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Top 23 OCI Open-Source Projects
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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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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025 | dev.to | 2025-04-23
containerd Official Site The runtime powering most cloud K8s clusters and your future mental breakdowns.
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Project mention: Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025 | dev.to | 2025-04-23
gVisor: Sandboxed Container Runtime by Google For when your security team actually audits things.
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Project mention: Containerizing Spring Boot Applications with Docker: A Complete Guide | dev.to | 2025-05-18
GitHub - GoogleContainerTools/jib: 🏗 Build container images for your Java applications.
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Project mention: Securing Kubernetes: Encrypting Data at Rest with kubeadm and containerd on Amazon Linux 2023 | dev.to | 2025-04-15
Installed runc v1.2.6 runc
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Project mention: Dockerfile Best Practices: Building Efficient and Secure Containers | dev.to | 2024-08-16
Regularly scan your Docker images for vulnerabilities using tools like Trivy or Clair.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Over time, registries accumulate a lot of garbage in the form of blobs referenced by old images that are not needed anymore. Many registry implementations, such as CNCF Distribution, offer garbage-collection mechanisms to delete unreferenced blobs and free up storage space. However, for that to happen, old images (tags) referencing them have to be deleted first.
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Project mention: Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025 | dev.to | 2025-04-23
BuildKit Faster Docker Builds Build speed + cache control = win.
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Buildah is another tool that can build OCI container images without requiring root privileges:
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syft
CLI tool and library for generating a Software Bill of Materials from container images and filesystems
Syft (https://github.com/anchore/syft) and ScanCode (https://github.com/aboutcode-org/scancode-toolkit) are good open-source tools to generate SBOMs and search repos for licensing information — I'm curious to hear if there are reasons why those wouldn't work for enterprise purposes.
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docker-images
Official source of container configurations, images, and examples for Oracle products and projects
Setting up an Oracle 19c database using Docker is straightforward, but having a detailed guide can be helpful for reference and for those new to this process. While Oracle 12c images are available on Docker Hub, Oracle now hosts newer database images, including 19c, on their GitHub repository. However, you'll still need to download the Oracle Database installation .zip files directly from Oracle's website. Additionally, patching requires an Oracle Support license and a valid login to My Oracle Support (MOS).
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kata-containers
Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/
Project mention: Using Kata Containers as a Container Runtime in OpenStack Zun | dev.to | 2025-04-06You can follow this post or official document of Kata Containers here for any details.
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Yes - using Cri-o[0] or docker checkpoint/restore api (which uses cri-o)
[0] - https://cri-o.io/
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Cloud-Free-Tier-Comparison
Comparing the free tier offers of the major cloud providers like AWS, Azure, GCP, Oracle etc.
At Cloud Study Network, we believe that quality education and professional certifications should be accessible to everyone. Free-Certifications.com is our contribution to democratizing technology education and career advancement opportunities.
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Flatpak isn't really intended for command-line apps. Maybe this is where something like dockerc (https://github.com/NilsIrl/dockerc) can shine?
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komiser
Open-source cloud-environment inspector. Supporting AWS, GCP, Azure, and more! Your cloud resources will have nowhere to hide!
Another option is a similar product offered by Tailwarden, which is open source. It will offer a few different options and the hosting part will be up to you. This is Komiser, whose code is available on Github, and which provides a Docker image.
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Project mention: Building a Linux Container Runtime from Scratch | news.ycombinator.com | 2025-03-26
Why not use any of the existing OCI Runtimes? They take well-defined[0] JSON description as input, and are pretty well-contained (single static binary). And because they are separate binaries, not libraries, you don't need to worry about things like thread safety or FD leaking.
[0] https://github.com/opencontainers/runtime-spec/blob/main/con...
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
OCI discussion
OCI related posts
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Automatic tag deletion for Docker registries
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Create a simple REST application using Quarkus
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Embracing Open Standards in Cloud-Native Development
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Open Container Initiative
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Kubernetes Without Docker: Why Container Runtimes Are Changing the Game in 2025
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Securing Kubernetes: Encrypting Data at Rest with kubeadm and containerd on Amazon Linux 2023
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We clone a running VM in 2 seconds
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A note from our sponsor - InfluxDB
www.influxdata.com | 19 May 2025
Index
What are some of the best open-source OCI projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | podman | 26,739 |
| 2 | containerd | 18,580 |
| 3 | gvisor | 16,478 |
| 4 | jib | 13,920 |
| 5 | runc | 12,351 |
| 6 | clair | 10,628 |
| 7 | grype | 9,841 |
| 8 | distribution | 9,518 |
| 9 | buildkit | 8,724 |
| 10 | buildah | 7,851 |
| 11 | syft | 6,956 |
| 12 | docker-images | 6,748 |
| 13 | youki | 6,667 |
| 14 | kata-containers | 6,105 |
| 15 | cri-o | 5,410 |
| 16 | Cloud-Free-Tier-Comparison | 4,970 |
| 17 | pouch | 4,642 |
| 18 | dockerc | 4,562 |
| 19 | dockerfile | 4,078 |
| 20 | komiser | 4,050 |
| 21 | image-spec | 3,735 |
| 22 | cloudsploit | 3,515 |
| 23 | runtime-spec | 3,357 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com