Open-source alternatives to Docker Library Docs

This repository serves as the technical documentation source for the .NET ecosystem. It consists of a collection of conceptual guides and technical references written in Markdown, acting as the static site content source for a public documentation portal. The project utilizes a Git-based content management system to handle technical writing through pull requests and automated build pipelines. It distinguishes itself through a specialized infrastructure that aggregates content and samples from multiple repositories and branches into a single unified output. The system covers a broad range of

Ko is a daemonless container image builder and OCI image generator specifically for Go applications. It compiles Go source code into binaries and packages them directly into container images, pushing them to registries without requiring a local container runtime or daemon. The tool specializes in multi-platform image distribution, producing images for various CPU architectures and operating systems from a single execution. It distinguishes itself by automating the entire pipeline from Go import paths to Kubernetes deployment or serverless function packaging for architectures like AWS Lambda.

This project is a collection of curated and standardized Docker base images that serve as reliable starting points for building containerized applications. It functions as an OCI container image repository and a build template library, providing a central source of truth for images that adhere to Open Container Initiative standards for portability. The project utilizes an automated image lifecycle pipeline to build, tag, and push images, ensuring that dependencies remain current and security patches are applied. It specifically supports cross-platform distribution by providing a multi-archite

This project is a containerized build automation system and self-hosted DevOps platform provided as a Docker image. It serves as a distributed build orchestrator and a Dockerized continuous integration and delivery server, ensuring consistent execution environments across different infrastructure. The system distinguishes itself through a distributed execution model that separates a primary controller from multiple remote agents connected via SSH, TCP, or web sockets. It utilizes a modular extensibility framework that allows the core system functionality to be augmented through the installati

This project is a comprehensive collection of tutorials and guided laboratories designed to teach containerization, networking, and security using Docker. It serves as a learning path for building portable images and executing isolated processes. The materials provide specific guides for managing container clusters and scaling services through Docker Swarm and overlay networks. It includes a security handbook for implementing image scanning and secret management, as well as laboratories dedicated to modernizing legacy applications by wrapping older software installers into containers. The co

Hazelcast is a distributed data platform that combines an in-memory data grid with a stream processing engine to support real-time analytics and event-driven applications. It functions as a partitioned, distributed key-value store that replicates data across cluster nodes to provide low-latency access and high availability. The platform also serves as a distributed SQL query engine, allowing users to execute standard SQL statements against both in-memory datasets and external data sources. What distinguishes Hazelcast is its use of a distributed consensus subsystem to maintain strongly consis

Microsandbox is a runtime for creating and managing lightweight, hardware-isolated virtual machines — called sandboxes — that boot directly from standard OCI container images. Each sandbox runs as its own host process with a separate kernel, filesystem, and network stack, providing process-per-sandbox isolation. The project includes a command-line tool and multi-language SDKs (Rust, TypeScript, Python, Go) for programmatic lifecycle control, and it communicates with sandbox agents over Unix sockets using a CBOR-encoded protocol. What distinguishes Microsandbox is its combination of host-manag

This project provides a containerized execution agent designed to host automated workflows for version control platforms. It functions as a self-hosted runner that automatically registers with a central service upon startup and terminates after completing a single job, ensuring that every task runs in a clean, isolated environment. The system distinguishes itself through its focus on ephemeral lifecycle management and security. By utilizing a non-root execution model, it enforces least-privilege principles during job processing. The runner supports dynamic configuration through environment va

This project is a customized OpenJDK distribution optimized for high-throughput distributed applications. It features a coroutine runtime engine that replaces kernel threads with lightweight symmetric coroutines to increase concurrency and reduce scheduling overhead while maintaining standard Java interface compatibility. The runtime distinguishes itself through a multi-tenant resource manager and specialized networking providers. It implements resource isolation for CPU and memory to prevent cross-tenant interference and integrates Remote Direct Memory Access for high-throughput, low-latency

This project is an interactive tutorial generator and static site generator that transforms source documents, such as Markdown and Google Docs, into structured instructional guides. It functions as a documentation conversion tool that compiles source content into static HTML assets and metadata for distribution to public or private audiences. The system utilizes a custom element UI framework to embed interactive instructional components using standard HTML custom elements, removing the need for external JavaScript frameworks. It supports multi-format content export, allowing a single source o

This project is a Docker container image library providing official Dockerfiles and configurations for deploying enterprise software and database products. It serves as a source of container specifications and OCI compatible image repositories for packaging commercial application software into standardized container images. The repository specifically focuses on Oracle software containerization, offering pre-configured images and build scripts to deploy Oracle database instances in containerized environments. The project implements a standardized image build workflow and utilizes multi-stage

This project is a GitHub Action that automates the building and pushing of Docker container images to OCI registries. It functions as a multi-platform container builder and publisher using the Buildx engine to create images compatible with multiple hardware architectures. The tool distinguishes itself through software supply chain security features, including the generation of software bills of materials and provenance attestations to verify image integrity. It optimizes construction speed via remote cache management and supports secure secret injection to prevent sensitive data from persisti

Deepagents is an LLM agent orchestration platform and stateful application server designed for deploying and managing AI agents built with computational graphs. It provides a containerized runtime environment that handles agent execution, state persistence, and the versioning of AI assistants. The platform distinguishes itself through deep integration with the Model Context Protocol, allowing agents to function as servers that expose tools and capabilities to external clients. It features a sophisticated observability suite for capturing execution traces, performing LLM-based evaluations agai

The project provides an open container runtime specification and standardized schema for defining container configurations, namespaces, resource limits, security policies, and filesystem mounts across platforms. It outlines the formal configuration formats, lifecycle operations, and execution environments necessary for portable, isolated container workloads. The specification covers container lifecycle management protocols and structured rules governing container creation, execution startup, process signaling, state tracking, and resource teardown. It standardizes local bundle packaging and

