Talk on PHP Day Uruguay about Docker
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The document discusses Docker, a containerization platform. It begins with an overview of environment issues, virtualization history and containers like LXC. It then covers Docker in depth, highlighting its features like copy-on-write filesystems, image management and easy sharing. Docker is compared favorably to virtual machines for its speed, small size and efficient resource use. Instructions are provided for installing Docker and using basic commands. Finally, related tools like Docker Machine, Compose and Swarm are listed along with additional resources.
![Environment Issues
Examples:
● substr vs mb_substr functions
● short open tag <?=
● short array syntax (5.3- vs 5.4+): $a=[];](https://image.slidesharecdn.com/talkphpdayuy-150823031630-lva1-app6891/85/Talk-on-PHP-Day-Uruguay-about-Docker-9-320.jpg)
![Environment Issues
Examples:
● substr vs mb_substr functions
● short open tag <?=
● short array syntax (5.3- vs 5.4+): $a=[];
● some custom installed extension on dev but
not on prod](https://image.slidesharecdn.com/talkphpdayuy-150823031630-lva1-app6891/85/Talk-on-PHP-Day-Uruguay-about-Docker-10-320.jpg)
Talk on PHP Day Uruguay about Docker
- 1. Docker From basics to orchestration
- 2. About me
- 3. Overview
- 4. Overview ● Environment issues ● Virtualization ● "Containerization" ● Docker ○ Install ○ Run ○ Build ○ Host ● Docker Machine ● Docker Compose ● Questions
- 6. If you do this, you don't receive your: Environment Issues
- 7. Examples: ● substr vs mb_substr functions Environment Issues
- 8. Environment Issues Examples: ● substr vs mb_substr functions ● short open tag <?=
- 9. Environment Issues Examples: ● substr vs mb_substr functions ● short open tag <?= ● short array syntax (5.3- vs 5.4+): $a=[];
- 10. Environment Issues Examples: ● substr vs mb_substr functions ● short open tag <?= ● short array syntax (5.3- vs 5.4+): $a=[]; ● some custom installed extension on dev but not on prod
- 11. Virtualization
- 12. ● 1960 - cpu time sharing (inspiration) Virtualization - History
- 13. Virtualization - History ● 1960 - cpu time sharing (inspiration) ● IBM 370 - Designed for virtualization via software (CP/CMS).
- 14. Virtualization - History ● 1960 - cpu time sharing (inspiration) ● IBM 370 - Designed for virtualization via software (CP/CMS). ● IBM z/VM - first success case (via hardware)
- 15. Virtualization - History ● 1960 - cpu time sharing (inspiration) ● IBM 370 - Designed for virtualization via software (CP/CMS). ● IBM z/VM - first success case (via hardware) ● 1990+ - Hypervisors: VMWare, Xen, KVM, VirtualBox, etc...
