Tools, FAQ, Tutorials:
Docker Data Storage - Bind Mounts
How to create a new Bind mount to a Docker container?
✍: FYIcenter.com
Bind mounts may be stored anywhere on the host system. They may even be important system files or directories. Non-Docker processes on the Docker host or a Docker container can modify them at any time.
You have two options "--volume" and "--mount" on the "docker container create/run" command to create bind mounts.
"--volume ...:..." Option - Allows you to create a new bind mount to the new Docker container with default configuration.
"--mount type=bind,..." Option - Allows you to create a new bind mount to the new Docker container with specific configurations.
For example, the following command "docker run --volume" runs a new container with host's /tmp mounted to docker's /tmp.
fyicenter# docker run --volume /tmp:/tmp -tid --name fyi_test alpine fyicenter# docker exec -ti fyi_test /bin/sh / # df -h Filesystem Size Used Available Use% Mounted on overlay 50.0G 22.3G 27.7G 45% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 3.7G 0 3.7G 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/mapper/cl-root 50.0G 22.3G 27.7G 45% /tmp /dev/mapper/cl-root 50.0G 22.3G 27.7G 45% /etc/resolv.conf /dev/mapper/cl-root 50.0G 22.3G 27.7G 45% /etc/hostname /dev/mapper/cl-root 50.0G 22.3G 27.7G 45% /etc/hosts ... / # ls -l /tmp drwxr-xr-x 2 1000 1000 20 hsperfdata_fyicenter drwx------ 2 1000 1000 27 ssh-BSGkGtPZOO / # exit fyicenter# docker container stop fyi_test fyi_test fyicenter# docker container rm fyi_test fyi_test
If you want to create a new bind mount as read only, you need to use the "docker run --mount type=bind,readonly,..." option as shown below.
fyicenter# docker run --mount type=bind,readonly,source=/tmp,destination=/tmp \ -tid --name fyi_test alpine fyicenter# docker exec -it fyi_test /bin/sh / # df -h Filesystem Size Used Available Use% Mounted on overlay 50.0G 22.3G 27.7G 45% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 3.7G 0 3.7G 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/mapper/cl-root 50.0G 22.3G 27.7G 45% /tmp ... / # exit fyicenter# docker container stop fyi_test fyi_test fyicenter# docker container rm fyi_test fyi_test
⇒ Docker Data Storage - Multiple Mounts
⇐ Docker Data Storage - Volume Mounts
2021-08-15, 723🔥, 0💬
Popular Posts:
How To Submit Values without Using a Form in PHP? If you know the values you want to submit, you can...
How To Set session.gc_divisor Properly in PHP? As you know that session.gc_divisor is the frequency ...
How to search for the first match of a regular expression using re.search()? The re.search() functio...
What is Azure API Management Developer Portal Admin? The Developer Portal Admin is an Azure Web port...
What is Azure API Management Developer Portal Admin? The Developer Portal Admin is an Azure Web port...