我在 jenkins 的官方 docker 容器中运行 jenkins。我按照https://docs.docker.com/engine/installation/linux/debian/dockerfile
上的说明进行了以下操作
FROM jenkins:2.32.1
# install docker inside this container
USER root
# Install Docker inside Jenkins
RUN apt-get update
RUN apt-get purge "docker.io*"
RUN apt-get update
RUN apt-get install -y apt-transport-https ca-certificates gnupg2
RUN apt-key adv \
--keyserver hkp://ha.pool.sks-keyservers.net:80 \
--recv-keys 58118E89F3A912897C070ADBF76221572C52609D
RUN echo "deb https://apt.dockerproject.org/repo debian-jessie main" > /etc/apt/sources.list.d/docker.list
RUN apt-get update
RUN apt-cache policy docker-engine
RUN apt-get update
RUN apt-get install -y docker-engine
RUN gpasswd -a jenkins docker
USER jenkins
然后我执行以下操作:
- 从这个 dockerfile 构建一个图像
- 从镜像运行容器
- 以root 用户身份在容器中执行 bash
sudo docker service start
在容器内的 bash 中运行
这是我得到的:
root@1e0f4b325d58:/# sudo service docker start
mount: permission denied
rmdir: failed to remove ‘cpu’: Read-only file system
mount: permission denied
rmdir: failed to remove ‘cpuacct’: Read-only file system
mount: permission denied
rmdir: failed to remove ‘net_cls’: Read-only file system
mount: permission denied
rmdir: failed to remove ‘net_prio’: Read-only file system
/etc/init.d/docker: 96: ulimit: error setting limit (Operation not permitted)