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Commit 269156f0 by Fukász Rómeó Ervin
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compute collection and compute instance get requests

parent a0cf9380
Showing with 153 additions and 71 deletions
circle/occi/forms.py
......@@ -3,6 +3,7 @@ from django.contrib.auth import login
class OcciAuthForm(AuthenticationForm):
""" An authentication form for the OCCI implementation. """
def __init__(self, request, *args, **kwargs):
super(OcciAuthForm, self).__init__(*args, **kwargs)
self.request = request
......
circle/occi/occi_client_example.py
import requests
from requests.exceptions import ConnectionError
import json
import urllib3
# import urllib3
# Mivel nincs a devenv-nek SSL tanusitvanya, ezert az urllib3 csomag minden keresnel
# InsecureRequestWarning-ot adna. Ezt elkeruljuk ugy, hogy kikapcsoljuk a
# figyelmezteteseket
# Mivel nincs a devenv-nek SSL tanusitvanya, ezert az urllib3 csomag minden
# keresnel InsecureRequestWarning-ot adna. Ezt elkeruljuk ugy, hogy
# kikapcsoljuk a figyelmezteteseket
# urllib3.disable_warnings()
# A szerver base url-je es a felhasznalo adatai
......@@ -14,13 +14,14 @@ username = "admin"
password = "retekretek"
loginData = {"username": username, "password": password}
# Csinalunk egy sessiont, hogy a cookie ami az auth-ert felelos automatikusan benne
# maradjon az osszes keresunkben
# Csinalunk egy sessiont, hogy a cookie ami az auth-ert felelos
# automatikusan benne maradjon az osszes keresunkben
with requests.Session() as session:
headers = {"Content-Type": "application/json", "Referer" : server}
headers = {"Content-Type": "application/json", "Referer": server}
try:
# Csrf-Token a bejelentkezeshez
req = session.get(server + "occi/login/", headers=headers, verify=False)
req = session.get(server + "occi/login/", headers=headers,
verify=False)
print("csrf-token")
print("----------")
print("status_code: " + str(req.status_code))
......@@ -28,11 +29,12 @@ with requests.Session() as session:
print
# Bejelentkezes
# POST, DELETE, PUT keresek elott be kell allitani az X-CSRFToken header
# erteket az aktualis csrftoken-re, amely mindig benne van a cookie-ban
# POST, DELETE, PUT keresek elott be kell allitani az X-CSRFToken
# header erteket az aktualis csrftoken-re, amely mindig benne van
# a cookie-ban
headers["X-CSRFToken"] = req.cookies['csrftoken']
req = session.post(server + "occi/login/", data=json.dumps(loginData),
headers=headers, verify=False)
req = session.post(server + "occi/login/", verify=False,
data=json.dumps(loginData), headers=headers)
print("login")
print("-----")
print("status_code: " + str(req.status_code))
......@@ -45,24 +47,28 @@ with requests.Session() as session:
print(error)
print
# Gep ebresztes teszt (meg nem OCCI)
req = session.get(server + "occi/wakeup/", headers=headers, verify=False)
print("wakeup")
print("------")
# osszes vm collectionkent
req = session.get(server + "occi/compute/", headers=headers,
verify=False)
print("compute-collection")
print("------------------")
print("status_code: " + str(req.status_code))
print(req.text)
print
# Gep altatas teszt (meg nem OCCI)
req = session.get(server + "occi/sleep/", headers=headers, verify=False)
print("sleep")
print("-----")
# az elso vm a listabol
vmid = json.loads(req.text)["resources"][0]["id"]
req = session.get(server + "occi/compute/" + str(vmid),
headers=headers, verify=False)
print("compute-"+str(vmid))
print("------------")
print("status_code: " + str(req.status_code))
print(req.text)
print
# Kijelentkezes
req = session.get(server + "occi/logout/", headers=headers, verify=False)
req = session.get(server + "occi/logout/", headers=headers,
verify=False)
print("logout")
print("------")
print("status_code: " + str(req.status_code))
......
