Dokploy · mahdirajaee · Apr 27, 2025 · May 5, 2025 · May 5, 2025 · May 6, 2025
@@ -319,8 +319,17 @@ export function extractImageTag(dockerImage: string | null) {
 		return null;
 	}
 
-	const tag = dockerImage.split(":").pop();
-	return tag === dockerImage ? "latest" : tag;
+	const lastColonIndex = dockerImage.lastIndexOf(":");
+	if (lastColonIndex === -1) {
+		return "latest";
+	}
+
+	const afterColon = dockerImage.substring(lastColonIndex + 1);
+	if (/^\d{1,5}$/.test(afterColon)) {
+		return "latest";
+	}
+
+	return afterColon;
-	const afterColon = dockerImage.substring(lastColonIndex + 1);
-	if (/^\d{1,5}$/.test(afterColon)) {
-		return "latest";
-	}
-
-	return afterColon;
+	const afterColon = dockerImage.substring(lastColonIndex + 1);
+	// Matches a port number either alone (registry:5000) or followed by a path
+	// (registry:5000/image).  Pure-digit tags without a slash are ambiguous but
+	// consistent with the behaviour of extractImageName.
+	if (/^\d{1,5}(\/|$)/.test(afterColon)) {
+		return "latest";
+	}
+
+	return afterColon;
-	const afterColon = dockerImage.substring(lastColonIndex + 1);
-	if (/^\d{1,5}$/.test(afterColon)) {
-		return "latest";
-	}
-
-	return afterColon;
+	const afterColon = dockerImage.substring(lastColonIndex + 1);
+	// Matches a port number either alone (registry:5000) or followed by a path
+	// (registry:5000/image).  Pure-digit tags without a slash are ambiguous but
+	// consistent with the behaviour of extractImageName.
+	if (/^\d{1,5}(\/|$)/.test(afterColon)) {
+		return "latest";
+	}
+
+	return afterColon;
 }
 
 /**