diff options
Diffstat (limited to 'cmd/podman/umount.go')
| -rw-r--r-- | cmd/podman/umount.go | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/cmd/podman/umount.go b/cmd/podman/umount.go index 1a2cf22c6..1e364b48f 100644 --- a/cmd/podman/umount.go +++ b/cmd/podman/umount.go @@ -3,6 +3,7 @@ package main import ( "fmt" + "github.com/containers/storage" "github.com/pkg/errors" "github.com/projectatomic/libpod/cmd/podman/libpodruntime" "github.com/projectatomic/libpod/libpod" @@ -16,13 +17,24 @@ var ( Name: "all, a", Usage: "umount all of the currently mounted containers", }, + cli.BoolFlag{ + Name: "force, f", + Usage: "force the complete umount all of the currently mounted containers", + }, } + description = ` +Container storage increments a mount counter each time a container is mounted. +When a container is unmounted, the mount counter is decremented and the +container's root filesystem is physically unmounted only when the mount +counter reaches zero indicating no other processes are using the mount. +An unmount can be forced with the --force flag. +` umountCommand = cli.Command{ Name: "umount", Aliases: []string{"unmount"}, Usage: "Unmounts working container's root filesystem", - Description: "Unmounts working container's root filesystem", + Description: description, Flags: umountFlags, Action: umountCmd, ArgsUsage: "CONTAINER-NAME-OR-ID", @@ -36,6 +48,7 @@ func umountCmd(c *cli.Context) error { } defer runtime.Shutdown(false) + force := c.Bool("force") umountAll := c.Bool("all") args := c.Args() if len(args) == 0 && !umountAll { @@ -58,7 +71,7 @@ func umountCmd(c *cli.Context) error { continue } - if err = ctr.Unmount(); err != nil { + if err = ctr.Unmount(force); err != nil { if lastError != nil { logrus.Error(lastError) } @@ -78,7 +91,10 @@ func umountCmd(c *cli.Context) error { continue } - if err = ctr.Unmount(); err != nil { + if err = ctr.Unmount(force); err != nil { + if umountAll && errors.Cause(err) == storage.ErrLayerNotMounted { + continue + } if lastError != nil { logrus.Error(lastError) } |