Kubernetes Egress

Kubernetes egress refers to communication that leaves a cluster, from a pod to an external endpoint. Egress traffic can be used to connect to external services such as databases, APIs, and other services that exist outside of the cluster. Pods in a Kubernetes cluster are automatically separated from the external network, which means they cannot establish connections to external services.

When To Use Kubernetes Egress

• The Egress gateway is a network component that lies at the mesh’s boundary and handles egress traffic.
• The term “ingress traffic” describes the flow of data into a cluster from an external endpoint to a pod. Incoming HTTP or HTTPS requests to a Kubernetes cluster are commonly referred to as “ingress traffic,” and an ingress controller usually handles this traffic.
• The traffic that leaves a cluster, from a pod to an external destination, is referred to as egress traffic. Accessing external services, including databases, APIs, and other services that are not part of the cluster, is done via egress traffic.
• A Kubernetes cluster needs both kinds of traffic to operate correctly, and in order to guarantee that the cluster is both safe and accessible, they must be set up and secured appropriately.

Kubernetes is an open-source container orchestration system designed to automate software deployment, scalability, and administration. Kubernetes, ingress and egress are two concepts that refer to how traffic enters and departs a cluster. Ingress in Kubernetes at its most basic. Ingress is the process of directing external traffic into the Kubernetes cluster. In other words, it serves as an entrance point for incoming traffic to the cluster’s services.