feat: daily node restart controlled from the admin, connect timings as a default line task [CI]

Agents and Probes exit in order at a configured time (default 04:30 UTC+8, switch and time zone in the admin settings) and the service manager starts them again; a local restart_at or MOSHIRO_RESTART_AT wins. The connect kind (TCP connect and TLS handshake timings) is now a default continuous line template, with a section on the line page.

web/admin/src/pages/System.tsx

@@ -10,70 +10,166 @@ import { Chip, Confirm, CopyButton, Dialog, Empty, ErrorNotice, Field, Segmented
 
 type Tab = 'settings' | 'versions' | 'tokens' | 'users' | 'events' | 'raw' | 'analysis'
 
+const RESTART_KEYS = ['fleet.restart_enabled', 'fleet.restart_hour', 'fleet.restart_minute', 'fleet.restart_utc_offset_minutes']
+
+/** 常用时区（固定偏移，不含夏令时）：偏移是东经分钟数。 */
+const TIME_ZONES: { offset: number; label: string }[] = [
+  { offset: 480, label: '北京时间（UTC+8）' },
+  { offset: 0, label: 'UTC' },
+  { offset: 540, label: '东京、首尔（UTC+9）' },
+  { offset: 60, label: '中欧（UTC+1）' },
+  { offset: 180, label: '莫斯科（UTC+3）' },
+  { offset: -300, label: '美东（UTC-5）' },
+  { offset: -480, label: '美西（UTC-8）' },
+]
+
+const pad2 = (n: number) => String(n).padStart(2, '0')
+const offsetLabel = (offset: number) => `UTC${offset < 0 ? '-' : '+'}${Math.floor(Math.abs(offset) / 60)}${Math.abs(offset) % 60 ? `:${pad2(Math.abs(offset) % 60)}` : ''}`
+
+/** 定时重启：节点每天这个时刻有序退出一次，由系统服务拉起。设置保存后马上通知所有在线节点。 */
+function RestartCard({ items, onSaved }: { items: SettingDto[]; onSaved: () => void }) {
+  const { busy, run } = useAction()
+  const value = (key: string, fallback: string) => items.find((s) => s.key === key)?.value ?? fallback
+  const saved = {
+    enabled: value('fleet.restart_enabled', 'true') === 'true',
+    hour: Number(value('fleet.restart_hour', '4')),
+    minute: Number(value('fleet.restart_minute', '30')),
+    offset: Number(value('fleet.restart_utc_offset_minutes', '480')),
+  }
+  const [draft, setDraft] = useState(saved)
+  useEffect(() => setDraft(saved), [saved.enabled, saved.hour, saved.minute, saved.offset]) // eslint-disable-line react-hooks/exhaustive-deps
+  const dirty = draft.enabled !== saved.enabled || draft.hour !== saved.hour || draft.minute !== saved.minute || draft.offset !== saved.offset
+  const zones = TIME_ZONES.some((z) => z.offset === draft.offset) ? TIME_ZONES : [...TIME_ZONES, { offset: draft.offset, label: offsetLabel(draft.offset) }]
+  const zoneName = zones.find((z) => z.offset === draft.offset)?.label ?? offsetLabel(draft.offset)
+
+  return (
+    <div className="card" style={{ marginBottom: 16 }}>
+      <div className="card-title">定时重启（Agent 和 Probe）</div>
+      <div className="row wrap" style={{ gap: 16 }}>
+        <label className="switch">
+          <input type="checkbox" checked={draft.enabled} onChange={(e) => setDraft({ ...draft, enabled: e.target.checked })} />
+          {draft.enabled ? '开' : '关'}
+        </label>
+        <span className="row" style={{ gap: 6 }}>
+          <select className="select" aria-label="小时" value={draft.hour} disabled={!draft.enabled} onChange={(e) => setDraft({ ...draft, hour: Number(e.target.value) })}>
+            {Array.from({ length: 24 }, (_, h) => (
+              <option key={h} value={h}>
+                {pad2(h)}
+              </option>
+            ))}
+          </select>
+          :
+          <select className="select" aria-label="分钟" value={draft.minute} disabled={!draft.enabled} onChange={(e) => setDraft({ ...draft, minute: Number(e.target.value) })}>
+            {Array.from({ length: 60 }, (_, m) => (
+              <option key={m} value={m}>
+                {pad2(m)}
+              </option>
+            ))}
+          </select>
+        </span>
+        <select className="select" aria-label="时区" value={draft.offset} disabled={!draft.enabled} onChange={(e) => setDraft({ ...draft, offset: Number(e.target.value) })}>
+          {zones.map((z) => (
+            <option key={z.offset} value={z.offset}>
+              {z.label}
+            </option>
+          ))}
+        </select>
+        <button
+          type="button"
+          className="btn primary"
+          disabled={!dirty || busy}
+          onClick={async () => {
+            await run(
+              () =>
+                api.patch('/api/admin/settings', {
+                  'fleet.restart_enabled': draft.enabled,
+                  'fleet.restart_hour': draft.hour,
+                  'fleet.restart_minute': draft.minute,
+                  'fleet.restart_utc_offset_minutes': draft.offset,
+                }),
+              '已保存，已通知在线节点',
+            )
+            onSaved()
+          }}
+        >
+          保存
+        </button>
+      </div>
+      <p className="muted" style={{ marginTop: 12 }}>
+        {draft.enabled ? `每天 ${pad2(draft.hour)}:${pad2(draft.minute)}（${zoneName}）` : '已关闭'}
+        ：节点自己有序退出一次，由系统服务（systemd、容器、procd）重新拉起，测量会中断几十秒。节点本地写了 restart_at 或环境变量 MOSHIRO_RESTART_AT 时以本地为准。
+      </p>
+    </div>
+  )
+}
+
 function Settings() {
   const settings = useQuery(() => api.get<Page<SettingDto>>('/api/admin/settings'), [])
   const { busy, run } = useAction()
   const [draft, setDraft] = useState<Record<string, string>>({})
   useEffect(() => setDraft({}), [settings.data])
 
