All Things Cloud Native Meetup: Azure Kubernetes Service Basics
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Containerized applications have become tremendously important in our everyday life. Learn everything about Kubernetes and how you can run it in the Azure Cloud. In this talk, Nico will explain how Kubernetes works and how it can help to run Containers in production. You will learn everything about Azure Kubernetes Service, Azure Container Registry and Azure Container Instances.
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All Things Cloud Native Meetup: Azure Kubernetes Service Basics
- 1. Containers & Kubernetes on Azure All Things Cloud Native Meetup, May 2020
- 2. Nico Meisenzahl • Senior Cloud & DevOps Consultant at white duck • Microsoft MVP, Docker Community Leader & GitLab Hero • loves Kubernetes, DevOps and Cloud © white duck GmbH 2020 Phone: +49 8031 230159 0 Email: nico.meisenzahl@whiteduck.de Twitter: @nmeisenzahl LinkedIn: https://www.linkedin.com/in/nicomeisenzahl Blog: https://meisenzahl.org
- 3. Agenda • why Kubernetes? • how Kubernetes works • container services on Azure • demo © white duck GmbH 2020
- 4. WHY KUBERNETES? © white duck GmbH 2020
- 5. Where containers can help • isolation • dependencies • scalability • immutability © white duck GmbH 2020
- 6. But … • containers itself are not production-ready • we need to manage, scale and monitor them • examples • scaling container workload across multiple nodes • service discovery and load balancing • self-healing of applications • secret, configuration and storage management © white duck GmbH 2020
- 7. What is Kubernetes? Kubernetes is an open source system for automating deployment, scaling, and management of containerized applications using a declarative approach. © white duck GmbH 2020
- 8. Declarative and self healing • Me: „I would like to run 3 instances of my app.“ • K8s: „Ok, I will run 3 instances and ensure they are always up.“ • K8s: „Oh, one instance died. Let me start another one instead.“ © white duck GmbH 2020
- 9. Kubernetes facts • greek for helmsman/captain • introduced by Google in June 2014 • hosted by Cloud Native Computing Foundation (CNCF) – Microsoft, IBM, RedHat and Docker joined the project six weeks after the first release • third container management tool build by Google – Borg – Omega • Kubernetes is the container orchestration tool © white duck GmbH 2020
- 10. HOW KUBERNETES WORKS © white duck GmbH 2020
- 11. A pod © white duck GmbH 2020
- 12. A deployment © white duck GmbH 2020
- 13. ClusterIP service © white duck GmbH 2020
- 14. NodePort service © white duck GmbH 2020
- 15. LoadBalancer service © white duck GmbH 2020
- 16. Ingress © white duck GmbH 2020
- 17. Big picture © white duck GmbH 2020
- 18. Resource manifests • are defined in YAML or JSON using a declarative approach • needs to be passed to the API server • are verified and processed by the API server © white duck GmbH 2020
- 19. Working with Kubernetes • kubectl • CLI for Windows, MacOS & Linux • get/create/delete resources • get API resources/details • attach to containers • “port-forward” functionality • extendable (Plugins) • Dashboard • Helm, Kustomize, … © white duck GmbH 2020
- 20. CONTAINER SERVICES ON AZURE © white duck GmbH 2020
- 21. Azure Container Registry (ACR) • fully managed and scalable container registry • integrated security • Azure AD • role-based access • supports container builds à no need to build them locally • supports OCI which allows to also store Helm charts • pricing based on service tier and usage (storage, build-time) • integrates with Azure DevOps © white duck GmbH 2020
- 22. Container Image scanning © white duck GmbH 2020
- 23. Geo-replication © white duck GmbH 2020
- 24. Azure Container Instances (ACI) • abstracts everything except your container • Linux, Windows & GPU workload • can be used for • event-driven applications • data processing jobs • can be integrated with AKS via virtual nodes • fast scaling • isolated compute • pay as you go pricing (CPU, memory) © white duck GmbH 2020
- 25. Azure Kubernetes Service (AKS) • fully managed Kubernetes Cluster • scalable and secure by default • runs Linux, Windows and GPU workload • end-to-end developer experience • Azure Dev Spaces, VS Code integration • pricing is based on compute (VM size of worker nodes) • free-of-charge control plane (master nodes) © white duck GmbH 2020
- 26. AKS integrates with • Azure Monitor for monitoring • Azure Policies for governance • Azure Files & Azure Disks for persistent storage • Azure AD for authentication and authorization • Azure Virtual Network for advanced networking • Azure Application Gateway for application ingress security • Azure Key Vault for secret management • Azure DevOps for CI/CD • Azure Portal for easy administration • … © white duck GmbH 2020
- 27. RBAC via Azure AD © white duck GmbH 2020
- 28. Cluster Autoscaler & virtual node © white duck GmbH 2020
- 29. Private Cluster support © white duck GmbH 2020 • expose API Server via Private Link into an internal subnet • expose Services into an internal subnet using internal Load Balancer • access PaaS Services via Private Link Endpoints • Container Registry • Storage Services
- 30. Azure Monitor (Container Insights) © white duck GmbH 2020
- 31. Governance with Azure Policies © white duck GmbH 2020
- 32. Azure Key Vault integration © white duck GmbH 2020
- 33. AAD Pod Identity © white duck GmbH 2020 Node Managed Identity Managed Service Identity
- 34. DEMO © white duck GmbH 2020
- 35. Demo • AKS & ACR in action © white duck GmbH 2020
- 36. Questions? Slides: https://www.slideshare.net/nmeisenzahl Nico Meisenzahl (Senior Cloud & DevOps Consultant) Phone: +49 8031 230159 0 Email: nico.meisenzahl@whiteduck.de Twitter: @nmeisenzahl LinkedIn: https://www.linkedin.com/in/nicomeisenzahl Blog: https://meisenzahl.org © white duck GmbH 2020