Deployment with Docker

Read-only bind mounts

Another type of a bind mount that we did not really cover earlier is a read-only bind mount. This configuration is used when the data mounted into the container needs to remain read-only, which is very useful when passing configuration files into multiple containers from the host. This form of mounting a volume looks a bit like this for both of the two syntax styles:

$ # Old-style$ docker run <run_params> \             -v /path/on/host:/path/on/container:ro \             <image>...$ # New-style$ docker run <run_params> \             --mount source=/path/on/host,target=/path/on/container,readonly \             <image>...

As mentioned a bit earlier, something that a read-only volume can provide us as opposed to a regular mount is passing configuration files to the containers ...