LXD System Containers [en]

Berlin PHP User Group @bephpug, March 7th, 2017

Transcript

1. Christoph Lühr @chluehr / bePHPug 2017-03-07 LXD System Containers
4. Unicode Character 'HAPPY PERSON RAISING ONE HAND' (U+1F64B)
5. Hosting?
6. Testing?
7. Live Testing?
8. OS Updates?
9. Deployments?
10. Load Balancing?
13. SIN CE 2000
14. Image source: http://www.flickr.com/photos/robby_van_moor/5702589201/ CC BY-ND 2.0
16. (#) Internet
18. (d|t) Digital Transformation
19. https://en.wikipedia.org/wiki/File:Pimcore-logo-2016.svg
20. https://en.wikipedia.org/wiki/File:Pimcore-logo-2016.svg
21. System Container?
22. System? Container
23. Photo: drosen7900 http://www.flickr.com/photos/59691268@N00/26337022226 "The Internet Archive" Via: Photopin License: CC BY-NC-ND-2.0 https://creativecommons.org/licenses/by-nc-nd/2.0/ SERVER!
24. MACHINE CPU, RAM, BIOS/IO ("physical hardware")
25. LINUX / OS Kernel + Userspace (Init, Shells, Tools, Libs)
26. APPLICATION PHP, Mysql, Redis, ... (Daemons, Services & Code)
27. APPLICATION OS KERNEL MACHINE Server Machine "Bare Metal"
28. Virtualization
29. VirtualBox XEN LXD Docker
30. APPLICATION OS KERNEL MACHINE H VirtualBox "Hardware Virtualization"
31. XEN "Paravirtualization" APPLICATION OS KERNEL MACHINE
32. APPLICATION OS KERNEL MACHINE LXD "System Container"
33. APP APP APP LIB LIB LIB KERNEL MACHINE Docker "Application Container"
34. LXD
35. http://design.ubuntu.com/brand/canonical-logo
36. Features • Images • Instant Snapshots • Remotes, Transfer • Space efficient • Disc- / Ram- / CPU Efficiency!
37. LXC CLI LXD Daemon LXC / Net.-Bridge ZFS LXD Components / Architecture
38. C:\>_ LXD Operations LXC local Commands
39. Create Container lxc launch ubuntu:16.04 my-container
40. List Containers lxc list
41. Start Container lxc start my-container
42. Stop Container lxc stop my-container
43. Execute (in) Container lxc exec my-container my-cmd
44. Copy Container lxc copy my-container new-con
45. Rename Container lxc move my-container mynewname
46. Destroy Container lxc delete my-container
47. Snapshots Points in Time Icon made by Madebyoliver from www.flaticon.com is licensed by CC 3.0 BY
48. Create Snapshot lxc snapshot my-container or lxc snapshot my-container my-snap
49. Delete Snapshot lxc delete my-container/snapshot
50. Restore Snapshot lxc restore my-container snapshot
51. Create from Snapshot lxc copy my-container/my-snap \ new-container
52. Space Requirements Icon made by Freepik from www.flaticon.com is licensed by CC 3.0 BY
53. Icon made by Freepik from www.flaticon.com is licensed by CC 3.0 BY 1 LXD Container = 1 GB
54. = ? GB Icon made by Freepik from www.flaticon.com is licensed by CC 3.0 BY
55. = ~1 GB! Icon made by Freepik from www.flaticon.com is licensed by CC 3.0 BY
56. ZFS Copy - on - Write
57. ZFS Copy - on - Write
58. Remotes Image source: http://www.iconarchive.com/show/ios7-icons-by-icons8/Network-Remote-Control-icon.html
59. Start remote Container lxc start my-remote:my-container
60. All CLI remotely! lxc xxxxx my-remote:my-container
61. Copy to Remote lxc copy my-container/my-snap \ my-remote:
62. Recap: Container Spec. remote:my-container/my-snap
63. Demo https://linuxcontainers.org/lxd/try-it/
64. HOSTING
65. HTTP Proxies Exposing Containers
66. Nginx Proxy HTTP Requests LXD Host LXD Container NGINX HTTP Proxy Apache / PHP
67. server { listen 80; server_name www.website.de; location / { proxy_pass http://10.1.1.264:80; client_max_body_size 100M; proxy_connect_timeout 300; proxy_send_timeout 300; proxy_read_timeout 300; send_timeout 300; } }
68. NginX Proxy HTTP Requests LXD Host LXD Container A NGINX HTTP Proxy Apache / PHP LXD Container B Apache / PHP
69. Deployment Strategy blue-green
70. Deployment Strategy blue-green LXD Host LXD Container A NGINX HTTP Proxy Apache / PHP
71. Deployment Strategy blue-green LXD Host LXD Container A NGINX HTTP Proxy Apache / PHP Snapshot copy of A
72. Deployment Strategy blue-green LXD Host LXD Container A NGINX HTTP Proxy Apache / PHP LXD Container B Apache / PHP Testing
73. server { listen 80; server_name www.website.de; set $host_blue 10.31.1.199; set $host_green 10.31.1.4; set $upstream $host_green; # default! if ($http_x_debug = "green") { set $upstream $host_green; } if ($http_x_debug = "blue") { set $upstream $host_blue; } location / { proxy_pass http://$upstream:80; } }
74. Deployment Strategy blue-green LXD Host LXD Container B NGINX HTTP Proxy Apache / PHP LXD Container A Destroyed
75. Deployment Strategy blue-green LXD Host LXD Container B NGINX HTTP Proxy Apache / PHP
76. Image source: http://www.flickr.com/photos/rietje/76566707/ CC BY 2.0
77. Features • VPCs: Networking / Bridges / ... • cgroups (...): Limiting Ressources • Live (State) Migration (experimental) • Nesting: Docker within LXD Containers • Setup: Modern Kernel Features required • OpenStack: Nodes
78. LXD System Containers: Lean & Fast, support Snapshots & Remotes & Transfers
79. Thanks! Questions? Christoph Lühr luehr@r-pentomino.de christoph.luehr@basilicom.de @chluehr Slides license Attribution-NonCommercial-ShareAlike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/
80. Links & References • LXD https://linuxcontainers.org/lxd/