VNC issue while using docker image selenium/node-base

[Kresimir Toplicanec]

Hello,

I am having issue connecting to VNC through localhost:5900

After I run the container and try to connect to localhost:5900 with VNC viewer, I get following error: "The connection closed unexpectedly."

I made a custom image using selenium/node-base and adding older version of Mozilla to it.

I used following docker commands:

docker build -t selenium_node_mozilla_66 -f Dockerfile_Mozilla.txt .

docker run -d -p 5555:5555 -p 5900:5900 -e SE_EVENT_BUS_HOST=<my-local-ip> -e SE_EVENT_BUS_PUBLISH_PORT=4442 -e SE_EVENT_BUS_SUBSCRIBE_PORT=4443 -v /dev/shm:/dev/shm --name Selenium_Node_Mozilla_66 selenium_node_mozilla_66

My dockerfile is:

.FROM selenium/node-base

USER root

#============

# Firefox

#============

ARG FIREFOX_VERSION=66.0

RUN FIREFOX_DOWNLOAD_URL=$(if [ $FIREFOX_VERSION = "latest" ] || [ $FIREFOX_VERSION = "nightly-latest" ] || [ $FIREFOX_VERSION = "devedition-latest" ] || [ $FIREFOX_VERSION = "esr-latest" ]; then echo "https://download.mozilla.org/?product=firefox-$FIREFOX_VERSION-ssl&os=linux64&lang=en-US"; else echo "https://download-installer.cdn.mozilla.net/pub/firefox/releases/$FIREFOX_VERSION/linux-x86_64/en-US/firefox-$FIREFOX_VERSION.tar.bz2"; fi) \

  && apt-get update -qqy \

  && apt-get -qqy --no-install-recommends install firefox libavcodec-extra \

  && rm -rf /var/lib/apt/lists/* /var/cache/apt/* \

  && wget --no-verbose -O /tmp/firefox.tar.bz2 $FIREFOX_DOWNLOAD_URL \

  && apt-get -y purge firefox \

  && rm -rf /opt/firefox \

  && tar -C /opt -xjf /tmp/firefox.tar.bz2 \

  && rm /tmp/firefox.tar.bz2 \

  && mv /opt/firefox /opt/firefox-$FIREFOX_VERSION \

  && ln -fs /opt/firefox-$FIREFOX_VERSION/firefox /usr/bin/firefox

#============

# GeckoDriver

#============

ARG GECKODRIVER_VERSION=latest

RUN GK_VERSION=$(if [ ${GECKODRIVER_VERSION:-latest} = "latest" ]; then echo "0.29.0"; else echo $GECKODRIVER_VERSION; fi) \

  && echo "Using GeckoDriver version: "$GK_VERSION \

  && wget --no-verbose -O /tmp/geckodriver.tar.gz https://github.com/mozilla/geckodriver/releases/download/v$GK_VERSION/geckodriver-v$GK_VERSION-linux64.tar.gz \

  && rm -rf /opt/geckodriver \

  && tar -C /opt -zxf /tmp/geckodriver.tar.gz \

  && rm /tmp/geckodriver.tar.gz \

  && mv /opt/geckodriver /opt/geckodriver-$GK_VERSION \

  && chmod 755 /opt/geckodriver-$GK_VERSION \

  && ln -fs /opt/geckodriver-$GK_VERSION /usr/bin/geckodriver

USER 1200

[Diego Molina]

In the "FROM" at the Dockerfile, you need to specify a tag, otherwise it will use "latest" which still uses Grid 3 and those node-firefox images do not have VNC installed.

[Kresimir Toplicanec]

Thank you, specifying a tag resolved my issue