Running in Docker

Hi @lucacasonato !

I am trying to create a docker image where I use Deno with Oak and Puppeteer, but I am having some issues with Puppeteer. So far, this is my docker image, but I cannot seem to make it work. I have two main issues at the moment:

1: The install script does not seem to recognize that an existing installation exists 2: Puppeteer is not able to run the downloaded chromium

Here is my Dockerfile (assume that all the variables are set). Let me know if I can provide you with any other information!

FROM hayd/alpine-deno:1.7.2

EXPOSE ${MICROSERVICE_PORT}

WORKDIR /app

# As provided by https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md#running-on-alpine
RUN apk add --no-cache \
      nss \
      freetype \
      freetype-dev \
      harfbuzz \
      ca-certificates \
      ttf-freefont 


ENV PUPPETEER_EXECUTABLE_PATH=/deno-dir/deno_puppeteer/chromium/linux-818858/chrome-linux/chrome

ADD . .

RUN PUPPETEER_PRODUCT=chrome deno run -A --unstable https://deno.land/x/puppeteer@${PUPPETEER_VERSION}/install.ts

RUN deno install -qAf --unstable https://deno.land/x/denon/denon.ts

RUN deno cache --unstable src/deps.ts

RUN deno cache --unstable src/mod.ts

USER deno

ENTRYPOINT [ "denon"]

CMD ["run","--unstable","-A","src/mod.ts" ]

This is the error that I am receiving when I try to use Puppeteer:

Error: Failed to launch the browser process!
TROUBLESHOOTING: https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md

    at waitForWSEndpoint (BrowserRunner.ts:174:9)
    at async BrowserRunner.setupConnection (BrowserRunner.ts:143:31)
    at async ChromeLauncher.launch (Launcher.ts:108:26)
    at async createPDF (pdf-handler.ts:4:19)
    at async routes.ts:14:19
    at async dispatch (middleware.ts:41:7)
    at async dispatch (middleware.ts:41:7)
    at async dispatch (middleware.ts:41:7)
    at async Application.#handleRequest (application.ts:252:9)

[mt-u]

Hi @lucacasonato, @halvardssm.

I solved this. I checked the error message by adding console.log (line); between lines 167 and 168 of BrowserRunner.ts in deno-puppeteer. I found that the cause of the error was that some required packages were not installed. The packages listed in troubleshooting of puppeteer are not enough for Docker containers, need the following:

libdrm2
libxkbcommon0
libxshmfence1

And one more important thing is written here. If we run as root user inside a Docker container, we need to use --no-sandbox mode when launching Puppeteer. Otherwise error will occur. Yet one more thing, Troubleshooting has tips on shared memory issues in Docker containers. Based on these, the parameters of the launch method should be as follows:

const browser = await puppeteer.launch({
  args: [
    '--no-sandbox',
    '--disable-dev-shm-usage'
  ],
});

This is my Dockerfile:

FROM debian:buster-slim

ENV DENO_VERSION=1.10.1
ARG DEBIAN_FRONTEND=noninteractive

RUN apt-get -qq update \
    && apt-get -qq install -y --no-install-recommends \
    curl \
    ca-certificates \
    unzip \
# ↓ https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md#chrome-headless-doesnt-launch-on-unix
# Since I want to leave the contents of troubleshooting.md as it is, ca-certificates is intentionally duplicated here.
    ca-certificates \
    fonts-liberation \
    libappindicator3-1 \
    libasound2 \
    libatk-bridge2.0-0 \
    libatk1.0-0 \
    libc6 \
    libcairo2 \
    libcups2 \
    libdbus-1-3 \
    libexpat1 \
    libfontconfig1 \
    libgbm1 \
    libgcc1 \
    libglib2.0-0 \
    libgtk-3-0 \
    libnspr4 \
    libnss3 \
    libpango-1.0-0 \
    libpangocairo-1.0-0 \
    libstdc++6 \
    libx11-6 \
    libx11-xcb1 \
    libxcb1 \
    libxcomposite1 \
    libxcursor1 \
    libxdamage1 \
    libxext6 \
    libxfixes3 \
    libxi6 \
    libxrandr2 \
    libxrender1 \
    libxss1 \
    libxtst6 \
    lsb-release \
    wget \
    xdg-utils \
# ↑ https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md#chrome-headless-doesnt-launch-on-unix
# ↓ Added based on the information obtained from by console.log(line) at https://deno.land/x/puppeteer@9.0.0/src/deno/BrowserRunner.ts#L168.
    libdrm2 \
    libxkbcommon0 \
    libxshmfence1 \
# ↑ Added based on the information obtained from by console.log(line) at https://deno.land/x/puppeteer@9.0.0/src/deno/BrowserRunner.ts#L168.
    && curl -fsSL https://github.com/denoland/deno/releases/download/v${DENO_VERSION}/deno-x86_64-unknown-linux-gnu.zip \
    --output deno.zip \
    && unzip deno.zip \
    && rm deno.zip \
    && chmod 755 deno \
    && mv deno /usr/bin/deno \
    && apt-get -qq remove --purge -y \
    curl \
# Do not remove ca-certificates as it is required by puppeteer.
#    ca-certificates \
    unzip \
    && apt-get -y -qq autoremove \
    && apt-get -qq clean \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN useradd --uid 1993 --user-group deno \
 && mkdir /deno-dir/ \
 && chown deno:deno /deno-dir/

ENV DENO_DIR /deno-dir/

# https://deno.land/x/puppeteer@9.0.0#installation
RUN PUPPETEER_PRODUCT=chrome deno run -A --unstable https://deno.land/x/puppeteer@9.0.0/install.ts

WORKDIR /root
ENTRYPOINT ["deno"]
CMD ["run", "https://deno.land/std/examples/welcome.ts"]

Thank you.

[lucacasonato]

Added an example Dockerfile and info to the README. Thanks everyone for figuring this out. Especially @mt-u who got it working in the end 😃