remote monitor (#167)

app/Console/Commands/GetMetricsCommand.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Models\Server;
+use Illuminate\Console\Command;
+use Illuminate\Database\Eloquent\Builder;
+
+class GetMetricsCommand extends Command
+{
+    protected $signature = 'metrics:get';
+
+    protected $description = 'Get server metrics';
+
+    public function handle(): void
+    {
+        $checkedMetrics = 0;
+        Server::query()->whereHas('services', function (Builder $query) {
+            $query->where('type', 'monitoring')
+                ->where('name', 'remote-monitor');
+        })->chunk(10, function ($servers) use (&$checkedMetrics) {
+            /** @var Server $server */
+            foreach ($servers as $server) {
+                $info = $server->os()->resourceInfo();
+                $server->metrics()->create(array_merge($info, ['server_id' => $server->id]));
+                $checkedMetrics++;
+            }
+        });
+        $this->info("Checked $checkedMetrics metrics");
+    }
+}

app/Console/Kernel.php

@@ -17,6 +17,7 @@ protected function schedule(Schedule $schedule): void
         $schedule->command('backups:run "0 0 * * 0"')->weekly();
         $schedule->command('backups:run "0 0 1 * *"')->monthly();
         $schedule->command('metrics:delete-older-metrics')->daily();
+        $schedule->command('metrics:get')->everyMinute();
     }
 
     /**

app/SSH/OS/OS.php

@@ -166,4 +166,21 @@ public function cleanup(): void
             'cleanup'
         );
     }
+
+    public function resourceInfo(): array
+    {
+        $info = $this->server->ssh()->exec(
+            $this->getScript('resource-info.sh'),
+        );
+
+        return [
+            'load' => str($info)->after('load:')->before(PHP_EOL)->toString(),
+            'memory_total' => str($info)->after('memory_total:')->before(PHP_EOL)->toString(),
+            'memory_used' => str($info)->after('memory_used:')->before(PHP_EOL)->toString(),
+            'memory_free' => str($info)->after('memory_free:')->before(PHP_EOL)->toString(),
+            'disk_total' => str($info)->after('disk_total:')->before(PHP_EOL)->toString(),
+            'disk_used' => str($info)->after('disk_used:')->before(PHP_EOL)->toString(),
+            'disk_free' => str($info)->after('disk_free:')->before(PHP_EOL)->toString(),
+        ];
+    }
 }

app/SSH/OS/scripts/resource-info.sh

@@ -0,0 +1,7 @@
+echo "load:$(uptime | awk -F'load average:' '{print $2}' | awk -F, '{print $1}' | tr -d ' ')"
+echo "memory_total:$(free -k | awk 'NR==2{print $2}')"
+echo "memory_used:$(free -k | awk 'NR==2{print $3}')"
+echo "memory_free:$(free -k | awk 'NR==2{print $7}')"
+echo "disk_total:$(df -BM / | awk 'NR==2{print $2}' | sed 's/M//')"
+echo "disk_used:$(df -BM / | awk 'NR==2{print $3}' | sed 's/M//')"
+echo "disk_free:$(df -BM / | awk 'NR==2{print $4}' | sed 's/M//')"

app/SSH/Services/Monitoring/RemoteMonitor/RemoteMonitor.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace App\SSH\Services\Monitoring\RemoteMonitor;
+
+use App\Models\Metric;
+use App\SSH\Services\AbstractService;
+use Closure;
+use Illuminate\Validation\Rule;
+
+class RemoteMonitor extends AbstractService
+{
+    public function creationRules(array $input): array
+    {
+        return [
+            'type' => [
+                function (string $attribute, mixed $value, Closure $fail) {
+                    $monitoringExists = $this->service->server->monitoring();
+                    if ($monitoringExists) {
+                        $fail('You already have a monitoring service on the server.');
+                    }
+                },
+            ],
+            'version' => [
+                'required',
+                Rule::in(['latest']),
+            ],
+        ];
+    }
+
+    public function creationData(array $input): array
+    {
+        return [
+            'data_retention' => 10,
+        ];
+    }
+
+    public function data(): array
+    {
+        return [
+            'data_retention' => $this->service->type_data['data_retention'] ?? 10,
+        ];
+    }
+
+    public function install(): void
+    {
+        //
+    }
+
+    public function uninstall(): void
+    {
+        Metric::where('server_id', $this->service->server_id)->delete();
+    }
+}

app/SSH/Services/Monitoring/VitoAgent/VitoAgent.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace App\SSH\Services\VitoAgent;
+namespace App\SSH\Services\Monitoring\VitoAgent;
 
 use App\Models\Metric;
 use App\SSH\HasScripts;