Switch to quart and pyppeteer
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quart: async flask
pyppeteer: puppeteer but in python
→ no nodejs in container
This commit is contained in:
Simon Bruder 2020-04-29 05:08:19 +02:00
parent ab156a68ea
commit 3912d29530
No known key found for this signature in database
GPG key ID: 6F03E0000CC5B62F
11 changed files with 312 additions and 373 deletions

1
.gitignore vendored
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@ -1,4 +1,3 @@
__pycache__ __pycache__
node_modules
static static
namensschild.stl namensschild.stl

6
.pre-commit-config.yaml Normal file
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@ -0,0 +1,6 @@
repos:
- repo: https://github.com/psf/black
rev: 19.10b0
hooks:
- id: black
language_version: python3

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@ -1,11 +1,13 @@
FROM node:alpine as node-modules FROM python:3-alpine as requirements
WORKDIR /usr/src/app WORKDIR /usr/src/app/
COPY package.json . RUN pip install --no-cache-dir pipenv
COPY package-lock.json .
RUN npm install COPY Pipfile .
COPY Pipfile.lock .
RUN pipenv lock -r > requirements.txt
FROM debian:testing-slim FROM debian:testing-slim
@ -13,7 +15,6 @@ RUN apt-get update \
&& apt-get -y install \ && apt-get -y install \
fonts-roboto \ fonts-roboto \
inkscape \ inkscape \
nodejs \
openscad \ openscad \
pstoedit \ pstoedit \
python3 \ python3 \
@ -22,15 +23,14 @@ RUN apt-get update \
WORKDIR /usr/src/app WORKDIR /usr/src/app
COPY --from=node-modules /usr/src/app/node_modules node_modules COPY --from=requirements /usr/src/app/requirements.txt .
COPY requirements.txt . RUN pip3 install --no-cache-dir -r requirements.txt \
&& pyppeteer-install
RUN pip3 install --no-cache-dir -r requirements.txt
RUN mkdir static RUN mkdir static
COPY . . COPY . .
ENTRYPOINT ["gunicorn", "-w", "4", "-b", "0.0.0.0:8000", "server:app"] ENTRYPOINT ["hypercorn", "-w", "4", "-b", "0.0.0.0:8000", "server:app"]
EXPOSE 8000 EXPOSE 8000

14
Pipfile Normal file
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@ -0,0 +1,14 @@
[[source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true
[dev-packages]
[packages]
pyppeteer = "*"
quart = "*"
hypercorn = "*"
[requires]
python_version = "3.8"

235
Pipfile.lock generated Normal file
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@ -0,0 +1,235 @@
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315
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}

View file

@ -1,5 +0,0 @@
{
"dependencies": {
"puppeteer": "^1.13.0"
}
}

View file

@ -1,24 +0,0 @@
const puppeteer = require('puppeteer');
const process = require('process')
const name = process.argv[2];
(async () => {
const browser = await puppeteer.launch({
args: [
'--no-sandbox',
'--disable-setuid-sandbox'
]
})
const page = await browser.newPage()
await page.goto('file://' + process.cwd() + '/namensschild.html', {waitUntil: 'networkidle2'})
await page.$eval('#name', (el, name) => { el.innerText = name; setSize() }, name)
await page.pdf({
path: `static/namensschild.pdf`,
width: '180px',
height: '60px'
})
await browser.close()
})()

View file

@ -1,2 +0,0 @@
flask
gunicorn

View file

@ -1,23 +1,54 @@
#!/usr/bin/env python3 #!/usr/bin/env python3
from flask import Flask, request, render_template, url_for, redirect from pyppeteer import launch
from quart import Quart, request, render_template, url_for, redirect
from subprocess import run from subprocess import run
app = Flask(__name__) import asyncio
import os
app = Quart(__name__)
def run_check(*args, **kwargs): def run_check(*args, **kwargs):
return run(*args, **kwargs, check=True) return run(*args, **kwargs, check=True)
async def gen_pdf(name):
browser = await launch(args=["--no-sandbox"])
page = await browser.newPage()
await page.goto("file://" + os.path.join(os.getcwd(), "namensschild.html"))
await page.evaluate(f"document.querySelector('#name').innerText = '{name}'")
await page.pdf(path="static/namensschild.pdf", width="180px", height="60px")
await browser.close()
@app.route("/") @app.route("/")
def hello(): async def index():
try: return await render_template("index.html.j2")
name = request.args['name']
run_check(['node', 'print.js', name])
run_check(['inkscape', '-T', '-E', 'static/namensschild.eps', 'static/namensschild.pdf'])
run_check(['pstoedit', '-q', '-flat', '0.0001', '-dt', '-f', 'dxf: -polyaslines -mm', 'static/namensschild.eps', 'static/namensschild.dxf'])
run_check(['openscad', '-o', f'static/{name}.stl', 'namensschild.scad'])
return redirect(url_for('static', filename=f'{name}.stl'), code=302)
except KeyError:
return render_template('index.html.j2')
if __name__ == '__main__': @app.route("/generate")
app.run(host='0.0.0.0') async def generate():
name = request.args["name"]
await gen_pdf(name)
run_check(
["inkscape", "-T", "-E", "static/namensschild.eps", "static/namensschild.pdf",]
)
run_check(
[
"pstoedit",
"-q",
"-flat",
"0.0001",
"-dt",
"-f",
"dxf: -polyaslines -mm",
"static/namensschild.eps",
"static/namensschild.dxf",
]
)
run_check(["openscad", "-o", f"static/{name}.stl", "namensschild.scad"])
return redirect(url_for("static", filename=f"{name}.stl"), code=302)
if __name__ == "__main__":
app.run(debug=True)

View file

@ -50,7 +50,7 @@
<body> <body>
<div class="container"> <div class="container">
<h1>Namensschilder</h1> <h1>Namensschilder</h1>
<form target="_blank"> <form target="_blank" action="/generate">
<input type="text" name="name"> <input type="text" name="name">
<input type="submit" value=""> <input type="submit" value="">
</form> </form>