Open-source alternatives to Docker Images

This is an educational training course that teaches Docker, Compose, Swarm, and Kubernetes for building and deploying containers from development to production. The course covers end-to-end Docker-based workflows for building, testing, and deploying containers using Compose, Swarm, and Kubernetes in cloud-native DevOps pipelines. The material covers architecture patterns for containerized applications, including declarative service orchestration, network bridging, image layering, health monitoring, and persistent storage across Docker and Kubernetes environments. It addresses multi-container

Shiro is a personal website template and markdown static site generator designed to establish a professional digital portfolio. It provides a minimalist framework for deploying a high-performance personal site featuring an integrated administrative panel and SEO optimizations. The project distinguishes itself through a WebGL interactive frontend that renders dynamic particle physics backgrounds and animated SVG signatures. It incorporates a WebSocket notification system to push instant updates to visitors and uses API-driven metadata enrichment to transform external links into rich visual car

This project is a collection of best practices and curated templates for building secure, stable, and production-ready Docker images. It provides standards for OCI image optimization and a guide for implementing industry-standard configurations in container environments. The repository offers specific patterns for security hardening, such as implementing non-root user execution with static IDs to prevent host privilege escalation. It also provides structural templates for multi-stage builds to separate build-time dependencies from the final runtime environment. Additional capabilities cover

BaoTa is a web-based Linux server control panel and system administration dashboard designed for managing hosting environments and system resources. It provides a graphical interface to translate administrative actions into system-level configurations, allowing users to manage Linux servers and web hosting stacks without relying solely on the command line. The platform distinguishes itself through AI-driven server operations, utilizing artificial intelligence for performance analysis and the execution of maintenance tasks via natural language commands. It supports multi-node orchestration, en

This project provides a collection of implementation kits, guides, and source code designed to teach containerized application development and cluster management. It serves as a learning path for packaging applications with Docker and orchestrating workloads within Kubernetes. The repository includes practical walkthroughs for building automated delivery pipelines using containerized runners and build agents. It also provides a suite of guides for implementing cloud-native observability, deploying service meshes, and managing Kubernetes cluster configurations. The material covers a broad ran

Buildah is a daemonless container tool used for building and managing OCI-compliant container images. It functions as a command line utility that creates and modifies images without requiring a background process or root privileges. The tool transforms Dockerfile instructions into standard images and allows for the generation of images by committing the state of a running container. It supports the creation of images from scratch or base images, ensuring that all output adheres to Open Container Initiative specifications for portability. Beyond image construction, it provides capabilities fo

This project is a production-ready Docker deployment template for FastAPI applications. It provides a standardized Python web application container that integrates Uvicorn as the ASGI server and Gunicorn as the process manager to handle concurrent requests across multiple CPU cores. The configuration enables performance tuning by adjusting worker processes and server settings based on available CPU resources. It utilizes a multi-stage Docker build to separate build dependencies from the final runtime image. The system covers containerized web hosting, including support for environment-variab

This project provides official container images for the Node.js runtime and its package managers. It serves as a containerized JavaScript runtime that bundles the engine and dependencies to ensure consistent application execution across different CPU architectures and operating systems. The project offers a range of Linux-based runtime images, including full, slim, and minimal distributions, allowing users to balance package availability against disk footprint. To improve security, it provides a non-root application environment that executes processes as an unprivileged user. The available i

This project is a collection of reference implementations and demonstration projects covering computer vision, DevOps automation, distributed systems, and Java-based microservices. It provides a programming reference library and practical examples for building server-side applications, containerizing services, and orchestrating clusters. The repository features a comprehensive toolset for DevOps automation, including scripts and playbooks for CI/CD pipelines and automated cluster installation. It includes a computer vision demo project for image object detection and facial analysis, as well a

This project is a collection of pre-configured Docker images that provide ready-to-run environments for interactive computing and data science. It functions as a scientific computing stack and a polyglot notebook server, bundling language interpreters and libraries for Python, R, and Julia within a containerized system to ensure reproducible research environments. The collection uses a layered image hierarchy to provide versioned software dependencies and support for hardware acceleration across different CPU architectures. It allows for the creation of custom images based on a foundation of

PTF is a penetration testing tool manager and modular software orchestrator designed to automate the installation, compilation, and updating of security tools across different operating system distributions. It functions as a security tooling automation utility that fetches the latest releases and creates global system launchers for a curated collection of security binaries. The framework allows for the packaging of security tool suites into portable container images to ensure consistent execution across different infrastructure environments. It enables the distribution of specific sets of co

This project is a GraphQL web application with a React frontend that utilizes server-side rendering to generate HTML on the server for improved initial load times and search engine indexing. The application supports both static site generation for fast delivery via pre-rendered HTML files and containerized deployment to ensure consistent runtime behavior across different environments. The project includes capabilities for GraphQL data integration, frontend asset optimization through code-splitting, and component UI verification using snapshot testing. It also provides a mechanism for managin

This project is an educational platform and curriculum designed to teach cloud-native engineering, infrastructure automation, and software delivery practices. It provides a structured roadmap for mastering core competencies, including container orchestration, GitOps workflows, and continuous integration and delivery. The platform distinguishes itself by combining technical training with professional career development. It offers hands-on projects, mentored simulations, and technical proficiency assessments that mirror real-world engineering environments. Users can progress through sequential

