Docker Volume not mounting any files

Question

I'm trying to mount my source files to a directory in docker located at /var/dynamo. I'd like to be able to run Docker locally and use my local files as I am working.

with the run command:

docker run -v $(pwd):/var/dynamo -d -t -p 8001:8001 --name dynamo davesrepo/dynamo 

with my Dockerfile

FROM python:3.5.1 WORKDIR /var/dynamo RUN pip3 install tornado EXPOSE 8001 

However, when I bash into the container docker exec -it dynamo /bin/bash and run ls -la the directory is empty!

root@7d3d338891aa:/var/dynamo# ls -la total 4 drwxr-xr-x  2 root root   40 Dec 29 03:37 . drwxr-xr-x 24 root root 4096 Dec 29 03:36 .. 

Running docker inspect dynamo shows the directory mounted properly

[ {     "Id": "7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a",     "Created": "2015-12-29T03:37:01.416445958Z",     "Path": "python3",     "Args": [],     "State": {         "Status": "running",         "Running": true,         "Paused": false,         "Restarting": false,         "OOMKilled": false,         "Dead": false,         "Pid": 1314,         "ExitCode": 0,         "Error": "",         "StartedAt": "2015-12-29T03:37:01.516253705Z",         "FinishedAt": "0001-01-01T00:00:00Z"     },     "Image": "19697c9b5c7561b113d817821280971f063ea0187c82343c0832348fb6863c9a",     "ResolvConfPath": "/mnt/sda1/var/lib/docker/containers/7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a/resolv.conf",     "HostnamePath": "/mnt/sda1/var/lib/docker/containers/7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a/hostname",     "HostsPath": "/mnt/sda1/var/lib/docker/containers/7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a/hosts",     "LogPath": "/mnt/sda1/var/lib/docker/containers/7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a/7d3d338891aae32e001a3bb31d6be17802d238526830396472b011599a97212a-json.log",     "Name": "/dynamo",     "RestartCount": 0,     "Driver": "aufs",     "ExecDriver": "native-0.2",     "MountLabel": "",     "ProcessLabel": "",     "AppArmorProfile": "",     "ExecIDs": null,     "HostConfig": {         "Binds": [             "/Users/dave/Sites/davesrepo/dynamo:/var/dynamo"         ],         "ContainerIDFile": "",         "LxcConf": [],         "Memory": 0,         "MemoryReservation": 0,         "MemorySwap": 0,         "KernelMemory": 0,         "CpuShares": 0,         "CpuPeriod": 0,         "CpusetCpus": "",         "CpusetMems": "",         "CpuQuota": 0,         "BlkioWeight": 0,         "OomKillDisable": false,         "MemorySwappiness": -1,         "Privileged": false,         "PortBindings": {             "8001/tcp": [                 {                     "HostIp": "",                     "HostPort": "8001"                 }             ]         },         "Links": null,         "PublishAllPorts": false,         "Dns": [],         "DnsOptions": [],         "DnsSearch": [],         "ExtraHosts": null,         "VolumesFrom": null,         "Devices": [],         "NetworkMode": "default",         "IpcMode": "",         "PidMode": "",         "UTSMode": "",         "CapAdd": null,         "CapDrop": null,         "GroupAdd": null,         "RestartPolicy": {             "Name": "no",             "MaximumRetryCount": 0         },         "SecurityOpt": null,         "ReadonlyRootfs": false,         "Ulimits": null,         "LogConfig": {             "Type": "json-file",             "Config": {}         },         "CgroupParent": "",         "ConsoleSize": [             0,             0         ],         "VolumeDriver": ""     },     "GraphDriver": {         "Name": "aufs",         "Data": null     },     "Mounts": [         {             "Source": "/Users/dave/Sites/davesrepo/dynamo",             "Destination": "/var/dynamo",             "Mode": "",             "RW": true         }     ],     "Config": {         "Hostname": "7d3d338891aa",         "Domainname": "",         "User": "",         "AttachStdin": false,         "AttachStdout": false,         "AttachStderr": false,         "ExposedPorts": {             "8001/tcp": {}         },         "Tty": true,         "OpenStdin": false,         "StdinOnce": false,         "Env": [             "APP_ENV=development",             "PYTHONPATH=$PYTHONPATH:/var/dynamo",             "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",             "LANG=C.UTF-8",             "PYTHON_VERSION=3.5.1",             "PYTHON_PIP_VERSION=7.1.2"         ],         "Cmd": [             "python3"         ],         "Image": "davesrepo/dynamo",         "Volumes": null,         "WorkingDir": "/var/dynamo",         "Entrypoint": null,         "OnBuild": null,         "Labels": {},         "StopSignal": "SIGTERM"     },     "NetworkSettings": {         "Bridge": "",         "SandboxID": "71d99a7d11908a9d1c0156fd33eb3f0ff5ef9f6697bb77103fe2caa1cf488530",         "HairpinMode": false,         "LinkLocalIPv6Address": "",         "LinkLocalIPv6PrefixLen": 0,         "Ports": {             "8001/tcp": [                 {                     "HostIp": "0.0.0.0",                     "HostPort": "8001"                 }             ]         },         "SandboxKey": "/var/run/docker/netns/71d99a7d1190",         "SecondaryIPAddresses": null,         "SecondaryIPv6Addresses": null,         "EndpointID": "1cc99b0de89700368f31b43248c90ea45cec756712a2bd2ba2dc57293a5d0a72",         "Gateway": "172.17.0.1",         "GlobalIPv6Address": "",         "GlobalIPv6PrefixLen": 0,         "IPAddress": "172.17.0.2",         "IPPrefixLen": 16,         "IPv6Gateway": "",         "MacAddress": "02:42:ac:11:00:02",         "Networks": {             "bridge": {                 "EndpointID": "1cc99b0de89700368f31b43248c90ea45cec756712a2bd2ba2dc57293a5d0a72",                 "Gateway": "172.17.0.1",                 "IPAddress": "172.17.0.2",                 "IPPrefixLen": 16,                 "IPv6Gateway": "",                 "GlobalIPv6Address": "",                 "GlobalIPv6PrefixLen": 0,                 "MacAddress": "02:42:ac:11:00:02"             }         }     } } ] 

Docker version is 1.9.1

Answer 1

Docker & Virtualbox seem to have an issue with mounting a volume outside of the /Users directory. The only way to fix the issue is to delete the docker machine image, properly set the /Users/yourname directory as the share folder in Virtualbox and create a new docker machine image.

Steps to fix the issue:

1. docker-machine stop dev
2. docker-machine rm dev
3. docker-machine create --driver virtualbox dev
4. eval "$(docker-machine env dev)"
5. docker build -t davesrepo/dynamo -f ./Dockerfile .
6. docker run -v $(pwd):/var/dynamo -d -t -p 8001:8001 --env-file ./dynamo.env --name dynamo davesrepo/dynamo
7. docker exec -it dynamo /bin/bash
8. ls

root@42f9e47fa2de:/var/dynamo# ls Dockerfile README.md __init__.py __pycache__ bin config.ini requirements.txt seed.sql tests

Files!

Answer 2

I found out that I changed my windows password and docker requires windows credentials to mount volumes, you can update it settings > shared drives.