Another CLI cheat sheet; this time for Docker.
Whenever you edit the Dockerfile, the image needs to be rebuilt:
docker build -t name .
List locally stored images:
docker image list
Run a container with a specified image:
docker run myImage
-d: detached. Run the container in the background. Don’t overtake the terminal with output from the container.
–rm: remove the container when stopped. recommended to always include this in every docker run command
–hostname: assign a hostname to the container. useful for container networking.
-p: map port 80 from the container to port 8086 on the host
-v: mounts volumes to the container. retains data (stored on the host) that is written to the filesystem by the container after a restart
Example run command:
docker run \
-d \
--rm \
-p8086:80 \
-v name:/data \
--name="mycontainer" \
mycontainer
Launch the container with shell (/bin/bash):
-it: For interactive processes (like a shell), you must use -i -t together to allocate a tty for the container process.
Full command to start a container, name it, and launch a bash prompt within it:
docker run -it --rm --name mycontainer myimage /bin/bash
View logs of a detached container:
docker logs mycontainer -f
List running containers:
docker ps
Stop the running container:
docker stop mycontainer