Fix docker style cert loading.

The certs dir parsing was skipping over files instead of reading them,
as such the certs would never load.

It was also stating the file name rather than the full path for cert
pairs.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

remotes/docker/config/hosts.go

@@ -82,7 +82,6 @@ func ConfigureHosts(ctx context.Context, options HostOptions) docker.RegistryHos
 					return nil, err
 				}
 			}
-
 		}
 
 		// If hosts was not set, add a default host
@@ -490,7 +489,7 @@ func loadCertFiles(ctx context.Context, certsDir string) ([]hostConfig, error) {
 	}
 	hosts := make([]hostConfig, 1)
 	for _, f := range fs {
-		if !f.IsDir() {
+		if f.IsDir() {
 			continue
 		}
 		if strings.HasSuffix(f.Name(), ".crt") {
@@ -501,9 +500,9 @@ func loadCertFiles(ctx context.Context, certsDir string) ([]hostConfig, error) {
 			certFile := f.Name()
 			pair[0] = filepath.Join(certsDir, certFile)
 			// Check if key also exists
-			keyFile := certFile[:len(certFile)-5] + ".key"
+			keyFile := filepath.Join(certsDir, certFile[:len(certFile)-5]+".key")
 			if _, err := os.Stat(keyFile); err == nil {
-				pair[1] = filepath.Join(certsDir, keyFile)
+				pair[1] = keyFile
 			} else if !os.IsNotExist(err) {
 				return nil, err
 			}