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Why I use Ingress Controllers to expose Kubernetes services

Submitted by Roy Schestowitz on Monday 3rd of August 2020 10:59:10 AM Filed under
Server

The meteoric rise of containerization and microservices has been necessary to meet the growing demand for applications, but getting it right means overcoming some critical network orchestration challenges. Out of the complexities that developers of cloud-native applications face, strategically utilizing Kubernetes ingress controllers is among the most difficult components to understand—and among the most important.

Before diving into ingress controllers, you need to understand why networking is so important to developer workflows.

It is common for development teams to create backend API services to enable connectivity for external applications and users. In early development phases, teams often use implementations of container environments on local development machines, which more simply rely on direct container invocations through Docker Compose or similar local orchestrators for access.

However, when the time comes to shift to a shared development or staging environment and match the configuration that will be used in production, these direct-access stopgaps are no longer sufficient. The access patterns often assume trusted access, which can't be assumed in production, or they rely on static values that are likely to change in a cloud infrastructure.

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