message: build(docs-infra): pin versions of packages installed in preview server docker image
  This minimises the risk of unexpected failures due to breaking changes,
  when building a new image (e.g. as a result of an unrelated config
  change in Dockerfile).
  PR Close
diff: @@ -81,15 +81,15 @@ RUN echo "deb http://ftp.debian.org/debian stretch-backports main" | tee /etc/ap
  # Install packages
  RUN apt-get update -y && apt-get install -y \
  - cron \
  - dnsmasq \
  - nano \
  - nginx \
  - nodejs \
  - openssl \
  - rsyslog \
  - yarn
  -RUN yarn global add pm2@3
  + cron=3.0pl1-128+deb9u1 \
  + dnsmasq=2.76-5+deb9u2 \
  + nano=2.7.4-1 \
  + nginx=1.10.3-1+deb9u2 \
  + nodejs=10.15.3-1nodesource1 \
  + openssl=1.1.0j-1~deb9u1 \
  + rsyslog=8.24.0-1 \
  + yarn=1.15.2-1
  +RUN yarn global add pm2@3.5.0
  # Set up log rotation
  