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      Practical Kubernetes Networking: How to Use Kubernetes Services to Expose Your App


      How to Join

      This Tech Talk is free and open to everyone. Register below to get a link to join the live stream or receive the video recording after it airs.

      Date Time RSVP
      September 22, 2021 11 a.m.–12 p.m. ET / 3–4 p.m. GMT

      About the Talk

      You’ve deployed an application and a few microservices into your Kubernetes cluster and now you’re wondering how to configure the workloads so that they communicate with one another, and more importantly, how to expose your application to the internet. This talk will show you how to use Kubernetes Services to enable communication between your workloads and how to configure your application so it can accept traffic from the internet.

      What You’ll Learn

      • The difference between the kinds of Kubernetes Services
      • How to use the ClusterIP service to enable internal communication between workloads
      • How to use the LoadBalancer service to expose an application so it is reachable from the internet

      This Talk Is Designed For

      • Anyone running containerized workloads in a non-Kubernetes environment
      • Anyone looking to gradually migrate to Kubernetes
      • Anyone interested in how Kubernetes microservices communicate with one another

      Prerequisites

      • You have containerized an application or microservice
      • You have basic knowledge of containers and Kubernetes
      • You are familiar with Kubernetes Deployments

      Resources

      Kubernetes Docs: Services
      Networking Best Practices To Power Your Kubernetes Deployment
      Using a Service to Expose Your App

      Kubernetes in minutes, on DigitalOcean

      DigitalOcean Kubernetes (DOKS) is a managed Kubernetes service that lets you deploy Kubernetes clusters without the complexities of handling the control plane and containerized infrastructure. Clusters are compatible with standard Kubernetes toolchains and integrate natively with DigitalOcean Load Balancers and block storage volumes.

      DigitalOcean Kubernetes is designed for you and your small business. Start small at just $10 per month, and scale up and save with our free control plane and inexpensive bandwidth.



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      Networking Best Practices To Power Your Kubernetes Deployment


      Video

      About the Talk

      In the cloud-native era, networking plays a vital role for businesses to offer reliable services to their customers. A typical application in Kubernetes runs multiple microservices that interconnect with each other and leverage multiple networking resources.

      In this session, DigitalOcean engineers discuss choosing the right networking configuration for your business and walk through common setups and lessons learned when creating an efficient and secure application.

      What You’ll Learn

      • How to secure and isolate your network using DigitalOcean Kubernetes
      • How to ingress external traffic — getting traffic from external clients into your cluster reliably
      • Benefits and trade-offs of different routing strategies

      Resources

      Slides

      DOKS docs

      DOKS quickstart

      Kubernetes in minutes, on DigitalOcean

      DigitalOcean Kubernetes (DOKS) is a managed Kubernetes service that lets you deploy Kubernetes clusters without the complexities of handling the control plane and containerized infrastructure. Clusters are compatible with standard Kubernetes toolchains and integrate natively with DigitalOcean Load Balancers and block storage volumes.

      DigitalOcean Kubernetes is designed for you and your small business. Start small at just $10 per month, and scale up and save with our free control plane and inexpensive bandwidth.

      Presenters

      Timo Reimann, Senior Software Engineer, DigitalOcean
      Timo Reimann is a Senior Software Engineer responsible for the Managed Kubernetes product who has been working with Kubernetes and other container orchestrator systems for more than 5 years. He is an active member of the Kubernetes community and co-maintains some of the team’s open source projects, including DigitalOcean cloud controller manager and CSI driver.

      Varsha Varadarajan, Software Engineer, DigitalOcean
      Varsha Varadarajan is a software engineer on the containers team with 3+ years of experience working on Kubernetes. We develop and manage the DOKS ecosystem for DO customers. I like working on Kubernetes related projects and building highly performant services.



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      How to Leverage Go for Your Networking Needs


      Video

      About the Talk

      This session highlights Sneha Inguva’s networking journey through Go. She discusses the useful packages, key learnings, and struggles faced while building a variety of networking services within and outside of DigitalOcean. Walk away with a clear understanding of how to specifically leverage Go for your own networking needs.

      What You’ll Learn

      • How to leverage Go’s net package and several open-source packages to build common networking primitives such as load balancers, port scanners, and DHCP servers
      • Go’s packages for leveraging various connections (Unix sockets, raw sockets, and packet sockets) to send packets or frames
      • Networking protocols used by the aforementioned services
      • Concurrency benefits of Go and struggles of testing networking services

      Resources

      Sneha’s Networking Journey Through Go

      “My foray into Go began a few years ago when I started working at DigitalOcean. While building an abstraction layer on top of Kubernetes and familiarizing myself with the language, I began to love it. Syntactically simple, with amazing concurrency primitives and a wonderful community, Go was an excellent choice for a cloud-hosting company with a variety of low-level, server-side microservices.

      Two year ago, however, I joined the software-defined networking team and learned of another application of Go; networking services. The networking team at DigitalOcean uses Go for a variety of purposes — from DHCP servers to IP address management services, to even wrappers around virtual switch tooling. Intrigued, I decided to also investigate how Go could be used to build other services such as port scanners and load-balancers.

      This session highlights my networking journey via Go. I discuss useful packages, key learnings, and even struggles faced while building a variety of networking services within and outside of DigitalOcean. I discuss both relevant packages within the standard library and open-source packages used to implement key network protocols. Through this talk, I hope you gain an understanding of how to specifically leverage Go for your own networking needs.”

      About the Presenter

      Sneha Inguva is a Software Engineer on the networking team at DigitalOcean. She enjoys building cloud products by day and debugging ominous context-cancelled errors by night. Interestingly, her journey through this fantastical field has taken her from casino gaming to 3D printing startups. In her spare time, she professionally lounges about with her cat while WFH.



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