- 19. Virtualization ● Standard environments ● Improve resources usage
- 20. Virtualization ● Standard environments ● Improve resources usage ● Data recovery
- 21. Virtualization ● If host hardware fails every VMs fail ● Standard environments ● Improve resources usage ● Data recovery
- 22. Virtualization ● If host hardware fails every VMs fail ● Difficult troubleshooting ● Standard environments ● Improve resources usage ● Data recovery
- 23. Virtualization ● If host hardware fails every VMs fail ● Difficult troubleshooting ● New layer = Some Overhead ● Standard environments ● Improve resources usage ● Data recovery
- 24. Containers - LXC ● Since Jul/2008 - Kernel 2.6.26+
- 25. ● Since Jul/2008 - Kernel 2.6.26+ ● lxc-create, lxc- start, lxc-stop Containers - LXC
- 26. Containers - LXC ● Since Jul/2008 - Kernel 2.6.26+ ● lxc-create, lxc- start, lxc-stop ● Shares kernel libs and binaries with host
- 27. ● Process isolation - 1 Linux PID (chroot) Containers - LXC
- 28. Containers - LXC ● Process isolation - 1 Linux PID (chroot) ● Network isolation
- 29. Containers - LXC ● Process isolation - 1 Linux PID (chroot) ● Network isolation ● Define memory limitation
- 30. Containers - LXC ● Process isolation - 1 Linux PID (chroot) ● Network isolation ● Define memory limitation ● IO overhead - difficult to share host volumes with guests
- 31. Docker
- 32. Docker
- 33. Docker
- 34. ● Copy on write (AUFS) Docker
- 35. ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) Docker
- 36. ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) ● Change management (imgs) Docker
- 37. ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) ● Change management (imgs) ● Automatic build (Dockerfile) Docker
- 38. ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) ● Change management (imgs) ● Automatic build (Dockerfile) ● Reusable (FROM: imagename) Docker
- 39. ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) ● Change management (imgs) ● Automatic build (Dockerfile) ● Reusable (FROM: imagename) ● Easy to share (registry - docker hub) Docker
- 40. Docker ● Copy on write (AUFS) ● Logging (stdout, stderr, stdin) ● Change management (imgs) ● Automatic build (Dockerfile) ● Reusable (FROM: imagename) ● Easy to share (registry - docker hub) ● Private and public registry
- 41. ● API layer (REST) Docker
- 42. Docker ● API layer (REST) ● Fast innovations (compose, machine, swarm, network)
- 43. Docker Awesome
- 45. Docker - Comparison ● Start realy fast
- 46. Docker - Comparison ● Start realy fast ● Smaller images
- 47. Docker - Comparison ● Start realy fast ● Smaller images ● Easy replication
- 48. Docker - Comparison ● Start realy fast ● Smaller images ● Easy replication ● Better resources utilization
- 49. Docker - Comparison ● Start realy fast ● Smaller images ● Easy replication ● Better resources utilization ● IO overhead
- 50. Docker - Comparison ● Start realy fast ● Smaller images ● Easy replication ● Better resources utilization ● IO overhead ● Not too isolated
- 51. Docker - Comparison ● Start realy fast ● Smaller images ● Easy replication ● Better resources utilization ● IO overhead ● Not too isolated ● Linux ONLY
- 52. Docker - Quick Tips ● It's Container not a VM
- 53. Docker - Quick Tips ● It's Container not a VM ● Why container - because it solves cargo transport matrix
- 54. Docker - Quick Tips ● It's Container not a VM ● Why container - because it solves cargo transport matrix ● Why docker, because of docks
- 55. Docker - Quick Tips ● It's Container not a VM ● Why container - because it solves cargo transport matrix ● Why docker, because of docks ● Images are states, Containers runs it
- 57. ● Go http://docs.docker.com/installation ● Find you host OS Docker - Install
- 58. ● Go http://docs.docker.com/installation ● Find you host OS ● Follow the instructions Docker - Install
- 59. ● Go http://docs.docker.com/installation ● Find you host OS ● Follow the instructions ● FreeBSD hosts will be supported soon Docker - Install
- 60. ● Go http://docs.docker.com/installation ● Find you host OS ● Follow the instructions ● FreeBSD hosts will be supported soon ● MacOS and Windows needs a VM to act as a Host - boot2docker sugested Docker - Install
- 61. Docker - Basics "Talk is cheap, show me the code." Linus Torvalds
- 62. ● Volume sharing ● Port expose/mapping ● Links between containers Docker - Medium
- 63. Docker Machine Creates virtual machines ready to run docker locally or on the cloud.
- 64. ● Docker Compose (Old FIG) https://docs. docker.com/compose/install/ ● Crane - http://getcrane.com ● AZK - http://azk.io Orchestration
- 65. Docker Compose
- 66. Docker Compose
- 67. ● Docker Swarm Docker - Other Cool Stuff
- 68. ● Docker Swarm ● Docker Network Docker - Other Cool Stuff
- 69. ● Docker Swarm ● Docker Network ● OpenContainers - Linux Foundation Docker - Other Cool Stuff