feat(proxy): rewrite the meta module to support hot spares

app/terraform/proxy/__init__.py

@@ -93,7 +93,8 @@ class ProxyAutomation(TerraformAutomation):
             self.template,
             groups=groups,
             proxies=Proxy.query.filter(
-                Proxy.provider == self.provider, Proxy.destroyed.is_(None)).all(), subgroups=self.get_subgroups(),
+                Proxy.provider == self.provider, Proxy.destroyed.is_(None)).all(),
+            subgroups=self.get_subgroups(),
             global_namespace=app.config['GLOBAL_NAMESPACE'], bypass_token=app.config['BYPASS_TOKEN'],
             terraform_modules_path=os.path.join(*list(os.path.split(app.root_path))[:-1], 'terraform-modules'),
             backend_config=f"""backend "http" {{
@@ -157,25 +158,3 @@ class ProxyAutomation(TerraformAutomation):
         for row in result:
             subgroups[row[0]][row[1]] = row[2]
         return subgroups
-
-    @classmethod
-    def next_subgroup(cls, group_id: int) -> Optional[int]:
-        provider = cls()  # Some attributes are set by constructor
-        conn = db.engine.connect()
-        stmt = text("""
-        SELECT proxy.psg, COUNT(proxy.id) FROM proxy, origin
-        WHERE proxy.origin_id = origin.id
-            AND proxy.destroyed IS NULL
-            AND origin.group_id = :group_id
-            AND proxy.provider = :provider
-        GROUP BY proxy.psg ORDER BY proxy.psg;
-        """)
-        stmt = stmt.bindparams(provider=provider.short_name, group_id=group_id)
-        result = conn.execute(stmt).all()
-        subgroups = {
-            row[0]: row[1] for row in result
-        }
-        for subgroup in range(0, provider.subgroup_count_max):
-            if subgroups.get(subgroup, 0) < provider.subgroup_members_max:
-                return subgroup
-        return None