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dgt_k8s07 – Networking

Module Title: dgt_k8s07 – K8S Networking

module Overview

Welcome to dgt_k8s07 – K8S Networking, an advanced module designed for professionals seeking a deep understanding of networking within the Kubernetes ecosystem. This module focuses on the integration and management of various network components, essential for scaling and securing containerized applications.

Key Topics

  • Introduction to Kubernetes Networking: Understand the core concepts and architecture underlying Kubernetes networking.

  • Software Defined Networking SDN: Explore how SDN technologies enhance flexibility, automation, and scalability in cloud environments. Learn about their role in simplifying complex network infrastructures within Kubernetes clusters.

  • Calico Network Policies: Dive into Calicos approach to micro-segmentation and security enforcement through fine-grained policy management. Discover how Calico can be leveraged to secure pod communication across different namespaces.

  • Kubernetes OVN Open Virtual Network: Learn about the OVN architecture and its benefits in Kubernetes networking, including dynamic IP address allocation and seamless multi-cluster communication.

  • Open vSwitch OVS: Understand the functionality of Open vSwitch as a multilayer virtual switch. Explore how OVS supports advanced network functions such as VLANs, load balancing, and traffic shaping within Kubernetes.

  • Pod Addressing: Gain insights into pod IP management strategies in Kubernetes. Learn about the differences between host-local addressing and cluster-wide unique IPs, and their implications on application deployment.

  • Services in Kubernetes: Study the role of services in exposing applications running on a set of Pods as a network service. Explore different types of services ClusterIP, NodePort, LoadBalancer and how they facilitate communication within and outside the cluster.

Learning Outcomes

By the end of this module, participants will be able to:

  • Design and implement robust Kubernetes networking solutions using SDN technologies.
  • Configure and manage Calico for enhanced security policy enforcement in a Kubernetes environment.
  • Deploy and operate OVN to improve network performance and management in Kubernetes clusters.
  • Utilize Open vSwitch features to support complex networking requirements within containerized applications.
  • Effectively address Pods and implement services for efficient application exposure and communication.

Target Audience

This module is ideal for DevOps engineers, system architects, network administrators, and IT professionals who are responsible for managing Kubernetes environments. Prior knowledge of Kubernetes concepts and basic networking principles is recommended to fully benefit from the module content.

Join us on this comprehensive journey through Kubernetes networking, and elevate your skills to effectively manage and optimize containerized application deployments in a cloud-native ecosystem.
The students can push their exercises to the Academy DevOps & SRE GIT project. For this module, create a folder with your username as its name in the following subfolder: https://github.com/Garanti-Del-Talento/gdt_academy