitHub Release

output-onlinepngtools

Welcome to Cedana! This repository is the home of the Cedana daemon and the low-level orchestration of our save/migrate/resume (SMR) functionality, and is the entry-point into the larger cedana ecosystem.

We build on top of and leverage CRIU to provide userspace checkpoint/restore of processes and the many different abstraction levels that lie above. We also provide the ability to checkpoint/restore rootfs in both containerd and CRIO interfaces for full container checkpoint/restores.

For a list of supported container runtimes, see features.

We can monitor, migrate and automate checkpoints across a real-time network and compute configuration enabling ephemeral and hardware agnostic compute. See our website for more information about our managed product.

Some problems Cedana can help solve include:

Cold-starts for containers & processes
Keeping a process or container running independent of hardware/network failure
Managing multiprocess/multinode systems (independent of Kubernetes/SLURM or any orchestration)
Kubernetes checkpoint/restore
GPU checkpoint/restore
And more!

Documentation

To get started using Cedana locally, check out the documentation.

Contributing

See CONTRIBUTING.md and developer guides in the documentation.

Extension points exported contracts — how you extend this code

Notify (Interface)

Notify interface [3 implementers]

pkg/criu/notify.go

RuntimeClient (Interface)

RuntimeClient is the interface that K8s runtime clients must implement [2 implementers]

plugins/k8s/pkg/kube/runtime.go

Storage (Interface)

(no doc) [3 implementers]

pkg/io/storage.go

Host (Interface)

(no doc) [3 implementers]

internal/db/db.go

Handler (FuncType)

RunVM = Handler[daemon.RunVMReq, daemon.RunVMResp]

pkg/types/handler.go

Manager (Interface)

Defines the plugin manager interface

pkg/plugins/manager.go

Snapshotter (Interface)

(no doc) [1 implementers]

plugins/cloud-hypervisor/pkg/vm/snapshotter.go

Manager (Interface)

(no doc)

internal/cedana/gpu/manager.go

Core symbols most depended-on inside this repo

String

called by 88

plugins/k8s/pkg/kube/runtime.go

GetState

called by 68

internal/cedana/job/job.go

GetDetails

called by 64

internal/cedana/job/job.go

internal/cedana/streamer/file.go

IfAvailable

called by 46

pkg/plugins/feature.go

Done

called by 39

internal/cedana/job/manager.go

New

called by 37

internal/cedana/job/manager.go

Shape

Method 444

Function 428

Struct 103

Interface 12

FuncType 9

TypeAlias 7

Languages

Go100%

Modules by API surface

pkg/criu/notify.go36 symbols

internal/db/db.go26 symbols

pkg/criu/notify_callback.go25 symbols

pkg/client/client.go23 symbols

internal/cedana/streamer/fs.go23 symbols

internal/cedana/job/manager_lazy.go23 symbols

internal/cedana/job/job.go22 symbols

pkg/profiling/io.go21 symbols

internal/cedana/streamer/file.go21 symbols

pkg/criu/notify_callback_multi.go20 symbols

internal/cedana/gpu/manager.go20 symbols

internal/cedana/gpu/controller.go19 symbols

For agents

$ claude mcp add cedana \
  -- python -m otcore.mcp_server <graph>

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