Talk on PHP Day Uruguay about Docker

Talk presented on the first PHP Day in Montevideo Uruguay about Docker from the basics to orchestration

Transcript

1. Docker
   From basics to orchestration
   

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2. About me
   

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3. Overview
   

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4. Overview
   ● Environment issues
   ● Virtualization
   ● "Containerization"
   ● Docker
   ○ Install
   ○ Run
   ○ Build
   ○ Host
   ● Docker Machine
   ● Docker Compose
   ● Questions
   

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5. Environment Issues
   

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6. If you do this, you don't receive your:
   Environment Issues
   

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7. Examples:
   ● substr vs mb_substr functions
   Environment Issues
   

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8. Environment Issues
   Examples:
   ● substr vs mb_substr functions
   ● short open tag =
   

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9. Environment Issues
   Examples:
   ● substr vs mb_substr functions
   ● short open tag =
   ● short array syntax (5.3- vs 5.4+): $a=[];
   

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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
    

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11. Virtualization
    

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12. ● 1960 - cpu time sharing (inspiration)
    Virtualization - History
    

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13. Virtualization - History
    ● 1960 - cpu time sharing (inspiration)
    ● IBM 370 - Designed for virtualization via
    software (CP/CMS).
    

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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)
    

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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...
    

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16. Virtualization - Hypervisors
    

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17. Virtualization - Stack
    

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18. Virtualization
    ● Standard
    environments
    

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19. Virtualization
    ● Standard
    environments
    ● Improve resources
    usage
    

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20. Virtualization
    ● Standard
    environments
    ● Improve resources
    usage
    ● Data recovery
    

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21. Virtualization
    ● If host hardware
    fails every VMs fail
    ● Standard
    environments
    ● Improve resources
    usage
    ● Data recovery
    

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22. Virtualization
    ● If host hardware
    fails every VMs fail
    ● Difficult
    troubleshooting
    ● Standard
    environments
    ● Improve resources
    usage
    ● Data recovery
    

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23. Virtualization
    ● If host hardware
    fails every VMs fail
    ● Difficult
    troubleshooting
    ● New layer = Some
    Overhead
    ● Standard
    environments
    ● Improve resources
    usage
    ● Data recovery
    

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24. Containers - LXC
    ● Since Jul/2008 -
    Kernel 2.6.26+
    

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25. ● Since Jul/2008 -
    Kernel 2.6.26+
    ● lxc-create, lxc-
    start, lxc-stop
    Containers - LXC
    

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26. Containers - LXC
    ● Since Jul/2008 -
    Kernel 2.6.26+
    ● lxc-create, lxc-
    start, lxc-stop
    ● Shares kernel libs
    and binaries with
    host
    

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27. ● Process isolation - 1 Linux PID (chroot)
    Containers - LXC
    

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28. Containers - LXC
    ● Process isolation - 1 Linux PID (chroot)
    ● Network isolation
    

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29. Containers - LXC
    ● Process isolation - 1 Linux PID (chroot)
    ● Network isolation
    ● Define memory limitation
    

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30. Containers - LXC
    ● Process isolation - 1 Linux PID (chroot)
    ● Network isolation
    ● Define memory limitation
    ● IO overhead - difficult to share host
    volumes with guests
    

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31. Docker
    

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32. Docker
    

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33. Docker
    

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34. ● Copy on write (AUFS)
    Docker
    

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35. ● Copy on write (AUFS)
    ● Logging (stdout, stderr, stdin)
    Docker
    

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36. ● Copy on write (AUFS)
    ● Logging (stdout, stderr, stdin)
    ● Change management (imgs)
    Docker
    

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37. ● Copy on write (AUFS)
    ● Logging (stdout, stderr, stdin)
    ● Change management (imgs)
    ● Automatic build (Dockerfile)
    Docker
    

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38. ● Copy on write (AUFS)
    ● Logging (stdout, stderr, stdin)
    ● Change management (imgs)
    ● Automatic build (Dockerfile)
    ● Reusable (FROM: imagename)
    Docker
    

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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
    

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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
    

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41. ● API layer (REST)
    Docker
    

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42. Docker
    ● API layer (REST)
    ● Fast innovations (compose, machine,
    swarm, network)
    

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43. Docker
    Awesome
    

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44. Docker - Comparison
    

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45. Docker - Comparison
    ● Start realy fast
    

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46. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    

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47. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    ● Easy replication
    

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48. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    ● Easy replication
    ● Better resources
    utilization
    

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49. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    ● Easy replication
    ● Better resources
    utilization
    ● IO overhead
    

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50. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    ● Easy replication
    ● Better resources
    utilization
    ● IO overhead
    ● Not too isolated
    

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51. Docker - Comparison
    ● Start realy fast
    ● Smaller images
    ● Easy replication
    ● Better resources
    utilization
    ● IO overhead
    ● Not too isolated
    ● Linux ONLY
    

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52. Docker - Quick Tips
    ● It's Container not a VM
    

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53. Docker - Quick Tips
    ● It's Container not a VM
    ● Why container - because it solves cargo
    transport matrix
    

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54. Docker - Quick Tips
    ● It's Container not a VM
    ● Why container - because it solves cargo
    transport matrix
    ● Why docker, because of docks
    

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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
    

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56. ● Go http://docs.docker.com/installation
    Docker - Install
    

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57. ● Go http://docs.docker.com/installation
    ● Find you host OS
    Docker - Install
    

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58. ● Go http://docs.docker.com/installation
    ● Find you host OS
    ● Follow the instructions
    Docker - Install
    

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59. ● Go http://docs.docker.com/installation
    ● Find you host OS
    ● Follow the instructions
    ● FreeBSD hosts will be supported soon
    Docker - Install
    

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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
    

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61. Docker - Basics
    "Talk is cheap, show me the code."
    Linus Torvalds
    

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62. ● Volume sharing
    ● Port expose/mapping
    ● Links between containers
    Docker - Medium
    

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63. Docker Machine
    Creates virtual machines ready to run docker
    locally or on the cloud.
    

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64. ● Docker Compose (Old FIG) https://docs.
    docker.com/compose/install/
    ● Crane - http://getcrane.com
    ● AZK - http://azk.io
    Orchestration
    

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65. Docker Compose
    

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66. Docker Compose
    

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67. ● Docker Swarm
    Docker - Other Cool Stuff
    

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68. ● Docker Swarm
    ● Docker Network
    Docker - Other Cool Stuff
    

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69. ● Docker Swarm
    ● Docker Network
    ● OpenContainers - Linux Foundation
    Docker - Other Cool Stuff
    

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70. Slides
    Questions
    Evaluation
    

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