Packer is a machine image builder and multi-platform image orchestrator used to create identical virtual machine images for multiple platforms from a single source configuration. It functions as an infrastructure as code tool, utilizing the HashiCorp Configuration Language to define versioned and reproducible templates for cloud image provisioners. The tool is distinguished by its plugin-based extension model, which allows it to load external binaries for builders and provisioners to support various cloud platforms and virtualization environments. It includes a post-processor pipeline to tran

Baserow is a no-code relational database and application builder that allows users to create structured data tables and business tools through a visual interface. It functions as a headless REST API data backend and a self-hosted data workspace, providing a platform for managing collaborative databases while maintaining full control over data residency. The platform integrates large language models to serve as an LLM-powered data platform, capable of generating database structures, record content, and technical workflows from natural language. It also acts as a Model Context Protocol server,

Heyform is an open-source form builder and self-hosted data collection platform. It provides a no-code designer for creating dynamic web-based surveys and input forms, supported by an extensible backend for managing submissions and storing results in a private database. The system distinguishes itself through advanced form logic and branding controls. It includes a conditional logic engine to show or hide sections based on user responses and allows for precise visual identity customization through configurable themes and custom CSS injection. The platform covers a broad range of operational

dotenvx is a cross-platform command-line tool that encrypts .env files using public-key cryptography and decrypts them at runtime, injecting the plaintext secrets into a process environment before execution. It treats encrypted environment files as self-contained vaults that are loaded and decrypted entirely in memory each time a command runs. What sets dotenvx apart is its ability to armor the private decryption key itself with a passphrase, allowing that key to be stored remotely and retrieved only when decryption is needed. A single encrypted vault file can be bound to multiple per-envir

Bento is a system for defining, building, and distributing standardized, cross-platform virtual machine images and base boxes. It functions as a virtual machine image builder that automates the creation of images using declarative configuration templates. The project provides a pipeline for building, testing, and publishing images to a cloud registry. This workflow utilizes a collection of templates to generate minimal, standardized base boxes across multiple operating systems. The system covers image automation via template-based generation and validation tools for testing built images agai

This project is a protest coordination toolkit and activism resource repository designed to distribute curated documents and legal guides. It serves as a hub for coordinating political protests and civil disobedience by providing a public website that hosts informational materials. The toolkit functions as a forkable codebase, allowing users to rapidly replicate the site structure to deploy their own protest sites. It uses a static site model to transform markdown documentation into publicly accessible pages for sharing across social media. The platform covers activist information distributi

Devpush is a self-hosted Git-based PaaS that automates the deployment of containerized applications. It maps each Git branch to an isolated Docker environment, creating a multi-environment runtime where staging, production, and other workflows run in parallel with scoped configuration and encrypted variables. Deployments are triggered automatically by Git push events via a configured GitHub App, managing the full lifecycle from build to release with zero-downtime rollouts and instant rollback. The platform includes a built-in Let's Encrypt SSL manager that automatically provisions and renews

IncludeOS is a unikernel operating system that bundles application code with only the necessary kernel drivers into a single bootable image. It functions as a resource-efficient cloud service virtual machine and a lightweight serverless runtime environment designed to minimize memory footprints and boot times. The project provides a Linux compatibility layer via a C library, allowing applications written for Linux to be compiled and executed within the unikernel environment. It also serves as a network appliance framework for building high-performance firewalls and load balancers using config

Boot2Docker is a minimal Linux distribution that boots entirely from RAM to turn any machine into a Docker host. It is delivered as a bootable ISO image that can be written to SD cards, USB sticks, or hard disks, starting Docker containers in about five seconds without requiring a full operating system installation. The system is preconfigured for use as a VirtualBox virtual machine, with persistent disk mounting that automatically stores Docker images, containers, volumes, and SSH keys across restarts. It supports host-to-container file sharing through VirtualBox Guest Additions integration,

This project provides a containerized Ubuntu desktop environment with a graphical user interface accessible via a web browser. It implements a Docker-based image that integrates a web gateway and a browser-based client to stream a Linux workstation over HTTP and HTTPS. The system is distinguished by its ability to route audio from the container to the host system for playback and its support for SSL/TLS encryption to secure the remote desktop connection. It also includes configurations for hosting the interface behind a reverse proxy using relative URL path mapping. The project covers displa

go-containerregistry is a Go library and toolkit for interacting with OCI and Docker registries. It provides a programmatic implementation of the Open Container Initiative distribution specification to fetch, upload, and manage container images, manifests, and layers. The library functions as a container image manipulation tool and a multi-platform image index manager. It enables the resolution and management of manifest lists that target various hardware architectures and operating systems without requiring a local daemon. The toolkit covers a broad range of registry interactions, including

This project is a World of Warcraft server emulator that simulates a multiplayer online game world, managing player data and game logic. It functions as a modular game server framework and an NPC AI and scripting engine, providing the necessary infrastructure to host a persistent virtual environment. The system is distinguished by a modular framework that allows for the extension of core engine behavior through isolated modules and function hooks without modifying the source code. It includes a structured SQL data layer for managing authentication, character states, and world environment sett

Practicalnode is a comprehensive educational resource and backend development framework for mastering server-side programming with Node.js. It provides a structured approach to building scalable network services, REST APIs, and real-time applications using asynchronous JavaScript. The project serves as a detailed implementation guide for several core backend patterns, including MongoDB data modeling and the construction of REST API development kits. It emphasizes a specific workflow for Docker containerization and offers a variety of strategies for managing user identity through stateless tok