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Introduction to Kubernetes • Definition:Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. • Why it matters: Designed to manage complex microservices architectures across distributed environments. • Visual: Simple architecture diagram of Kubernetes with master and worker nodes. www.visualpath.in +91-7032290546
Core Components of Kubernetes • Key Components: • Pod – Smallest deployable unit. • Node – A worker machine. • Cluster – A set of nodes managed by Kubernetes. • Kubelet, API Server, Scheduler, etc. • Visual: Component relationship diagram. www.visualpath.in +91-7032290546
What is Reliability in Systems? • Definition: The ability of a system to consistently perform its intended function. • Key elements: • Uptime and availability • Fault tolerance • Self-healing • Scalability • Visual: Pillars of reliability diagram (Availability, Scalability, Recovery, Monitoring) www.visualpath.in +91-7032290546
How Kubernetes Supports Reliability – Self-Healing • Features: • Automatically restarts failed containers. • Replaces and reschedules containers on failed nodes. • Kills containers that don’t respond to health checks. • Impact: Minimizes downtime and ensures service continuity. • Visual: Animated flow of failed pod getting replaced. www.visualpath.in +91-7032290546
Scalability and Load Balancing • Auto-scaling: Based on CPU/memory usage or custom metrics. • Load balancing: Distributes traffic across healthy pods. • Horizontal Pod Autoscaler (HPA) • Visual: Diagram of load balancing and autoscaling process. www.visualpath.in +91-7032290546
High Availability & Rolling Updates • HA: Deploy applications across multiple nodes and zones. • Rolling Updates: Deploy new versions without downtime. • Rollback: Revert to the previous version in case of failure. • Visual: Timeline showing a rolling update vs downtime. www.visualpath.in +91-7032290546
Monitoring and Observability • Built-in support for monitoring tools: • Prometheus, Grafana, Fluentd, ELK stack • Logging and Metrics: Enable alerting, performance monitoring. • Visual: Stack diagram of Kubernetes + Monitoring Tools www.visualpath.in +91-7032290546
Summary & Takeaways • Kubernetes enhances system reliability through: • Self-healing • Automated scaling • High availability • Seamless updates • Real-time monitoring • Quote: “Kubernetes isn’t just about running containers, it’s about running resilient systems.” • CTA: Explore Kubernetes in action with real-world case studies or labs. www.visualpath.in +91-7032290546
For More Information About Site Reliability Engineering (SRE) Address:- Flat no: 205, 2nd Floor, Nilgiri Block, Aditya Enclave, Ameerpet, Hyderabad-16 Ph. No: +91-998997107 Visit: www.visualpath.in E-Mail: online@visualpath.in www.visualpath.in +91-7032290546
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