Securing Microservices with Keycloak and OAuth2

Modern microservice architectures require robust security, but managing user identities across multiple distributed services can quickly become complex. This course teaches you how to implement centralized Identity and Access Management (IAM) using Keycloak, an industry-standard open-source solution. You will transition from understanding basic security concepts to designing and implementing secure token-based authentication and authorization flows. Through clear written explanations and step-by-step configuration scenarios, you will learn how to protect APIs, manage user sessions, and apply modern zero-trust security patterns to your services. What you'll learn: Understand the foundational concepts of IAM, OAuth2, and OpenID Connect (OIDC); Configure Keycloak realms, clients, users, and roles for secure access control; Implement Single Sign-On (SSO) and token-based authentication for microservice architectures; Secure API endpoints using JSON Web Tokens (JWTs) and stateless authorization; Apply modern security best practices, including PKCE and zero-trust communication patterns. The course starts with essential security terminology and OAuth2 protocols before guiding you through Keycloak configurations and architectural patterns for securing inter-service communication. This course is designed for software developers, system architects, and DevOps professionals who are new to Keycloak and microservices security, with no prior experience in identity management required. Start reading today to build a secure foundation for your distributed applications.