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vm management

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This commit is contained in:
Mateusz Gruszczyński
2025-10-17 16:20:07 +02:00
parent 2e988265b4
commit b9586a3517
3 changed files with 121 additions and 12 deletions
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38
app.py
View File

@@ -22,13 +22,13 @@ def run(cmd: List[str], timeout: int = 25) -> subprocess.CompletedProcess:
return subprocess.run(cmd, check=False, text=True, capture_output=True, timeout=timeout)
def get_text(cmd: List[str]) -> str:
r = run(cmd)
r = run(cmd, timeout=timeout or 25)
return r.stdout if r.returncode == 0 else ""
def get_json(cmd: List[str]) -> Any:
if cmd and cmd[0] == "pvesh" and "--output-format" not in cmd:
cmd = cmd + ["--output-format", "json"]
r = run(cmd)
r = run(cmd, timeout=timeout or 25)
if r.returncode != 0 or not r.stdout.strip():
return None
try:
@@ -36,11 +36,11 @@ def get_json(cmd: List[str]) -> Any:
except Exception:
return None
def post_json(cmd: List[str]) -> Any:
def post_json(cmd: List[str], timeout: Optional[int] = None) -> Any:
# force "create" for POST-like agent calls
if cmd and cmd[0] == "pvesh" and len(cmd) > 2 and cmd[1] != "create":
cmd = ["pvesh", "create"] + cmd[1:]
r = run(cmd)
r = run(cmd, timeout=timeout or 25)
if r.returncode != 0 or not r.stdout.strip():
return None
try:
@@ -64,7 +64,7 @@ def stop_if_running(unit: str, out: List[str]) -> None:
def ha_node_maint(enable: bool, node: str, out: List[str]) -> None:
cmd = ["ha-manager", "crm-command", "node-maintenance", "enable" if enable else "disable", node]
out.append("$ " + " ".join(shlex.quote(x) for x in cmd))
r = run(cmd)
r = run(cmd, timeout=timeout or 25)
if r.returncode != 0:
out.append(f"ERR: {r.stderr.strip()}")
@@ -441,7 +441,7 @@ def vm_locked(typ: str, node: str, vmid: int) -> bool:
def run_qm_pct(typ: str, vmid: int, subcmd: str) -> subprocess.CompletedProcess:
tool = "qm" if typ == "qemu" else "pct"
return run([tool, subcmd, str(vmid)])
return run([tool, subcmd, str(vmid)], timeout=120)
@app.get("/api/list-all-vmct")
def api_list_all_vmct():
@@ -487,7 +487,7 @@ def api_vm_action():
return jsonify(ok=False, error="target required and must differ from source"), 400
base = f"/nodes/{node}/{typ}/{vmid}/migrate"
cmd = ["pvesh", "create", base, "-target", target, "-online", "0"]
res = post_json(cmd)
res = post_json(cmd, timeout=120)
upid = None
if isinstance(res, dict):
upid = res.get("data") or res.get("upid")
@@ -510,6 +510,30 @@ def api_task_status():
st = get_json(["pvesh", "get", f"/nodes/{node}/tasks/{upid}/status"]) or {}
return jsonify(ok=True, status=st)
@app.get("/api/task-log")
def api_task_log():
upid = request.args.get("upid", "").strip()
node = request.args.get("node", "").strip()
start = request.args.get("start", "0").strip()
try:
start_i = int(start)
except Exception:
start_i = 0
if not upid or not node:
return jsonify(ok=False, error="upid and node required"), 400
# Returns a list of {n: <line_no>, t: <text>}
lines = get_json(["pvesh", "get", f"/nodes/{node}/tasks/{upid}/log", "-start", str(start_i)]) or []
# Compute next start
next_start = start_i
if isinstance(lines, list) and lines:
# find max n
try:
next_start = max((int(x.get("n", start_i)) for x in lines if isinstance(x, dict)), default=start_i) + 1
except Exception:
next_start = start_i
return jsonify(ok=True, lines=lines or [], next_start=next_start)
if __name__ == "__main__":
import argparse
p = argparse.ArgumentParser()