circle/occi/occi_core.py
""" Implementation of the OCCI - Core model classes """
from occi_utils import set_optional_attributes
from occi_utils import set_optional_attributes, serialize_attributes
class Attribute:
......@@ -35,8 +35,6 @@ class Category(object):
category_optional_attributes = ("title", "attributes")
attributes = {}
def __init__(self, scheme, term, **kwargs):
self.scheme = scheme
self.term = term
......@@ -49,23 +47,23 @@ class Kind(Category):
kind_optional_attributes = ("parent", "actions", "enitities")
actions = ()
entities = ()
def __init__(self, *args, **kwargs):
super(Kind, self).__init__(*args, **kwargs)
set_optional_attributes(self, self.kind_optional_attributes,
kwargs)
def render_as_json(self):
json = {"term": self.term, "scheme": self.scheme,
"attributes": self.attributes, "actions": self.actions}
json = {"term": self.term, "scheme": self.scheme}
if hasattr(self, "title"):
json["title"] = self.title
if hasattr(self, "parent"):
json["parent"] = self.parent
if hasattr(self, "location"):
json["location"] = self.location
if hasattr(self, "attributes"):
json["attributes"] = serialize_attributes(self.attributes)
if hasattr(self, "actions"):
json["actions"] = serialize_attributes(self.actions)
return json
......@@ -79,7 +77,7 @@ class Action(Category):
if hasattr(self, "title"):
json["title"] = self.title
if hasattr(self, "attributes"):
json["attributes"] = self.attributes
json["attributes"] = serialize_attributes(self.attributes)
return json
......@@ -89,11 +87,6 @@ class Mixin(Category):
mixin_optional_attributes = ("depends", "entities", "applies",
"actions")
depends = ()
entities = ()
applies = ()
actions = ()
def __init__(self, *args, **kwargs):
super(Mixin, self).__init__(*args, **kwargs)
set_optional_attributes(self, self.mixin_optional_attributes,
......@@ -118,8 +111,6 @@ class Entity(object):
entity_optional_attributes = ("mixins", "title")
mixins = ()
def __init__(self, kind, id, **kwargs):
self.kind = kind
self.id = id
......@@ -132,16 +123,13 @@ class Resource(Entity):
resource_optional_attributes = ("links", "summary")
links = ()
def __init__(self, *args, **kwargs):
super(Resource, self).__init__(*args, **kwargs)
set_optional_attributes(self, self.resource_optional_attributes,
kwargs)
def render_as_json(self):
json = {"kind": self.kind, "id": self.id, "links": self.links,
"mixins": self.mixins}
json = {"kind": self.kind, "id": self.id}
if hasattr(self, "title"):
json["title"] = self.title
if hasattr(self, "summary"):
......@@ -150,6 +138,10 @@ class Resource(Entity):
json["attributes"] = self.attributes
if hasattr(self, "actions"):
json["actions"] = self.actions
if hasattr(self, "links"):
json["links"] = self.links
if hasattr(self, "mixins"):
json["mixins"] = self.mixins
return json
......
