vm management

static/main.js

@@ -694,7 +694,7 @@ async function renderVMAdmin() {
     const sel = `<select class="form-select form-select-sm target-node" style="min-width:140px">
       ${nodes.map(n => `<option value="${n}" ${n === x.node ? 'disabled' : ''}>${n}${n === x.node ? ' (src)' : ''}</option>`).join('')}
     </select>`;
-    const migrateBtn = `<button class="btn btn-outline-primary btn-sm act-migrate">Migrate (offline)</button>`;
+    const migrateBtn = `<div class="d-flex align-items-center gap-2"><button class="btn btn-outline-primary btn-sm act-migrate">Migrate (offline)</button><button class="btn btn-outline-secondary btn-sm act-status">Status</button></div>`;
     return rowHTML([sid, type.toUpperCase(), name, node, st, actions, sel, migrateBtn], `data-sid="${sid}"`);
   });
 
@@ -743,6 +743,8 @@ async function renderVMAdmin() {
               log.textContent += (log.textContent ? '\n' : '') + (ok ? 'Migration finished successfully.' : ('Migration failed: ' + (exit || 'unknown error')));
               setRowBusy(tr, false);
               await doRefresh();
+              // auto-collapse on success after 2s
+              if (ok) { setTimeout(() => { const row = tr.nextElementSibling; if (row && row.classList.contains('mig-row')) setMigRowVisible(row, false); }, 2000); }
             });
           } else {
             await vmAction(sid, action, needsTarget ? getTarget() : undefined);
@@ -762,6 +764,13 @@ async function renderVMAdmin() {
     bind('.act-stop', 'stop');
     bind('.act-shutdown', 'shutdown');
     bind('.act-migrate', 'migrate', true);
+    const statusBtn = tr.querySelector('.act-status');
+    if (statusBtn) {
+      statusBtn.onclick = () => {
+        const row = ensureMigRow(tr, colSpan);
+        setMigRowVisible(row, row.classList.contains('d-none'));
+      };
+    }
   });
 }
 
@@ -860,6 +869,7 @@ async function tailTaskLog(upid, node, preEl, stopSignal) {
   const append = (txt) => {
     if (!preEl) return;
     preEl.textContent = (preEl.textContent ? preEl.textContent + '\n' : '') + txt;
+    trimLogEl(preEl);
     preEl.scrollTop = preEl.scrollHeight;
   };
   while (!stopSignal.done) {
@@ -878,4 +888,14 @@ async function tailTaskLog(upid, node, preEl, stopSignal) {
     }
     await delay(1500);
   }
+}
+
+
+const LOG_MAX_CHARS = 64 * 1024; // 64KB cap for log panel
+function trimLogEl(preEl) {
+  if (!preEl) return;
+  const txt = preEl.textContent || '';
+  if (txt.length > LOG_MAX_CHARS) {
+    preEl.textContent = txt.slice(-LOG_MAX_CHARS);
+  }
 }