update: Added Longhorn installation process and updated memory allocation for VMs

update: Added 'git' and 'vagrant' to required tools in pre-flight checks

fix: configured k3s install to use internal nic for flanel network

update: Added Longhorn installation process and updated memory allocation for VMs

update: Added 'git' and 'vagrant' to required tools in pre-flight checks

fix: configured k3s install to use internal nic for flanel network

fix: corrected JSON formatting for config json

update: reduce VM memory allocation to 2GB, add Longhorn installation scripts and prerequisites, and implement checks for existing pods

update: improve error logging in RunJsonDeployment and RunCommand functions

update: add jq installation to provision script

update: add version flag

app/app.go

@@ -66,12 +66,13 @@ func (app *AppState) RunJsonDeployment() []PipelineStep {
 
 	jsonFile := app.Config.DeploymentFile
 	if jsonFile == "" {
-		log.Fatal("no config specified with --deployment-file=<path_to_config_file>")
+		log.Fatal("no config specified with [-f|--deployment-file]=<path_to_config_file>")
 	}
 
 	file, err := os.Open(jsonFile)
 	if err != nil {
 		slog.Error(fmt.Sprintf("Failed to open JSON file: %s", err))
+		os.Exit(1)
 	}
 
 	defer file.Close()
@@ -212,8 +213,6 @@ func (app *AppState) CreatePipeline() error {
 		slog.Info(fmt.Sprintln("Project name added:", app.Customer.Project))
 		fmt.Printf("Port number assigned: %d\n", port)
 		app.Config.Port = port
-	} else {
-		slog.Info(fmt.Sprintln("Project name already exists:", app.Customer.Project))
 	}
 
 	err = app.SetUpNewCustomer()

app/k8s.go

@@ -102,7 +102,7 @@ func RunCommand(command string) error {
 		for scanner.Scan() {
 			line := scanner.Text()
 			stderr.WriteString(line + "\n")
-			slog.Error(line)
+			slog.Info(line)
 		}
 	}()