Deploying Windows Containers on Windows Server 2016
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This document discusses deploying Docker containers on Windows Server 2016. It provides an introduction to Docker and containers, explains how containers work on Windows, and demonstrates how to deploy common applications like IIS and ASP.NET within Windows containers. It also covers building Windows-based Docker images, running containers in production, and the future of containers on Windows platforms.
![PS C:> docker run -it
--name iisbase
windowsservercore cmd
[iisbase] C:>
Thank you to https://msdn.microsoft.com/en-
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Deploying Windows Containers on Windows Server 2016
- 1. Deploying Docker Containers on Windows Server 2016 @Ben_Hall [email protected] OcelotUproar.com / Katacoda.com
- 2. @Ben_Hall / Blog.BenHall.me.uk Tech Support > Tester > Developer > Founder Software Development Studio WHOAMI?
- 4. Agenda • Introduction to Docker • Windows Containers • Deploying IIS / ASP.NET with Containers • Running containers in Production • Future
- 5. doger.io
- 8. Own Process Space Own Network Interface Own Root Directories Sandboxed Like a lightweight VM. But it’s not a VM.
- 9. Native CPU Native Memory Native IO No Pre-Allocation No Performance Overheard
- 10. Milliseconds to launch Still fully isolated
- 11. Docker - An open platform for distributed applications for developers and sysadmins.
- 12. Got us to agree on something!
- 14. Batteries included but removable
- 15. Linux cgroups & namespaces
- 17. > docker run –p 6379:6379 redis _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.0.3 (00000000/0) 64 bit .-`` .-```. ```/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6379 | `-._ `._ / _.-' | PID: 1 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 1:M 05 Nov 10:42:24.402 # Server started, Redis version 3.0.3 1:M 05 Nov 10:42:24.402 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect. 1:M 05 Nov 10:42:24.402 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled. 1:M 05 Nov 10:42:24.403 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 1:M 05 Nov 10:42:24.403 * The server is now ready to accept connections on port 6379
- 18. RStudio > docker run -d -p 8787:8787 rocker/rstudio
- 19. Windows?
- 20. Windows Server 2016 • Currently TP4 • TP5 is coming “very soon” • RTM in Q3ish
- 22. Windows Containers Windows Kernel Windows Server 2016 SQL Server MSMQ IIS / ASP.NET Docker Engine
- 23. Windows Hyper-V Containers Windows Kernel Windows Server 2016 SQL Server MSMQ IIS / ASP.NET Windows Kernel Windows Server 2016 Hyper-V Docker Engine
- 25. Windows Server Core • Nearly Win32 Compatiable • Same behaviour of Windows • Install all of the same tooling
- 26. Windows Nano • Stripped down • Smallest footprint • 1/20th the size of Windows Server Core • Only essential components – Hyper-V, Clustering, Networking, Storage, .Net, Core CLR
- 27. Windows Server Core => Ubuntu Linux Windows Nano => Alpine Linux Windows Server Core => Legacy Apps? Windows Nano => Modern Apps?
- 28. Work In Progress • https://msdn.microsoft.com/en- us/virtualization/windowscontainers/about/w ork_in_progress • eg: Windows Containers cannot be managed/interacted with through a RDP session in TP4.
- 30. C:> Install-WindowsFeature containers C:> wget https://aka.ms/tp4/docker -OutFile $env:SystemRootsystem32docker.exe C:> start-process nssm install
- 33. Microsoft
- 34. Windows Linux Subsystem • Completely unrelated • Maybe not in the future…
- 35. What is a Windows Docker Image?
