kraken
buildkit
kraken | buildkit | |
---|---|---|
14 | 53 | |
5,852 | 7,686 | |
0.7% | 1.0% | |
3.5 | 9.8 | |
8 days ago | about 8 hours ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
kraken
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BTFS (BitTorrent Filesystem)
https://github.com/uber/kraken?tab=readme-ov-file#comparison...
"Kraken was initially built with a BitTorrent driver, however, we ended up implementing our P2P driver based on BitTorrent protocol to allow for tighter integration with storage solutions and more control over performance optimizations.
Kraken's problem space is slightly different than what BitTorrent was designed for. Kraken's goal is to reduce global max download time and communication overhead in a stable environment, while BitTorrent was designed for an unpredictable and adversarial environment, so it needs to preserve more copies of scarce data and defend against malicious or bad behaving peers.
Despite the differences, we re-examine Kraken's protocol from time to time, and if it's feasible, we hope to make it compatible with BitTorrent again."
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Resilient image cache/mirror
Kraken seems unmaintained: https://github.com/uber/kraken/issues/313
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DockerHub replacement stratagy and options
For within your boundary of control, whether that be r/selfhosting, r/homelab, or enterprise a small registry or something like uber's kraken registry makes more sense.
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Docker is deleting Open Source organisations - what you need to know
First hit on Google is https://github.com/uber/kraken Did not know such thing exists.
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MinIO passes 1B cumulative Docker Pulls
Uber Engineering open-sourced Kraken [1], their peer-to-peer docker registry. I remember it originally using the BitTorrent protocol but in their readme they now say it is "based on BitTorrent" due to different tradeoffs they needed to make.
As far as I know there aren't any projects doing peer-to-peer distribution of container images to servers, probably because it's useful to be able to use a stock docker daemon on your server. The Kraken page references Dragonfly [2] but I haven't grokked it yet, it might be that.
It's also possible that in practice you'd want your CI nodes optimized for compute because they're doing a lot of work, your registry hosts for bandwidth, and your servers again for compute, and having one daemon to rule them all seems elegant but is actually overgeneralized, and specialization is better.
1 https://github.com/uber/kraken
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Ask HN: Have You Left Kubernetes?
If you're pulling big images you could try kube-fledged (it's the simplest option, a CRD that works like a pre-puller for your images), or if you have a big cluster you can try a p2p distributor, like kraken or dragonfly2.
Also there's that project called Nydus that allows starting up big containers way faster. IIRC, starts the container before pulling the whole image, and begins to pull data as needed from the registry.
https://github.com/senthilrch/kube-fledged
https://github.com/dragonflyoss/Dragonfly2
https://github.com/uber/kraken
https://nydus.dev/
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Kube-fledged: Cache Container Images in Kubernetes
Uber Kraken: Kraken is a P2P Docker registry capable of distributing TBs of data in seconds (URL: https://github.com/uber/kraken)
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How to handle registry outages ? Registry outage contingency plans ?
Might want to consider a private p2p solution like https://github.com/uber/kraken or similar.
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How to handle locally build container images across nodes? Container Registry the only way?
Cost, availability, upkeep. Same as any other service. There are alternatives… https://github.com/uber/kraken
- Can Kubernetes pre-pull and cache images?
buildkit
- ARM vs x86 em Docker
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The worst thing about Jenkins is that it works
> We are uding docker-in-docker at the moment
You can also run a "less privileged" container with all the features of Docker by using rootless buildkit in Kubernetes. Here are some examples:
https://github.com/moby/buildkit/tree/master/examples/kubern...
https://github.com/moby/buildkit/blob/master/examples/kubern...
It's also possible to run dedicated buildkitd workers and connect to them remotely.
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Show HN: Dockerfile Explorer
- BuildOp evaluates its input as additional LLB operations to add to the graph to allow for dynamic build graphs (also unused in the Dockerfile frontend)
With the Dockerfile Explorer, we run the Dockerfile frontend[1] that BuildKit uses inside of WASM to parse and produce the LLB output locally in your browser. We then embed the Monaco Editor so that you can change your Dockerfile to see how it impacts the LLB output that BuildKit will use to build your Docker image.
You can see a quick video and read more details on how it all works here: https://depot.dev/blog/dockerfile-explorer.
We'd love any feedback or ideas folks would like around this type of tool!
[0] https://github.com/moby/buildkit#exploring-llb
- macOS Containers v0.0.1
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Jenkins Agents On Kubernetes
Now since Kubernetes works off of containerd I'll be taking a different approach on handling container builds by using nerdctl and the buildkit that comes bundled with it. I'll do this on the amd64 control plane node since it's beefier than my Raspberry Pi workers for handling builds and build related services. Go ahead and download and unpack the latest nerdctl release as of writing (make sure to check the release page in case there's a new one):
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Frequent Docker BuildKit cache misses with w/ multi-stage and docker-container
There's a 2-year-old moby/buildkit GitHub issue about frequent build cache misses when using the BuildKit docker-container driver and multi-stage builds. Anyone else in this sub run into this problem and/or have reasonable workarounds? It seems like something that should come up pretty often.
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A Panic in BuildKit: an Open Source Journey
A couple months ago I encountered a bug in buildkit - when enabling OpenTelemetry tracing, we got occasional panics. With a bit of investigation, we found the cause, fixed and tested in our fork and internal deployments, and pushed to upstream.
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Is it possible to copy files from a manifest in Dockerfile?
I do some search in the internet and there seems to be no good solution, so I just create a feature request: https://github.com/moby/buildkit/issues/3859
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Cicada - CI/CD platform written with Rust
Yeah, only Linux containers at the moment, BuildKit is the way we are constructing pipelines and doing caching. Split on if we will support non-linux hosts, but definitely want to find a good solution to not doing Docker-in-Docker.
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Better support of Docker layer caching in Cargo
Relevant issues are https://github.com/moby/buildkit/issues/3011 and https://github.com/moby/buildkit/issues/1512.
What are some alternatives?
Dragonfly - This repository has be archived and moved to the new repository https://github.com/dragonflyoss/Dragonfly2.
buildah - A tool that facilitates building OCI images.
kube-fledged - A kubernetes operator for creating and managing a cache of container images directly on the cluster worker nodes, so application pods start almost instantly
kaniko - Build Container Images In Kubernetes
containers-roadmap - This is the public roadmap for AWS container services (ECS, ECR, Fargate, and EKS).
jib - 🏗 Build container images for your Java applications.
deckschrubber - Deckschrubber inspects images of a Docker Registry and removes those older than a given age. :high_brightness::ship:
buildx - Docker CLI plugin for extended build capabilities with BuildKit
image-cache-daemon
podman - Podman: A tool for managing OCI containers and pods.
ipdr - 🐋 IPFS-backed Docker Registry
nerdctl - contaiNERD CTL - Docker-compatible CLI for containerd, with support for Compose, Rootless, eStargz, OCIcrypt, IPFS, ...