feat: Clone (qm clone) + Copy (re-convert) buttons on completion

After conversion completes, the user sees a form with VM Name and ID
prefilled, and three buttons:

- Clone (instant): qm clone --full via backend, takes seconds
- Copy (re-convert): shows CPU/RAM/Disk fields, re-runs full pipeline
- Clean Up & Finish: deletes staging, returns to start page

Backend: new /api/v1/clone endpoint → provisioner.clone_vm()
Frontend: new /session/clone proxy, api_client.clone_vm()

backend/app.py

@@ -22,11 +22,12 @@ from models import (
     CleanupResponse,
     AnalyzeRequest,
     AnalyzeResponse,
+    CloneRequest,
     HealthResponse,
     ErrorResponse,
 )
 from converter import extract_if_needed, discover_disk, detect_os, detect_efi
-from provisioner import submit_job, get_job_status, cleanup_staging
+from provisioner import submit_job, get_job_status, cleanup_staging, clone_vm
 
 # ---------------------------------------------------------------------------
 # Logging
@@ -170,6 +171,17 @@ def cleanup_job(job_id: str, req: CleanupRequest) -> CleanupResponse:
     )
 
 
+@app.post(f"{API_PREFIX}/clone", response_model=JobStatusResponse, status_code=202)
+def clone_vm_endpoint(req: CloneRequest) -> JobStatusResponse:
+    """Clone an existing VM with a new ID and name."""
+    logger.info("Clone request: %d → %d (%s)", req.source_vmid, req.target_vmid, req.target_name)
+    try:
+        return clone_vm(req)
+    except Exception as exc:
+        logger.error("Clone failed: %s", exc)
+        raise HTTPException(status_code=400, detail=str(exc))
+
+
 # ---------------------------------------------------------------------------
 # Run
 # ---------------------------------------------------------------------------

backend/models.py

@@ -110,3 +110,8 @@ class CleanupResponse(BaseModel):
     job_id: str
     action_taken: str  # "purged" | "retained"
     message: str
+
+class CloneRequest(BaseModel):
+    source_vmid: int
+    target_vmid: int
+    target_name: str

backend/provisioner.py

@@ -21,6 +21,7 @@ from typing import Optional
 from models import (
     JobSubmissionRequest,
     JobStatusResponse,
+    CloneRequest,
     JobStatus,
     DiskType,
     BootType,
@@ -88,6 +89,34 @@ def get_job_status(job_id: str) -> JobStatusResponse:
     )
 
 
+def clone_vm(req: CloneRequest) -> JobStatusResponse:
+    """qm clone — instant full clone of an existing VM."""
+    safe_name = re.sub(r'[^a-zA-Z0-9-]', '-', req.target_name).strip('-').lower()
+    if not safe_name:
+        safe_name = f"vm-{req.target_vmid}"
+
+    job_id = f"clone_{req.source_vmid}_{req.target_vmid}_{int(time.time())}"
+    logger.info("Cloning VM %d → %d (%s)", req.source_vmid, req.target_vmid, safe_name)
+
+    try:
+        _run(["qm", "clone", str(req.source_vmid), str(req.target_vmid),
+              "--name", safe_name, "--full"], timeout=600)
+    except Exception as exc:
+        logger.error("Clone failed: %s", exc)
+        return JobStatusResponse(
+            job_id=job_id, vmid=req.target_vmid,
+            status=JobStatus.FAILED, progress_percentage=0,
+            message="Clone failed", error_details=str(exc),
+        )
+
+    logger.info("Clone complete: %d → %d", req.source_vmid, req.target_vmid)
+    return JobStatusResponse(
+        job_id=job_id, vmid=req.target_vmid,
+        status=JobStatus.COMPLETED, progress_percentage=100,
+        message=f"VM {req.target_vmid} cloned from {req.source_vmid}",
+    )
+
+
 def cleanup_staging(vmid: int, delete: bool) -> dict:
     """Remove staging files for a VM ID."""
     out_dir = STAGING_OUT / str(vmid)

frontend/api_client.py

@@ -63,6 +63,14 @@ class ApiClient:
         """POST /api/v1/jobs/{job_id}/cleanup — remove or keep staging files."""
         return self._post(f"/api/v1/jobs/{job_id}/cleanup", {"delete_staging_files": delete})
 
+    def clone_vm(self, source_vmid: int, target_vmid: int, target_name: str) -> dict:
+        """POST /api/v1/clone — clone an existing VM."""
+        return self._post("/api/v1/clone", {
+            "source_vmid": source_vmid,
+            "target_vmid": target_vmid,
+            "target_name": target_name,
+        })
+
     # ------------------------------------------------------------------
     # Internal
     # ------------------------------------------------------------------

frontend/app.py

@@ -500,6 +500,21 @@ async def session_cleanup(job_id: str, request: Request):
         return JSONResponse({"error": exc.detail}, status_code=502)
 
