Managing multiple applications can be complex, especially when it comes to ensuring secure API integrations. IBM Cloud Kubernetes now offers API integrations through the user interface (UI), making it easier to manage your applications and improve visibility. This article provides an overview of Ingress, explains how to configure a multi-tenant microservices environment, and highlights the steps to follow in the UI to leverage these integrations.

An Overview of Ingress

Ingress is a key component of directing traffic to the right applications in a secure manner. When clients send requests to an endpoint, the traffic is directed to the respective load balancer, which then forwards the requests to the Ingress controller. The requests undergo request termination using a transport layer security (TLS) secret and are then distributed across the available service pods. IBM Cloud Kubernetes offers managed integrations for Ingress, including Domains, Ingress Controller Application Load Balancers (ALB), and Secrets for securely storing TLS certificates and secrets.

Configuring a Multi-Tenant Microservices Environment in IBM Cloud

To illustrate the configuration process, let’s consider a scenario where you need to set up a multi-tenant environment on IBM Cloud for a new product built on a microservices architecture. You’ll be using an Ingress Controller, specifically an ALB, as the API gateway for your team’s requirements. The article provides detailed steps on how to set up the domain, configure ALBs, manage secrets, and test the API endpoint. It also highlights the importance of monitoring ALB traffic for informed scaling decisions.

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Summary

The IBM Cloud Kubernetes UI now offers API integrations for managing applications and improving visibility. Ingress components play a crucial role in directing traffic securely. This article walks you through the steps to configure a multi-tenant microservices environment using Ingress in the UI, including setting up domains, managing ALBs, and securing secrets. Monitoring ALB traffic is also highlighted as a key practice for scaling decisions.

FAQs

What is Ingress in Kubernetes?

Ingress is a Kubernetes resource that allows external traffic to access services within a cluster. It acts as an API gateway, routing and managing inbound traffic to the correct services.

What are the benefits of using Ingress in the UI?

Using Ingress in the UI provides a more user-friendly interface for managing API integrations. It allows for easier configuration and visibility of Ingress components, such as domains, ALBs, and secrets.

How can I monitor ALB traffic?

You can monitor ALB traffic by setting up monitoring tools and services, such as IBM Cloud’s monitoring capabilities. These tools provide insights into the load and traffic on your ALB, helping you make informed decisions for scaling.

Can I use Ingress with multiple applications?

Yes, Ingress can be used to manage multiple applications within a Kubernetes cluster. By configuring different Ingress rules and paths, you can direct traffic to the appropriate services based on the requested endpoints.

How can I secure my TLS certificates and secrets?

Ingress allows you to securely store TLS certificates and secrets using the Secrets component. These sensitive data are encrypted and can only be accessed by authorized users and services.

(Source: IBM Blog)