Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.
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OpenTofu lets you declaratively manage your cloud infrastructure.
Declarative Continuous Deployment for Kubernetes
Open Policy Agent (OPA) is an open source, general-purpose policy engine.
- opa
- policy
- declarative
- json
A declarative JavaScript library for application development using cloud services.
Fast, Declarative, Reproducible, and Composable Developer Environments using Nix
- developer-tools
- devenv
- nix
🔧 pyinfra turns Python code into shell commands and runs them on your servers. Execute ad-hoc commands and write declarative operations. Target SSH servers, local machine and Docker containers. Fast and scales from one server to thousands.
- python
- cloud-management
- configuration-management
- remote-execution
PostgreSQL cloud native High Availability and more.
- postgresql
- high-availability
- golang
- kubernetes
Self-hostable workflow orchestrator for teams whose main work isn't orchestration. Declarative YAML over your scripts, SSH commands, containers, etc; keep workflows separate from business logic. One binary, no database, runs on limited H/W resources. Alternative to Airflow / Cron / Job Scheduler.
- cron
- workflow-engine
- workflow-scheduler
- workflow-orchestration
KrakenD Community Edition: High-performance, stateless, declarative, API Gateway written in Go.
- api-gateway
- microservices
- backend-services
- reverse-proxy
In-memory and distributed caching toolkit for Elixir.
- cache
- distributed
- ecto
- elixir
Declarative Intent Driven Platform Orchestrator for Internal Developer Platform (IDP).
- cloud-native
- devops
- kubernetes
- platform-engineering
A Kubernetes operator for declarative database schema management (gitops for database schemas)
- database-schema
- database-management
- kubernetes
- kubernetes-operator
A Declarative Update Policy Engine
- gitops
- continuous-updates
- hacktoberfest
- dependency-manager
Deployment platform for teams to deploy internal tools. Deploy web apps declaratively, on a single-node or on Kubernetes, with OIDC/SAML auth and RBAC.
- golang
- htmx
- starlark
- devops-tools
Declarative and reproducible Jupyter environments - powered by Nix
- jupyterlab
- nix
- jupyter
- jupyter-notebooks
Run declarative NixOS containers without full system rebuilds
cheek: a pico-sized declarative job scheduler
- cron
- jobs
- orchestration
- go
state machine which runs code
- golang
- workflows
- state-machine
- actor-model
Goma Gateway – Lightweight, High-Performance API Gateway and Reverse Proxy with declarative config, robust middleware, and support for REST, GraphQL, TCP, UDP, and gRPC.
- api-gateway
- go-proxy
- microservices
- api-management
Multi-agent orchestration & workflow engine. Declarative YAML workflows, LLM coordinator with hub-and-spoke mailboxes, race-safe delivery. One YAML file, one Go binary. Runs on any goai-supported provider.