Common basic commands
Environment: Linux Ubuntu
1. Review the information docker
docker version | docker info
2. Start docker Service
sudo systemctl start docker
3. List the machine all the image files
docker image ls | docker images
4. Delete docker image
docker image rm imageName
5. The docker caught local files from the repository
docker image pull hello-world
6. Run a document image, generates a container
docker container run hello-world
ps:
①docker container run command has automatically grab image file functions, not specified if the local image file found, it will crawl directly from the warehouse. Therefore, docker image pull is not a necessary step
②docker container run -p 8000:3000 --rm -it -v /home/dock/:/home/mount/ --name first koa-demo /bin/bash
by:
-p container port and the local port mapping, before the colon after a local port, colon container port. Examples here are mapped to port 3000 to port 8000 of container
--rm container file is automatically deleted after the termination of operation of the vessel
shell -it container mapped to the current shell, then the command that you enter in the native window, will be passed to the container.
-v mount a local directory, a colon before host directory must be an absolute path, after the colon is mounted within the image path.
--name name to the container, without this parameter will be randomly generated name
7. List container of the present machine is running
docker container ls
The machine lists all containers, comprising a termination vessel
docker container ls --all
8. Termination container runs
docker container kill [containerID]
Termination container operation will still take up hard disk space, you can remove
docker container rm [containerID]
9.
① termination container operation
docker container stop [containerID]
ps:
Preceding docker container killcommand to terminate operation of the vessel, with a SIGKILL signal corresponds to the inside of the container main process. The docker container stopcommand is used to terminate operation of the vessel, corresponding to the main process SIGTERM signal sent inside the container, and then over a period of time with a SIGKILL signal.
The difference between these two signals is that the application after receiving SIGTERM signal, may be ending their own clean-up work, but also can ignore this signal. If you receive a SIGKILL signal, it will be forced to immediately terminate the operation of those in progress will be lost.
② start the container, which is used to enable the container file has stopped running
docker container start [containerID]
10 into the container
docker container exec -it [containerID] /bin/bash
