Supercharge Local Development with Docker

Transcript

1. Supercharge Local Development with Docker
2. I’m Reyhan Sofian Haqqi Engineering Manager @ Kata.ai Follow me: @reyhan_sofian https://facebook.com/reyhansofian
3. Overview - Introduction to Vagrant - Introduction to Docker - Docker Architecture - Docker for Local Development
4. Introduction to Vagrant
5. /introduction-to-vagrant 2010
6. Vagrant is a tool for building and managing virtual machine environments in a single workflow /introduction-to-vagrant it’s Vagrantfile
7. Easy to configure, reproducible, and portable work environments built on top VM /introduction-to-vagrant
8. credits: https://www.softqubes.com/blog/introduction-of-vagrant-development/ /introduction-to-vagrant
9. Pros /introduction-to-vagrant
10. Single workflow for all projects /introduction-to-vagrant run vagrant up and you’re ready
11. /introduction-to-vagrant Synced folder share your local folders to VM easily
12. Vast library of community-contributed “boxes” /introduction-to-vagrant e.g. Laravel Homestead
13. /introduction-to-vagrant
14. Cons /introduction-to-vagrant
15. VM can take a chunk of resources /introduction-to-vagrant typical VirtualBox VM reserve ~4GB memory
16. Dependencies update /introduction-to-vagrant updating deps from Vagrantfile need to spawn new VM to reflect it
17. Provisioning takes a couple minutes /introduction-to-vagrant depends on your provisioner’s tasks
18. Introduction to Docker
19. /introduction-to-docker Brief History
20. /introduction-to-docker 2013
21. /introduction-to-docker What is Docker?
22. Docker is about containerization /introduction-to-docker
23. /introduction-to-docker
24. /introduction-to-docker
25. /introduction-to-docker Containers are about isolations it’s an abstraction at the app layer that packages code and dependencies together
26. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
27. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
28. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
29. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
30. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
31. /introduction-to-docker credits: https://www.quora.com/What-is-Docker-and-what-are-the-advantages/answer/Anjali-Nair-324
32. Docker Architecture
33. Docker uses a client-server architecture /docker-architecture
34. /docker-architecture credits: https://docs.docker.com/engine/docker-overview/#docker-architecture
35. /docker-architecture credits: https://docs.docker.com/engine/docker-overview/#docker-architecture
36. /docker-architecture credits: https://www.researchgate.net/figure/A-comparison-of-the-architecture-of-virtual-machines-and-Docker-software_fig4_299771559
37. /docker-architecture Important terms in Docker world
38. Dockerfile /docker-architecture it’s a text document that contains all the commands a user could call on the command line to assemble an image
39. Docker Image /docker-architecture it’s a read-only template with instructions for creating a Docker container
40. Docker Container /docker-architecture it’s a runnable instance of an image
41. Docker Network /docker-architecture so container can communicate with host or another container
42. /docker-architecture confuse yet?
43. /docker-architecture In short…
44. /docker-architecture Dockerfile Docker Image Docker Container
45. Docker for Local Dev
46. Let’s define a use case first /docker-for-local-dev
47. /docker-for-local-dev service A
48. /docker-for-local-dev service A MySQL
49. /docker-for-local-dev service A service B MySQL
50. /docker-for-local-dev service A service B service C MySQL
51. /docker-for-local-dev service A service B service C Redis MySQL
52. /docker-for-local-dev service A MySQL service B service C Redis RabbitMQ
53. /docker-for-local-dev
54. /docker-for-local-dev
55. Docker Compose feat Docker Volume /docker-for-local-dev
56. Docker Compose lets you run all your services at once /docker-for-local-dev in the right order manage it via unified interface (docker-compose.yml)
57. Docker Volume lets you share your code into container /docker-for-local-dev
58. /docker-for-local-dev version: '3' services: <service_name_1>: build: <path_to_docker_file_of_service> command: <start_command_to_run> environment: - <env_var_1>=<env_val_1> - <env_var_2>=<env_val_2> ports: - '<port_inside_container>:<port_of_host_machine>' working_dir: <path_inside_the_docker_container_where_command_should_run> volumes: - <path_on_machine>:<path_inside_the_docker_container> <service_name_2>: .... .... ....
59. This combo is awesome! /docker-for-local-dev
60. But there are catches… /docker-for-local-dev
61. High battery consumption /docker-for-local-dev compared to run develop on host
62. Sometimes live-reload doesn’t work /docker-for-local-dev be patience and be ready to restart your container
63. Docker sync is slow on Mac /docker-for-local-dev can be cured!
64. Slower shell command execution /docker-for-local-dev need to run inside container
65. /docker-for-local-dev
66. Run the code on your machine /docker-for-local-dev not on container
67. Use container for other stuffs /docker-for-local-dev e.g. database, message queue, caching server
68. Automate everything to achieve efficiency /docker-for-local-dev tips: LernaJS can be useful to run your code
69. That’s all, folks! Thanks!
70. References: - Docker volumes explained (https://bit.ly/39OPBQ8) - Docker for local dev tutorial (https://bit.ly/2wvTiMc) - Docker for local dev is probably not a great idea (https://bit.ly/3bThOqz) - How Docker on Mac works (https://bit.ly/2SFbnA4) - Fix Docker sync on Mac issue (https://bit.ly/2HEg8Dy) - Docker as development machine (https://bit.ly/2V7yBQL)