vmhosts, restructure urls, etc.

uncloud/uncloud_vm/management/commands/schedulevms.py

@@ -0,0 +1,21 @@
+import json
+
+import uncloud.secrets as secrets
+
+from django.core.management.base import BaseCommand
+from django.contrib.auth import get_user_model
+
+from uncloud_vm.models import VMProduct, VMHost
+
+class Command(BaseCommand):
+    help = 'Select VM Host for VMs'
+
+    def add_arguments(self, parser):
+        pass
+
+    def handle(self, *args, **options):
+        pending_vms = VMProduct.objects.filter(vmhost__isnull=True)
+        vmhosts = VMHost.objects.filter(status='active')
+        for vm in pending_vms:
+            print(vm)
+            # FIXME: implement smart placement

uncloud/uncloud_vm/management/commands/vmhealth.py

@@ -0,0 +1,24 @@
+import json
+
+from django.core.management.base import BaseCommand
+from django.contrib.auth import get_user_model
+
+from uncloud_vm.models import VMProduct, VMHost
+
+class Command(BaseCommand):
+    help = 'Check health of VMs and VMHosts'
+
+    def add_arguments(self, parser):
+        pass
+
+    def handle(self, *args, **options):
+        pending_vms = VMProduct.objects.filter(vmhost__isnull=True)
+        vmhosts = VMHost.objects.filter(status='active')
+
+        # 1. Check that all active hosts reported back N seconds ago
+        # 2. Check that no VM is running on a dead host
+        # 3. Migrate VMs if necessary
+        # 4. Check that no VMs have been pending for longer than Y seconds
+
+
+        print("Nothing is good, you should implement me")

uncloud/uncloud_vm/migrations/0003_auto_20200225_2028.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-02-25 20:28
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_vm', '0002_auto_20200225_1952'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='vmproduct',
+            name='vmhost',
+            field=models.ForeignKey(blank=True, editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_vm.VMHost'),
+        ),
+    ]

uncloud/uncloud_vm/models.py

@@ -39,7 +39,9 @@ class VMProduct(models.Model):
                               editable=False)
     vmhost   = models.ForeignKey(VMHost,
                                  on_delete=models.CASCADE,
-                                 editable=False)
+                                 editable=False,
+                                 blank=True,
+                                 null=True)
 
     cores = models.IntegerField()
     ram_in_gb = models.FloatField()

uncloud/uncloud_vm/serializers.py

@@ -1,9 +1,15 @@
 from django.contrib.auth import get_user_model
 
 from rest_framework import serializers
-from .models import VMHost
+from .models import VMHost, VMProduct
 
 class VMHostSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = VMHost
         fields = '__all__'
+
+
+class VMProductSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = VMProduct
+        fields = '__all__'

uncloud/uncloud_vm/views.py

@@ -6,13 +6,24 @@ from django.shortcuts import get_object_or_404
 from rest_framework import viewsets, permissions
 from rest_framework.response import Response
 
-
-from opennebula.models import VM as OpenNebulaVM
-
-from .models import VMHost
-from .serializers import VMHostSerializer
+from .models import VMHost, VMProduct
+from .serializers import VMHostSerializer, VMProductSerializer
 
 class VMHostViewSet(viewsets.ModelViewSet):
     serializer_class = VMHostSerializer
     queryset = VMHost.objects.all()
     permission_classes = [permissions.IsAdminUser]
+
+class VMProductViewSet(viewsets.ModelViewSet):
+    permission_classes = [permissions.IsAuthenticated]
+    serializer_class = VMProductSerializer
+
+    def get_queryset(self):
+        return VMProduct.objects.filter(owner=self.request.user)
+
+    def create(self, request):
+        serializer = VMProductSerializer(data=request.data, context={'request': request})
+        serializer.is_valid(raise_exception=True)
+        serializer.save(owner=request.user)
+
+        return Response(serializer.data)