-  const items = settings.data?.items ?? []
+  const items = (settings.data?.items ?? []).filter((s) => !RESTART_KEYS.includes(s.key))
   const dirty = Object.keys(draft).length > 0
   return (
-    <div className="card">
-      <ErrorNotice error={settings.error} />
-      <table className="table">
-        <thead>
-          <tr>
-            <th>设置</th>
-            <th>值</th>
-            <th>说明</th>
-          </tr>
-        </thead>
-        <tbody>
-          {items.map((s) => {
-            const value = draft[s.key] ?? s.value
-            return (
-              <tr key={s.key}>
-                <td className="mono">{s.key}</td>
-                <td style={{ width: 200 }}>
-                  {s.type === 'bool' ? (
-                    <label className="switch">
-                      <input type="checkbox" checked={value === 'true'} onChange={(e) => setDraft({ ...draft, [s.key]: String(e.target.checked) })} />
-                      {value === 'true' ? '开' : '关'}
-                    </label>
-                  ) : (
-                    <input className="input" type={s.type === 'int' ? 'number' : 'text'} value={value} onChange={(e) => setDraft({ ...draft, [s.key]: e.target.value })} />
-                  )}
-                </td>
-                <td className="muted">
-                  {translateSetting(s.key, s.description)}
-                  {s.value !== s.default ? <span className="faint">（默认 {s.default}）</span> : null}
-                </td>
-              </tr>
-            )
-          })}
-        </tbody>
-      </table>
-      <div className="row" style={{ marginTop: 16 }}>
-        <button
-          type="button"
-          className="btn primary"
-          disabled={!dirty || busy}
-          onClick={async () => {
-            const body: Record<string, unknown> = {}
-            for (const s of items) {
-              if (draft[s.key] === undefined) continue
-              body[s.key] = s.type === 'bool' ? draft[s.key] === 'true' : s.type === 'int' ? Number(draft[s.key]) : draft[s.key]
-            }
-            await run(() => api.patch('/api/admin/settings', body), '已保存')
-            settings.reload()
-          }}
-        >
-          保存
-        </button>
-        <span className="muted">「site.public」打开之后，展示页对匿名访客公开。</span>
+    <>
+      <RestartCard items={settings.data?.items ?? []} onSaved={settings.reload} />
+      <div className="card">
+        <ErrorNotice error={settings.error} />
+        <table className="table">
+          <thead>
+            <tr>
+              <th>设置</th>
+              <th>值</th>
+              <th>说明</th>
+            </tr>
+          </thead>
+          <tbody>
+            {items.map((s) => {
+              const value = draft[s.key] ?? s.value
+              return (
+                <tr key={s.key}>
+                  <td className="mono">{s.key}</td>
+                  <td style={{ width: 200 }}>
+                    {s.type === 'bool' ? (
+                      <label className="switch">
+                        <input type="checkbox" checked={value === 'true'} onChange={(e) => setDraft({ ...draft, [s.key]: String(e.target.checked) })} />
+                        {value === 'true' ? '开' : '关'}
+                      </label>
+                    ) : (
+                      <input className="input" type={s.type === 'int' ? 'number' : 'text'} value={value} onChange={(e) => setDraft({ ...draft, [s.key]: e.target.value })} />
+                    )}
+                  </td>
+                  <td className="muted">
+                    {translateSetting(s.key, s.description)}
+                    {s.value !== s.default ? <span className="faint">（默认 {s.default}）</span> : null}
+                  </td>
+                </tr>
+              )
+            })}
+          </tbody>
+        </table>
+        <div className="row" style={{ marginTop: 16 }}>
+          <button
+            type="button"
+            className="btn primary"
+            disabled={!dirty || busy}
+            onClick={async () => {
+              const body: Record<string, unknown> = {}
+              for (const s of items) {
+                if (draft[s.key] === undefined) continue
+                body[s.key] = s.type === 'bool' ? draft[s.key] === 'true' : s.type === 'int' ? Number(draft[s.key]) : draft[s.key]
+              }
+              await run(() => api.patch('/api/admin/settings', body), '已保存')
+              settings.reload()
+            }}
+          >
+            保存
+          </button>
+          <span className="muted">「site.public」打开之后，展示页对匿名访客公开。</span>
+        </div>
       </div>
-    </div>
+    </>
   )
 }