Phantom JS + Docker：从 HTML 转换时不考虑 html 字体系列

Question

当我在 docker 中运行我的 phantomjs 应用程序时，它在 Node 中工作正常（将 HTML 转换为 Jpeg）。
但是，当我将它发布到 docker 容器时，字体名称不再受尊重。

此应用程序使用 html-convert npm 将 HTML 转换为 jpeg、pdf 或其他媒体，它是 phantomjs

的包装器

docker文件:

FROM node:latest
WORKDIR /app
COPY package.json /app
RUN npm install
COPY . /app
CMD node app.js
EXPOSE 8081

package.json

{
  "name": "htmlconverter",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "dependencies": {
    "body-parser": "^1.18.2",
    "ent": "^2.2.0",
    "express": "^4.16.3",
    "generator-azuresfcontainer": "^1.0.0",
    "html-convert": "^2.1.7",
    "html-entities": "^1.2.1",
    "memorystream": "^0.3.1",
    "phantomjs": "*",
    "phantomjs-prebuilt": "*",
    "picture-tube": "^1.0.0"
  },
  "devDependencies": {},
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": ""
}

app.js

var http = require("http");
var express = require('express');
var htmlConvert = require('html-convert');
var url = require('url');
var querystring = require('querystring');
var Readable = require('stream').Readable;
var bodyParser = require('body-parser');

var app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

app.post('/', function (req, res) {
    var html = unescape(req.body.html);
    var format = req.body.format;
    var orientation = req.body.orientation;
    var convert = htmlConvert({
        format: format,
        orientation: orientation
    });
    var s = new Readable();
    s._read = function noop() { };
    s.push(html);
    s.push(null);
    var result = s.pipe(convert());
    result.pipe(res);
});

var server = app.listen(8081, function () {
    var host = server.address().address;
    var port = server.address().port;

    console.log("Example app listening at http://%s:%s", host, port);
});

Postman（从 html 生成 jpeg）：

http://127.0.0.1:8081/

{
    "html": "<!DOCTYPE html><html><head><style>body {background-color: powderblue; font-family: 'Comic Sans MS';}h1   {color: blue;}p    {color: red;}</style></head><body><h1>This is a heading</h1><p>This is a paragraph.</p></body></html>",
    "format":"jpeg",
    "orientation":"Landscape"
}

启动 "node app.js"

后，在调用 POST 时观察 "Comic Sans" 字体的工作情况

然后运行 Docker，观察使用的默认字体：

docker build -t htmlconverter .
docker run -p 8081:8081 htmlconverter

我运行在 Windows 10

中完成此操作

有什么想法吗？

Answer 1

该字体不在 node:latest 图像中。您需要先安装 MS 字体系列。我无法将工作 Dockerfile 放在一起，但这些命令应该可以工作

wget http://ftp.de.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.6_all.deb
dpkg -i ttf-mscorefonts-installer_3.6_all.deb
apt-get install -f -y

第二条命令抛出错误，导致 docker 映像构建失败。好吧，如果您找到忽略此错误的方法，您应该能够将命令包含在 Dockerfile a 中并使用 MS 字体构建它。

Answer 2

这就是我如何让我的应用程序与 Puppeteer 一起工作。
注意：我切换到 Chrome Headless，因为 PhantomJS 是一个带有 shady Lic 协议的恐龙，没有像样的支持

FROM node:latest

# See https://crbug.com/795759
RUN apt-get update && apt-get install -yq libgconf-2-4

# Install latest chrome dev package and fonts to support major charsets (Chinese, Japanese, Arabic, Hebrew, Thai and a few others)
# Note: this installs the necessary libs to make the bundled version of Chromium that Puppeteer
# installs, work.
RUN apt-get update && apt-get install -y wget --no-install-recommends \
    && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
    && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
    && apt-get update \
    && apt-get install -y google-chrome-unstable fonts-ipafont-gothic fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst ttf-freefont \
      --no-install-recommends \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get purge --auto-remove -y curl \
    && rm -rf /src/*.deb

RUN echo "deb http://httpredir.debian.org/debian jessie main contrib" > /etc/apt/sources.list \
   && echo "deb http://security.debian.org/ jessie/updates main contrib" >> /etc/apt/sources.list \
    && echo "ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true" | debconf-set-selections \
    && apt-get update \
    && apt-get install -y ttf-mscorefonts-installer \
    && apt-get clean \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY package.json /app
RUN npm install
COPY . /app
CMD ["node", "app.js" ]
EXPOSE 8081

Answer 3

查看下面的link解决方案。 link

Please add the scripts to the Dockerfile:
RUN apk add fontconfig ttf-dejavu
RUN apk add --no-cache curl &&
cd /tmp && curl -Ls https://github.com/dustinblackman/phantomized/releases/download/2.1.1/dockerized-phantomjs.tar.gz | tar xz &&
cp -R lib lib64 / &&
cp -R usr/lib/x86_64-linux-gnu /usr/lib &&
cp -R usr/share /usr/share &&
cp -R etc/fonts /etc &&
apk del curl

I did it and it works well. (node:12.20-alpine3.12)

Phantom JS + Docker：从 HTML 转换时不考虑 html 字体系列

Phantom JS + Docker: html font-family is not respected when converting from HTML

node.js

phantomjs

docker