podman

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package buildah
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import "fmt"
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// Mount mounts a container's root filesystem in a location which can be
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// accessed from the host, and returns the location.
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func (b *Builder) Mount(label string) (string, error) {
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	mountpoint, err := b.store.Mount(b.ContainerID, label)
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	if err != nil {
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		return "", fmt.Errorf("mounting build container %q: %w", b.ContainerID, err)
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	}
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	b.MountPoint = mountpoint
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	err = b.Save()
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	if err != nil {
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		return "", fmt.Errorf("saving updated state for build container %q: %w", b.ContainerID, err)
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	}
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	return mountpoint, nil
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}
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func (b *Builder) setMountPoint(mountPoint string) error {
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	b.MountPoint = mountPoint
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	if err := b.Save(); err != nil {
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		return fmt.Errorf("saving updated state for build container %q: %w", b.ContainerID, err)
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	}
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	return nil
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}
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// Mounted returns whether the container is mounted or not
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func (b *Builder) Mounted() (bool, error) {
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	mountCnt, err := b.store.Mounted(b.ContainerID)
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	if err != nil {
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		return false, fmt.Errorf("determining if mounting build container %q is mounted: %w", b.ContainerID, err)
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	}
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	mounted := mountCnt > 0
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	if mounted && b.MountPoint == "" {
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		ctr, err := b.store.Container(b.ContainerID)
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		if err != nil {
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			return mountCnt > 0, fmt.Errorf("determining if mounting build container %q is mounted: %w", b.ContainerID, err)
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		}
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		layer, err := b.store.Layer(ctr.LayerID)
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		if err != nil {
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			return mountCnt > 0, fmt.Errorf("determining if mounting build container %q is mounted: %w", b.ContainerID, err)
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		}
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		return mounted, b.setMountPoint(layer.MountPoint)
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	}
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	if !mounted && b.MountPoint != "" {
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		return mounted, b.setMountPoint("")
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	}
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	return mounted, nil
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}
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