mirrord
Telepresence
Gefyra
Codezero
Railway
Coolify
OrbStack
Bunnyshell
React Engine
mirrord is an open-source tool that runs any process, on a developer's machine or in an AI agent's environment, as if it were a pod in a remote Kubernetes cluster. The process sees the cluster's real env vars, DNS, network, and (optionally) inbound traffic, so engineers and coding agents work against the cluster's real services from the first line of code, without deploying.
AI coding agents (Claude Code, Cursor, Codex) use mirrord through the official skills bundle (https://github.com/metalbear-co/skills) to run and verify the code they generate against real infrastructure instead of mocks. Customers include monday.com (350+ engineers on a single shared staging cluster), SurveyMonkey, Daylight Security, Cadence, CoLab, and zooplus.
Open source under MIT; the commercial mirrord Operator adds team-scale features like concurrent steal-with-filter, RBAC, database branching, and Kafka queue splitting.
mirrord React EngineI can debug my code on my machine while it's accessing resources on my k8s cluster.
mirrord is super easy to get started with and works out of the box on any deployment.
Based on our record, mirrord seems to be a lot more popular than React Engine. While we know about 14 links to mirrord, we've tracked only 1 mention of React Engine. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If attaching to unmodified workloads via a node-level agent sounds like mirrord, it should โ that approach is the one mirrord is built around, and it is a good one. With 2.30, Telepresence offers both styles. The two tools still differ substantially in architecture โ Telepresence connects your whole workstation at the network level, mirrord links a single process at the syscall level โ and we maintain a detailed,... - Source: dev.to / about 1 month ago
Have a new entry on mirrord (https://mirrord.dev/) and how it mirrors a process from your local machine to Kubernetes. In this post I particularly talk about the mirrord agent but in the subsequent one, I will also be discussing about the tools you need to employ if you had to make this possible for yourself. Mirrord mirrors (and can steal) traffic from your Kubernetes environment to a local process which is the... - Source: Hacker News / almost 2 years ago
For more details check out the documentation on the mirrord website along with the code repository I created to demonstrate mirrod's features. - Source: dev.to / almost 2 years ago
Mirrord lets you run a local process in the context of a cloud service, which means we can test our code on our staging cluster without actually deploying it there. This leads to shorter feedback loops (you donโt have to wait on long CI processes to test your code in staging conditions) and a more stable staging environment (since untested services arenโt being deployed there). There is a detailed overview of... - Source: dev.to / about 2 years ago
So, you've been using mirrord to simplify your development process (if you havenโt, go here!). Naturally, you want the traffic from the app you're debugging to go through the cluster environment, so your app can communicate with its clustery pals. There is a problem though: your latest change adds some new columns to the database, and you donโt want to modify the database in the cluster and affect everyone else... - Source: dev.to / over 2 years ago
I was wondering to use paypal's React Engine (https://github.com/paypal/react-engine), but I have some doubts:. Source: over 4 years ago
Telepresence - Telepresence is an open source tool that lets you develop and debug your Kubernetes services...
Gefyra - Gefyra enables blazingly-fast, rock-solid, local application development with Kubernetes.
Codezero - Collaborative Local Microservices Development
Railway - Made for any language, for projects big and small.
Coolify - An open-source, hassle-free, self-hostable Heroku & Netlify alternative.
OrbStack - Fast, light, simple Docker & Linux on macOS