Docker-提交具有正在运行的进程的容器(PostgreSQL) [英] Docker - commit container with running processes (postgresql)
问题描述
是否可以在运行postgresql的情况下提交容器，以便立即准备就绪?我已经尝试使用启动脚本CMD和bashrc来启动postgresql，使用它们都可以很好地启动
Is it possible to commit a container with postgresql running so that it is ready immediately? I have tried using a startup script, CMD and bashrc to start postgresql, which all start it fine when using
docker run -it [containerID]
docker run -it [containerID]
但是登录后，大约需要3-5秒才能显示出来.不幸的是，我需要登录时运行postgresql.
but it takes approximately 3-5 seconds for postgresql to come up once logged in. I unfortunately need postgresql running on login.
使用这种方法...
docker build -t [名称]
docker build -t [name]
docker run -it [containerId]
docker run -it [containerId]
然后在容器内运行
服务postgresql启动
service postgresql start
并使用ctrl p + q分离.分离后，我提交
and detach with ctrl p + q. Once detached I commit with
docker commit [containerId] [名称]
docker commit [containerId] [name]
运行新映像时，postgresql未运行，并且锁文件被保留.可以提交这样的正在运行的服务，还是有办法在运行映像时准备好Postgresql?
Upon running the new image, postgresql is not running and the lock file is left over. Is it possible to commit a running service like this or is there a way to have postgresql ready upon running the image?
推荐答案
图像只是一组文件，没有进程，因此问题没有道理.当您从映像启动容器时，进程将在此处开始-进程仅存在于正在执行的容器中，当容器停止时不再存在进程-仅来自容器文件系统中的文件.
Image is just a set of files there are no processes, so question does not make sense. When you start container from image then process will start here - processes exists only in executing container, when container stops there are no processes anymore - only files from container's filesystem.
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