 
+@app.post("/session/clone")
+async def session_clone(request: Request):
+    """Proxy clone request to backend."""
+    try:
+        body = await request.json()
+        result = api.clone_vm(
+            source_vmid=body["source_vmid"],
+            target_vmid=body["target_vmid"],
+            target_name=body["target_name"],
+        )
+        return result
+    except ApiError as exc:
+        return JSONResponse({"error": exc.detail}, status_code=502)
+
+
 # ---------------------------------------------------------------------------
 # Run
 # ---------------------------------------------------------------------------

frontend/templates/index.html

@@ -295,10 +295,18 @@ function initPolling() {
   let completed = false;
 
   // Reuse buttons
-  document.getElementById('btn-reuse-yes').onclick = () => {
+  const prevVmid = parseInt(vmid) || 21000;
-    document.getElementById('reuse-form-wrap').classList.remove('hidden');
+  const srcFilename = sourceFilename || '';
+
+  document.getElementById('reuse-vmid').value = prevVmid + 1;
+  document.getElementById('reuse-vmname').value = (srcFilename.split('.')[0] || 'vm') + '-2';
+
+  document.getElementById('btn-clone').onclick = () => cloneVM(jobId, vmid);
+  document.getElementById('btn-copy').onclick = () => {
+    document.getElementById('copy-options').classList.remove('hidden');
   };
-  document.getElementById('btn-reuse-no').onclick  = () => reuseImage(jobId, vmid, sourceFilename, false);
+  document.getElementById('btn-cleanup').onclick = () => reuseImage(jobId, vmid, sourceFilename, false);
+  document.getElementById('btn-copy-start').onclick = () => copyVM(jobId, vmid, sourceFilename);
 
   async function poll() {
     try {
@@ -356,52 +364,54 @@ async function reuseImage(jobId, vmid, sourceFilename, keep) {
   try {
     await fetch('/session/cleanup/' + jobId, {
       method: 'POST', headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ delete_staging_files: !keep }),
+      body: JSON.stringify({ delete_staging_files: true }),
     });
-    if (keep) {
+    window.location.href = '/';
-      window.location.href = '/?vmid=' + vmid + '&source=' + encodeURIComponent(sourceFilename);
-    } else {
-      window.location.href = '/';
-    }
   } catch (err) { alert('Cleanup failed: ' + err.message); }
 }
 
-async function submitReuse(e) {
+async function cloneVM(jobId, sourceVmid) {
-  e.preventDefault();
+  const newVmid = parseInt(document.getElementById('reuse-vmid').value) || 0;
-  const newVmid = document.getElementById('reuse-vmid').value;
+  const newName = document.getElementById('reuse-vmname').value.trim();
-  const newVmName = document.getElementById('reuse-vmname').value.trim();
+  if (!newVmid || !newName) { alert('Please fill VM Name and ID.'); return; }
   const status = document.getElementById('reuse-submit-status');
   status.classList.remove('hidden');
-  status.innerHTML = '<div class="spinner"></div> Submitting job...';
+  status.innerHTML = '<div class="spinner"></div> Cloning VM...';
-
-  // Get original job data from the container
-  const container = document.getElementById('polling-container');
-  const sourceFilename = container.dataset.sourceFilename;
-  const jobId = container.dataset.jobId;
-
-  // Get the analysis data from the completed job's backend
-  let analysis;
   try {
-    const resp = await fetch('/session/status/' + jobId);
+    const resp = await fetch('/session/clone', {
-    analysis = await resp.json();
+      method: 'POST', headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ source_vmid: sourceVmid, target_vmid: newVmid, target_name: newName }),
+    });
+    const data = await resp.json();
+    if (data.status === 'completed') {
+      status.innerHTML = '<div class="success">VM ' + newVmid + ' cloned successfully!</div>';
+    } else {
+      status.innerHTML = '<div class="error">Clone failed: ' + (data.error_details || 'Unknown') + '</div>';
+    }
   } catch (err) {
-    status.innerHTML = '<div class="error">Failed to fetch job data.</div>';
+    status.innerHTML = '<div class="error">Clone failed: ' + err.message + '</div>';
-    return;
   }
+}
 
