Shares of other services and RepoISO integration

- include SMB drop-ins from /etc/samba/smb.conf.d into the generated smb.conf
- keep smbd/nfs-server running while other services (/etc/exports.d, drop-ins) share,
  instead of disabling them when nasmon has no shares of its own
- list those shares read-only on /shares
- settings: RepoISO URL; poll its /api/integration/status, dashboard card, menu link,
  alerts for portal down, stale worker, failed jobs, unmounted publications

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/web/templates/dashboard.html

@@ -104,6 +104,26 @@
   </table></div>
 </section>
 
+{{with .S.RepoISO}}
+<section class="card" id="repoiso">
+  <h2>RepoISO {{if $.RepoISO}}<a class="muted small" href="{{$.RepoISO}}" target="_blank" rel="noopener">open ↗</a>{{end}}
+    {{if not .Reachable}}<span class="badge crit">not responding</span>
+    {{else if not .WorkerAlive}}<span class="badge warn">worker stopped</span>
+    {{else}}<span class="badge ok">running</span>{{end}}
+    {{if .Version}}<span class="muted small">v{{.Version}}</span>{{end}}</h2>
+  {{if not .Reachable}}<div class="flash crit">{{.URL}}/api/integration/status: {{.Error}}</div>{{else}}
+  <div class="tablewrap"><table class="compact">
+    <tbody>
+      <tr><td class="muted">Images</td><td class="num">{{.Images}}</td><td>{{bytes .ImagesBytes}}{{if .ImagesPending}} · <span class="muted">{{.ImagesPending}} being checked</span>{{end}}{{if .ImagesError}} · <span class="crit">{{.ImagesError}} with errors</span>{{end}}</td></tr>
+      <tr><td class="muted">Publications</td><td class="num">{{.Publications}}</td><td>{{if .PublicationsError}}<span class="badge warn">{{.PublicationsError}} not mounted</span>{{else}}<span class="muted">HTTP repositories / file trees</span>{{end}}</td></tr>
+      <tr><td class="muted">Jobs</td><td class="num">{{.JobsActive}}</td><td>{{if .JobsActive}}active{{else}}<span class="muted">idle</span>{{end}}{{if .JobsFailed24h}} · <span class="badge warn">{{.JobsFailed24h}} failed in 24 h</span>{{end}}</td></tr>
+      <tr><td class="muted">Proxmox exports</td><td class="num">{{.Exports}}</td><td class="muted">NFS / SMB shares — listed on <a href="/shares#external">Shares</a></td></tr>
+      <tr><td class="muted">Worker</td><td></td><td class="small">{{if .WorkerHeartbeat}}last heartbeat {{.WorkerHeartbeat}}{{else}}no heartbeat yet{{end}}</td></tr>
+    </tbody>
+  </table></div>{{end}}
+</section>
+{{end}}
+
 <section class="card">
   <h2>Datasets</h2>
   <div class="tablewrap"><table>

internal/web/templates/layout.html

@@ -16,6 +16,7 @@
     <a href="/shares" {{if eq .Page "shares"}}class="on"{{end}}>Shares</a>
     <a href="/alerts" {{if eq .Page "alerts"}}class="on"{{end}}>Alerts{{if .Alerts}} <span class="badge crit">{{.Alerts}}</span>{{end}}</a>
     <a href="/settings" {{if eq .Page "settings"}}class="on"{{end}}>Settings</a>
+    {{if .RepoISO}}<a href="{{.RepoISO}}" target="_blank" rel="noopener" title="ISO library, repositories, Proxmox exports">RepoISO ↗</a>{{end}}
   </nav>
   <span class="refresh" id="refresh-state" title="auto-refresh"></span>
 </header>

internal/web/templates/settings.html

@@ -67,6 +67,17 @@
   <p class="muted small">Tests start only for disks that are awake. A long test on a large HDD takes many hours; disk stays usable.</p>
 </section>
 
+<section class="card">
+  <h2>Integrations</h2>
+  <div class="form-grid">
+    <label class="wide">RepoISO URL <input name="repoiso_url" value="{{$c.Integrations.RepoISOURL}}" placeholder="http://127.0.0.1"></label>
+  </div>
+  <p class="muted small">RepoISO (ISO library, apt/dnf repositories, Proxmox ISO exports) on this host. nasmon polls
+    <span class="mono">&lt;url&gt;/api/integration/status</span> every minute, shows a dashboard card, alerts when the portal
+    or its worker is down, and adds a menu link. Use the local address (<span class="mono">http://127.0.0.1</span>) — the
+    status endpoint only answers on loopback. Empty disables the integration.</p>
+</section>
+
 <div class="actions">
   <button type="submit" name="action" value="save">Save</button>
   <button type="submit" name="action" value="test" class="secondary">Save &amp; send test e-mail</button>

internal/web/templates/shares.html

@@ -140,5 +140,26 @@
   </details>
   <p class="muted small">Linux: <span class="mono">sudo mount -t nfs {{.Host}}:/nas_pool_1_8_gb/documents /mnt/nas</span>; list exports with <span class="mono">showmount -e {{.Host}}</span>.</p>
 </section>
+
+{{if .External}}
+<section class="card" id="external">
+  <h2>Shares of other services <span class="muted small">read-only</span></h2>
+  <p class="muted small">Defined by other software on this host in <span class="mono">/etc/samba/smb.conf.d/*.conf</span>
+    (included into smb.conf) and <span class="mono">/etc/exports.d/*.exports</span>. Manage them in that software;
+    nasmon keeps smbd / nfs-server running while any of them exist.</p>
+  <div class="tablewrap"><table>
+    <thead><tr><th>Type</th><th>Source</th><th>Name</th><th>Path</th><th>Clients</th></tr></thead>
+    <tbody>
+    {{range .External}}<tr>
+      <td><span class="badge">{{if eq .Kind "smb"}}SMB{{else}}NFS{{end}}</span></td>
+      <td>{{if eq .Source "repoiso"}}{{if $.RepoISO}}<a href="{{$.RepoISO}}/proxmox" target="_blank" rel="noopener">RepoISO</a>{{else}}RepoISO{{end}}{{else}}{{.Source}}{{end}}</td>
+      <td class="mono">{{if .Name}}\\{{$.Data.Host}}\{{.Name}}{{else}}—{{end}}</td>
+      <td class="mono small">{{.Path}}</td>
+      <td class="mono small">{{.Clients}}</td>
+    </tr>{{end}}
+    </tbody>
+  </table></div>
+</section>
+{{end}}
 {{end}}
 {{end}}