High-Availability

Keycloak High Availability involves setting up multiple Keycloak instances to ensure continuous availability and reliability of identity management services. This setup helps prevent downtime and ensures that your applications can continue to authenticate and authorize users even if one instance fails. What is Keycloak Clustering? Keycloak clustering is the process of running multiple Keycloak servers that share the same configuration and data. This allows for load distribution, failover, and scalability. In a clustered setup, all nodes communicate with each other to keep their state synchronized. ...

Visual Overview: graph TB subgraph "Microservices Authentication" Client[Client] --> Gateway[API Gateway] Gateway --> Auth[Auth Service] Auth --> TokenStore[(Token Store)] Gateway --> ServiceA[Service A] Gateway --> ServiceB[Service B] Gateway --> ServiceC[Service C] ServiceA --> ServiceB ServiceB --> ServiceC end style Gateway fill:#667eea,color:#fff style Auth fill:#764ba2,color:#fff In today’s fast-paced digital environment, deploying Java microservices on Kubernetes has become a cornerstone for building scalable, resilient, and efficient applications. This guide will walk you through the process of deploying highly available Java microservices on Kubernetes, ensuring your applications are robust and capable of handling increased traffic and potential failures. ...

Visual Overview: graph LR subgraph JWT Token A[Header] --> B[Payload] --> C[Signature] end A --> D["{ alg: RS256, typ: JWT }"] B --> E["{ sub, iss, exp, iat, ... }"] C --> F["HMACSHA256(base64(header) + base64(payload), secret)"] style A fill:#667eea,color:#fff style B fill:#764ba2,color:#fff style C fill:#f093fb,color:#fff In the modern era of cloud-native applications and microservices architectures, the need for scalable, secure, and efficient authorization systems has never been greater. An Authorization Server (AS) plays a critical role in enforcing access control policies, issuing tokens, and managing user sessions. However, as the scale of applications grows, the traditional monolithic approach to building an Authorization Server becomes a bottleneck. This is where a distributed architecture comes into play, enabling high availability, scalability, and fault tolerance. ...