diff --git a/kyaml/kio/filters/container.go b/kyaml/kio/filters/container.go
index 8d327ccf2..aa929a644 100644
--- a/kyaml/kio/filters/container.go
+++ b/kyaml/kio/filters/container.go
@@ -32,7 +32,7 @@ type ContainerFilter struct {
 	// Network is the container network to use.
 	Network string `yaml:"network,omitempty"`
 
-	// List of storage options that container will have mounted.
+	// StorageMounts is a list of storage options that the container will have mounted.
 	StorageMounts []StorageMount
 
 	// Config is the API configuration for the container and passed through the
@@ -49,22 +49,20 @@ type ContainerFilter struct {
 // StorageMount represents a container's mounted storage option(s)
 type StorageMount struct {
 	// Type of mount e.g. bind mount, local volume, etc.
-	mountType string
+	MountType string
 
 	// Source for the storage to be mounted.
 	// For named volumes, this is the name of the volume.
 	// For anonymous volumes, this field is omitted (empty string).
 	// For bind mounts, this is the path to the file or directory on the host.
-	src string
+	Src string
 
 	// The path where the file or directory is mounted in the container.
-	dstPath string
+	DstPath string
 }
 
-// AddStorageMount adds a mounted storage option to the Container
-func (c *ContainerFilter) AddStorageMount(mountType, src, dstPath string) {
-	storageMount := StorageMount{mountType, src, dstPath}
-	c.StorageMounts = append(c.StorageMounts, storageMount)
+func (s *StorageMount) String() string {
+	return fmt.Sprintf("type=%s,src=%s,dst=%s:ro", s.MountType, s.Src, s.DstPath)
 }
 
 // GrepFilter implements kio.GrepFilter
@@ -127,11 +125,7 @@ func (c *ContainerFilter) getArgs() []string {
 
 	// TODO(joncwong): Allow StorageMount fields to have default values.
 	for _, storageMount := range c.StorageMounts {
-		mountType := storageMount.mountType
-		src := storageMount.src
-		dstPath := storageMount.dstPath
-
-		args = append(args, "--mount", fmt.Sprintf("'type=%s,src=%s,dst=%s:ro'", mountType, src, dstPath))
+		args = append(args, "--mount", storageMount.String())
 	}
 
 	// export the local environment vars to the container
diff --git a/kyaml/kio/filters/container_test.go b/kyaml/kio/filters/container_test.go
index f64b38f6d..336ba0e8e 100644
--- a/kyaml/kio/filters/container_test.go
+++ b/kyaml/kio/filters/container_test.go
@@ -90,9 +90,9 @@ metadata:
 		"--network", "none",
 		"--user", "nobody",
 		"--security-opt=no-new-privileges",
-		"--mount", fmt.Sprintf("'type=%s,src=%s,dst=%s:ro'", "bind", "/mount/path", "/local/"),
-		"--mount", fmt.Sprintf("'type=%s,src=%s,dst=%s:ro'", "volume", "myvol", "/local/"),
-		"--mount", fmt.Sprintf("'type=%s,src=%s,dst=%s:ro'", "tmpfs", "", "/local/"),
+		"--mount", fmt.Sprintf("type=%s,src=%s,dst=%s:ro", "bind", "/mount/path", "/local/"),
+		"--mount", fmt.Sprintf("type=%s,src=%s,dst=%s:ro", "volume", "myvol", "/local/"),
+		"--mount", fmt.Sprintf("type=%s,src=%s,dst=%s:ro", "tmpfs", "", "/local/"),
 	}
 	for _, e := range os.Environ() {
 		// the process env
diff --git a/kyaml/runfn/runfn.go b/kyaml/runfn/runfn.go
index dd7faabb2..366aaa519 100644
--- a/kyaml/runfn/runfn.go
+++ b/kyaml/runfn/runfn.go
@@ -16,6 +16,8 @@ import (
 // RunFns runs the set of configuration functions in a local directory against
 // the Resources in that directory
 type RunFns struct {
+	StorageMounts []filters.StorageMount
+
 	// Path is the path to the directory containing functions
 	Path string
 
@@ -90,7 +92,9 @@ func (r *RunFns) init() {
 	// if containerFilterProvider hasn't been set, use the default
 	if r.containerFilterProvider == nil {
 		r.containerFilterProvider = func(image, path string, api *yaml.RNode) kio.Filter {
-			cf := &filters.ContainerFilter{Image: image, Config: api}
+			defaultMount := filters.StorageMount{}
+			r.StorageMounts = append(r.StorageMounts, defaultMount)
+			cf := &filters.ContainerFilter{Image: image, Config: api, StorageMounts: r.StorageMounts}
 			return cf
 		}
 	}
diff --git a/kyaml/runfn/runfn_test.go b/kyaml/runfn/runfn_test.go
index ef55a401d..5ca3ce76a 100644
--- a/kyaml/runfn/runfn_test.go
+++ b/kyaml/runfn/runfn_test.go
@@ -28,7 +28,10 @@ kind:
 		return
 	}
 	filter := instance.containerFilterProvider("example.com:version", "", api)
-	assert.Equal(t, &filters.ContainerFilter{Image: "example.com:version", Config: api}, filter)
+	defaultMount:= filters.StorageMount{}
+	mounts := []filters.StorageMount{}
+	mounts = append(mounts, defaultMount)
+	assert.Equal(t, &filters.ContainerFilter{Image: "example.com:version", Config: api, StorageMounts: mounts}, filter)
 }
 
 func TestCmd_Execute(t *testing.T) {