Open-source alternatives to Atlantis

Kilocode is an autonomous engineering platform designed to orchestrate AI agents for complex software development tasks. It functions as a comprehensive system for automating coding, testing, and repository management by integrating directly with your codebase and terminal. The platform provides a unified gateway for model orchestration, allowing for the management of agentic workflows, event-driven automation, and persistent session state across distributed development environments. The platform distinguishes itself through its federated task management and policy-based access control, which

This project is a GitOps infrastructure framework designed for managing bare metal servers, container clusters, and networking. It serves as a declarative system for orchestrating the deployment and lifecycle of self-hosted services, using Git as the source of truth to synchronize the desired state of the environment. The framework differentiates itself through a comprehensive automation suite that covers the entire hardware-to-service pipeline. It includes a PXE-based bare metal provisioner for network booting and operating system installation, alongside a lightweight container orchestration

Pulumi is an infrastructure-as-code framework that enables the definition, deployment, and management of cloud resources using general-purpose programming languages. It functions as a cloud resource orchestrator that coordinates the lifecycle of heterogeneous infrastructure by executing code to construct dependency graphs and reconciling the desired state against actual cloud environments. The platform distinguishes itself through a language-host runtime bridge that allows developers to use standard programming languages to define infrastructure, rather than relying solely on domain-specific

Cerbos is an open-source authorization service that provides a centralized, language-agnostic engine for managing access control. It functions as a policy-as-code platform, allowing teams to define, test, and distribute authorization rules using declarative YAML or JSON configurations. By decoupling access logic from application code, it enables consistent permission enforcement across diverse service stacks. The project distinguishes itself through its ability to translate high-level authorization policies into native database query filters. This capability allows applications to enforce sec

Terrascan is a static analysis tool designed to evaluate infrastructure-as-code configuration files for security vulnerabilities and compliance violations. By parsing these files into an intermediate representation, it identifies risks before cloud resources are provisioned, serving as a compliance auditor for cloud-native environments. The tool functions as a policy-as-code engine, allowing users to define and enforce custom security rules and industry benchmarks using a specialized query language. It distinguishes itself through its ability to integrate directly into development and deploym

tfenv is a Terraform version manager and command-line utility designed to install and switch between multiple versions of the Terraform CLI on a single local system. It functions as a binary switcher that ensures consistent infrastructure as code tooling across different projects and team environments. The utility manages active executable versions through environment variables and local configuration files. It supports project version pinning to lock specific versions for different environments or client projects, preventing compatibility issues during collaboration. The tool provides utili

Awesome Copilot is a comprehensive framework for autonomous software development, providing the infrastructure to orchestrate multi-agent teams and automate complex coding workflows. It functions as a centralized platform for managing AI-driven development, enabling developers to deploy specialized agents that interact with local files, terminal commands, and external APIs to execute end-to-end software delivery tasks. The project distinguishes itself through its focus on governance and extensibility, offering a suite of security controls, policy-based execution guardrails, and audit trails t

The AWS Cloud Development Kit is an infrastructure-as-code framework that enables developers to define and provision cloud resources using familiar programming languages. By utilizing construct-based synthesis, it translates high-level, object-oriented code into declarative templates, allowing for the automated management of complex cloud environments through a centralized, code-driven control plane. The framework distinguishes itself through its ability to model infrastructure as a dependency-aware resource graph, ensuring that components are provisioned and updated in the correct order. It

Dask is a parallel computing framework and distributed task scheduler designed to scale Python data science workflows from single machines to large clusters. It functions as a cluster resource manager that orchestrates computational logic by representing tasks and their dependencies as directed acyclic graphs. This architecture allows the system to automate the distribution of workloads across available hardware while managing complex execution requirements. The project distinguishes itself through a lazy evaluation engine that defers data operations until they are explicitly requested, enabl

This project is a Terraform provider that enables the management of Azure cloud resources through an infrastructure as code workflow. It serves as a programmatic interface for creating and configuring services via the Azure Resource Manager API, functioning as a declarative system for provisioning virtual infrastructure. The tool orchestrates the lifecycle of Azure virtual machines, networks, and storage. It replaces manual portal configuration with version-controlled scripts to automate the deployment of cloud services and scale environments across development, staging, and production stages

Meshery is a cloud native management plane used for the orchestration and administration of service meshes and Kubernetes clusters across multiple cloud providers. It provides a centralized interface to configure cloud native components and manage infrastructure through a unified abstraction layer. The platform features a visual infrastructure modeler that translates diagrams into manifests and a simulation engine for dry-running configuration changes. It synchronizes infrastructure state with version control via GitOps workflows, providing visual previews of pull request changes to evaluate

Devtron is a Kubernetes management platform and CI/CD orchestrator designed to unify application lifecycles and infrastructure operations across multiple clusters from a single interface. It serves as a centralized dashboard for orchestrating workloads, managing security, and providing observability for Kubernetes environments. The platform distinguishes itself with a no-code workflow engine for automating container builds and software delivery pipelines, alongside a visual GitOps deployment tool for managing declarative applications and reconciling configuration drift. Its capability surfac

Meshery is a service mesh management plane and cloud native infrastructure orchestrator. It provides a visual design-as-code environment for modeling microservices and infrastructure components through declarative blueprints, functioning as a centralized platform for designing, deploying, and managing service mesh infrastructure. The platform is distinguished by its ability to translate visual designs into active deployments and its use of gRPC-based adapters to integrate with diverse infrastructure providers. It features a multi-tenant architecture that manages shared workspaces and role-bas

Puppet is an infrastructure as code tool and configuration management framework used to automate the provisioning and state orchestration of server fleets. It functions as a declarative state orchestrator that manages server configurations and system settings to ensure consistency and reproducibility across a fleet of machines. The system utilizes a declarative state modeling approach and an idempotent execution engine to maintain configuration state and prevent environment drift. It employs resource-based abstraction and a client-server architecture to translate high-level specifications int

