FROM ubuntu:22.04 ENV DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles" # A version field to invalidate Cirrus's build cache when needed, as suggested in # https://github.com/cirruslabs/cirrus-ci-docs/issues/544#issuecomment-566066822 ENV DOCKERFILE_VERSION=20250905 RUN apt-get update && apt-get -y install \ bc \ bison \ bsdmainutils \ ccache \ cmake \ curl \ flex \ g++ \ gcc \ git \ jq \ lcov \ libkrb5-dev \ libmaxminddb-dev \ libpcap-dev \ libssl-dev \ libzmq3-dev \ make \ python3 \ python3-dev \ python3-git \ python3-pip\ python3-semantic-version \ ruby \ sqlite3 \ swig \ unzip \ wget \ zlib1g-dev \ && apt autoclean \ && rm -rf /var/lib/apt/lists/* RUN pip3 install websockets junit2html RUN gem install coveralls-lcov