From a9e354b8b094c5b03bb319368ded467b7f4ed7ae Mon Sep 17 00:00:00 2001
From: Radim Loskot <radim.loskot@gmail.com>
Date: Mon, 1 Jul 2019 17:40:41 +0200
Subject: [PATCH] feat(runImage): allow environment variables using config

---
 .soos.json |  6 +++++-
 soos.go    | 29 +++++++++++++++++++----------
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/.soos.json b/.soos.json
index bd3f12b..29ba60e 100644
--- a/.soos.json
+++ b/.soos.json
@@ -6,5 +6,9 @@
     ],
     "ExposePorts": [
         "3000:3000"
-    ]
+    ],
+    "EnvVariables": {
+        "BUILD_VERSION": "1.2.3",
+        "BUILD_ENV": "test"
+    }
 }
diff --git a/soos.go b/soos.go
index e17bc13..8cb5478 100644
--- a/soos.go
+++ b/soos.go
@@ -17,9 +17,10 @@ import (
 
 // Configuration : represent .soos.json structure
 type Configuration struct {
-	ImageName   string
-	ExposePorts []string
-	HashFiles   []string
+	ImageName    string
+	ExposePorts  []string
+	HashFiles    []string
+	EnvVariables map[string]string
 }
 
 // DefaultConfig : base for .soos.json
@@ -146,22 +147,30 @@ func cwd() string {
 }
 
 func runImage(imageNameWithTag string) {
-
-	args := []string{"run"}
-
 	user, userErr := user.Current()
 	if userErr != nil {
 		log.Fatal(userErr)
 	}
 
+	dockerRunOptions := []string{"--rm", "-u", user.Uid + ":" + user.Gid, "-v", cwd() + ":/build/app"}
+
 	if len(getConfig().ExposePorts) != 0 {
-		exposePortsArg := "-p" + getConfig().ExposePorts[0]
-		args = append([]string{"run", "--rm", "-u", user.Uid + ":" + user.Gid, exposePortsArg, "-v", cwd() + ":/build/app", imageNameWithTag}, os.Args[1:]...)
-	} else {
+		for _, exposePort := range getConfig().ExposePorts {
+			dockerRunOptions = append(dockerRunOptions, "-p"+exposePort)
+		}
+	}
 
-		args = append([]string{"run", "--rm", "-u", user.Uid + ":" + user.Gid, "-v", cwd() + ":/build/app", imageNameWithTag}, os.Args[1:]...)
+	if len(getConfig().EnvVariables) != 0 {
+		for envVarName, envVarValue := range getConfig().EnvVariables {
+			dockerRunOptions = append(dockerRunOptions, "-e", envVarName+"="+envVarValue)
+		}
 	}
 
+	args := []string{"run"}
+	args = append(args, dockerRunOptions...)
+	args = append(args, imageNameWithTag)
+	args = append(args, os.Args[1:]...)
+
 	cmd := exec.Command("docker", args...)
 
 	var out bytes.Buffer