我一直在尝试使用FleetCtl启动docker镜像,一个是数据卷镜像,另一个是使用--volumes-from选项启动的Nginx镜像。 Nginx镜像将不会继续在CoreOs服务器上运行,但是如果我转到服务器并键入命令docker start,镜像将启动并运行。是否存在使用Fleet启动使用数据卷的Docker镜像的镜像?
卷的Docker文件:
FROM busybox
MAINTAINER Zombie Possum
VOLUME ["/usr/share/nginx/html", "/usr/share/nginx/conf"]
COPY dist /usr/share/nginx/html
COPY dist_nginx.conf /usr/share/nginx/conf/dist_nginx.conf
CMD ["/usr/bin/true"]
卷nginxData.service的机队文件:
[Unit]
Description=Data Container
Requires=docker.service
After=docker.service
[Service]
TimeoutStartSec=0
KillMode=none
User=core
WorkingDirectory=/home/core
EnvironmentFile=/etc/environment
ExecStartPre=-/usr/bin/docker kill DATA_NGINX
ExecStartPre=-/usr/bin/docker rm DATA_NGINX
ExecStartPre=-/usr/bin/docker pull private_repo/data_nginx:latest
ExecStart=/usr/bin/docker run --name DATA_NGINX private_repo/data_nginx:latest
ExecStop=/usr/bin/docker stop DATA_NGINX
nginx.service的机队文件:
[Unit]
Description=Nginx Container
Requires=docker.service
After=docker.service
[Service]
TimeoutStartSec=0
KillMode=none
User=core
WorkingDirectory=/home/core
EnvironmentFile=/etc/environment
ExecStartPre=-/usr/bin/docker kill NGINX
ExecStartPre=-/usr/bin/docker rm NGINX
ExecStartPre=-/usr/bin/docker pull private_repo/nginx:latest
ExecStart=/usr/bin/docker run -rm -p 80:80 --name NGINX --volumes-from DATA_NGINX private_repo/nginx:latest
ExecStop=/usr/bin/docker stop NGINX
[X-Fleet]
MachineOf=nginxData.service
舰队司令部:
fleetctl submit nginxData.service
fleetctl submit nginx.service
fleetctl start nginxData.service
fleetctl start nginx.service
最佳答案
您提供的Dockerfile在我的Docker主机上运行时发生错误(未使用Fleet);也许当车队确实检测到该错误时,它会为您删除该容器,而在Docker主机上,尽管有该错误,该容器仍处于停止状态。
这是错误:
$ docker build --force-rm -t so-26469566 .
$ docker run --name DATA_NGINX so-26469566
exec: "/usr/bin/true": stat /usr/bin/true: no such file or directory2014/10/20 16:59:54 Error response from daemon: Cannot start container 767562758b9f30097a5ed16b98fe818d9c9574bb82b1cfd502bc3403e97d5b0
e: exec: "/usr/bin/true": stat /usr/bin/true: no such file or directory
make: *** [run] Error 1
在您的Dockerfile中尝试以下
CMD
语句,看看它是否确实改变了Fleet的行为。CMD ["/bin/true"]
关于docker - 使用CoreOS和Fleet发行具有数据量的镜像启动问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26469566/