Go binary to change Docker container user/group and file permissions at runtime.
fixuid is a Go binary that changes a Docker container's user/group and file permissions that were set at build time to the UID/GID that the container was started with at runtime. Primary use case is in development Docker containers when working with host mounted volumes.
s6 overlay for containers (includes execline, s6-linux-utils & a custom init)
s6-overlay is an easy-to-install (just extract a tarball or two!) set of scripts and utilities allowing you to use existing Docker images while using s6 as a pid 1 for your container and process supervisor for your services.
The playground allows you to learn about systemd interactively, right from your browser! Create examples without the danger of breaking your system, and without being distracted by hundreds of unrelated unit files.
Version control for your database
Robust schema evolution across all your environments.
With ease, pleasure, and plain SQL.
Debian Live system / CD for sysadmins and texttool-users.
Grml is a bootable live system (Live-CD) based on Debian. Grml includes a collection of GNU/Linux software especially for system administrators. Users don't have to install anything on fixed storage. Grml is especially well suited for administrative tasks like installation, deployment and system rescue.
Analyzes resource usage and performance characteristics of running containers.
cAdvisor (Container Advisor) provides container users an understanding of the resource usage and performance characteristics of their running containers. It is a running daemon that collects, aggregates, processes, and exports information about running containers. Specifically, for each container it keeps resource isolation parameters, historical resource usage, histograms of complete historical resource usage and network statistics. This data is exported by container and machine-wide.
Quick Reference Cheat Sheet
Here are some cheatsheets and quick references contributed by open source angels.
Talos is a modern OS designed to be secure, immutable, and minimal. Its purpose is to host Kubernetes clusters, so it is tightly integrated with Kubernetes.
Mailu, Docker based mail server
Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.
Duc is a collection of tools for inspecting and visualizing disk usage.
Checkov scans cloud infrastructure configurations to find misconfigurations before they're deployed.
Checkov uses a common command line interface to manage and analyze infrastructure as code (IaC) scan results across platforms such as Terraform, CloudFormation, Kubernetes, Helm, ARM Templates and Serverless framework.
HPCng is an open community of people and organizations interested in the broad modernization of HPC capabilities across a wide range of use-cases ranging from traditional HPC to enterprise and hyper-scale workloads.
Apptainer is an open source container platform designed to be simple, fast, and secure. Many container platforms are available, but Apptainer is designed for ease-of-use on shared systems and in high performance computing (HPC) environments.