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Environment Variables

Manage runtime configuration via environment variables on a web service.

Last updated: June 19, 2026

Environment Variables

Open the service's Environment tab to manage variables. Each variable is a key-value pair.

  • + Add Variable: add a new variable.
  • Upload .env: import multiple variables from a .env file.

New values take effect after the next redeploy.

Secret Variables

For sensitive values like API keys or passwords, the same Environment tab also has Secret variables. They work like regular variables, but their values are hidden in the UI by default and only shown when you click to reveal them.

  • Add Secret: add a new secret.

As with environment variables, new values take effect after the next redeploy.

Service Networking

Reach other services in the same project under their service names, without exposing anything publicly.

Storage

Attach a persistent volume to keep state across restarts and redeploys.