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path: root/libpod/volume_internal_linux.go
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* Wait for `mount` command to finish when mounting volumeMatthew Heon2019-10-30
| | | | | | | | | | | | | | | | command.Start() just starts the command. That catches some errors, but the nasty ones - bad options and similar - happen when the command runs. Use CombinedOutput() instead - it waits for the command to exit, and thus catches non-0 exit of the `mount` command (invalid options, for example). STDERR from the `mount` command is directly used, which isn't necessarily the best, but we can't really get much more info on what went wrong. Fixes #4303 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Ensure volumes can be removed when they fail to unmountMatthew Heon2019-10-14
| | | | | | | | | | | | | | | | | | | | Also, ensure that we don't try to mount them without root - it appears that it can somehow not error and report that mount was successful when it clearly did not succeed, which can induce this case. We reuse the `--force` flag to indicate that a volume should be removed even after unmount errors. It seems fairly natural to expect that --force will remove a volume that is otherwise presenting problems. Finally, ignore EINVAL on unmount - if the mount point no longer exists our job is done. Fixes: #4247 Fixes: #4248 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Correctly report errors on unmounting SHMMatthew Heon2019-09-05
| | | | | | | | | | | When we fail to remove a container's SHM, that's an error, and we need to report it as such. This may be part of our lingering storage woes. Also, remove MNT_DETACH. It may be another cause of the storage removal failures. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add ability for volumes with options to mount/umountMatthew Heon2019-09-05
When volume options and the local volume driver are specified, the volume is intended to be mounted using the 'mount' command. Supported options will be used to volume the volume before the first container using it starts, and unmount the volume after the last container using it dies. This should work for any local filesystem, though at present I've only tested with tmpfs and btrfs. Signed-off-by: Matthew Heon <matthew.heon@pm.me>