OpenCloud deployments usually expose identity, file APIs, and sharing endpoints from a single platform. Prioritize OIDC hardening, secret handling, and strict boundary controls between services.
¶ 1) Secure identity and token trust chain
- Integrate OpenID Connect with a hardened IdP.
- Validate issuer, audience, and redirect URL settings exactly.
- Store signing and service secrets in environment-injected secret stores, not in Git.
- Require MFA through the upstream identity provider.
- Publish only the reverse proxy endpoint externally.
- Keep internal service ports and admin endpoints on private networks.
- Enforce HTTPS and HSTS at the edge.
- Apply request body limits and rate limits to upload and auth paths.
- Set strict defaults for public links, passwords, and expiration.
- Limit external sharing to trusted domains where business policy requires it.
- Use separate storage backends for production and test workloads.
- Audit permission inheritance on shared spaces regularly.
¶ 4) Operate with patch and audit discipline
- Track upstream release notes and security fixes for OpenCloud components.
- Centralize logs from proxy, identity provider, and OpenCloud services.
- Back up metadata and storage indexes, then run restore tests.
- OpenCloud documentation: https://docs.opencloud.eu/
- OpenCloud source repository: https://github.com/opencloud-eu/opencloud
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