Make products available via getattr

nicohack202002/uncloud/opennebula/management/commands/syncvm.py

@@ -9,8 +9,7 @@ from xmltodict import parse
 
 from opennebula.models import VM as VMModel
 
-OCA_SESSION_STRING = os.environ.get('OCASECRETS', '')
+import uncloud.secrets
-
 
 class Command(BaseCommand):
     help = 'Syncronize VM information from OpenNebula'
@@ -19,9 +18,9 @@ class Command(BaseCommand):
         pass
 
     def handle(self, *args, **options):
-        with RPCClient('https://opennebula.ungleich.ch:2634/RPC2') as rpc_client:
+        with RPCClient(uncloud.secrets.OPENNEBULA_URL) as rpc_client:
             success, response, *_ = rpc_client.one.vmpool.infoextended(
-                OCA_SESSION_STRING, -2, -1, -1, -1
+                uncloud.secrets.OPENNEBULA_USER_PASS, -2, -1, -1, -1
             )
             if success:
                 vms = json.loads(json.dumps(parse(response)))['VM_POOL']['VM']
@@ -37,4 +36,3 @@ class Command(BaseCommand):
                     vm_object.save()
             else:
                 print(response)
-

nicohack202002/uncloud/requirements.txt

@@ -2,3 +2,4 @@ django
 djangorestframework
 django-auth-ldap
 stripe
+xmltodict

nicohack202002/uncloud/uncloud/secrets_sample.py

@@ -7,5 +7,11 @@
 
 
 
-
+# Live/test key from stripe
 STRIPE_KEY=""
+
+# XML-RPC interface of opennebula
+OPENNEBULA_URL='https://opennebula.ungleich.ch:2634/RPC2'
+
+# user:pass for accessing opennebula
+OPENNEBULA_USER_PASS='user:password'

nicohack202002/uncloud/uncloud/urls.py

@@ -30,7 +30,9 @@ router.register(r'groups', views.GroupViewSet)
 urlpatterns = [
     path('', include(router.urls)),
     path('admin/', admin.site.urls),
+    path('products/', views.ProductsView.as_view(), name='products'),
     path('api-auth/', include('rest_framework.urls', namespace='rest_framework')),
     path('vm/list/', oneviews.VMList.as_view(), name='vm_list'),
     path('vm/detail/<int:vmid>/', oneviews.VMDetail.as_view(), name='vm_detail'),
+
 ]

nicohack202002/uncloud/uncloud_api/management/commands/hack.py

@@ -0,0 +1,26 @@
+import time
+from django.conf import settings
+from django.core.management.base import BaseCommand
+
+import uncloud_api.models
+
+import inspect
+import sys
+import re
+
+class Command(BaseCommand):
+    args = '<None>'
+    help = 'hacking - only use if you are Nico'
+
+    def add_arguments(self, parser):
+        parser.add_argument('command', type=str, help='Command')
+
+    def handle(self, *args, **options):
+        getattr(self, options['command'])(**options)
+
+    @classmethod
+    def classtest(cls, **_):
+        clsmembers = inspect.getmembers(sys.modules['uncloud_api.models'], inspect.isclass)
+        for name, c in clsmembers:
+            if re.match(r'.+Product$', name):
+                print("{} -> {}".format(name, c))

nicohack202002/uncloud/uncloud_api/models.py

@@ -3,9 +3,38 @@ import uuid
 from django.db import models
 from django.contrib.auth import get_user_model
 
+# Product in DB vs. product in code
+# DB:
+# - need to define params (+param types) in db -> messy?
+# - get /products/ is easy / automatic
+#
+# code
+# - can have serializer/verification of fields easily in DRF
+# - can have per product side effects / extra code running
+# - might (??) make features easier??
+# - how to setup / query the recurring period (?)
+# - could get products list via getattr() + re ...Product() classes
+# -> this could include the url for ordering => /order/vm_snapshot (params)
+# ---> this would work with urlpatterns
 
+# Combination: create specific product in DB (?)
+# - a table per product (?) with 1 entry?
+
+# Orders
+# define state in DB
+# select a price from a product => product might change, order stays
+# params:
+# - the product uuid or name (?) => productuuid
+# - the product parameters => for each feature
+#
+
+# logs
+# Should have a log = ... => 1:n field for most models!
 
