libnetwork
nerdctl
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libnetwork | nerdctl | |
---|---|---|
8 | 33 | |
2,120 | 7,384 | |
0.5% | 2.9% | |
3.3 | 9.6 | |
6 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.
libnetwork
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Docker Networking: A Step-by-Step Guide for Developers
Container network model is a standard proposed by Docker that provides a well-defined interface or API that helps in establishing connections between containers and network plugins. Libnetwork is the native Go implementation of the CNM for connecting containers. It provides an interface between the Docker engine and network drivers. It is built on 3 main components: Sandbox, Endpoint, Network
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Podman 4.0.0
Thanks! It seems that netavark uses macvlan to avoid creating bridge devices. Although it can also use bridges, and it seems that Docker is adding macvlan support too: https://github.com/moby/libnetwork/blob/master/docs/macvlan....
- The docker plugin API documentation is basically nonexistent
- Dedicated Ipv6 to each container
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Is Docker Swarm broken?
I'm having an issue with docker daemon crashing only when using overlay networks. May 21 05:54:59 svr dockerd[13153]: time="2021-05-21T05:54:59.535581254-03:00" level=warning msg="Error (Unable to complete atomic operation, key modified) deleting object [endpoint e8t3rwhuv3r0llsv43rup41vr ab46637f5a936ecc74bc6216601b4df118e758c02512e31a477466cd72c99526], retrying...." this error deleted my network and then crashed all the containers that were using it, container State: "Error": "failed to get network during CreateEndpoint: network e8t3rwhuv3r0llsv43rup41vr not found", "ExitCode": 128, sometimes it exits with code 0 and 143 too I found this similar issue, but it seems abandoned https://github.com/moby/libnetwork/issues/2341
- Pihole DNS does not work in WireGuard when both are in separate docker containers on the same machine
- Docker breaks IPv6 binding in patch update
nerdctl
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Colima k8s nix setup
What about the docker-cli? colima also ships with a docker-compatible cli to interact with containerd called nerdctl. We can execute the same docker cli commands like:
- Nerdctl v2 Beta
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Nginx Unit – Universal web app server
Using nerdctl: https://github.com/containerd/nerdctl
I'd really disagree that compose files are somehow one-shot, or blindly modified. To the contrary, really, we have them checked in with the source code. Upon deployment to the cluster, the (running) services will be intelligently updated or replaced (in a rolling manner, causing zero downtime). LXC might be more elegant, but I have no idea what simple, file-based format I could use to let engineers describe the environment their app should run in without compose.
I need something that even junior devs can start up with a single command, that can be placed in the VCS along with the code, and that will not require deep Linux knowledge to get running. Open for suggestions here, really.
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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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Going through a Kubernetes training with autogenerated captions and about half are coming up like this.
That's why nerdctl, their cli binary, is so well named.
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Python + containerd? Who might be interested?
Well, it is indeed a good option. However, containerd is a good alternative that is growing even among developers. Please see: https://github.com/containerd/nerdctl
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How to own your own Docker Registry address
Nerdctl/containerd has IPFS support :)
https://github.com/containerd/nerdctl/blob/main/docs/ipfs.md
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DockerHub replacement stratagy and options
nerdctl supports IPFS for both image pulling and pushing, including encrypted images and eStargz lazy pulling. For building, the current method is a locally hosted translator so that the traditional pulls can be converted to work over IPFS. They even have docs on running it on k8s node, though if my reading is correct this isn't exactly a cloud native approach (running systemd services on each node...).
- Docker's deleting Open Source images and here's what you need to know
- Release v1.0.0 · containerd/nerdctl
What are some alternatives?
compose-spec - The Compose specification
lima - Linux virtual machines, with a focus on running containers
podman-desktop-companion - Podman desktop companion
podman-compose - a script to run docker-compose.yml using podman
cri-dockerd - dockerd as a compliant Container Runtime Interface for Kubernetes
kaniko - Build Container Images In Kubernetes
firebuild - Convenience of containers, security of virtual machines
podman - Podman: A tool for managing OCI containers and pods.
mariadb-podman-socket-activat
Moby - The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems
k3s - Lightweight Kubernetes