fix(home): Show correct number of cpus and total memory for swarm (#2147)

* fix(home): show cpu/mem for swarm

* fix(home): add nodes data to snapshot

* fix(dashboard): get cpus/mem from snapshot

* refactor(home): remove temp variable

api/docker/snapshot.go

@@ -30,6 +30,11 @@ func snapshot(cli *client.Client) (*portainer.Snapshot, error) {
 		if err != nil {
 			return nil, err
 		}
+
+		err = snapshotNodes(snapshot, cli)
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	err = snapshotContainers(snapshot, cli)
@@ -64,6 +69,22 @@ func snapshotInfo(snapshot *portainer.Snapshot, cli *client.Client) error {
 	return nil
 }
 
+func snapshotNodes(snapshot *portainer.Snapshot, cli *client.Client) error {
+	nodes, err := cli.NodeList(context.Background(), types.NodeListOptions{})
+	if err != nil {
+		return err
+	}
+	var nanoCpus int64
+	var totalMem int64
+	for _, node := range nodes {
+		nanoCpus += node.Description.Resources.NanoCPUs
+		totalMem += node.Description.Resources.MemoryBytes
+	}
+	snapshot.TotalCPU = int(nanoCpus / 1e9)
+	snapshot.TotalMemory = totalMem
+	return nil
+}
+
 func snapshotSwarmServices(snapshot *portainer.Snapshot, cli *client.Client) error {
 	stacks := make(map[string]struct{})
 

app/docker/views/dashboard/dashboard.html

@@ -45,7 +45,10 @@
               <td>Endpoint</td>
               <td>
                 {{ endpoint.Name }}
-                <span class="small text-muted space-left"><i class="fa fa-microchip"></i> {{ info.NCPU }}<i class="fa fa-memory space-left"></i> {{ info.MemTotal | humansize }}</span>
+                <span class="small text-muted space-left">
+                    <i class="fa fa-microchip"></i> {{ endpoint.Snapshots[0].TotalCPU }}
+                    <i class="fa fa-memory space-left"></i> {{ endpoint.Snapshots[0].TotalMemory | humansize }}
+                </span>
                 <span class="small text-muted"> - {{ info.Swarm && info.Swarm.NodeID !== '' ? 'Swarm' : 'Standalone' }} {{ info.ServerVersion }} <span ng-if="endpoint.Type === 2">+ <i class="fa fa-bolt" aria-hidden="true"></i>  Agent</span></span>
               </td>
             </tr>

app/portainer/components/endpoint-list/endpoint-item/endpointItem.html

@@ -58,7 +58,7 @@
 
       <div class="blocklist-item-line endpoint-item">
         <span class="small text-muted">
-          <span ng-if="$ctrl.model.Type === 1 && !$ctrl.model.Snapshots[0].Swarm">
+          <span ng-if="$ctrl.model.Type === 1">
             <span class="small text-muted">
               <i class="fa fa-microchip"></i> {{ $ctrl.model.Snapshots[0].TotalCPU }}<i class="fa fa-memory space-left"></i> {{ $ctrl.model.Snapshots[0].TotalMemory | humansize }}
             </span>