fix issue https://github.com/kubernetes/kompose/issues/1683 (#1684)

* fix issue https://github.com/kubernetes/kompose/issues/1683

* add tests, die if inputfiles not specified

* fix GetComposeFileDir function and use it

* use fixed GetComposeFileDir instead of filepath.Dir

* return error instead of fatal

* add pod configmap creation to openshift

pkg/app/app.go

@@ -18,6 +18,7 @@ package app
 
 import (
 	"fmt"
+	"path/filepath"
 	"strings"
 
 	log "github.com/sirupsen/logrus"
@@ -224,6 +225,31 @@ func Convert(opt kobject.ConvertOptions) ([]runtime.Object, error) {
 
 	komposeObject.Namespace = opt.Namespace
 
+	// Get the directory of the compose file
+	workDir, err := transformer.GetComposeFileDir(opt.InputFiles)
+	if err != nil {
+		log.Fatalf("Unable to get compose file directory: %s", err)
+	}
+
+	// convert env_file from absolute to relative path
+	for _, service := range komposeObject.ServiceConfigs {
+		if len(service.EnvFile) <= 0 {
+			continue
+		}
+		for i, envFile := range service.EnvFile {
+			if !filepath.IsAbs(envFile) {
+				continue
+			}
+
+			relPath, err := filepath.Rel(workDir, envFile)
+			if err != nil {
+				log.Fatalf(err.Error())
+			}
+
+			service.EnvFile[i] = filepath.ToSlash(relPath)
+		}
+	}
+
 	// Get a transformer that maps komposeObject to provider's primitives
 	t := getTransformer(opt)