Only do virtfs mounts at boot time with fstab

External filesystems can be mounted in /etc/fstab.

It is only the reverse-sshfs that needs to use ssh.

Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>

pkg/hostagent/hostagent.go

@@ -378,19 +378,21 @@ func (a *HostAgent) startHostAgentRoutines(ctx context.Context) error {
 	if err := a.waitForRequirements(ctx, "essential", a.essentialRequirements()); err != nil {
 		mErr = multierror.Append(mErr, err)
 	}
-	mounts, err := a.setupMounts(ctx)
-	if err != nil {
-		mErr = multierror.Append(mErr, err)
-	}
-	a.onClose = append(a.onClose, func() error {
-		var unmountMErr error
-		for _, m := range mounts {
-			if unmountErr := m.close(); unmountErr != nil {
-				unmountMErr = multierror.Append(unmountMErr, unmountErr)
-			}
+	if *a.y.MountType == limayaml.REVSSHFS {
+		mounts, err := a.setupMounts(ctx)
+		if err != nil {
+			mErr = multierror.Append(mErr, err)
 		}
-		return unmountMErr
-	})
+		a.onClose = append(a.onClose, func() error {
+			var unmountMErr error
+			for _, m := range mounts {
+				if unmountErr := m.close(); unmountErr != nil {
+					unmountMErr = multierror.Append(unmountMErr, unmountErr)
+				}
+			}
+			return unmountMErr
+		})
+	}
 	go a.watchGuestAgentEvents(ctx)
 	if err := a.waitForRequirements(ctx, "optional", a.optionalRequirements()); err != nil {
 		mErr = multierror.Append(mErr, err)

pkg/hostagent/mount.go

@@ -5,12 +5,10 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/docker/go-units"
 	"github.com/hashicorp/go-multierror"
 
 	"github.com/lima-vm/lima/pkg/limayaml"
 	"github.com/lima-vm/lima/pkg/localpathutil"
-	"github.com/lima-vm/lima/pkg/remotemount"
 	"github.com/lima-vm/sshocker/pkg/reversesshfs"
 	"github.com/sirupsen/logrus"
 )
@@ -24,8 +22,8 @@ func (a *HostAgent) setupMounts(ctx context.Context) ([]*mount, error) {
 		res  []*mount
 		mErr error
 	)
-	for i, f := range a.y.Mounts {
-		m, err := a.setupMount(ctx, i, f)
+	for _, f := range a.y.Mounts {
+		m, err := a.setupMount(ctx, f)
 		if err != nil {
 			mErr = multierror.Append(mErr, err)
 			continue
@@ -35,17 +33,7 @@ func (a *HostAgent) setupMounts(ctx context.Context) ([]*mount, error) {
 	return res, mErr
 }
 
-func (a *HostAgent) setupMount(ctx context.Context, i int, m limayaml.Mount) (*mount, error) {
-	switch *a.y.MountType {
-	case limayaml.REVSSHFS:
-		return a.setupMountReverseSSHFS(ctx, m)
-	case limayaml.NINEP:
-		return a.setupMount9P(ctx, i, m)
-	}
-	return nil, fmt.Errorf("unknown mount type: %v", *a.y.MountType)
-}
-
-func (a *HostAgent) setupMountReverseSSHFS(ctx context.Context, m limayaml.Mount) (*mount, error) {
+func (a *HostAgent) setupMount(ctx context.Context, m limayaml.Mount) (*mount, error) {
 	expanded, err := localpathutil.Expand(m.Location)
 	if err != nil {
 		return nil, err
@@ -94,51 +82,3 @@ func (a *HostAgent) setupMountReverseSSHFS(ctx context.Context, m limayaml.Mount
 	}
 	return res, nil
 }
-
-func (a *HostAgent) setupMount9P(ctx context.Context, i int, m limayaml.Mount) (*mount, error) {
-	expanded, err := localpathutil.Expand(m.Location)
-	if err != nil {
-		return nil, err
-	}
-	if err := os.MkdirAll(expanded, 0755); err != nil {
-		return nil, err
-	}
-	mountOptions := "trans=virtio"
-	mountOptions += fmt.Sprintf(",version=%s", *m.NineP.ProtocolVersion)
-	msize, err := units.RAMInBytes(*m.NineP.Msize)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse msize for %q: %w", expanded, err)
-	}
-	mountOptions += fmt.Sprintf(",msize=%d", msize)
-	mountOptions += fmt.Sprintf(",cache=%s", *m.NineP.Cache)
-
-	logrus.Infof("Mounting %q", expanded)
-	rsf := &remotemount.RemoteMount{
-		SSHConfig:           a.sshConfig,
-		LocalPath:           expanded,
-		Host:                "127.0.0.1",
-		Port:                a.sshLocalPort,
-		RemotePath:          expanded,
-		Readonly:            !(*m.Writable),
-		MountType:           "9p",
-		MountTag:            fmt.Sprintf("mount%d", i),
-		MountAdditionalArgs: []string{"-o", mountOptions},
-	}
-	if err := rsf.Prepare(); err != nil {
-		return nil, fmt.Errorf("failed to prepare 9p for %q: %w", expanded, err)
-	}
-	if err := rsf.Start(); err != nil {
-		return nil, fmt.Errorf("failed to mount 9p for %q: %w", expanded, err)
-	}
-
-	res := &mount{
-		close: func() error {
-			logrus.Infof("Unmounting %q", expanded)
-			if closeErr := rsf.Close(); closeErr != nil {
-				return fmt.Errorf("failed to unmount 9p for %q: %w", expanded, err)
-			}
-			return nil
-		},
-	}
-	return res, nil
-}