Symfony live Paris 2017 :

SensioCloud, Heroku, OpenShift... Aujourd'hui les solutions PaaS se démocratisent. Permettant de déployer une application et tous ses services dans des conteneurs, elles promettent de simplifier la vie des développeurs en gérant l'infrastructure avec le code. Mais, au moment de l'utiliser pour l'une de nos applications, de nombreuses problématiques dont certaines propres à Symfony se sont posées : déploiement continu, 0-downtime, gestion du cache / des mots de passe / de la performance, adaptation journalière aux pics de trafic, etc. Voici comment nous les avons résolues une à une, ce qui a réussi, ce qui a échoué et ce qu'il reste à faire.

Joind.in: https://joind.in/event/symfonylive-paris-2017/dployer-une-app-symfony-dans-un-paas

Links:
- https://pecl.php.net/package/APCu
- http://blog.insight.sensiolabs.com/2014/12/22/making-symfony-bootable-with-dbal-2-5.html
- https://12factor.net/

http://paris2017.live.symfony.com/

Transcript

1. Deploying Symfony on PaaS
2. Who am I? Tristan Darricau Developer at SensioLabs phpBB core contributor @nicofuma Twitter / Github / Gitlab / ...
3. Platform as a Service
4. Challenging
5. Build
6. Secrets (passwords)
7. Database
8. PaaS ?
9. Back to the sources IaaS / CaaS / PaaS / SaaS
10. IaaS Infrastructure as a Service Provides naked virtual machines and ntworking
11. CaaS Container as a Service Boots containers and connects them (swarm)
12. PaaS Platform as a Service Provides networked services (including your application)
13. SaaS Software as a Service
14. PaaS promises
15. Infrastructure as code
16. Automation
18. From Development to Production PAAS DEV PROD QA ... PPRD
19. Let's deploy
20. ftp / rsync ansible / chef / ...
21. Git Push $ git push staging master $ git push production master
24. Build step Every application has to be built buildpack, build script, assemble script... every provider has its own receipe
25. Describe infrastructure infrastructure: db-1: kind: 'database' version: 'mysql:10.0' disk: '10Go' app: kind: 'php' version: '7.1' extensions: - 'apcu' - 'pdo-mysql' scripts: - 'composer install'
27. Building Symfony composer container router translations annotations templates assets ....
29. Tips: composer composer install --no-interaction --prefer-dist \ --no-dev --optimize-autoloader --apcu-autoloader
30. Local, shared, in-memory cache Free performance boost https://pecl.php.net/package/APCu Tips: APCU
31. But... passwords?
32. Passwords hardcoded parameters: ... database_user: "my_user" database_password: "my_password" ... Who wants to commit passwords ?
33. Use "secret" parameters.yml file Still not ideal... Inject / build parameters.yml on runtime Not always possible
34. Environment variables parameters: ... env(DATABASE_USER): "default_username" env(DATABASE_PASSWORD): "default_password" ... doctrine: ... user: "%env(DATABASE_USER)%" password: "%env(DATABASE_PASSWORD)%" ...
35. Environment variables Since Symfony 3.2 only Available only on runtime Read only when needed Never cached
37. Cache?
38. Symfony needs cache
39. Cache warmers Symfony\Bundle\FrameworkBundle\CacheWarmer\ TemplatePathsCacheWarmer Symfony\Bundle\FrameworkBundle\CacheWarmer\ ValidatorCacheWarmer Symfony\Bundle\FrameworkBundle\CacheWarmer\ TranslationsCacheWarmer Symfony\Bridge\ Doctrine\CacheWarmer\ ProxyCacheWarmer Symfony\Bundle\TwigBundle\CacheWarmer\ TemplateCacheWarmer Symfony\Bundle\FrameworkBundle\CacheWarmer\ AnnotationsCacheWarmer Symfony\Bundle\FrameworkBundle\CacheWarmer\ RouterCacheWarmer Symfony\Bundle\FrameworkBundle\CacheWarmer\ ClassCacheCacheWarmer FOS\RestBundle\Response\AllowedMethodsLoader\AllowedMethodsRouterLoad er ...
40. Build on runtime? It may work but not ideal... Slow down first request May be blocked
41. Generate on build Improved in Symfony 3.2 Statically generated Read only filesystem compliant Requires all parameters? (passwords)
42. Generate on build bin/console cache:clear --env=prod bin/console cache:warmup --env=prod
43. Tips: doctrine Doctrine cache warmer needs the DB version http://blog.insight.sensiolabs.com/2014/12/22/making- symfony-bootable-with-dbal-2-5.html
45. Going further on cache PHP compilation takes time? Do it at build PHP7 only opcache.enable=1 opcache.enable_cli=1 opcache.file_cache="/my/cache/dir"
46. Database
47. It was working
49. Update your database? When? How?
50. Doctrine dependency hell
51. When?
52. How to do? Complex situation, no magic solution External tool 3 steps deployment Downtime Forward compatibility ...
53. What have we done?
54. 12 factors https://12factor.net/
55. Going further
56. Routing Handled by all providers DNS names SSL termination ...
57. Multi applications Handled by all providers app/ front/ .my_paas/ conf.yml packages.json back/ .my_paas/ conf.yml composer.json
58. Review app Deploy a new env for each PR
59. Read-Only
60. Why? Security Scaling
61. Sessions # app/config/config.yml snc_redis: clients: default: type: predis alias: default dsn: redis://localhost session: client: default prefix: session # app/AppKernel.php $bundles = array( // ... new Snc\RedisBundle\SncRedisBundle(), // ... ); composer require snc/redis-bundle \ predis/predis
62. Merci ! #Symfony_Live @nicofuma Twitter / Github / Gitlab / ... https://joind.in/talk/bf1de