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Description
- This is a bug report
- This is a feature request
- I searched existing issues before opening this one
Expected behavior
The tmpfs mount's permissions should be exactly the same as when they were initially set.
Actual behavior
On the first start of the container, the permissions are correctly set. After a restart they are always reset back to 755.
Steps to reproduce the behavior
$ docker run --name test --tmpfs /test debian stat -c %a /test && docker start -a test && docker rm test 1777 755 test $ docker run --name test --mount type=tmpfs,destination=/test,tmpfs-mode=1777 debian stat -c %a /test && docker start -a test && docker rm test 1777 755 test $ docker run --name test --mount type=tmpfs,destination=/test,tmpfs-mode=0444 debian stat -c %a /test && docker start -a test && docker rm test 444 755 test Output of docker version:
Client: Version: 17.09.0-ce API version: 1.32 Go version: go1.8.3 Git commit: afdb6d4 Built: Tue Sep 26 22:42:18 2017 OS/Arch: linux/amd64 Server: Version: 17.09.0-ce API version: 1.32 (minimum version 1.12) Go version: go1.8.3 Git commit: afdb6d4 Built: Tue Sep 26 22:40:56 2017 OS/Arch: linux/amd64 Experimental: false Output of docker info:
Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 1 Server Version: 17.09.0-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 06b9cb35161009dcb7123345749fef02f7cea8e0 runc version: 3f2f8b84a77f73d38244dd690525642a72156c64 init version: 949e6fa Security Options: apparmor seccomp Profile: default Kernel Version: 4.4.0-97-generic Operating System: Ubuntu 16.04.3 LTS OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 992.1MiB Name: ubuntu-xenial ID: I4LX:P2UV:RBV5:CF5A:H6Y2:UN2T:ISCF:ETL7:XRT3:J7J5:6O5B:WKGY Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false WARNING: No swap limit support Additional environment details (AWS, VirtualBox, physical, etc.)
Package: virtualbox-5.1 Version: 5.1.30-118389~Debian~stretch Metadata
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