Kubernetes Day 10 – Mastering Services: ClusterIP, NodePort & LoadBalancer Explained скачать в хорошем качестве

Kubernetes Day 10 – Mastering Services: ClusterIP, NodePort & LoadBalancer Explained

✅ What are Kubernetes Services? – Learn why services are essential for providing a stable entry point to multiple pods and enabling load balancing. ✅ Types of Kubernetes Services – Understand ClusterIP, NodePort, and LoadBalancer, their scope, and best use cases. ✅ Hands-On Demos – Create and test ClusterIP, NodePort, and LoadBalancer services with practical YAML examples and connectivity testing. ✅ Key Takeaways for Real-World Use – Choose the right service type for internal communication, testing, or production-grade external access. 🚀 Video Chapters 🚀 Understanding Kubernetes Services** ➥ *0:00* – Introduction to Day 10: Kubernetes Services ➥ *0:06* – Recap of Day 9 (Replica Sets) --- Why Services are Needed** ➥ *1:09* – Problem: Multiple pods need a single entry point for users ➥ *1:48* – Solution: Services act as a load balancer and single point of contact --- Types of Kubernetes Services** ➥ *3:13* – Three service types: 1. *ClusterIP* (Internal communication) 2. *NodePort* (Expose service on node-level port) 3. *LoadBalancer* (Cloud-provided external access) --- 1. ClusterIP Service** ➥ *3:50* – **ClusterIP Overview**: Reachable *only within the cluster* Used for internal communication (e.g., frontend → backend → database) ➥ *7:25* – **Demo**: Create a ReplicaSet (`ecom.yml`) → deploys 5 pods Create ClusterIP service (`cip.yml`) → assigns private IP Test connectivity from a debug pod inside the cluster using `curl ClusterIP:5000` **Limitation**: No external access --- 2. NodePort Service** ➥ *22:14* – **NodePort Overview**: Exposes service on a *static port* (30000–32767) on each node’s IP *Not recommended for production* (manual node IP management) Create NodePort service (`nodeport.yml`) → binds to node IP (e.g., `10.0.0.5:30033`) Accessible via `NodeIP:NodePort` from within the network **Traffic flow**: User → NodeIP:Port → Service → Pods --- 3. LoadBalancer Service** ➥ *31:58* – **LoadBalancer Overview**: Cloud-managed (Azure/AWS/GCP) Automatically assigns *public IP* (or private with annotation) ➥ *33:25* – **Demo**: Public LoadBalancer (`lb.yml`) → assigns external IP Accessible globally via `http://PublicIP` Internal LoadBalancer (`internal-lb.yml`) → assigns private IP Accessible only within the VNet (annotation: `azure-load-balancer-internal: true`) --- Key Takeaways** ➥ *40:04* – **Summary**: | Service | Scope | Use Case | |-------------|-----------------|------------------------------| | *ClusterIP* | Cluster-internal | Frontend/backend communication | | *NodePort* | Node-level | Lab/testing | | *LoadBalancer* | External | Production (public/private) | ➥ *41:45* – Conclusion ✅ 𝗔𝗹𝗹 𝘁𝗵𝗲 𝗰𝗼𝘂𝗿𝘀𝗲 𝗼𝘂𝘁𝗹𝗶𝗻𝗲 𝗵𝗮𝘀 𝗯𝗲𝗲𝗻 𝘂𝗽𝗹𝗼𝗮𝗱𝗲𝗱 𝘁𝗼 𝗺𝘆 𝗚𝗶𝘁𝗵𝘂𝗯 𝗿𝗲𝗽𝗼𝘀𝗶𝘁𝗼𝗿𝘆: https://github.com/akashkumar975/Terr... Connect me Here:👇👇 ⛳ LinkedIn ▶   / akash-kumar-480b3858   ⛳ Udemy_course ▶ https://www.udemy.com/course/terrafor... ⛳ Topmate ▶ https://topmate.io/akashkumar975