circle/occi/occi_infrastructure.py
......@@ -2,27 +2,27 @@
from occi_core import Action, Attribute, Resource
from occi_utils import action_list_for_resource
COMPUTE_ATTRIBUTES = [
Attribute("occi.compute.architecture", "Enum {x86, x84}", True, False,
Attribute("occi.compute.architecture", "Object", True, False,
description="CPU Architecture of the instance."),
Attribute("occi.compute.cores", "Integer", True, False,
Attribute("occi.compute.cores", "Object", True, False,
description="Number of virtual CPU cores assigned to " +
"the instance."),
Attribute("occi.compute.hostname", "String", True, False,
Attribute("occi.compute.hostname", "Object", True, False,
description="Fully Qualified DNS hostname for the " +
"instance"),
Attribute("occi.compute.share", "Integer", True, False,
Attribute("occi.compute.share", "Object", True, False,
description="Relative number of CPU shares for the " +
"instance."),
Attribute("occi.compute.memory", "Float, 10^9 (GiB)", True, False,
Attribute("occi.compute.memory", "Object", True, False,
description="Maximum RAM in gigabytes allocated to " +
"the instance."),
Attribute("occi.compute.state", "Enum {active, inactive, suspended, " +
"error}", False, True,
Attribute("occi.compute.state", "Object", False, True,
description="Current state of the instance."),
Attribute("occi.compute.state.message", "String", False, False,
Attribute("occi.compute.state.message", "Object", False, False,
description="Human-readable explanation of the current " +
"instance state"),
]
......@@ -32,27 +32,70 @@ COMPUTE_ACTIONS = [
"start", title="Start compute instance"),
Action("http://schemas.ogf.org/occi/infrastructure/compute/action#",
"stop", title="Stop compute instance",
attributes=[Attribute("method", "Enum {graceful, acpioff, " +
"poweroff}", True, False), ]),
attributes=[Attribute("method", "Object", True, False), ]),
Action("http://schemas.ogf.org/occi/infrastructure/compute/action#",
"restart", title="Restart compute instance",
attributes=[Attribute("method", "Enum {graceful, warm, cold}",
attributes=[Attribute("method", "Object",
True, False), ]),
Action("http://schemas.ogf.org/occi/infrastructure/compute/action#",
"suspend", title="Suspend compute instance",
attributes=[Attribute("method", "Enum {hibernate, suspend}",
attributes=[Attribute("method", "Object",
True, False), ]),
Action("http://schemas.ogf.org/occi/infrastructure/compute/action#",
"save", title="Create a template of compute instance",
attributes=[Attribute("method", "Enum {hot, deffered}", True,
attributes=[Attribute("method", "Object", True,
False),
Attribute("name", "String", True, True), ]),
Attribute("name", "Object", True, True), ]),
]
COMPUTE_STATES = {
"NOSTATE": "inactive",
"RUNNING": "active",
"STOPPED": "inactive",
"SUSPENDED": "suspended",
"ERROR": "error",
"PENDING": "inactive",
"DESTROYED": "inactive",
}
COMPUTE_STATE_MESSAGES = {
"NOSTATE": "The virtual machine is not in a valid state.",
"RUNNING": "The virtual machine is running.",
"STOPPED": "The virtual machine is stopped.",
"SUSPENDED": "The virtual machine is suspended.",
"ERROR": "The virtual machine is in error state.",
"PENDING": "There is an action going on.",
"DESTROYED": "The virtual machine is destroyed",
}
COMPUTE_ARCHITECTURES = {"x86_64": "x64",
"x86-64 (64 bit)": "x64",
"i686": "x86",
"x86 (32 bit)": "x86"}
class Compute(Resource):
""" OCCI 1.2 - Infrastructure extension - Compute """
def __init__(self, vm):
""" Creates a Compute instance of a VM instance object """
self.location = "/compute/%d" % (vm.pk)
super(Compute, self).__init__(
"http://schemas.ogf.org/occi/infrastructure#compute", vm.pk)
self.vm = vm
self.attributes = self.set_attributes()
self.actions = action_list_for_resource(COMPUTE_ACTIONS)
def set_attributes(self):
""" Sets the attributes of the Compute object based on the VM
instance. """
attributes = {}
attributes["occi.compute.architecture"] = (COMPUTE_ARCHITECTURES
.get(self.vm.arch))
attributes["occi.compute.cores"] = self.vm.num_cores
attributes["occi.compute.hostname"] = self.vm.short_hostname
attributes["occi.compute.share"] = self.vm.priority
