go-containerregistry
podman-compose
go-containerregistry | podman-compose | |
---|---|---|
17 | 57 | |
2,962 | 4,712 | |
1.2% | 1.6% | |
6.8 | 8.8 | |
6 days ago | 13 days ago | |
Go | Python | |
Apache License 2.0 | GNU General Public License v3.0 only |
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.
go-containerregistry
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A gopher’s journey to the center of container images
I also explored another module, go-containerregistry, in order to build images without root privileges. The approach is completely different, and we can manipulate each component of the container image separately. This can present an advantage, if you're looking for a way to fine tune things.
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Skip build if "${CI_REGISTRY_IMAGE}:${CI_COMMIT_SHORT_SHA}" exists on container registry
Use crane ls in a different job to check the tags in the registry. Create an artifact from its output that you evaluate in your kaniko job to check if the build should run or not.
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Docker: We’re No Longer Sunsetting the Free Team Plan
Multi-arch builds are easy to "transfer" IMHO
crane cp docker.io/openfaas/gateway:0.10.0 ghcr.io/openfaas/gateway:0.10.0
If you've not used it yet - do take a look. Crane doesn't pull the images into a local Docker library for re-tagging and re-pushing.
https://github.com/google/go-containerregistry/blob/main/cmd...
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Weekly: This Week I Learned (TWIL?) thread
crane - tool to copy images from one repo to another - https://github.com/google/go-containerregistry/blob/main/cmd/crane/doc/crane.md
- Dockerhub to (likely?) delete a lot of organizations.
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FYI: Docker is deleting Open Source organisations
pretty sure the crane being referred by alex is this one: https://github.com/google/go-containerregistry/tree/main/cmd/crane
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Docker's deleting Open Source images and here's what you need to know
https://github.com/google/go-containerregistry/tree/main/cmd...
It was recommended in this article:
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Crafting container images without Dockerfiles
This is one of my absolute favorite topics. Pardon me while I rant and self-promote :D
Dockerfiles are great for flexibility, and have been a critical contributor to the adoption of Docker containers. It's very easy to take a base image, add a thing to it, and publish your version.
Unfortunately Dockerfiles are also full of gotchas and opaque cargo-culted best practices to avoid them. Being an open-ended execution environment, it's basically impossible to tell even during the build what's being added to the image, which has downstream implications for anybody trying to get an SBOM from the image for example.
Instead, I contribute to a number of tools to build and manage images without Dockerfiles. Each of them are less featureful than Dockerfiles, but being more constrained in what they can do, you can get a lot more visibility into what they're doing, since they're not able to do "whatever the user wants".
1. https://github.com/google/go-containerregistry is a Go module to interact with images in the registry and in tarballs and layouts, in the local docker daemon. You can append layers, squash layers, modify metadata, etc.
2. crane is a CLI that uses the above (in the same repo) to make many of the same modifications from the commandline. `crane append` for instance adds a layer containing some contents to an image, entirely in the registry, without even pulling the base image.
3. ko (https://ko.build) is a tool to build Go applications into images without Dockerfiles or Docker at all. It runs `go build`, appends that binary on top of a base image, and pushes it directly to the registry. It generates an SBOM declaring what Go modules went into the app it put into the image, since that's all it can do.
4. apko (https://apko.dev) is a tool to assemble an image from pre-built apks, without Docker. It's capable of producing "distroless" images easily with config in YAML. It generates an SBOM declaring exactly what apks it put in the image, since that's all it can do.
Bazel's rules_docker is another contender in the space, and GCP's distroless images use it to place Debian .debs into an image. Apko is its spiritual successor, and uses YAML instead of Bazel's own config language, which makes it a lot easier to adopt and use (IMO), with all of the same benefits.
I'm excited to see more folks realizing that Dockerfiles aren't always necessary, and can sometimes make your life harder. I'm extra excited to see more tools and tutorials digging into the details of how container images work, and preaching the gospel that they can be built and modified using existing tooling and relatively simple libraries. Excellent article!
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ImagePullPolicy: IfNotPresent - (image doesn’t exist in repo) - Is it possible to pull the micro service image from an EKS node and then push to repo?
Look at using tools like skopeo or crane
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Containerd... Do I use Docker to build the container image? I miss the Docker Shim
Pretty much any tool works: docker, podman, kaniko, crane(if you're brave), ko... list goes on.
podman-compose
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One Minute: Compose
Podman (via podman-compose),
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Exploring Podman: A More Secure Docker Alternative
Source code for the feature is here if you care to inspect it:
https://github.com/containers/podman-compose/blob/bce40c2db3...
Admittedly, I'm still on podman 4.3.1, but I dont' see any reason why this would stop working in later versions of podman.
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Podman Desktop v1.5 with Compose onboarding and enhanced Kubernetes pod data
Can someone link me to what Compose means in this context? Google takes me to https://github.com/containers/podman-compose but I just wanna make sure that's what they are talking about.
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Containers Demystified 🐳🤔
🛑 Docker Desktop is free for personal use but requires a paid subscription for enterprises. A free open source alternative is Podman and Podman Compose which uses the same core syntax as the Docker tools and can be used as a near drop-in replacement.
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Getting Podman running on Ubuntu 22.04 LTS
I’m dumb. When I wrote the article it was late. Docker-Compose really was a game changer.
Yea Podman compose exists. I’ll add a section about docker compose to it in an update.
https://github.com/containers/podman-compose
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Help with updating multiple containers together.
From googling this error I've come across a few different threads but I haven't gained any success. Firstly I found this github thread which doesn't reference my error but still seems related. I followed the "sudo podman-compose systemd --action create-unit" and "podman-compose systemd -a register -f myfile.yml" minus the -f flag as it wouldnt run with that. This indeed created a [email protected] file, but its created in the /etc/systemd/user directory rather than /etc/systemd/system which raises an issue as I'm having to run these two containers as root. I try registering the podman-compose@torrent but I'm told the service doesnt exist. Running it as user I'm told it failed to connect to bus: no medium found. So I basically reached a dead end there.
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We're no longer sunsetting the Free Team plan | Docker
Have a look at Podman Compose
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SMB Share & Containers SELinux help request.
You can also use podman-compose for the orchestration https://github.com/containers/podman-compose
- We apologize. We did a terrible job announcing the end of Docker Free Teams.
- Docker is now forcing open source organizations to pay. Does this affect Nextcloud?
What are some alternatives?
skopeo - Work with remote images registries - retrieving information, images, signing content
Portainer - Making Docker and Kubernetes management easy.
regclient - Docker and OCI Registry Client in Go and tooling using those libraries.
nerdctl - contaiNERD CTL - Docker-compatible CLI for containerd, with support for Compose, Rootless, eStargz, OCIcrypt, IPFS, ...
container-diff - container-diff: Diff your Docker containers
traefik - The Cloud Native Application Proxy
image-spec - OCI Image Format
cockpit-podman - Cockpit UI for podman containers
gcr-cleaner - Delete untagged image refs in Google Container Registry or Artifact Registry
containerd - An open and reliable container runtime
docker-tools - This is a repo to house some common tools for our various docker repos.
multipass - Multipass orchestrates virtual Ubuntu instances