Docker from basics to orchestration (PHPConfBr2015)

Talk given at PHP conference Brasil 2015 about Docker

Transcript

1. Docker From basics to orchestration
2. Credits Special thanks to all the people who made and released these awesome resources for free: ◎ Presentation template by SlidesCarnival ◎ Photographs by Unsplash & Death to the Stock Photo (license) ◎ Dark wood background by The pattern library
3. About Me
4. Overview
5. Overview ◎ Environment Issues ◎ Virtualization ◎ LXC ◎ Docker ◦ features ◦ demo ◎ Machine ◎ Orchestration ◦ tools ◦ demo ◎ Swarm ◦ demo ◎ Q&A
6. Environment Issues
7. Environment Issues ◎ substr vs mb_substr functions
8. Environment Issues ◎ substr vs mb_substr functions ◎ short open tags: <?=
9. Environment Issues ◎ substr vs mb_substr functions ◎ short open tags: <?= ◎ syntax changes between versions: array(); e [];
10. Environment Issues ◎ substr vs mb_substr functions ◎ short open tags: <?= ◎ syntax changes between versions: array(); e []; ◎ extensions that we forget to install in production: php-memcached, redis, amqp, etc.
11. Environment Issues ◎ substr vs mb_substr functions ◎ short open tags: <?= ◎ syntax changes between versions: array(); e []; ◎ extensions that we forget to install in production: php-memcached, redis, amqp, etc. ◎ different upload file settings in different servers
14. Virtualization
15. ◎ 1960 - inspired by cpu time sharing Virtualization - History
16. ◎ 1960 - inspired by cpu time sharing ◎ IBM 370 - First instructions to support software virtualization, CP/CMS allow running more than one instance simultaneously Virtualization - History
17. ◎ 1960 - inspired by cpu time sharing ◎ IBM 370 - First instructions to support software virtualization, CP/CMS allow running more than one instance simultaneously ◎ IBM z/VM - First success case, all hardware were virtualized Virtualization - History
18. ◎ 1960 - inspired by cpu time sharing ◎ IBM 370 - First instructions to support software virtualization, CP/CMS allow running more than one instance simultaneously ◎ IBM z/VM - First success case, all hardware were virtualized ◎ until nineties only client/server applications Virtualization - History
19. ◎ 1960 - inspired by cpu time sharing ◎ IBM 370 - First instructions to support software virtualization, CP/CMS allow running more than one instance simultaneously ◎ IBM z/VM - First success case, all hardware were virtualized ◎ until nineties only client/server applications ◎ 2000+ - CPUs with virtualization support, hypervisors: VMWare, Xen, KVM, VirtualBox, etc Virtualization - History
20. Virtualization - Hypervisors
21. Virtualization - Stack
22. ◎ Standard environment Virtualization - Pros & Cons
23. ◎ Standard environment ◎ Improve resources utilization Virtualization - Pros & Cons
24. ◎ Standard environment ◎ Improve resources utilization ◎ Easy data recovery Virtualization - Pros & Cons
25. ◎ Standard environment ◎ Improve resources utilization ◎ Easy data recovery ◎ If host fails all VMs crashes together Virtualization - Pros & Cons
26. ◎ Standard environment ◎ Improve resources utilization ◎ Easy data recovery Virtualization - Pros & Cons ◎ If host fails all VMs crashes together ◎ Troubleshooting more difficult
27. ◎ Standard environment ◎ Improve resources utilization ◎ Easy data recovery Virtualization - Pros & Cons ◎ If host fails all VMs crashes together ◎ Troubleshooting more difficult ◎ Increase overhead
28. LXC - Linux Containers
29. LXC - Linux Containers ◎ Exists since Jul/2008 - Kernel 2.6.26+
30. LXC - Linux Containers ◎ Exists since Jul/2008 - Kernel 2.6.26+ ◎ Process isolation
31. LXC - Linux Containers ◎ Exists since Jul/2008 - Kernel 2.6.26+ ◎ Process isolation ◎ Network isolation
32. LXC - Linux Containers ◎ Exists since Jul/2008 - Kernel 2.6.26+ ◎ Process isolation ◎ Network isolation ◎ Memory limitation
33. LXC - Linux Containers ◎ Exists since Jul/2008 - Kernel 2.6.26+ ◎ Process isolation ◎ Network isolation ◎ Memory limitation ◎ File system isolation
34. LXC - Pros & Cons ◎ Good resources isolation
35. LXC - Pros & Cons ◎ Good resources isolation ◎ Run as a process, a single PID is created
36. LXC - Pros & Cons ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel)
37. LXC - Pros & Cons ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel) ◎ Starts much more faster than VMs
38. LXC - Pros & Cons ◎ Volume share are difficult to do ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel) ◎ Starts much more faster than VMs
39. LXC - Pros & Cons ◎ Volume share are difficult to do ◎ Architecture failure may lead to chroot attack ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel) ◎ Starts much more faster than VMs
40. LXC - Pros & Cons ◎ Volume share are difficult to do ◎ Architecture failure may lead to chroot attack ◎ IO overhead ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel) ◎ Starts much more faster than VMs