attributes["occi.compute.memory"] = self.vm.ram_size / 1024.0
attributes["occi.compute.state"] = COMPUTE_STATES.get(self.vm.state)
attributes["occi.compute.state.message"] = (COMPUTE_STATE_MESSAGES
.get(self.vm.state))
return attributes
circle/occi/occi_utils.py
......@@ -8,3 +8,20 @@ def set_optional_attributes(self, optional_attributes, kwargs):
for k, v in kwargs.iteritems():
if k in optional_attributes:
setattr(self, k, v)
def serialize_attributes(attributes):
""" Creates a list of attributes, that are serializable to json from
a list of Attribute class objects. """
atrs = []
for attribute in attributes:
atrs.append(attribute.render_as_json())
return atrs
def action_list_for_resource(actions):
""" Creates a list of actions for Resource object rendering """
acts = []
for action in actions:
acts.append(action.scheme + action.term)
return acts
circle/occi/urls.py
from django.conf.urls import url
from views import OcciLoginView, OcciLogoutView, TestView
from views import (OcciLoginView, OcciLogoutView, OcciComputeView,
OcciComputeCollectionView)
urlpatterns = [
url(r'^login/$', OcciLoginView.as_view()),
url(r'^logout/$', OcciLogoutView.as_view()),
url(r'^test/$', TestView.as_view()),
url(r'^compute/$', OcciComputeCollectionView.as_view()),
url(r'^compute/(?P<id>\d+)/$', OcciComputeView.as_view()),
]
circle/occi/views.py
......@@ -2,16 +2,16 @@
These views handle the http requests of the API. """
import json
from django.views.generic import View
from django.contrib.auth import logout
from django.http import JsonResponse
# from vm.models.instance import Instance
# from common.models import HumanReadableException
from forms import OcciAuthForm
import json
from django.http import HttpResponse, JsonResponse, Http404
from django.shortcuts import get_object_or_404
from django.views.decorators.csrf import ensure_csrf_cookie
from django.utils.decorators import method_decorator
from occi_core import ENTITY_KIND
from vm.models.instance import Instance
from forms import OcciAuthForm
from occi_infrastructure import Compute
class OcciLoginView(View):
......@@ -24,7 +24,7 @@ class OcciLoginView(View):
""" Returns a response with a cookie to be used for requests other
than get. """
result = {"result": "OK"}
return JsonResponse(result)
return JsonResponse(result, charset="utf-8")
def post(self, request, *args, **kwargs):
data = json.loads(request.body.decode("utf-8"))
......@@ -33,12 +33,12 @@ class OcciLoginView(View):
form = OcciAuthForm(data=data, request=request)
if form.is_valid():
result = {"result": "OK"}
return JsonResponse(result)
return JsonResponse(result, charset="utf-8")
else:
errors = dict([(k, [unicode(e) for e in v])
for k, v in form.errors.items()])
result = {"result": "ERROR", "errors": errors["__all__"]}
return JsonResponse(result, status=400)
return JsonResponse(result, status=400, charset="utf-8")
class OcciLogoutView(View):
......@@ -46,10 +46,31 @@ class OcciLogoutView(View):
def get(self, request, *args, **kwargs):
logout(request)
result = {"result": "OK"}
return JsonResponse(result)
return JsonResponse(result, charset="utf-8")
class OcciComputeCollectionView(View):
def get(self, request, *args, **kwargs):
if not request.user.is_authenticated():
return HttpResponse(status=403)
vms = (Instance.get_objects_with_level("user", request.user)
.filter(destroyed_at=None))
json = {"resources": []}
for vm in vms:
json["resources"].append(Compute(vm).render_as_json())
return JsonResponse(json, charset="utf-8")
class TestView(View):
""" TEST VIEW """
class OcciComputeView(View):
""" View of a compute instance """
def get(self, request, *args, **kwargs):
return JsonResponse(ENTITY_KIND.render_as_json())
if not request.user.is_authenticated():
return HttpResponse(status=403)
try:
vm = get_object_or_404(Instance.get_objects_with_level("user",
request.user), pk=kwargs['id'])
except Http404:
return JsonResponse({"error": "There is no instance with the" +
" id " + kwargs['id'] + "."}, status=400)
compute = Compute(vm)
return JsonResponse(compute.render_as_json(), charset="utf-8")
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