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Confident Asset Deployments with Webpack & Django
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Scott Burns
July 19, 2016
Technology
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1.2k
Confident Asset Deployments with Webpack & Django
Presented at Djangocon US 2016 on Tuesday, July 19th 2016.
Scott Burns
July 19, 2016
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Transcript
CONFIDENT ASSET DEPLOYMENTS WITH WEBPACK & DJANGO SCOTT BURNS (@SCOTTSBURNS)
DJANGOCON US 2016 #CONFIDENT-DEPLOYS
SHHH, I HAVE A SECRET @scottsburns Confident Asset Deployments
OWAIS LONE GITHUB.COM/OWAIS
̣ PHILOSOPHY ̣ SPECIFICS ̣ PHILOSOPHY @scottsburns Confident Asset Deployments
CONFIDENT ASSET DEPLOYMENTS? @scottsburns Confident Asset Deployments
DEPLOYMENTS Confident Asset Deployments @scottsburns
̣CHANGES ̣FEATURES ̣FIXES Confident Asset Deployments @scottsburns
ASSET @scottsburns Confident Asset Deployments
̣JAVASCRIPT ̣CSS ̣IMAGES @scottsburns Confident Asset Deployments
CONFIDENT @scottsburns Confident Asset Deployments
̣EASY TO BEGIN ̣REVERSIBLE ̣FAST @scottsburns Confident Asset Deployments
̣AUTOMATED ̣FEW 3RD PARTIES ̣TESTED @scottsburns Confident Asset Deployments
WHY NOW? Confident Asset Deployments @scottsburns
TOOLCHAINS HAVE IMPROVED Confident Asset Deployments @scottsburns
COMMUNITIES MOVE AT DIFFERENT SPEEDS Confident Asset Deployments @scottsburns
BUILD BRIDGES, NOT WRAPPERS Confident Asset Deployments @scottsburns
CODE PLEASE Confident Asset Deployments @scottsburns
WEBPACK? Confident Asset Deployments @scottsburns
Confident Asset Deployments @scottsburns https://webpack.github.io/ WEBPACK
$ npm install -s -g \ webpack \ webpack-bundle-tracker Confident
Asset Deployments @scottsburns INSTALLATION
WEBPACK.CONFIG.JS Confident Asset Deployments @scottsburns var path = require("path") var
webpack = require('webpack') var BundleTracker = require('webpack-bundle-tracker') module.exports = { entry: { app: ’./static/index.js’ }, output: { path: path.resolve('./static/bundles/'), filename: "[name]-[hash].js", },...
WEBPACK.CONFIG.JS Confident Asset Deployments @scottsburns ... plugins: [ new BundleTracker(
{filename: ‘./webpack-stats.json’}), ], module: { loaders: […] // not enough time :( }, }
$ webpack —-config \ webpack.config.js Confident Asset Deployments @scottsburns BUILD
THE BUNDLE
{ “status":"done", “chunks”: { “app”: [{ “name": "app-1234567890.js", “path”: “/app/static/bundles/
app-1234567890.js”} ] } } Confident Asset Deployments @scottsburns WEBPACK-STATS.JSON
Confident Asset Deployments @scottsburns
app/ ├─ manage.py ├─ webpack.config.js ├─ webpack-stats.json ├─ static │
├─ index.js │ └─ bundles/ # git ignore │ └─ app-1234567890.js └─ app/ └─ urls.py, app.wsgi, etc… Confident Asset Deployments @scottsburns STRUCTURE
<head> ... </head> <body> <div id="root">...</div> <script src=“{% static ‘bundles/app-1234567890.js’
%}” type=“text/javascript” charset=“utf-8”> </body> Confident Asset Deployments @scottsburns INDEX.HTML
$ pip install \ django-webpack-loader Confident Asset Deployments @scottsburns
... STATICFILES_DIRS = ( ‘static’, ) ... Confident Asset Deployments
@scottsburns SETTINGS.PY
... WEBPACK_LOADER = { 'BUNDLE_DIR_NAME': 'bundles/', ‘STATS_FILE': 'webpack-stats.json', } ...
Confident Asset Deployments @scottsburns SETTINGS.PY
... INSTALLED_APPS = ( ... ‘webpack_loader', ... ) ... Confident
Asset Deployments @scottsburns SETTINGS.PY
{% load render_bundle from webpack_loader %} <head> ... </head> <body>
<div id="root">...</div> {% render_bundle ‘main' %} </body> Confident Asset Deployments @scottsburns INDEX.HTML
<head> ... </head> <body> <div id="root">...</div> <script src="/static/bundles/app-1234567890.js" type="text/javascript" charset=“utf-8">
</body> Confident Asset Deployments @scottsburns (RENDERED) INDEX.HTML
Confident Asset Deployments WEBPACK-STATS.JSON INDEX.HTML APP-1234567890.JS @scottsburns
Confident Asset Deployments WEBPACK-STATS.JSON INDEX.HTML APP-0987654321.JS @scottsburns
DON’T SERVE ASSETS FROM DJANGO Confident Asset Deployments @scottsburns
WHY NOT (PURE) STATICFILES? Confident Asset Deployments @scottsburns
̣PRODUCTION ENV ̣SLOW ̣POST-PROCESSORS @scottsburns Confident Asset Deployments
SEPARATE THE CONCERNS Confident Asset Deployments @scottsburns
FRONT-END DEVS WILL ❤ YOU Confident Asset Deployments @scottsburns
(DEV)OPS WILL ❤ YOU Confident Asset Deployments @scottsburns
NEW DEVS WILL ❤ YOU Confident Asset Deployments @scottsburns
̣BUILD ̣DEPLOY ̣REPEAT @scottsburns Confident Asset Deployments
THANK YOU ❤ @scottsburns Confident Asset Deployments