 class Product(models.Model):
+
+    description = ""
+
     uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     name = models.CharField(max_length=256)
 
@@ -21,10 +50,18 @@ class Product(models.Model):
                                         default="not_recurring"
     )
 
+    # params = [ vmuuid, ... ]
+    # features -> required as defined
+
     def __str__(self):
         return "{}".format(self.name)
 
 
+class VMSnapshotProduct(Product):
+    # need to setup recurring_periodd
+
+    description = "Create snapshot of a VM"
+
 
 class Feature(models.Model):
     uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
@@ -35,6 +72,15 @@ class Feature(models.Model):
 
     product = models.ForeignKey(Product, on_delete=models.CASCADE)
 
+    # params for "cpu": cpu_count -> int
+    # each feature can only have one parameters
+    # could call this "value" and set whether it is user usable
+    # has_value = True/False
+    # value = string  -> int (?)
+    # value_int
+    # value_str
+    # value_float
+
     def __str__(self):
         return "'{}' - '{}'".format(self.product, self.name)
 
@@ -49,11 +95,5 @@ class Order(models.Model):
                                 on_delete=models.CASCADE)
 
 
-
+class VMSnapshotOrder(Order):
-class OrderReference(models.Model):
-    """
-    An order can references another product / relate to it.
-    This model is used for the relation
-    """
-
     pass

nicohack202002/uncloud/uncloud_api/serializers.py

@@ -14,3 +14,6 @@ class GroupSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = Group
         fields = ['url', 'name']
+
+class VMSnapshotSerializer(serializers.Serializer):
+    pass

nicohack202002/uncloud/uncloud_api/views.py

@@ -2,9 +2,11 @@ from django.shortcuts import render
 from django.contrib.auth import get_user_model
 from django.contrib.auth.models import Group
 
-from rest_framework import viewsets, permissions
+from rest_framework import viewsets, permissions, generics
-
 from .serializers import UserSerializer, GroupSerializer
+from rest_framework.views import APIView
+from rest_framework.response import Response
+
 
 class CreditCardViewSet(viewsets.ModelViewSet):
 
@@ -35,3 +37,42 @@ class GroupViewSet(viewsets.ModelViewSet):
     serializer_class = GroupSerializer
 
     permission_classes = [permissions.IsAuthenticated]
+
+class GroupViewSet(viewsets.ModelViewSet):
+    """
+    API endpoint that allows groups to be viewed or edited.
+    """
+    queryset = Group.objects.all()
+    serializer_class = GroupSerializer
+
+    permission_classes = [permissions.IsAuthenticated]
+
+
+# POST /vm/snapshot/ vmuuid=... => create snapshot, returns snapshot uuid
+# GET /vm/snapshot => list
+# DEL /vm/snapshot/<uuid:uuid> => delete
+# create-list -> get, post => ListCreateAPIView
+# del on other!
+class VMSnapshotView(generics.ListCreateAPIView):
+    #lookup_field = 'uuid'
+    permission_classes = [permissions.IsAuthenticated]
+
+import inspect
+import sys
+import re
+
+class ProductsView(APIView):
+    def get(self, request, format=None):
+        clsmembers = inspect.getmembers(sys.modules['uncloud_api.models'], inspect.isclass)
+        products = []
+        for name, c in clsmembers:
+            # Include everything that ends in Product, but not Product itself
+            if re.search(r'.+Product$', name):
+                products.append({
+                    'name': name,
+                    'description': c.description
+                }
+                )
+
+
+        return Response(products)

notes-nico.org

@@ -1,5 +1,14 @@
 * snapshot feature
 ** product: vm-snapshot
+** flow
+*** list all my VMs
+**** get the uuid of the VM I want to take a snapshot of
+*** request a snapshot
+```
+vmuuid=$(http nicocustomer
+http -a nicocustomer:xxx http://uncloud.ch/vm/create_snapshot uuid=
+password=...
+```
 * steps
 ** DONE authenticate via ldap
    CLOSED: [2020-02-20 Thu 19:05]

plan.org

@@ -0,0 +1,6 @@
+* TODO register CC
+* TODO list products
+* ahmed
+** schemas
+*** field: is_valid? - used by schemas
+*** definition of a "schema"