ARG BASEIMAGE=catthehacker/ubuntu ARG TAG=act-latest FROM ${BASEIMAGE}:${TAG} # > ARGs before FROM are not accessible ARG BASEIMAGE=catthehacker/ubuntu ARG TAG=act-latest # > non-root user ARG RUNNER=runner SHELL [ "/bin/bash", "--login", "-o", "pipefail", "-c" ] # > Create non-root user RUN set -Eeuxo pipefail \ && printf "Creating non-root user\n" \ && groupadd -g 1000 ${RUNNER} \ && useradd -u 1000 -g ${RUNNER} -G sudo -m -s /bin/bash ${RUNNER} \ && sed -i /etc/sudoers -re 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g' \ && sed -i /etc/sudoers -re 's/^root.*/root ALL=(ALL:ALL) NOPASSWD: ALL/g' \ && sed -i /etc/sudoers -re 's/^#includedir.*/## **Removed the include directive** ##"/g' \ && echo "${RUNNER} ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers \ && printf "Runner user: $(su - ${RUNNER} -c id)\n" \ && printf "Created non-root user $(grep ${RUNNER} /etc/passwd)\n" \ && sed -i /etc/environment -e "s/USER=root/USER=${RUNNER}/g" \ && echo "RUNNER_TEMP=/home/${RUNNER}/work/_temp" | tee -a /etc/environment \ && mkdir -p "/home/${RUNNER}/work/_temp" \ && chown -R ${RUNNER}:${RUNNER} "/home/${RUNNER}/work" \ && mkdir -p "/home/${RUNNER}/.ssh" \ && chmod 700 "/home/${RUNNER}/.ssh" \ && ssh-keyscan github.com | tee "/home/${RUNNER}/.ssh/known_hosts" \ && chmod 644 "/home/${RUNNER}/.ssh/known_hosts" \ && chown -R ${RUNNER}:${RUNNER} "/home/${RUNNER}/.ssh" ARG BUILD_TAG_VERSION="master" ARG BUILD_TAG="runner" ARG BUILD_REF="master" LABEL org.opencontainers.image.vendor="catthehacker" LABEL org.opencontainers.image.authors="me@hackerc.at" LABEL org.opencontainers.image.url="https://github.com/catthehacker/docker_images/linux/${BASEIMAGE}/${IMAGE_TYPE}" LABEL org.opencontainers.image.source="https://github.com/catthehacker/docker_images.git" LABEL org.opencontainers.image.version=${BUILD_TAG_VERSION} LABEL org.opencontainers.image.title=${BUILD_TAG} LABEL org.opencontainers.image.revision=${BUILD_REF} USER ${RUNNER} WORKDIR /home/runner