nerdctl
podman
nerdctl | podman | |
---|---|---|
38 | 402 | |
9,039 | 27,505 | |
1.6% | 2.2% | |
9.9 | 10.0 | |
7 days ago | 2 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.
nerdctl
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Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025
nerdctl CLI for containerd (Docker replacement) Feels like Docker. But lighter. And hipster-approved.
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How to be Test Driven with Spark: Chapter 5: Leverage spark in a container
If you are unfamiliar with the concept of containers and docker images, I suggest you have a look at docker. It will be leveraged here to start the Spark server for the tests; it's important to mention there are other opensource alternatives like podman or nerdctl to allow containerization.
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Creating containers with containerd on ARM
NERDCTL_VERSION=2.0.3 wget https://github.com/containerd/nerdctl/releases/download/v2.0.3/nerdctl-$NERDCTL_VERSION-linux-arm64.tar.gz tar -xzvf nerdctl-$NERDCTL_VERSION-linux-arm64.tar.gz -C /sbin CNI_VERSION wget https://github.com/containernetworking/plugins/releases/download/v1.6.2/cni-plugins-linux-arm64-vCNI_VERSION.tgz mkdir -p /opt/cni/bin tar -xzvf cni-plugins-linux-arm64-vCNI_VERSION.tgz -C /opt/cni/bin
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Techniques I Use to Create a Great User Experience for Shell Scripts
Here's a script that left me in awe the first time I saw it:
https://github.com/containerd/nerdctl/blob/main/extras/rootl...
I have since copied this pattern for many scripts: logging functions, grouping all global vars and constants at the top and creating subcommands using shift.
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5 Alternatives to Docker Desktop
Rancher Desktop allows you to choose between the Moby engine (offered by Continered) and the dockerd engine (offered by Docker) for building, pushing, and running containers. Compared with Docker Desktop, which provides Docker CLI as a CLI tool, Rancher provides both kubectl and nerdctl for managing Kubernetes and containers, respectively.
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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.
podman
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Building an Online Code Compiler: A Complete Guide
Podman - Alternative container runtime
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Create a simple REST application using Quarkus
Install Podman. Find the latest Podman release on the GitHub Release page, and download the binary for your system architecture. At the time of writing, the latest release was v5.4.1. Install either the unversal pkg installer or the arm or amd version.
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Replacing Kubernetes with Systemd
Neat. I like to see other takes on this. Any reason to use rootless vs `userns=auto`? I haven't really seen any discussion of it other than this issue: https://github.com/containers/podman/discussions/13728
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Docker Management Is Evolving These 8 Tools Made My Life Easier
5. Podman — The Rootless Docker Alternative
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Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025
Podman (aka: “We have Docker at home”) Docker CLI compatibility. Rootless. No daemon. No drama.
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🥳 We built the cli of our dreams to send sms ❣️
Since a few years now, we started to design various cli for internal batch usage, on our Java Stack on top of picocli and quarkus, delivered as images, and run on podman.
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Podman Quadlets with Podman Desktop
Podman quadlet supports "Socket activation of containers" https://github.com/containers/podman/blob/main/docs/tutorial...
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Podman on debian How to fix podman no services after restart
This file was originally from github repo, but with static podman build it is not present.
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How to Build Scalable Document Signing by Integrating BoldSign with .NET Aspire
Docker or Podman for container runtime
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Quadlet: Running Podman containers under systemd
I've been looking for a better solution for local dev on services deployed via quadlet, could you elaborate on this?
I just took a look at the socket activation docs[0]. Is my understanding correct that no `compose.yaml` is required, just running `docker-compose up` with the appropriate env var pointing to the socket is enough to trigger a connection and service activation?
[0] https://github.com/containers/podman/blob/main/docs/tutorial...
What are some alternatives?
podman-compose - a script to run docker-compose.yml using podman
containerd - An open and reliable container runtime
lima - Linux virtual machines, with a focus on running containers
Portainer - Making Docker and Kubernetes management easy.
kaniko - Build Container Images In Kubernetes