Run puppeteer from docker exec.

gistfile1.txt

docker exec pdf-server node --eval="\
  const puppeteer = require('puppeteer');\
  (async () => {\
    const translateProxy = function(proxy) {\
        return proxy.replace(/http[s]?:\/\//g, '').split(',').join(';');\
    };\
    const puppeteerArgs = [\
        '--no-sandbox',\
        '--disable-setuid-sandbox',\
        '--disable-dev-shm-usage',\
        '--disable-web-security',\
    ];\
    if (process.env.HTTP_PROXY) {\
        puppeteerArgs.push('--proxy-server=' + translateProxy(process.env.HTTP_PROXY));\
    }\
    else if (process.env.HTTPS_PROXY) {\
        puppeteerArgs.push('--proxy-server=' + translateProxy(process.env.HTTPS_PROXY));\
    }\
    if (process.env.NO_PROXY) {\
        puppeteerArgs.push('--proxy-bypass-list=' + translateProxy(process.env.NO_PROXY));\
    }\
    const browser = await puppeteer.launch({\
        args: puppeteerArgs,\
        executablePath: process.env.CHROME_BIN || null,\
        ignoreHTTPSErrors: true\
    });\
    try {\
        console.log('Created PDF browser.');\
        const page = await browser.newPage();\
        console.log('New page');\
        await page.goto('https://form.io');\
        console.log('Go to page');\
        await page.evaluate(async () => {\
            try {\
                const resp = await fetch('https://examples.form.io/example');\
                const result = await resp.text();\
                console.log(result);\
            }\
            catch (err) {\
                console.log(err);\
            }\
        });\
    }\
    catch (err) {\
        console.log(err);\
    }\
  })();\
"