Скачать или смотреть 9.Kubernetes Services Explained | ClusterIP, NodePort, LoadBalancer with Examples

In this video, we'll dive deep into Kubernetes Services, one of the fundamental components for managing networking within your cluster. Kubernetes services enable communication between various parts of your application and external users, ensuring seamless interaction between microservices.

What You'll Learn:
What are Kubernetes Services?
A brief introduction to services and their importance.
Types of Kubernetes Services:
ClusterIP: For internal communication within the cluster.
NodePort: Exposing services on a static port on each node.
LoadBalancer: Exposing services externally via a cloud provider.
Practical Examples:
ClusterIP Service: Communicate between pods within the cluster.
Example: Exposing an internal database to application pods.
NodePort Service: Access your application from outside the cluster.
Example: Exposing a web application on a specific port.
LoadBalancer Service: Set up automatic external load balancing.

1. ClusterIP Service
This is the default type and exposes the service on a cluster-internal IP.


apiVersion: v1
kind: Service
metadata:
name: clusterip-service
labels:
app: my-app
spec:
type: ClusterIP
selector:
app: my-app
ports:
protocol: TCP
port: 80
targetPort: 8080
2. NodePort Service
This service exposes the application on a static port on each node in the cluster.


apiVersion: v1
kind: Service
metadata:
name: nodeport-service
labels:
app: my-app
spec:
type: NodePort
selector:
app: my-app
ports:
protocol: TCP
port: 80
targetPort: 8080
nodePort: 30007 # Optional, otherwise assigned by Kubernetes
3. LoadBalancer Service
This exposes the service externally using a cloud provider's load balancer.


apiVersion: v1
kind: Service
metadata:
name: loadbalancer-service
labels:
app: my-app
spec:
type: LoadBalancer
selector:
app: my-app
ports:
protocol: TCP
port: 80
targetPort: 8080

Demo & Lab: Watch a hands-on demo where we create and manage different types of services.
Whether you're new to Kubernetes or looking to solidify your understanding of services, this video has got you covered with real-world examples and step-by-step guidance.

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