fix(agent): detection robuste du statut instances avec fallback ps -q (v0.2.1)

agent/build.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-VERSION="0.2.0"
+VERSION="0.2.1"
 LDFLAGS="-X main.version=${VERSION}"
 
 echo "Building EduBox Agent v${VERSION}..."

agent/instance.go

@@ -85,23 +85,18 @@ func getInstanceStatus(dataDir, instanceID string) string {
 	}
 
 	engine := getContainerEngine()
+
+	// Try modern JSON format first
 	cmd := exec.Command(engine, "compose", "-f", composeFile, "ps", "--format", "json")
 	out, err := cmd.Output()
-	if err != nil {
+	if err == nil {
-		return "error"
-	}
-
 		outStr := strings.TrimSpace(string(out))
 		if outStr == "" || outStr == "[]" {
 			return "stopped"
 		}
-
-	// Docker compose JSON output can be a single object or an array
 		if strings.HasPrefix(outStr, "[") {
 			var containers []map[string]interface{}
-		if err := json.Unmarshal(out, &containers); err != nil {
+			if err := json.Unmarshal(out, &containers); err == nil {
-			return "error"
-		}
 				for _, c := range containers {
 					state, _ := c["State"].(string)
 					if state == "running" {
@@ -110,14 +105,26 @@ func getInstanceStatus(dataDir, instanceID string) string {
 				}
 				return "stopped"
 			}
-
+		} else {
 			var c map[string]interface{}
-	if err := json.Unmarshal(out, &c); err != nil {
+			if err := json.Unmarshal(out, &c); err == nil {
-		return "error"
-	}
 				state, _ := c["State"].(string)
 				if state == "running" {
 					return "running"
 				}
 				return "stopped"
+			}
+		}
+	}
+
+	// Fallback: use "ps -q" which is supported by all docker-compose versions
+	cmd = exec.Command(engine, "compose", "-f", composeFile, "ps", "-q")
+	out, err = cmd.Output()
+	if err != nil {
+		return "error"
+	}
+	if strings.TrimSpace(string(out)) != "" {
+		return "running"
+	}
+	return "stopped"
 }