Implement --image-volumes for create and run

--image-volumes tells podman what to do with the image volumes in the image config
There are 3 options: bind, tmpfs, and ignore
bind puts the volume contents in /var/lib/containers/storage/container-id/volumes/vol-dir
and bind mounts it into the container at /vol-dir
tmpfs mounts /vol-dir as a tmps into the container
ignore doesn't mount the image volumes onto the container

Signed-off-by: umohnani8 <umohnani@redhat.com>

Closes: #377
Approved by: rhatdan

1 files changed, 12 insertions, 1 deletions

diff --git a/libpod/util.go b/libpod/util.go
index 1a033a940..0c6700fbf 100644
--- a/libpod/util.go
+++ b/libpod/util.go
@@ -4,13 +4,14 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"time"
 
 	"github.com/containers/image/signature"
 	"github.com/containers/image/types"
+	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/pkg/errors"
-	"strconv"
 )
 
 // Runtime API constants
@@ -96,3 +97,13 @@ func RemoveScientificNotationFromFloat(x float64) (float64, error) {
 	}
 	return result, nil
 }
+
+// MountExists returns true if dest exists in the list of mounts
+func MountExists(specMounts []spec.Mount, dest string) bool {
+	for _, m := range specMounts {
+		if m.Destination == dest {
+			return true
+		}
+	}
+	return false
+}