You deploy a new internal app. It runs perfectly until someone asks for single sign-on with Google Workspace. Suddenly you are deep in documentation on OAuth scopes, redirect URIs, and that one misaligned JSON key that keeps breaking your flow. A simple proxy just got personal.
Caddy Google Workspace integration sounds exotic, but it is one of the most practical setups for small ops teams who value predictable, identity-aware access. Caddy serves as an adaptable web server and reverse proxy with built-in HTTPS, while Google Workspace provides your user directory and OAuth identity. Together, they become a portable access layer that keeps workloads isolated yet reachable to the right people.
The basic logic goes like this. Caddy handles inbound traffic and proxies protected routes only after verifying a valid Google identity token. Google Workspace acts as the authority, issuing that token after the user authenticates through the normal company account login. Once validated, Caddy passes requests upstream with headers that contain verified user info, often name and email. That means no fragile cookies across services or homegrown session logic that collapses under load.
For teams building internal dashboards, CI/CD viewers, or preview environments, this pairing feels clean and predictable. It removes the burden of managing credentials for every new microservice. Instead, access control stays centralized around Google Groups or Workspace Org Units, which map directly to roles in Caddy’s config.
A few best practices keep things smooth:
- Align Caddy’s OAuth client with the same redirect URI each time to avoid token mismatches.
- Rotate client secrets on a schedule, the same way you rotate API keys.
- Use least privilege by granting only the scopes you actually need, usually
openidandemail. - Watch logs for “token exchange” errors, the first sign that your consent screen or credentials changed upstream.
Teams that get this right enjoy fast onboarding and zero-touch deprovisioning. Add or remove a user from Google Workspace, and their access propagates through every Caddy-proxied service within minutes.