Kubernetes Ingress Load Balancer

A Kubernetes Ingress Load Balancer is a Kubernetes resource that manages external access to services within a Kubernetes cluster. It provides a way to route traffic from outside the cluster to services within the cluster, based on defined rules.

Kubernetes Ingress Components

Here’s a more detailed breakdown:

1. Ingress Resource:
   • An Ingress is an API object that defines the rules for routing external HTTP(S) traffic to the services within a Kubernetes cluster. It allows you to define routes, hosts, paths, and even custom rules to direct traffic appropriately.
   • Ingress resources can manage SSL termination, provide name-based virtual hosting, and implement fanout routing (routing based on URL paths).
2. Ingress Controller:
   • The Ingress Controller is a component that watches for Ingress resources and processes them to implement the specified load balancing and routing rules. 
   • The controller configures the underlying load balancer or proxy to adhere to the rules defined in the Ingress resource.
3. Load Balancing:
   • The Ingress Load Balancer directs incoming requests to the appropriate services based on the Ingress rules. It balances the load across multiple instances of a service, ensuring that traffic is efficiently distributed.
   • It can also handle SSL termination, where HTTPS traffic is terminated at the load balancer, and then HTTP traffic is forwarded to the services within the cluster.

Key Benefits:

• Simplified Traffic Management: Ingress abstracts away the complexities of managing external access and routing rules.
• Scalability: It supports load balancing, which helps distribute traffic evenly across service instances, improving application performance and reliability.
• Security: Ingress can handle SSL/TLS termination, ensuring secure communication between clients and the cluster.