Question 1

How to add latency to HTTP responses with Muxy?

Accepted Answer

Use the Delay middleware in your config.yml, setting response_delay in milliseconds. For example, add a 5-second delay by specifying response_delay: 5000 and running Muxy as a proxy for your target service.

Question 2

Muxy vs Toxiproxy for TCP chaos engineering?

Accepted Answer

Muxy offers broader layer coverage (L4, L5, L7) with HTTP tampering and extensible plugins, while Toxiproxy is simpler but focused on TCP. Choose Muxy for multi-layer simulations or Toxiproxy for lightweight TCP-only scenarios.

Question 3

How to integrate Muxy with Docker Compose?

Accepted Answer

Use the official Docker image, mount your config.yml as a volume, and run it as a privileged container to allow network shaping. The README provides a Docker run example that can be adapted for Compose definitions.

Question 4

Can Muxy simulate packet loss for mobile app testing?

Accepted Answer

Yes, use the Network Shaper middleware to set packet_loss as a percentage in the config. This operates at Layer 4, allowing you to target specific IPs and ports to mimic unreliable network conditions.

Question 5

Does Muxy support SSL/TLS termination for HTTPS proxies?

Accepted Answer

Yes, the HTTP Proxy configuration allows specifying SSL keys and certificates for both server and client sides, enabling secure proxy setups with optional insecure mode for testing untrusted targets.

Question 6

How to create custom middleware in Muxy?

Accepted Answer

Implement the Middleware interface from the codebase, register it via PluginFactories, and add it to your config. The README points to the HTTP Delay symptom as an example for extending functionality.

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