Add detached exec option to Docker manager

Merging dockerfile update into gitea updated code

README.md

@@ -11,8 +11,10 @@ It offers a clean, interactive menu for common Docker operations like pulling im
 - 🔹 **Interactive container management** — start, stop, remove, or attach to containers with simple numbered menus.
 - 🔹 **Port mapping made clear** — automatically prompts for and explains host ↔ container port bindings.
 - 🔹 **Image operations** — pull, list, and delete Docker images.
+- 🔹 **Script-to-image workflow** — turn a bash setup script into a Dockerfile and build the resulting image in one go.
 - 🔹 **Quick MySQL setup** — spin up a MySQL container with version, password, and port configuration in seconds.
 - 🔹 **Get container IP address** — cleanly retrieves and displays only the container’s assigned IP.
+- 🔹 **Run detached commands** — execute background jobs inside a container without attaching an interactive shell.
 - 🔹 **Modern C++ design** — built with classes, minimal dependencies, and clear abstractions.
 
 ---
@@ -57,9 +59,11 @@ Tux-Dock: Docker Management Menu
 8.  Stop Container
 9.  Remove Container
 10. Attach Shell to Running Container
-11. Spin Up MySQL Container
-12. Get Container IP Address
-13. Exit
+11. Run Detached Command in Container
+12. Spin Up MySQL Container
+13. Get Container IP Address
+14. Create Dockerfile & Build Image from Bash Script
+15. Exit
 ```
 
 Each action guides you through the required steps.
@@ -90,6 +94,7 @@ class DockerManager {
     void runContainerInteractive();
     void listContainers() const;
     void startInteractive();
+    void execDetachedCommand();
     void stopContainer();
     void showContainerIP();
 };

main.cpp

@@ -4,6 +4,9 @@
 #include <cstdlib>
 #include <sstream>
 #include <array>
+#include <fstream>
+#include <filesystem>
+#include <limits>
 
 using namespace std;
 
@@ -19,6 +22,8 @@ public:
     void stopContainer();
     void removeContainer();
     void execShell();
+    void execDetachedCommand();
+    void createDockerfile();
     void spinUpMySQL();
     void showContainerIP();
 
@@ -150,6 +155,35 @@ void DockerManager::execShell() {
     if (!id.empty()) runCommand("docker exec -it " + id + " /bin/sh");
 }
 
+void DockerManager::execDetachedCommand() {
+    string id = selectContainer("Select container to run command in (detached)");
+    if (id.empty()) return;
+
+    // Flush any leftover newline before using getline
+    cin.ignore(numeric_limits<streamsize>::max(), '\n');
+
+    string command;
+    cout << "Enter command to execute inside the container: ";
+    getline(cin, command);
+
+    if (command.empty()) {
+        cout << "No command entered. Aborting.\n";
+        return;
+    }
+
+    string escapedCommand;
+    escapedCommand.reserve(command.size() * 2);
+    for (char c : command) {
+        if (c == '"' || c == '\\')
+            escapedCommand += '\\';
+        escapedCommand += c;
+    }
+
+    cout << "Executing command in detached mode...\n";
+    runCommand("docker exec -d " + id + " /bin/sh -c \"" + escapedCommand + "\"");
+    cout << "Command dispatched.\n";
+}
+
 void DockerManager::spinUpMySQL() {
     string port, password, version;
     cout << "Enter port mapping (e.g., 3306:3306): ";
@@ -193,6 +227,66 @@ void DockerManager::showContainerIP() {
         cout << "Container IP Address: " << ip;
 }
 
+void DockerManager::createDockerfile() {
+    string baseImage, bashScriptPath, outputFile, imageName;
+    cout << "Enter base Docker image (e.g., ubuntu:22.04): ";
+    cin >> baseImage;
+
+    cout << "Enter path to bash script to convert (e.g., setup.sh): ";
+    cin >> bashScriptPath;
+
+    if (!filesystem::exists(bashScriptPath)) {
+        cout << "Error: Bash script not found.\n";
+        return;
+    }
+
+    cout << "Enter output Dockerfile name (e.g., Dockerfile or Dockerfile_app): ";
+    cin >> outputFile;
+
+    if (outputFile.empty()) outputFile = "Dockerfile";
+
+    ifstream scriptFile(bashScriptPath);
+    ofstream dockerfile(outputFile);
+
+    if (!scriptFile.is_open() || !dockerfile.is_open()) {
+        cout << "Error: Unable to open file(s).\n";
+        return;
+    }
+
+    // Write Dockerfile header
+    dockerfile << "FROM " << baseImage << "\n";
+    dockerfile << "WORKDIR /app\n\n";
+    dockerfile << "# Auto-generated by Tux-Dock\n";
+
+    string line;
+    while (getline(scriptFile, line)) {
+        if (line.empty()) continue;
+
+        // Skip comments or shebang
+        if (line.rfind("#", 0) == 0 || line.rfind("#!", 0) == 0)
+            continue;
+
+        dockerfile << "RUN " << line << "\n";
+    }
+
+    dockerfile << "\nCMD [\"/bin/bash\"]\n";
+    dockerfile.close();
+    scriptFile.close();
+
+    cout << "Dockerfile created successfully: " << outputFile << "\n";
+    cout << "Enter image name to build from this Dockerfile (e.g., myimage): ";
+    cin >> imageName;
+
+    if (imageName.empty()) {
+        cout << "No image name provided. Skipping build.\n";
+        return;
+    }
+
+    cout << "Building Docker image '" << imageName << "'...\n";
+    runCommand("docker build -t " + imageName + " -f " + outputFile + " .");
+    cout << "Docker build command executed.\n";
+}
+
 // ---------------- Menu ----------------
 
 int main() {
@@ -212,9 +306,11 @@ int main() {
              << "8.  Stop Container\n"
              << "9.  Remove Container\n"
              << "10. Attach Shell to Running Container\n"
-             << "11. Spin Up MySQL Container\n"
-             << "12. Get Container IP Address\n"
-             << "13. Exit\n"
+             << "11. Run Detached Command in Container\n"
+             << "12. Spin Up MySQL Container\n"
+             << "13. Get Container IP Address\n"
+             << "14. Create Dockerfile & Build Image from Bash Script\n"
+             << "15. Exit\n"
              << "----------------------------------\n"
              << "Choose an option: ";
 
@@ -231,9 +327,11 @@ int main() {
             case 8: docker.stopContainer(); break;
             case 9: docker.removeContainer(); break;
             case 10: docker.execShell(); break;
-            case 11: docker.spinUpMySQL(); break;
-            case 12: docker.showContainerIP(); break;
-            case 13:
+            case 11: docker.execDetachedCommand(); break;
+            case 12: docker.spinUpMySQL(); break;
+            case 13: docker.showContainerIP(); break;
+            case 14: docker.createDockerfile(); break;
+            case 15:
                 cout << "Exiting Tux-Dock.\n";
                 return 0;
             default:
@@ -241,4 +339,3 @@ int main() {
         }
     }
 }
-

option13_script.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+echo "Setting up application directory"
+mkdir -p /app/bin
+echo '#!/bin/bash' > /app/bin/run.sh
+echo 'echo "Hello from Tux-Dock generated image"' >> /app/bin/run.sh
+chmod +x /app/bin/run.sh