Dify Environment Variable Documentation

Before Starting

Read these shared guides:

1. writing-guides/style-guide.md
2. writing-guides/formatting-guide.md
3. writing-guides/glossary.md

Source of Truth: docker/.env.example + docker/envs/**/*.env.example

After Dify PR #31586, the supported self-host knob surface is split across:

• docker/.env.example — essential startup values
• docker/envs/**/*.env.example — categorized optional vars (core-services, databases, infrastructure, security, vectorstores, middleware)

The verifier reads both. Pass --env-example docker/.env.example --env-example docker/envs (the second arg is a directory; the verifier globs **/*.env.example recursively).