Update Backstop Docker file.

docker/backstopjs/Dockerfile

@@ -1,28 +1,31 @@
-FROM alpine:3.17
+FROM node:16.14.2-bullseye
 
-ARG BACKSTOPJS_VERSION=6.1.1
+# Prevent intractive prompts from apt-get.
+ARG DEBIAN_FRONTEND=noninteractive
 
+ARG BACKSTOPJS_VERSION=6.1.1
 ENV BACKSTOPJS_VERSION=$BACKSTOPJS_VERSION
 
-RUN apk add --no-cache \
-      chromium \
-      nss \
-      freetype \
-      harfbuzz \
-      ca-certificates \
-      ttf-freefont \
-      nodejs \
-      npm \ 
-      openrc \
-      dbus
-
-ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
-
-RUN apk upgrade --no-cache --available && \
-    PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true npm i -g backstopjs@${BACKSTOPJS_VERSION} && \
+RUN apt-get update
+
+# Install suggested requirements for running backstop in GitHub actions.
+# https://github.com/puppeteer/puppeteer/blob/main/docs/troubleshooting.md#running-puppeteer-on-gitlabci
+RUN apt-get install -yq gconf-service libasound2 libatk1.0-0 libc6 libcairo2 \
+    libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libgconf-2-4 \
+    libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 \
+    libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 \
+    libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 \
+    libxss1 libxtst6 ca-certificates fonts-liberation libnss3 lsb-release \
+    xdg-utils wget
+
+# Install the Chromium requirements, specify a Chromium build for stability.
+RUN apt-get install -yq \
+    chromium=120.0.6099.224-1~deb11u1 \
+    ca-certificates
+
+RUN PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true npm i -g backstopjs@${BACKSTOPJS_VERSION} && \
     npm cache clean -f && \
-    rm -rf /root/.cache && \
-    rc-update add dbus
+    rm -rf /root/.cache
 
 WORKDIR /src