Pigsty is a full-stack orchestration suite for deploying, monitoring, and managing high-availability PostgreSQL clusters and their supporting infrastructure. It functions as a cluster management platform and high-availability suite that automates failover, manages virtual IPs, and ensures data consistency through distributed consensus. The project distinguishes itself by providing a comprehensive database infrastructure-as-code framework and a dedicated observability stack. It incorporates a backup and recovery manager supporting point-in-time recovery via S3-compatible object storage, alongs

This project is a structured educational guide and curriculum for mastering infrastructure as code. It functions as a cloud provisioning guide and DevOps training material, providing a set of lessons and practical exercises for deploying and managing cloud resources through declarative configuration. The curriculum covers the development of reusable modules, the orchestration of multiple environments using workspaces, and the management of remote state files with locking mechanisms. It also includes instruction on cloud secret management to secure sensitive data. The material spans core infr

This project is an infrastructure as code framework and library of reusable playbooks designed for server configuration and DevOps workflow automation. It provides a Linux server configuration suite and specialized tools for provisioning multi-node Kubernetes clusters to support containerized applications. The library enables the automation of infrastructure tasks and the orchestration of multi-server workflows. It includes specific logic for deploying containerized workloads and managing application environments across different hosting platforms. The codebase covers broad capability areas

Argo CD is a declarative, GitOps-based continuous delivery tool designed for Kubernetes. It functions as a centralized control plane that synchronizes application states from version-controlled repositories directly into target clusters, ensuring that the live environment consistently matches the desired configuration defined in Git. The platform distinguishes itself through its ability to manage multi-cluster deployments from a single interface, providing unified oversight across distinct computing environments. It employs a controller-based reconciliation loop to continuously monitor for co

This project is a unified, cloud-native policy engine designed to decouple authorization and security logic from application codebases. It functions as a centralized authorization service that evaluates structured input data against declarative rules, enabling consistent policy enforcement across microservices, infrastructure, and continuous integration pipelines. The engine utilizes a specialized logic programming language to express complex constraints, which are compiled into an optimized intermediate representation for high-performance evaluation. By supporting both sidecar-based deployme

Nomad is a distributed workload orchestrator and infrastructure automation platform designed to manage the lifecycle of applications across large-scale, heterogeneous environments. It functions as a multi-cloud orchestration engine, providing a unified control plane to deploy, scale, and govern containers, virtual machines, and legacy applications. By utilizing declarative job specifications, the system ensures infrastructure convergence and maintains the desired state across distributed data centers and geographic regions. The platform distinguishes itself through a flexible, plugin-based ar

Boto3 is the AWS SDK for Python, providing a programmatic interface for managing and automating AWS cloud infrastructure and services. It serves as a cloud management API client and resource manager for provisioning, configuring, and scaling virtual servers, databases, and storage. The library enables the implementation of infrastructure-as-code through declarative templates and scripts, allowing for the deployment of identical resource stacks across multiple accounts and geographic regions. It also provides a framework for coordinating distributed workflows, serverless functions, and contain

ZenML is an orchestration platform designed for building, deploying, and monitoring reproducible machine learning pipelines and agentic workflows. It provides a unified framework that manages the entire lifecycle of machine learning assets, from data processing and model training to the deployment of persistent inference services. By decoupling pipeline logic from underlying compute and storage, the platform enables teams to transition workflows seamlessly from local development environments to production-grade cloud infrastructure. The platform distinguishes itself through a service-oriented

The agent-governance-toolkit is a framework for enforcing security policies, managing zero-trust identities, and sandboxing the execution of autonomous AI agents. It provides a governance layer designed to control the behavior of agents through the use of a security policy engine, cryptographic identity management, and a runtime execution sandbox. The project distinguishes itself through a multi-tier privilege ring system and a cryptographic identity mesh that secures communication between autonomous entities. It implements a decay-based trust scoring mechanism to track entity reliability and

Walle-web is a continuous delivery platform and DevOps release manager designed to automate the deployment, rollback, and release of code across multiple server environments. It functions as a container deployment orchestrator and multi-environment server manager, providing a centralized web interface for coordinating application delivery. The system distinguishes itself through a combination of canary release management and containerized application delivery. It utilizes a RESTful deployment API to integrate external tools into the delivery pipeline and employs hook-based workflow orchestrat

This project provides a framework for managing multi-agent systems, designed to automate complex software development, infrastructure, and business workflows. It functions as a multi-agent workflow orchestrator that routes tasks to domain-specific workers while maintaining state persistence and infrastructure automation. By leveraging large language models, the system decomposes high-level objectives into actionable plans, ensuring that complex operations are executed with consistency and reliability. The framework distinguishes itself through its hierarchical agent registry and policy-driven

Unstructured is an enterprise-grade data orchestration engine designed to transform raw, unstructured files into structured, machine-readable formats. It functions as a comprehensive platform for document ingestion, partitioning, and enrichment, specifically engineered to prepare complex data for retrieval-augmented generation and agentic AI workflows. The platform distinguishes itself through its sophisticated document processing strategies, which combine rule-based extraction with vision-language models to handle diverse file layouts, tables, and images. It provides a modular architecture t

This is a Backend-as-a-Service SDK for React Native, providing a library to integrate mobile applications with backend services. It serves as a client for managing user authentication, cloud databases, and remote file storage within a mobile environment. The SDK enables mobile developers to implement secure login flows using OAuth, email, and phone verification. It includes a database client for performing CRUD operations on structured data and a storage client for uploading and retrieving binary assets from remote cloud buckets. Additionally, it features a WebSocket-based interface to receiv