registry.k8s.io
podman
registry.k8s.io | podman | |
---|---|---|
20 | 360 | |
350 | 21,889 | |
2.6% | 2.2% | |
7.2 | 10.0 | |
4 months ago | 4 days 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.
registry.k8s.io
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Pull through cache, like AWS just announced
If you stop to think about, what AWS is selling here, it's quite funny. Most of the infrastructure behind registry.k8s.io is hosted on AWS (and also GCP). So AWS essentially tells you: Don't trust the upstream registry, it might go down, cache it on your own registry, hosted also by us.
- Resilient image cache/mirror
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Announcing pull through cache for registry.k8s.io in Amazon Elastic Container Registry
For example: if you only allow cluster autoscaler and metrics server from registry.k8s.io you can pull those images through the cache as someone who has create repo IAM privileges. If someone without create repo privileges tries to pull a new image it will fail because they can't create the initial repo.
- How are they doing it?
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registry.k8s.io down from Paris, France?
https://registry.k8s.io (the root url at /) redirects you to https://github.com/kubernetes/registry.k8s.io where we have an issue tracker.
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FailedCreatePodSandBox
❗ This container is having trouble accessing https://registry.k8s.io
- registry.k8s.io/README.md at main · kubernetes/registry.k8s.io · GitHub
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How to own your own Docker Registry address
Hosting a forwarding / redirect server instead of actually hosting images is probably a decent idea.
The K8s proxy is redirecting from only hosting on GCR to community-owned registries - https://kubernetes.io/blog/2023/03/10/image-registry-redirec...
You can view the code here - https://github.com/kubernetes/registry.k8s.io
But because everyone is already pointing at gcr.io (just like many openfaas users point at docker.io/) - they're having to do a huge campaign to announce the new URL - the same would apply with the author's solution here.
I wrote some automation for hosting (not redirects) in arkade with the OSS registry - Get a TLS-enabled Docker registry in 5 minutes - https://blog.alexellis.io/get-a-tls-enabled-docker-registry-...
The registry is also something you can run on a VM if you so wish, and have act as a pull through cache.
Apart from reliability - GitHub's container registry is the current next best option - but we have to ask ourselves, what happens when they start charging or the outages start to last longer or are more frequent than 1-2 times per week as we've seen in Q1 2023.
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Docker's deleting Open Source images and here's what you need to know
One annoyance with how docker images are specified is they include the location where they are stored. So if you want to change where you store you image you break everyone.
I wonder if what regsitry.k8s.io does could be generalized:
https://github.com/kubernetes/registry.k8s.io/blob/main/cmd/...
The idea is the depending on which cloud you are pulling the image from, they will use the closest blob store to service the request. This also has the effect that you could change the source of truth for the registry without breaking all Dockerfiles.
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k8s.gcr.io Image Registry Will Be Frozen From the 3rd of April 2023
If you are using updated helm charts then most of them have already replaced with registry.k8s.io, for example nginx ingress so not really breaking change.
podman
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How I ended up using Colima for Docker on Apple Silicon
A lot of well-known Docker alternatives emerged at this point, the most commonly recommended of which must be Podman (along with Podman Desktop). This is what I use on my Windows machines, and this was the first solution that I tried on the Macbook as well.
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Podman 5.0 has been released
Example of why: https://github.com/containers/podman/issues/5102#issuecommen...
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Exploring 5 Docker Alternatives: Containerization Choices for 2024
Podman
- Podman 5.0.0: final release candidate
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A Gentle Introduction to Containerization and Docker
Even though we will focus on Docker for this article, I wanted to mention that there are more container creation and management tools such as Podman, Rkt, and so on.
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A Journey to Find an Ultimate Development Environment
By using containerization, the application will always have the same configuration that is used in the development environment and production environment. There is no more "It works on my machine". Some examples of containerization technologies are Docker and Podman.
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Anatomy of Docker
Podman Documentation. Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System.
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Exploring Podman: A More Secure Docker Alternative
AFAIK podman either already supports pods in quadlet container files, or will in the near future. https://github.com/containers/podman/pull/20762
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Podman Desktop 1.6 released: Even more Kubernetes and Containers features
Podman as a devcontainers engine doesn't currently work if you use devcontainer features [1] or (and this sounds like you're issue) if you use WSL2.
I haven't submitted the WSL2 issue to the Podman team yet. If you get to it before I do, can you like it here?
https://github.com/containers/podman/issues/18691#issuecomme...
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Oracle data base
You can also use their Oracle Linux Docker images with the database preinstalled using either Podman or Docker. Just make absolutely sure you are downloading something you are licensed to use, because it seems really easy to accidentally infringe copyright via this method.
What are some alternatives?
official-images - Primary source of truth for the Docker "Official Images" program
Portainer - Making Docker and Kubernetes management easy.
cri-o - Open Container Initiative-based implementation of Kubernetes Container Runtime Interface
lima - Linux virtual machines, with a focus on running containers
one-click-apps - Community Maintained One Click Apps (https://github.com/caprover/caprover)
kaniko - Build Container Images In Kubernetes
docker-registry-mirror - Helm chart for a Docker registry. Successor to stable/docker-registry chart.
rancher - Complete container management platform
ipdr - 🐋 IPFS-backed Docker Registry
containerd - An open and reliable container runtime
devenv - Fast, Declarative, Reproducible, and Composable Developer Environments
nerdctl - contaiNERD CTL - Docker-compatible CLI for containerd, with support for Compose, Rootless, eStargz, OCIcrypt, IPFS, ...