jenkins alpine docker

docker-compose.yml

version: '2'
services:
  jenkins:
    image: 'merrickluo/jenkins:alpine-docker'
    network_mode: 'host'
    volumes:
      - '/var/jenkins_home:/var/jenkins_home'
      - '/var/run/docker.sock:/var/run/docker.sock'

Dockerfile

FROM jenkins/jenkins:lts-alpine

ARG DOCKER_CLI_VERSION="19.03.9"
ENV DOWNLOAD_URL="https://download.docker.com/linux/static/stable/x86_64/docker-$DOCKER_CLI_VERSION.tgz"

USER root
# install docker client
RUN mkdir -p /tmp/download \
    && curl -L $DOWNLOAD_URL | tar -xz -C /tmp/download \                                                                                                                             && mv /tmp/download/docker/docker /usr/local/bin/ \
    && rm -rf /tmp/download \                                                                                                                                                                                                                                                                                                                                       USER ${user}

ENTRYPOINT ["/sbin/tini", "--", "/usr/local/bin/jenkins.sh"]