mount – Make Me Engineer

Mounting nfs shares inside docker container

May 2, 2023 by Tarik

Starting from docker 17.06, you can mount NFS shares to the container directly when you run it, without the need of extra capabilities export NFS_VOL_NAME=mynfs export NFS_LOCAL_MNT=/mnt/mynfs export NFS_SERVER=my.nfs.server.com export NFS_SHARE=/my/server/path export NFS_OPTS=vers=4,soft docker run –mount \ “src=$NFS_VOL_NAME,dst=$NFS_LOCAL_MNT,volume-opt=device=:$NFS_SHARE,\”volume-opt=o=addr=$NFS_SERVER,$NFS_OPTS\”,type=volume,volume-driver=local,volume-opt=type=nfs” \ busybox ls $NFS_LOCAL_MNT Alternatively, you can create the volume before the container: docker volume create \ … Read more

Mount SMB/CIFS share within a Docker container

November 3, 2022 by Tarik

Yes, Docker is preventing you from mounting a remote volume inside the container as a security measure. If you trust your images and the people who run them, then you can use the –privileged flag with docker run to disable these security measures. Further, you can combine –cap-add and –cap-drop to give the container only … Read more

Docker mount to folder overriding content

October 10, 2022 by Tarik

First of all, docker volumes or bind mounts behave like linux mounts. If the host volume/mount exists and contains files it will “override” whatever is in the container. If not the container files will be mirrored onto the host volume/mount and the container folder and the host will be in sync. In both cases editing … Read more

Manually put files to Android emulator SD card

July 14, 2022 by Tarik

If you are using Eclipse you can move files to and from the SD Card through the Android Perspective (it is called DDMS in Eclipse). Just select the Emulator in the left part of the screen and then choose the File Explorer tab. Above the list with your files should be two symbols, one with … Read more

Permission denied on accessing host directory in Docker

June 28, 2022 by Tarik

See this Project Atomic blog post about Volumes and SELinux for the full story. Specifically: This got easier recently since Docker finally merged a patch which will be showing up in docker-1.7 (We have been carrying the patch in docker-1.6 on RHEL, CentOS, and Fedora). This patch adds support for “z” and “Z” as options … Read more

How to mount a host directory in a Docker container

May 7, 2022 by Tarik

There are a couple ways you can do this. The simplest way to do so is to use the dockerfile ADD command like so: ADD . /path/inside/docker/container However, any changes made to this directory on the host after building the dockerfile will not show up in the container. This is because when building a container, … Read more