You are tasked with implementing a Single Sign-On (SSO) solution using OAuth2 and JWT in a microservices architecture. How would you approach designing and implementing the SSO solution?
- Implement OAuth2 and JWT separately in each microservice to ensure independence.
- Implement a centralized OAuth2 and JWT service that manages SSO for all microservices.
- Use a combination of OAuth2 and OpenID Connect (OIDC) for SSO, with each microservice managing its own JWTs.
- Implement SAML-based SSO for simplicity and ease of integration in a microservices architecture.
In a microservices architecture, a centralized approach (option 2) for implementing SSO with OAuth2 and JWT is recommended. This centralization ensures uniformity and ease of management across all microservices. Implementing OAuth2 and JWT separately (option 1) could lead to inconsistency and complexity. While OAuth2 and OIDC (option 3) can be used together, they might not provide the same simplicity as a centralized solution. SAML-based SSO (option 4) is an alternative but may not be the best fit for a microservices setup.
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