Read log level from config file

Try to read the script log level from config file, if that fails, use
yggdrasil default log level, and if that's not set, use "INFO" as the
default one.

src/runner.go

@@ -72,7 +72,8 @@ func verifyYamlFile(yamlData []byte) bool {
 	return true
 }
 
-func setEnvVariablesFromYaml(cmd *exec.Cmd, variables map[string]string) {
+func setEnvVariablesForCommand(cmd *exec.Cmd, variables map[string]string) {
+	cmd.Env = os.Environ()
 	getEnvVarName := func(key string) string {
 		return fmt.Sprintf("RHC_WORKER_%s", strings.ToUpper(key))
 	}
@@ -128,8 +129,7 @@ func processSignedScript(incomingContent []byte) string {
 
 	variables := yamlContent.Vars.ContentVars
 	variables["LOG_LEVEL"] = *config.ScriptLogLevel
-	setEnvVariablesFromYaml(cmd, variables)
-	log.Infoln("Script is being executed with following env variables: ", cmd.Env)
+	setEnvVariablesForCommand(cmd, variables)
 
 	out, err := cmd.CombinedOutput()
 	if err != nil {

src/runner_test.go

@@ -35,11 +35,13 @@ func TestProcessSignedScript(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			scriptLogLevel := "info"
 			shouldVerifyYaml := tc.verifyYAML
 			temporaryWorkerDirectory := t.TempDir()
 			config = &Config{
 				VerifyYAML:               &shouldVerifyYaml,
 				TemporaryWorkerDirectory: &temporaryWorkerDirectory,
+				ScriptLogLevel:           &scriptLogLevel,
 			}
 
 			defer os.RemoveAll(temporaryWorkerDirectory)
@@ -161,8 +163,8 @@ func TestSetEnvVariablesForCommand(t *testing.T) {
 			anotherCmd := exec.Command("echo", "Bye, World!")
 
 			// Call the functions to set env variables for the commands
-			setEnvVariablesFromYaml(cmd, tc.variables)
-			setEnvVariablesFromYaml(anotherCmd, tc.anotherCmdVariables)
+			setEnvVariablesForCommand(cmd, tc.variables)
+			setEnvVariablesForCommand(anotherCmd, tc.anotherCmdVariables)
 
 			// Check if the global environment variables are unchanged
 			if !areStringSlicesSubset(originalEnv, os.Environ()) {

src/server_test.go

@@ -112,11 +112,13 @@ func TestProcessData(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
+			scriptLogLevel := "info"
 			shouldVerifyYaml := false
 			temporaryWorkerDirectory := t.TempDir()
 			config = &Config{
 				VerifyYAML:               &shouldVerifyYaml,
 				TemporaryWorkerDirectory: &temporaryWorkerDirectory,
+				ScriptLogLevel: &scriptLogLevel,
 			}
 
 			returnURL := "bar"