- 36. PS C:> docker images REPOSITORY TAG IMAGE ID CREATED windowsservercore 10.0.10586.0 6801d964fda5 2 weeks ago windowsservercore latest 6801d964fda5 2 weeks ago nanoserver 10.0.10586.0 8572198a60f1 2 weeks ago nanoserver latest 8572198a60f1 2 weeks ago
- 37. PS C:> docker run -it windowsservercore cmd C:> dir Users Program Files Windows etc Thank you to https://msdn.microsoft.com/en- us/virtualization/windowscontainers/quick_start/manage_docker
- 38. Building Windows based Docker Images
- 39. PS C:> docker run -it --name iisbase windowsservercore cmd [iisbase] C:> Thank you to https://msdn.microsoft.com/en- us/virtualization/windowscontainers/quick_start/manage_docker
- 40. PS C:> docker run -it --name iisbase windowsservercore cmd C:> powershell.exe Install-WindowsFeature web-server C:> exit PS C:> docker commit iisbase windowsservercoreiis 4193c9f34e320c4e2c52ec52550df225b2243927ed21f014fbfff3f 29474b090
- 42. PS C:> docker run -it --name iisdemo -p 80:80 windowsservercoreiis cmd
- 43. docker commit is an anti-pattern Use a Dockerfile
- 44. C:docker-iis> type Dockerfile FROM windowsservercore:10.0.10586 RUN dism /online /enable-feature /all /featurename:iis-webserver /NoRestart
- 45. C:>docker build –t iis:10 c:docker-iis C:> docker images REPOSITORY TAG IMAGE ID CREATED iis 10 as4w9c928829 9 seconds ago windowsservercore 10.0.10586.0 6801d964fda5 2 weeks ago windowsservercore latest 6801d964fda5 2 weeks ago nanoserver 10.0.10586.0 8572198a60f1 2 weeks ago nanoserver latest 8572198a60f1 2 weeks ago
- 46. C:SourceCodeApp> type Dockerfile RUN echo "Hello World - Dockerfile" > c:inetpubwwwrootindex.html
- 47. C:SourceCode> docker build –t app . PS C:> docker images REPOSITORY TAG IMAGE ID CREATED app latest k23jjin423d 1 minutes ago iis 10 as4w9c928829 9 minutes ago windowsservercore 10.0.10586.0 6801d964fda5 2 weeks ago windowsservercore latest 6801d964fda5 2 weeks ago nanoserver 10.0.10586.0 8572198a60f1 2 weeks ago nanoserver latest 8572198a60f1 2 weeks ago
- 48. PS C:> docker run –name -it -p 80:80 app cmd
- 49. PS C:> docker run –name -it -p 80:80 -- isolation=hyperv app cmd
- 50. Building Windows Nano image? • Wait until TP5 > docker run --name iisnanobase -it -v c:share:c:iisinstall - -isolation=hyperv nanoserver cmd > docker commit iisnanobase nanoserveriis
- 52. Simplification of deployments via automation
- 53. Jenkins •Builds Docker Image Testing QA Production Build Lifecycle
- 54. Powershell API PS C:> Get-ContainerImage Name Publisher Version IsOSImage ---- --------- ------- --------- NanoServer CN=Microsoft 10.0.10584.1000 True WindowsServerCore CN=Microsoft 10.0.10584.1000 True
- 55. PS C:> New-Container -ContainerImageName WindowsServerCore -Name demo - ContainerComputerName demo Name State Uptime ParentImageName ---- ----- ------ --------------- demo Off 00:00:00 WindowsServerCore
- 56. Persisting Data > docker run –v <host-dir>:<container-dir> image -v /opt/docker/elasticsearch:/data -v /opt/docker/mysql:/var/lib/mysql -v /docker/scrapbook/uploads:/app/public/uploads -v $(PWD):/host -v /var/log/syslog:/var/log/syslog
- 57. Users and Domains • Local user accounts may be created and used for running Windows services and applications in containers • Containers cannot join Active Directory domains, and cannot run services or applications as domain users, service accounts, or machine accounts. • "Microsoft are actively looking at solutions to support these types of scenarios."
- 58. Difference to Docker on Linux
- 59. Docker Images will behave as expected • Linux Manifest • Windows Manifest • ARM Manifest • Future IoT thing Manifest • docker pull redis – Image pulled depends on Docker Engine
- 60. What’s happening under the covers?
- 61. Linux / Windows • Linux has cgroups and namespaces – cgroups – How much access/resources do I have? – namespaces – What can I see? • Windows wanted this in the Kernel • Prototype was called Drawbridge • Server 2016 Kernel brings in the new cgroups/namespaces • Microsoft reached out to Docker to partner
- 63. Security?
- 70. Mesosphere DC/OS Powering Azure Container Service
- 71. Host Fingerprinting • Constraints based deployment • Container is based on Nano Server, within cluster, deploy to server capable of running Nano Server (ie. Windows Server 2016)
- 72. The Future?
- 74. SQL Server as a Container
- 75. Visual Studio as a Container?
- 76. Everything as a Container
- 77. Deploy Anywhere
- 79. www.katacoda.com
- 81. Summary • Docker and Containers have changed how Linux processes are managed • Real container support coming to Windows Kernel • Automation will be easier • Better ROI and cluster management