add first supervisor process

dist/supervisorTemplate.json

@@ -0,0 +1,10 @@
+{
+"processes":[{
+    "name":"Database DBM",
+    "executePath":"dist/test-windows-amd64.exe",
+    "workingDirectory":".",
+    "startDelay":2,
+    "priority":0
+}
+]
+}

models/supervisor.go

@@ -0,0 +1,57 @@
+package models
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"sort"
+)
+
+type Supervisor struct {
+	Processes []*SupervisorProcess `json:"processes"`
+}
+
+type SupervisorProcess struct {
+	Name             string    `json:"name"`
+	ExecutePath      string    `json:"executePath"`
+	WorkingDirectory string    `json:"workingDirectory,omitempty"`
+	StartDelay       int       `json:"startDelay,omitempty"`
+	Priority         int       `json:"priority,omitempty"`
+	Arguments        []string  `json:"arguments,omitempty"`
+	process          *exec.Cmd `json:"-"`
+}
+
+func ReadTemplate(path string) (supervisor Supervisor, err error) {
+	content, err := os.ReadFile(path)
+	if err != nil {
+		return
+	}
+
+	err = json.Unmarshal(content, &supervisor)
+	return
+}
+
+func (s *Supervisor) StartProcesses() error {
+	sort.Slice(s.Processes, func(i, j int) bool {
+		return s.Processes[i].Priority < s.Processes[j].Priority
+	})
+
+	for _, p := range s.Processes {
+		go func() {
+			p.process = exec.Command(p.ExecutePath, p.Arguments...)
+			//cmd.Env = append(cmd.Env, "MY_VAR=some_value")
+			p.process.Dir = p.WorkingDirectory
+
+			output, err := p.process.Output()
+			if err != nil {
+				fmt.Println("Error:", err)
+			}
+
+			fmt.Println("Output:", string(output))
+		}()
+	}
+	fmt.Println(3)
+
+	return nil
+}