Docker is an OCI container engine and runtime orchestrator used to build, run, and manage isolated applications. It functions as a container image builder for creating portable snapshots of applications and a registry manager for storing, versioning, and distributing those images across environments. The platform provides a centralized daemon to control the creation, execution, and termination of containerized workloads. It allows for the assembly of modular container systems by combining build tools, registries, and runtimes. Its core capabilities cover container image creation, registry ad

This project is a cloud-native software distribution and an OCI container image library. It provides a collection of pre-configured, hardened container images and Docker Compose application stacks designed for consistent deployment across cloud and on-premises environments. The images are production-ready and compiled using standardized security configurations and vulnerability scanning to reduce attack surfaces. These hardened application images are designed to minimize manual setup and security risks during deployment. The project covers container vulnerability management, production-ready

This project is a type-safe web application template and admin dashboard starter built with Next.js, TypeScript, and the shadcn/ui component library. It serves as a multi-tenant SaaS boilerplate designed for developing administrative interfaces and software-as-a-service applications. The starter distinguishes itself through integrated SaaS infrastructure, including multi-tenant workspace management, organization-level permissions, and subscription billing integration. It features role-based access control to gate specific pages and navigation items based on user roles or subscription tiers.

Moon is a monorepo build system and task runner designed to orchestrate complex projects with multiple packages. It functions as a dependency graph orchestrator that executes build targets in topological order and utilizes input hashing to cache results and skip redundant work. The project features a polyglot toolchain manager that automates the installation and versioning of language runtimes and CLI tools to ensure environment consistency. It also includes a plugin framework based on WebAssembly, allowing developers to extend build logic and toolchain behavior using any supported language.

This project provides a standardized Python Docker image, serving as a Linux-based runtime environment for executing Python applications. It is an OCI-compliant container designed to ensure consistent software execution across different platforms. The images support containerized application deployment, enabling environment parity between local development and remote servers. This foundation allows for the creation of standardized build pipelines and the development of microservices architectures. The build process incorporates multi-stage builds and layered image hierarchies to manage image

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

Wireflow is a real-time collaborative flowchart tool and visual mapping application. It provides a shared digital canvas where multiple users can simultaneously design diagrams, map user flows, and create process maps. The application uses an operational transformation engine to resolve conflicting edits and maintain a consistent state across all users. A vector-based renderer ensures that flowchart elements remain sharp at any zoom level, while a WebSocket synchronization layer broadcasts canvas updates and cursor movements instantly between clients. The project is delivered as a containeri

This project is a technical study and analysis guide focused on the internal architecture of Node.js. It provides an in-depth examination of the runtime, focusing on how the engine manages memory handles, executes asynchronous operations, and implements core module logic. The guide specifically analyzes the integration of native C++ classes and functions into JavaScript and documents the behavior of the libuv event loop. It includes detailed references for optimizing performance by identifying V8 compiler bailouts and profiling execution to improve resource efficiency. The material covers a

NodeOS is an operating system that boots a Linux kernel with Node.js running as the primary userspace, replacing traditional shell utilities with JavaScript execution. Every npm package is treated as a native system command, making hundreds of thousands of packages directly executable at the OS level. The operating system is built inside Docker containers using a reproducible pipeline that generates ext2 filesystem images, with the ability to conditionally disable KVM for systems without hardware virtualization. It mounts a persistent usersfs partition for user home directories, preserving ch

This is an educational resource that provides a comprehensive guide to blockchain and distributed ledger technologies, covering everything from fundamental concepts to practical deployment. The guide systematically explains the core architecture of blockchain systems, including consensus-based distributed ledgers, cryptographic hash chains, Merkle trees, and smart contract execution engines, while also detailing permissioned channel architectures and modular service platforms for enterprise use. The resource distinguishes itself by offering a dual-track learning path that serves both non-tech

cf2dns is a tool for automating IP performance screening and DNS record updates. It functions as a DNS optimizer and IP filter that identifies high-performance Cloudflare IP addresses and updates DNS records via API to improve website loading speeds. The project provides a dynamic DNS route manager that maps optimized IP addresses to specific network carriers. This process includes regional connection defense to mitigate network interference and bypass connection blocks using curated IP pools. The system handles both IPv4 and IPv6 record management and includes scheduling mechanisms for regu

This project is a mobile-first web interface built with Vue 3 that replicates the layout and interaction patterns of a short-form video platform. It is designed as a responsive web application focused on high-performance mobile rendering and short-video workflows. The application features a vertical video carousel with infinite scrolling and a vertical-slide view orchestration system for seamless content playback. It employs a responsive layout using viewport-relative units to ensure consistent rendering across various mobile screen sizes and aspect ratios. The project incorporates Pinia for

Osmedeus is a security workflow orchestration engine that coordinates AI agents, shell commands, and scanning tools through declarative YAML pipelines. It functions as a distributed security scanner, a declarative workflow automator, and an AI agent framework for security, enabling automated multi-step security analysis with conditional branching, parallel execution, and distributed workers. The engine distinguishes itself through a hybrid runner model that executes workflow steps on the local host, inside Docker containers, or over SSH to remote machines, selected per step or module. It supp

SQL Chat is a Docker-deployed chat interface that translates natural language questions into SQL queries and executes them against connected databases. It uses a large language model to generate SQL from plain English instructions, supporting both querying and record modification through INSERT, UPDATE, and DELETE statements within the chat conversation flow. The application connects to MySQL, PostgreSQL, MSSQL, TiDB Cloud, and OceanBase databases through a unified driver abstraction layer, allowing users to interact with multiple database types from a single chat interface. Users provide the