Day 2 Kubernetes - Tools for Operability (Velocity London Meetup)
- 1. @bridgetkromhout #velocityconf day 2 k8s tools for operability
- 3. @bridgetkromhout #velocityconf Outline 1.what even are containers & k8s? 2.tools in the k8s ecosystem 3.the future
- 4. @bridgetkromhout #velocityconf Spoilers 1.what even are containers & k8s? 2.tools in the k8s ecosystem 3.the future
- 5. @bridgetkromhout #velocityconf what even are containers & k8s? “And you may ask yourself, ‘Well... how did I get here?’” Talking Heads — Once in a Lifetime
- 7. @bridgetkromhout #velocityconf Namespaces Cgroups Not a real thing. An application delivery mechanism with process isolation based on several Linux kernel features. • PID • Mount • Network • UTS • IPC • User • Cgroup • Memory • CPU • Blkio • Cpuacct • Cpuset • Devices • Net_prio • Freezer (what a process can see) (what a process can use) What is a container?
- 8. @bridgetkromhout #velocityconf consistent development repeatable deployment containers solve problems
- 9. containers solve problems @bridgetkromhout #velocityconf don’t all
- 10. @bridgetkromhout #velocityconf once upon a time…
- 11. @bridgetkromhout #velocityconf 1979 (Version 7) 1982 (BSD) 20042000 chroot FreeBSD jails Solaris Zones LXC 2008 containers: early days
- 12. @bridgetkromhout #velocityconf containers: becoming mainstream 2011 Cloud Foundry 2013 Docker 2014 Rocket (later rkt) 2015 OCI
- 13. @bridgetkromhout #velocityconf “Kubernetes is an open-source platform designed to automate deploying, scaling, and operating application containers." Initial release: 7 June 2014
- 14. @bridgetkromhout #velocityconf orchestrating containers: a tool, not a goal
- 15. @bridgetkromhout #velocityconf tools in the k8s ecosystem “If you are confused, check with the sun Carry a compass to help you along” R.E.M. — Stand
- 16. @bridgetkromhout #velocityconf Image credit: James Ernest
- 17. @bridgetkromhout #velocityconf elements of orchestration Scheduling Affinity/ anti-affinity Health monitoring Failover Scaling Networking Service discovery Coordinated app upgrades
- 18. @bridgetkromhout #velocityconf Portable Public, private, hybrid, multi-cloud Extensible Modular, pluggable, hookable, composable Self-healing Auto-placement, auto-restart, auto-replication, auto-scaling Kubernetes: a choice for orchestration
- 22. @bridgetkromhout #velocityconf Deploy your applications quickly and predictably Scale your applications on the fly Roll out new features seamlessly Limit hardware usage to required resources Kubernetes: empowering you to do more
- 23. @bridgetkromhout #velocityconf “day 2 k8s” - what do we mean? 1.You’re sold on k8s; what’s next? 2.necessarily opinionated… 3.…yet giving you info to decide.
- 24. @bridgetkromhout #velocityconf operable k8s: next steps -Getting started with Terraform & AKS -Managing configs with Helm & apps with Draft -Event-driven scripting with Brigade & Kashti
- 25. @bridgetkromhout #velocityconf Simplify the deployment, management, and operations of Kubernetes Work how you want with open- source APIs Scale and run applications with confidence Focus on your containers not the infrastructure Azure Kubernetes Service (AKS)
- 26. @bridgetkromhout #velocityconf Get started easily $ az aks create -g myResourceGroup -n myCluster --generate-ssh-keys Running .. $ az aks install-cli Downloading client to /usr/local/bin/kubectl .. $ az aks get-credentials -g myResourceGroup -n myCluster Merged "myCluster" as current context .. $ kubectl get nodes NAME STATUS AGE VERSION aks-mycluster-36851231-0 Ready 4m v1.8.1 aks-mycluster-36851231-1 Ready 4m v1.8.1 aks-mycluster-36851231-2 Ready 4m v1.8.1 Azure Kubernetes Service (AKS)
- 27. @bridgetkromhout #velocityconf Manage an AKS cluster $ az aks list –o table Name Location ResourceGroup KubernetesRelease ProvisioningState ------------------ ---------- -------------- ------------------- ------------------- myCluster westus2 myResourceGroup 1.7.7 Succeeded $ az aks upgrade -g myResourceGroup -n myCluster –-kubernetes-version 1.8.1 Running .. $ kubectl get nodes NAME STATUS AGE VERSION aks-mycluster-36851231-0 Ready 12m v1.8.1 aks-mycluster-36851231-1 Ready 8m v1.8.1 aks-mycluster-36851231-2 Ready 3m v1.8.1 $ az aks scale -g myResourceGroup -n myCluster --agent-count 10 Running .. Azure Kubernetes Service (AKS)
- 29. @bridgetkromhout #velocityconf Find, share, and use software built for k8s Manage complexity Easy updates Simple sharing Rollbacks Helm
- 30. @bridgetkromhout #velocityconf Simple app development and deployment – into any Kubernetes cluster Simplified development Using two simple commands, developers can now begin hacking on container-based applications without requiring Docker or even installing Kubernetes themselves Language support Draft detects which language your app is written in, and then uses packs to generate a Dockerfile and Helm Chart with the best practices for that language Draft
- 31. @bridgetkromhout #velocityconf Run scriptable, automated tasks in the cloud — as part of your Kubernetes cluster Simple, powerful pipes Each project gets a brigade.js config file, which is where you can write dynamic, interwoven pipelines and tasks for your Kubernetes cluster Runs inside your cluster By running Brigade as a service inside your Kubernetes cluster, you can harness the power of millions of available Docker images Brigade
- 32. @bridgetkromhout #velocityconf A simple UI to display build results and logs Simple visualizations A web dashboard for Brigade, helping to easily visualize and inspect your Brigade builds Driving deep insights Make Brigade DevOps workflows— projects, scripts, and jobs—and their events visible instantly Kashti
- 33. @bridgetkromhout #velocityconf the future “What’s next?” Jed Bartlet, The West Wing
- 34. @bridgetkromhout #velocityconf “Day Two Is Forever” Forever Forever Forever Forever Forever flickr.com/photos/sirtrentalot/3195464062/ (CC BY 2.0)
- 35. @bridgetkromhout #velocityconf winter is coming (k8s getting real)
- 36. @bridgetkromhout #velocityconf …but consider managed k8s! (aka choose-your-own-complexity) check out container.training…
- 37. @bridgetkromhout #velocityconf sweetcode.io/a-first-look-at-the-helm-3-plan Helm 3 changes include… •deprecating tiller •libraries, schematized values, and ext directory in charts •lifecycle events •embedded Lua engine for scripting event handlers •Release and release version Secret objects •new Helm Controller project for pull-based workflows github.com/helm/community/blob/master/helm-v3/000-helm-v3.md
- 41. @bridgetkromhout #velocityconf …change is the only constant.
- 43. @bridgetkromhout #velocityconf Terraform on Azure docs.microsoft.com/azure/terraform Azure Free Trial azure.com/free Helm helm.sh Microsoft Ignite: The Tour microsoft.com/ignite-the-tour Microsoft Learn docs.microsoft.com/learn To learn more…
- 44. @bridgetkromhout #velocityconf Terraform on Azure docs.microsoft.com/azure/terraform Azure Free Trial azure.com/free Helm helm.sh Microsoft Ignite: The Tour microsoft.com/ignite-the-tour Microsoft Learn docs.microsoft.com/learn Thanks!