41. LXC - Pros & Cons ◎ Volume share are difficult to do ◎ Architecture failure may lead to chroot attack ◎ IO overhead ◎ Run on Linux hosts only ◎ Good resources isolation ◎ Run as a process, a single PID is created ◎ Reuse host resources (libs, kernel) ◎ Starts much more faster than VMs
42. DOCKER
43. Docker
44. Docker Doki =>
48. ◎ Portable Docker - Features
49. ◎ Portable ◎ Versionable Docker - Features
50. ◎ Portable ◎ Versionable ◎ Reusable Docker - Features
51. ◎ Portable ◎ Versionable ◎ Reusable ◎ Copy-on-write Docker - Features
52. ◎ Portable ◎ Versionable ◎ Reusable ◎ Copy-on-write ◎ Logging Docker - Features
53. ◎ Portable ◎ Versionable ◎ Reusable ◎ Copy-on-write ◎ Logging ◎ Image change management Docker - Features
54. ◎ Portable ◎ Versionable ◎ Reusable ◎ Copy-on-write ◎ Logging ◎ Image change management ◎ Automatic build Docker - Features
55. ◎ Portable ◎ Versionable ◎ Reusable ◎ Copy-on-write ◎ Logging ◎ Image change management ◎ Automatic build ◎ Easy to share Docker - Features
56. Docker - Features ◎ Private and public registry
57. Docker - Features ◎ Private and public registry ◎ Server-client architecture
58. Docker - Features ◎ Private and public registry ◎ Server-client architecture ◎ Client consume engine API
59. Docker - Features ◎ Private and public registry ◎ Server-client architecture ◎ Client consume engine API ◎ Orchestration tools (compose, swarm,volume networks)
60. Docker - Features ◎ Private and public registry ◎ Server-client architecture ◎ Client consume engine API ◎ Orchestration tools (compose, swarm,volume networks) ◎ Always innovating
61. Docker - VM Comparison
62. Docker - Quick Tips ◎ It is a container not a VM
63. Docker - Quick Tips ◎ It is a container not a VM ◎ Container images are like VM boxes
64. Docker - Quick Tips ◎ It is a container not a VM ◎ Container images are like VM boxes ◎ Images are state, container runs it
65. Docker - Install ◎ Follow instructions for your OS in http://docs. docker.com/installation
66. Docker - Install ◎ Follow instructions for your OS in http://docs. docker.com/installation ◎ Several distros supported
67. Docker - Install ◎ Follow instructions for your OS in http://docs. docker.com/installation ◎ Several distros supported ◎ Mac OS X and Windows needs a VM to act like a Docker host - Boot2docker
68. Docker - Install ◎ Follow instructions for your OS in http://docs. docker.com/installation ◎ Several distros supported ◎ Mac OS X and Windows needs a VM to act like a Docker host - Boot2docker ◎ There is roadmap to run Linux container on FreeBSD host
69. Docker - Install ◎ Follow instructions for your OS in http://docs. docker.com/installation ◎ Several distros supported ◎ Mac OS X and Windows needs a VM to act like a Docker host - Boot2docker ◎ There is roadmap to run Linux container on FreeBSD host ◎ Windows containers running on Windows hosts will be available on Windows Server 2016
70. Docker - Beggining ◎ run ◎ pull ◎ commit ◎ push ◎ exec ◎ ps ◎ images ◎ inspect ◎ rm ◎ rmi
71. “ Talk is cheap, show me the code. Linus Torvalds “
72. pull commit push Docker - Images Dockerfile
73. Docker - Improving ◎ Volume ◦ list, create, inspect ◎ Port expose and port mapping ◎ Links between containers ◎ Network ◦ list, create,inspect, connect
74. Second Demo
75. Docker - Machine ◎ Creates virtual machines ready to run docker locally or on the cloud. ◎ drivers available: ◦ Amazon Web Services, Microsoft Azure, Digital Ocean, Exoscale, Google Compute Engine, Microsoft Hyper-V, OpenStack, Rackspace, IBM Softlayer, Oracle VirtualBox, VMware vCloud Air, VMware Fusion, VMware vSphere and Generic
76. Docker - Orchestration ◎ Docker Compose (Old FIG)
77. Docker - Orchestration ◎ Docker Compose (Old FIG)
78. Docker - Orchestration ◎ Docker Compose (Old FIG)
79. Docker - Orchestration ◎ Docker Compose (Old FIG) ◦ Config file: docker-compose.yml ◦ Run: docker-compose up
80. Docker - Orchestration ◎ Docker Compose (Old FIG) ◦ Config file: docker-compose.yml ◦ Run: docker-compose up ◎ Crane - http://getcrane.com ◦ Config file: crane.json or crane.yaml ◦ Run: crane lift
81. Docker - Orchestration ◎ Docker Compose (Old FIG) ◦ Config file: docker-compose.yml ◦ Run: docker-compose up ◎ Crane - http://getcrane.com ◦ Config file: crane.json or crane.yaml ◦ Run: crane lift ◎ AZK - http://www.azk.io ◦ Config file: Azkfile.js ◦ Run: `azk agent start` and then `azk start`
82. Third Demo
83. Docker - Orchestration ◎ Docker Swarm ◦ Orchestrate docker hosts ◦ supports schedulers and node discovery services
84. Last Demo
85. Docker - Comming ◎ User namespaces ◎ Open Containers Initiative - by Linux Foundation: https://www.opencontainers.org/
86. Voucher: php_conf2015 Q&A Slides http://bit.ly/phpconfbr2015