from flask import Flask, request
import flask_restful as fr
+logging.basicConfig()
LOG = logging.getLogger("sonata-dummy-gatekeeper")
LOG.setLevel(logging.DEBUG)
logging.getLogger("werkzeug").setLevel(logging.WARNING)
+GK_STORAGE = "/tmp/son-dummy-gk/"
+UPLOAD_FOLDER = os.path.join(GK_STORAGE, "uploads/")
+CATALOG_FOLDER = os.path.join(GK_STORAGE, "catalog/")
-UPLOAD_FOLDER = "/tmp/son-dummy-gk/uploads/"
-CATALOG_FOLDER = "/tmp/son-dummy-gk/catalog/"
+# flag to indicate that we run without the emulator (only the bare API for integration testing)
+GK_STANDALONE_MODE = False
class Gatekeeper(object):
def get_next_vnf_name(self):
self.vnf_counter += 1
- return "sonvnf%d" % self.vnf_counter
+ return "vnf%d" % self.vnf_counter
class Service(object):
self.instances[instance_uuid] = dict()
self.instances[instance_uuid]["vnf_instances"] = list()
# 2. compute placement of this service instance (adds DC names to VNFDs)
- self._calculate_placement(FirstDcPlacement)
+ if not GK_STANDALONE_MODE:
+ self._calculate_placement(FirstDcPlacement)
# iterate over all vnfds that we have to start
for vnfd in self.vnfds.itervalues():
- # iterate over all deployment units within each VNFDs
- for u in vnfd.get("virtual_deployment_units"):
- # 3. get the name of the docker image to start and the assigned DC
- docker_name = u.get("vm_image")
- target_dc = vnfd.get("dc")
- # 4. perform some checks to ensure we can start the container
- assert(docker_name is not None)
- assert(target_dc is not None)
- if not self._check_docker_image_exists(docker_name):
- raise Exception("Docker image %r not found. Abort." % docker_name)
- # 5. do the dc.startCompute(name="foobar") call to run the container
- # TODO consider flavors, and other annotations
- vnfi = target_dc.startCompute(GK.get_next_vnf_name(), image=docker_name, flavor_name="small")
- # 6. store references to the compute objects in self.instances
- self.instances[instance_uuid]["vnf_instances"].append(vnfi)
+ vnfi = None
+ if not GK_STANDALONE_MODE:
+ vnfi = self._start_vnfd(vnfd)
+ self.instances[instance_uuid]["vnf_instances"].append(vnfi)
LOG.info("Service started. Instance id: %r" % instance_uuid)
return instance_uuid
+ def _start_vnfd(self, vnfd):
+ """
+ Start a single VNFD of this service
+ :param vnfd: vnfd descriptor dict
+ :return:
+ """
+ # iterate over all deployment units within each VNFDs
+ for u in vnfd.get("virtual_deployment_units"):
+ # 1. get the name of the docker image to start and the assigned DC
+ docker_name = vnfd.get("vnf_name")
+ target_dc = vnfd.get("dc")
+ # 2. perform some checks to ensure we can start the container
+ assert(docker_name is not None)
+ assert(target_dc is not None)
+ if not self._check_docker_image_exists(docker_name):
+ raise Exception("Docker image %r not found. Abort." % docker_name)
+ # 3. do the dc.startCompute(name="foobar") call to run the container
+ # TODO consider flavors, and other annotations
+ vnfi = target_dc.startCompute(GK.get_next_vnf_name(), image=docker_name, flavor_name="small")
+ # 6. store references to the compute objects in self.instances
+ return vnfi
+
def _unpack_service_package(self):
"""
unzip *.son file and store contents in CATALOG_FOLDER/services/<service_uuid>/
def _load_docker_files(self):
"""
- Get all paths to Dockerfiles from MANIFEST.MF and store them in dict.
+ Get all paths to Dockerfiles from VNFDs and store them in dict.