-  // Build payload using same disk settings as first VM
+async function copyVM(jobId, vmid, sourceFilename) {
+  const newVmid = parseInt(document.getElementById('reuse-vmid').value) || 0;
+  const newName = document.getElementById('reuse-vmname').value.trim();
+  if (!newVmid || !newName) { alert('Please fill VM Name and ID.'); return; }
+  const status = document.getElementById('copy-status');
+  status.classList.remove('hidden');
+  status.innerHTML = '<div class="spinner"></div> Submitting job...';
   const payload = new FormData();
   payload.append('vmid', newVmid);
-  payload.append('vm_name', newVmName);
+  payload.append('vm_name', newName);
   payload.append('source_filename', sourceFilename);
-  // Re-use disk format from original job or default
   payload.append('disk_format', 'vmdk');
-  payload.append('cpu_cores', '2');
+  payload.append('cpu_cores', document.getElementById('copy-cores').value || '2');
-  payload.append('ram_mb', '4096');
+  payload.append('ram_mb', document.getElementById('copy-ram').value || '4096');
-  payload.append('target_storage', 'local-lvm');
+  payload.append('target_storage', document.getElementById('copy-storage').value || 'local-lvm');
+  const diskGb = document.getElementById('copy-disk').value;
+  if (diskGb) payload.append('target_disk_size_gb', diskGb);
   payload.append('auto_detect_boot', 'true');
   payload.append('boot_type', 'uefi');
-
   try {
     const resp = await fetch('/session/confirm', { method: 'POST', body: payload });
     const html = await resp.text();
@@ -411,6 +421,8 @@ async function submitReuse(e) {
     status.innerHTML = '<div class="error">Failed: ' + err.message + '</div>';
   }
 }
+
+}
 </script>
 
 {% endblock %}

frontend/templates/polling.html

@@ -19,35 +19,55 @@
     <div id="error-block" class="error hidden"></div>
   </div>
 
-  <!-- Reuse: ask whether to create another VM -->
+  <!-- Reuse section -->
   <div id="reuse-section" class="panel hidden">
-    <h2>Conversion Complete</h2>
+    <h2>Conversion Complete — VM {{ vmid }} Ready</h2>
-    <p>Use the same source image to create another VM?</p>
+    <p style="margin-bottom:1rem;">Create another VM from this disk?</p>
-    <div class="btn-row">
+
-      <button id="btn-reuse-yes" class="btn">Yes — Create Another VM</button>
+    <div class="row">
-      <button id="btn-reuse-no" class="btn btn-secondary">No — Clean Up &amp; Finish</button>
+      <div class="form-group">
+        <label>VM Name *</label>
+        <input type="text" id="reuse-vmname" name="vm_name" required
+               placeholder="e.g. second-vm">
+      </div>
+      <div class="form-group">
+        <label>VM ID *</label>
+        <input type="number" id="reuse-vmid" name="vmid" required
+               min="21000" max="21100" placeholder="21051">
+      </div>
     </div>
-    <div id="reuse-form-wrap" class="hidden" style="margin-top:1rem;">
+
-      <hr style="border-color:var(--border); margin-bottom:1rem;">
+    <div class="btn-row" style="flex-wrap:wrap;">
-      <form id="reuse-form" onsubmit="submitReuse(event)">
+      <button id="btn-clone" class="btn" style="background:var(--green);">Clone (instant)</button>
-        <div class="row">
+      <button id="btn-copy" class="btn">Copy (re-convert)</button>
-          <div class="form-group">
+      <button id="btn-cleanup" class="btn btn-secondary">Clean Up &amp; Finish</button>
-            <label>VM Name *</label>
+    </div>
-            <input type="text" id="reuse-vmname" name="vm_name" required
+    <div id="reuse-submit-status" class="hidden" style="margin-top:0.5rem;"></div>
-                   placeholder="e.g. second-vm">
+
-          </div>
+    <!-- Copy options (hidden until Copy clicked) -->
-          <div class="form-group">
+    <div id="copy-options" class="hidden" style="margin-top:1rem; padding-top:1rem; border-top:1px solid var(--border);">
-            <label>VM ID *</label>
+      <p class="dim" style="margin-bottom:0.75rem;">Copy re-runs the conversion with new specs:</p>
-            <input type="number" id="reuse-vmid" name="vmid" required
+      <div class="row">
-                   min="21000" max="21100" placeholder="21051">
+        <div class="form-group">
-          </div>
+          <label>CPU Cores</label>
+          <input type="number" id="copy-cores" value="2" min="1">
         </div>
-        <p class="dim" style="font-size:0.8rem;">
+        <div class="form-group">
-          Same disk image, format, and boot settings as the first VM.
+          <label>RAM (MB)</label>
-        </p>
+          <input type="number" id="copy-ram" value="4096" min="512">
-        <button type="submit" class="btn" style="margin-top:0.5rem;">Start Conversion</button>
+        </div>
-      </form>
+      </div>
-      <div id="reuse-submit-status" class="hidden" style="margin-top:1rem;"></div>
+      <div class="form-group">
+        <label>Target Disk Size (GB)</label>
+        <input type="number" id="copy-disk" value="30" placeholder="Leave blank for auto-shrink">
+        <span class="hint">Blank = auto-shrink to 30 GB.</span>
+      </div>
+      <div class="form-group">
+        <label>Storage Pool</label>
+        <input type="text" id="copy-storage" value="local-lvm">
+      </div>
+      <button id="btn-copy-start" class="btn" style="margin-top:0.5rem;">Start Re-Conversion</button>
+      <div id="copy-status" class="hidden" style="margin-top:0.5rem;"></div>
     </div>
   </div>
 </div>