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authorBrent Baude <bbaude@redhat.com>2020-04-13 14:18:07 -0500
committerBrent Baude <bbaude@redhat.com>2020-04-14 08:32:14 -0500
commitd625aef0c54a5afbe2d2fbdd7c26f6b45d99c8f5 (patch)
tree1090396efa9583cff44a2c1fb20b9450d4a7aa5c /pkg/domain/infra/abi/containers.go
parent004826653f2a8b064af8c1f055b1a402f4060d1c (diff)
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podmanv2 mount and umount
add the ability to mount and unmount containers for the local client only Signed-off-by: Brent Baude <bbaude@redhat.com>
Diffstat (limited to 'pkg/domain/infra/abi/containers.go')
-rw-r--r--pkg/domain/infra/abi/containers.go85
1 files changed, 85 insertions, 0 deletions
diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go
index a3a0a8202..92668190c 100644
--- a/pkg/domain/infra/abi/containers.go
+++ b/pkg/domain/infra/abi/containers.go
@@ -6,6 +6,7 @@ import (
"context"
"fmt"
"io/ioutil"
+ "os"
"strconv"
"strings"
"sync"
@@ -21,9 +22,11 @@ import (
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/domain/infra/abi/terminal"
"github.com/containers/libpod/pkg/ps"
+ "github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/pkg/signal"
"github.com/containers/libpod/pkg/specgen"
"github.com/containers/libpod/pkg/specgen/generate"
+ "github.com/containers/storage"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
@@ -808,3 +811,85 @@ func (ic *ContainerEngine) ContainerInit(ctx context.Context, namesOrIds []strin
}
return reports, nil
}
+
+func (ic *ContainerEngine) ContainerMount(ctx context.Context, nameOrIds []string, options entities.ContainerMountOptions) ([]*entities.ContainerMountReport, error) {
+ if os.Geteuid() != 0 {
+ if driver := ic.Libpod.StorageConfig().GraphDriverName; driver != "vfs" {
+ // Do not allow to mount a graphdriver that is not vfs if we are creating the userns as part
+ // of the mount command.
+ return nil, fmt.Errorf("cannot mount using driver %s in rootless mode", driver)
+ }
+
+ became, ret, err := rootless.BecomeRootInUserNS("")
+ if err != nil {
+ return nil, err
+ }
+ if became {
+ os.Exit(ret)
+ }
+ }
+ var reports []*entities.ContainerMountReport
+ ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIds, ic.Libpod)
+ if err != nil {
+ return nil, err
+ }
+ for _, ctr := range ctrs {
+ report := entities.ContainerMountReport{Id: ctr.ID()}
+ report.Path, report.Err = ctr.Mount()
+ reports = append(reports, &report)
+ }
+ if len(reports) > 0 {
+ return reports, nil
+ }
+
+ // No containers were passed, so we send back what is mounted
+ ctrs, err = getContainersByContext(true, false, []string{}, ic.Libpod)
+ if err != nil {
+ return nil, err
+ }
+ for _, ctr := range ctrs {
+ mounted, path, err := ctr.Mounted()
+ if err != nil {
+ return nil, err
+ }
+
+ if mounted {
+ reports = append(reports, &entities.ContainerMountReport{
+ Id: ctr.ID(),
+ Name: ctr.Name(),
+ Path: path,
+ })
+ }
+ }
+ return reports, nil
+}
+
+func (ic *ContainerEngine) ContainerUnmount(ctx context.Context, nameOrIds []string, options entities.ContainerUnmountOptions) ([]*entities.ContainerUnmountReport, error) {
+ var reports []*entities.ContainerUnmountReport
+ ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIds, ic.Libpod)
+ if err != nil {
+ return nil, err
+ }
+ for _, ctr := range ctrs {
+ state, err := ctr.State()
+ if err != nil {
+ logrus.Debugf("Error umounting container %s state: %s", ctr.ID(), err.Error())
+ continue
+ }
+ if state == define.ContainerStateRunning {
+ logrus.Debugf("Error umounting container %s, is running", ctr.ID())
+ continue
+ }
+
+ report := entities.ContainerUnmountReport{Id: ctr.ID()}
+ if err := ctr.Unmount(options.Force); err != nil {
+ if options.All && errors.Cause(err) == storage.ErrLayerNotMounted {
+ logrus.Debugf("Error umounting container %s, storage.ErrLayerNotMounted", ctr.ID())
+ continue
+ }
+ report.Err = errors.Wrapf(err, "error unmounting container %s", ctr.ID())
+ }
+ reports = append(reports, &report)
+ }
+ return reports, nil
+}