90
static/main.js
View File

@@ -708,17 +708,21 @@ async function renderVMAdmin() {
const btn = tr.querySelector(sel);
if (!btn) return;
btn.onclick = async () => {
setRowBusy(tr, true);
btn.disabled = true;
try {
if (action === 'migrate') {
const target = getTarget();
const resp = await vmAction(sid, action, target);
// show expandable status row
// show expandable status row (spinner already set via setRowBusy)
const row = ensureMigRow(tr, colSpan);
setMigRowVisible(row, true);
const log = row.querySelector('.mig-log');
const srcNode = resp.source_node;
const upid = resp.upid;
const stopSig = { done: false };
tailTaskLog(upid, srcNode, log, stopSig);
log.textContent = `Starting offline migrate to ${target} (UPID: ${upid || '—'})...`;
// update badge immediately
const badgeCell = tr.children[4];
@@ -727,15 +731,17 @@ async function renderVMAdmin() {
await pollTask(upid, srcNode, (st) => {
const lines = [];
for (const k of ['type', 'status', 'pid', 'starttime', 'user', 'node', 'endtime', 'exitstatus']) {
if (st[k] !== undefined) lines.push(`${k}: ${st[k]}`);
if (st && st[k] !== undefined) lines.push(`${k}: ${st[k]}`);
}
log.textContent = lines.join('\n') || '—';
}, async (finalSt) => {
stopSig.done = true;
const exit = (finalSt && finalSt.exitstatus) ? String(finalSt.exitstatus) : '';
const ok = exit.toUpperCase() === 'OK';
const badgeCell2 = tr.children[4];
if (badgeCell2) badgeCell2.innerHTML = ok ? badge('running', 'ok') : badge('migrate error', 'err');
const badgeCell = tr.children[4];
if (badgeCell) badgeCell.innerHTML = ok ? badge('running', 'ok') : badge('migrate error', 'err');
log.textContent += (log.textContent ? '\n' : '') + (ok ? 'Migration finished successfully.' : ('Migration failed: ' + (exit || 'unknown error')));
setRowBusy(tr, false);
await doRefresh();
});
} else {
@@ -747,7 +753,7 @@ async function renderVMAdmin() {
log.textContent += (log.textContent ? '\n' : '') + (ok ? 'Migration finished successfully.' : ('Migration failed: ' + (exit || 'unknown error')));
await doRefresh();
}
} catch (e) { alert('ERROR: ' + e.message); }
} catch (e) { showToast('Error', 'ERROR: ' + e.message, 'danger'); }
btn.disabled = false;
};
};
@@ -798,4 +804,78 @@ function ensureMigRow(mainTr, colSpan) {
}
function setMigRowVisible(row, vis) {
row.classList.toggle('d-none', !vis);
}
function setRowBusy(tr, busy) {
const nameCell = tr.children[2];
if (!nameCell) return;
let spin = nameCell.querySelector('.op-spin');
if (busy) {
if (!spin) {
const span = document.createElement('span');
span.className = 'op-spin spinner-border spinner-border-sm align-middle ms-2';
span.setAttribute('role', 'status');
span.setAttribute('aria-hidden', 'true');
nameCell.appendChild(span);
}
} else {
if (spin) spin.remove();
}
}
function showToast(title, body, variant) {
const cont = document.getElementById('toast-container');
if (!cont) { console.warn('toast container missing'); return; }
const id = 't' + Math.random().toString(36).slice(2);
const vcls = {
success: 'text-bg-success',
info: 'text-bg-info',
warning: 'text-bg-warning',
danger: 'text-bg-danger',
secondary: 'text-bg-secondary'
}[variant || 'secondary'];
const el = document.createElement('div');
el.className = 'toast align-items-center ' + vcls;
el.setAttribute('role', 'alert');
el.setAttribute('aria-live', 'assertive');
el.setAttribute('aria-atomic', 'true');
el.innerHTML = `
<div class="d-flex">
<div class="toast-body">
<strong>${title || ''}</strong>${title ? ': ' : ''}${body || ''}
</div>
<button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>`;
cont.appendChild(el);
const t = new bootstrap.Toast(el, { delay: 5000 });
t.show();
el.addEventListener('hidden.bs.toast', () => el.remove());
}
async function tailTaskLog(upid, node, preEl, stopSignal) {
let start = 0;
const delay = (ms) => new Promise(r => setTimeout(r, ms));
const append = (txt) => {
if (!preEl) return;
preEl.textContent = (preEl.textContent ? preEl.textContent + '\n' : '') + txt;
preEl.scrollTop = preEl.scrollHeight;
};
while (!stopSignal.done) {
try {
const r = await fetch('/api/task-log?upid=' + encodeURIComponent(upid) + '&node=' + encodeURIComponent(node) + '&start=' + start);
const d = await r.json();
if (d && d.ok) {
const lines = Array.isArray(d.lines) ? d.lines : [];
for (const ln of lines) {
if (ln && typeof ln.t === 'string') append(ln.t);
}
start = d.next_start ?? start;
}
} catch (e) {
// transient errors ignored
}
await delay(1500);
}
}

5
templates/index.html
View File

@@ -304,6 +304,11 @@
</div>
<!-- Toasts -->
<div aria-live="polite" aria-atomic="true" class="position-fixed top-0 end-0 p-3" style="z-index: 1080">
<div id="toast-container" class="toast-container"></div>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
<script src="{{ url_for('static', filename='main.js') }}"></script>
</body>