Add --default-mounts-file hidden flag

The hidden flag is used to override the path of the default mounts file
for testing purposes.
Also modified the secrets pkg to allow for this override to happen.

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

Closes: #678
Approved by: mheon

1 files changed, 7 insertions, 2 deletions

diff --git a/pkg/secrets/secrets.go b/pkg/secrets/secrets.go
index 9b328575b..54d1ae5ad 100644
--- a/pkg/secrets/secrets.go
+++ b/pkg/secrets/secrets.go
@@ -127,10 +127,15 @@ func getMountsMap(path string) (string, string, error) {
 }
 
 // SecretMounts copies, adds, and mounts the secrets to the container root filesystem
-func SecretMounts(mountLabel, containerWorkingDir string) []rspec.Mount {
+func SecretMounts(mountLabel, containerWorkingDir string, mountFile []string) []rspec.Mount {
 	var secretMounts []rspec.Mount
 	// Add secrets from paths given in the mounts.conf files
-	for _, file := range []string{OverrideMountsFile, DefaultMountsFile} {
+	// mountFile will have a value if the hidden --default-mounts-file flag is set
+	// Note for testing purposes only
+	if len(mountFile) == 0 {
+		mountFile = append(mountFile, []string{OverrideMountsFile, DefaultMountsFile}...)
+	}
+	for _, file := range mountFile {
 		mounts, err := addSecretsFromMountsFile(file, mountLabel, containerWorkingDir)
 		if err != nil {
 			logrus.Warnf("error mounting secrets, skipping: %v", err)