:return:
"""
- if "package_content" in self.manifest:
- for df in self.manifest.get("package_content"):
- if df.get("content-type") == "application/sonata.docker_files":
+ for k, v in self.vnfds.iteritems():
+ for vu in v.get("virtual_deployment_units"):
+ if vu.get("vm_image_format") == "docker":
+ vm_image = vu.get("vm_image")
docker_path = os.path.join(
self.package_content_path,
- make_relative_path(df.get("name")))
- # FIXME: Mapping to docker image names is hardcoded because of the missing mapping in the example package
- self.local_docker_files[helper_map_docker_name(df.get("name"))] = docker_path
+ make_relative_path(vm_image))
+ self.local_docker_files[k] = docker_path
LOG.debug("Found Dockerfile: %r" % docker_path)
def _build_images_from_dockerfiles(self):
"""
Build Docker images for each local Dockerfile found in the package: self.local_docker_files
"""
+ if GK_STANDALONE_MODE:
+ return # do not build anything in standalone mode
dc = DockerClient()
LOG.info("Building %d Docker images (this may take several minutes) ..." % len(self.local_docker_files))
for k, v in self.local_docker_files.iteritems():
"""
If the package contains URLs to pre-build Docker images, we download them with this method.
"""
- # TODO implement
+ # TODO implement this if we want to be able to download docker images instead of building them
pass
def _check_docker_image_exists(self, image_name):
- # TODO implement
- return True
+ """
+ Query the docker service and check if the given image exists
+ :param image_name: name of the docker image
+ :return:
+ """
+ return len(DockerClient().images(image_name)) > 0
def _calculate_placement(self, algorithm):
"""
"""
try:
# get file contents
+ print(request.files)
son_file = request.files['file']
# generate a uuid to reference this package
service_uuid = str(uuid.uuid4())
Will return a new UUID to identify the running service instance.
:return: UUID
"""
- # TODO implement method (start real service)
+ # try to extract the service uuid from the request
json_data = request.get_json(force=True)
- service_uuid = list(GK.services.iterkeys())[0] #json_data.get("service_uuid") # TODO only for quick testing
+ service_uuid = json_data.get("service_uuid")
+
+ # lets be a bit fuzzy here to make testing easier
+ if service_uuid is None and len(GK.services) > 0:
+ # if we don't get a service uuid, we simple start the first service in the list
+ service_uuid = list(GK.services.iterkeys())[0]
+
if service_uuid in GK.services:
+ # ok, we have a service uuid, lets start the service
service_instance_uuid = GK.services.get(service_uuid).start_service()
return {"service_instance_uuid": service_instance_uuid}
return "Service not found", 404
Returns a list of UUIDs containing all running services.
:return: dict / list
"""
- # TODO implement method
- return {"service_instance_uuid_list": list()}
+ return {"service_instance_list": [
+ list(s.instances.iterkeys()) for s in GK.services.itervalues()]}
# create a single, global GK object
def make_relative_path(path):
+ if path.startswith("file://"):
+ path = path.replace("file://", "", 1)
if path.startswith("/"):
- return path.replace("/", "", 1)
+ path = path.replace("/", "", 1)
return path
-def helper_map_docker_name(name):
- """
- Quick hack to fix missing dependency in example package.
- """
- # TODO remove this when package description is fixed
- mapping = {
- "/docker_files/iperf/Dockerfile": "iperf_docker",
- "/docker_files/firewall/Dockerfile": "fw_docker",
- "/docker_files/tcpdump/Dockerfile": "tcpdump_docker"
- }
- return mapping.get(name)
-
-
if __name__ == '__main__':
"""
Lets allow to run the API in standalone mode.
"""
+ GK_STANDALONE_MODE = True
logging.getLogger("werkzeug").setLevel(logging.INFO)
start_rest_api("0.0.0.0", 8000)
projects / osm / vim-emu.git / blobdiff