From: stevenvanrossem Date: Thu, 6 Apr 2017 00:21:20 +0000 (+0200) Subject: fix issues with installing docker management networks X-Git-Tag: v3.1~33^2~7 X-Git-Url: https://osm.etsi.org/gitweb/?a=commitdiff_plain;h=b101872396a91b6cda600a4c8567c6a943209943;p=osm%2Fvim-emu.git fix issues with installing docker management networks --- diff --git a/misc/sonata-demo-service.son b/misc/sonata-demo-service.son old mode 100644 new mode 100755 index 248f88c..bbe46c2 Binary files a/misc/sonata-demo-service.son and b/misc/sonata-demo-service.son differ diff --git a/src/emuvim/api/sonata/__init__.py b/src/emuvim/api/sonata/__init__.py index 434ec1c..613191c 100755 --- a/src/emuvim/api/sonata/__init__.py +++ b/src/emuvim/api/sonata/__init__.py @@ -46,11 +46,12 @@ class SonataDummyGatekeeperEndpoint(object): topology. """ - def __init__(self, listenip, port, deploy_sap=False): + def __init__(self, listenip, port, deploy_sap=False, docker_management=True): self.dcs = {} self.ip = listenip self.port = port dgk.DEPLOY_SAP = deploy_sap + dgk.USE_DOCKER_MGMT = docker_management logging.debug("Created API endpoint %s" % self) def __repr__(self): diff --git a/src/emuvim/api/sonata/dummygatekeeper.py b/src/emuvim/api/sonata/dummygatekeeper.py index 6ec5a65..d6aef6c 100755 --- a/src/emuvim/api/sonata/dummygatekeeper.py +++ b/src/emuvim/api/sonata/dummygatekeeper.py @@ -73,7 +73,8 @@ DEPLOY_SAP = False # flag to indicate if we use bidirectional forwarding rules in the automatic chaining process BIDIRECTIONAL_CHAIN = False - +# override the management interfaces in the descriptors with default docker0 interfaces in the containers +USE_DOCKER_MGMT = True def generate_subnets(prefix, base, subnet_size=50, mask=24): # Generate a list of ipaddress in subnets @@ -83,16 +84,14 @@ def generate_subnets(prefix, base, subnet_size=50, mask=24): r.append(ipaddress.ip_network(unicode(subnet))) return r # private subnet definitions for the generated interfaces -# 10.0.xx.0/24 +# 10.10.xxx.0/24 SAP_SUBNETS = generate_subnets('10.10', 0, subnet_size=50, mask=24) -# 10.1.xx.0/24 +# 10.20.xxx.0/24 ELAN_SUBNETS = generate_subnets('10.20', 0, subnet_size=50, mask=24) -# 10.2.xx.0/30 +# 10.30.xxx.0/30 ELINE_SUBNETS = generate_subnets('10.30', 0, subnet_size=50, mask=30) - - class Gatekeeper(object): def __init__(self): @@ -294,23 +293,43 @@ class Service(object): mem_lim = int(mem_limit) cpu_period, cpu_quota = self._calculate_cpu_cfs_values(float(cpu_bw)) + vnf_name2id = defaultdict(lambda: "NotExistingNode", + reduce(lambda x, y: dict(x, **y), + map(lambda d: {d["vnf_name"]: d["vnf_id"]}, + self.nsd["network_functions"]))) + + # check if we need to deploy the management ports (defined as type:management both on in the vnfd and nsd) + intfs = vnfd.get("connection_points", []) + if USE_DOCKER_MGMT: + vnf_id = vnf_name2id[vnf_name] + mgmt_intfs = [vnf_id + ':' + intf['id'] for intf in intfs if intf.get('type') == 'management'] + # check if any of these management interfaces are used in a management-type network in the nsd + for nsd_intf_name in mgmt_intfs: + vlinks = [ l["connection_points_reference"] for l in self.nsd.get("virtual_links", [])] + for link in vlinks: + if nsd_intf_name in link and self.check_mgmt_interface(link): + # this is indeed a management interface and can be skipped + vnf_id, vnf_interface, vnf_sap_docker_name = parse_interface(nsd_intf_name) + found_interfaces = [intf for intf in intfs if intf.get('id') == vnf_interface] + intfs.remove(found_interfaces[0]) + # 4. do the dc.startCompute(name="foobar") call to run the container # TODO consider flavors, and other annotations - intfs = vnfd.get("connection_points") - # TODO: get all vnf id's from the nsd for this vnfd and use those as dockername # use the vnf_id in the nsd as docker name # so deployed containers can be easily mapped back to the nsd - vnf_name2id = defaultdict(lambda: "NotExistingNode", - reduce(lambda x, y: dict(x, **y), - map(lambda d: {d["vnf_name"]: d["vnf_id"]}, - self.nsd["network_functions"]))) + self.vnf_name2docker_name[vnf_name] = vnf_name2id[vnf_name] LOG.info("Starting %r as %r in DC %r" % (vnf_name, self.vnf_name2docker_name[vnf_name], vnfd.get("dc"))) LOG.debug("Interfaces for %r: %r" % (vnf_name, intfs)) vnfi = target_dc.startCompute(self.vnf_name2docker_name[vnf_name], network=intfs, image=docker_name, flavor_name="small", cpu_quota=cpu_quota, cpu_period=cpu_period, cpuset=cpu_list, mem_limit=mem_lim) + + # rename the docker0 interfaces (eth0) to 'docker_mgmt' in the VNFs + if USE_DOCKER_MGMT: + self._vnf_reconfigure_network(vnfi, 'eth0', new_name='docker_mgmt') + return vnfi def _stop_vnfi(self, vnfi): @@ -343,7 +362,7 @@ class Service(object): return None @staticmethod - def _vnf_reconfigure_network(vnfi, if_name, net_str): + def _vnf_reconfigure_network(vnfi, if_name, net_str=None, new_name=None): """ Reconfigure the network configuration of a specific interface of a running container. @@ -352,12 +371,22 @@ class Service(object): :param net_str: network configuration string, e.g., 1.2.3.4/24 :return: """ - intf = vnfi.intf(intf=if_name) - if intf is not None: - intf.setIP(net_str) - LOG.debug("Reconfigured network of %s:%s to %r" % (vnfi.name, if_name, net_str)) - else: - LOG.warning("Interface not found: %s:%s. Network reconfiguration skipped." % (vnfi.name, if_name)) + + # assign new ip address + if net_str is not None: + intf = vnfi.intf(intf=if_name) + if intf is not None: + intf.setIP(net_str) + LOG.debug("Reconfigured network of %s:%s to %r" % (vnfi.name, if_name, net_str)) + else: + LOG.warning("Interface not found: %s:%s. Network reconfiguration skipped." % (vnfi.name, if_name)) + + if new_name is not None: + vnfi.cmd('ip link set', if_name, 'down') + vnfi.cmd('ip link set', if_name, 'name', new_name) + vnfi.cmd('ip link set', new_name, 'up') + LOG.debug("Reconfigured interface name of %s:%s to %s" % (vnfi.name, if_name, new_name)) + def _trigger_emulator_start_scripts_in_vnfis(self, vnfi_list): @@ -423,7 +452,11 @@ class Service(object): def _load_saps(self): # create list of all SAPs - SAPs = [p for p in self.nsd["connection_points"]] + # check if we need to deploy management ports + if USE_DOCKER_MGMT: + SAPs = [p for p in self.nsd["connection_points"] if 'management' not in p.get('type')] + else: + SAPs = [p for p in self.nsd["connection_points"]] for sap in SAPs: # endpoint needed in this service @@ -432,7 +465,7 @@ class Service(object): sap["type"] = sap.get("type", 'internal') # Each Service Access Point (connection_point) in the nsd is an IP address on the host - if sap.get["type"] == "external": + if sap["type"] == "external": # add to vnfds to calculate placement later on sap_net = SAP_SUBNETS.pop(0) self.saps[sap_docker_name] = {"name": sap_docker_name , "type": "external", "net": sap_net} @@ -442,7 +475,7 @@ class Service(object): {"vnf_id": sap_docker_name, "vnf_name": sap_docker_name, "vnf_type": "sap_ext"}) # Each Service Access Point (connection_point) in the nsd is getting its own container (default) - elif sap["type"] == "internal": + elif sap["type"] == "internal" or sap["type"] == "management": # add SAP to self.vnfds sapfile = pkg_resources.resource_filename(__name__, "sap_vnfd.yml") sap_vnfd = load_yaml(sapfile) @@ -463,6 +496,9 @@ class Service(object): self.saps_int = [self.saps[sap]['name'] for sap in self.saps if self.saps[sap]["type"] == "internal"] def _start_sap(self, sap, instance_uuid): + if not DEPLOY_SAP: + return + LOG.info('start SAP: {0} ,type: {1}'.format(sap['name'],sap['type'])) if sap["type"] == "internal": vnfi = None @@ -486,11 +522,15 @@ class Service(object): # eg. different services get a unique cookie for their flowrules cookie = 1 for link in eline_fwd_links: + # check if we need to deploy this link when its a management link: + if USE_DOCKER_MGMT: + if self.check_mgmt_interface(link["connection_points_reference"]): + continue + src_id, src_if_name, src_sap_id = parse_interface(link["connection_points_reference"][0]) dst_id, dst_if_name, dst_sap_id = parse_interface(link["connection_points_reference"][1]) setChaining = False - # check if there is a SAP in the link and chain everything together if src_sap_id in self.saps and dst_sap_id in self.saps: LOG.info('2 SAPs cannot be chained together : {0} - {1}'.format(src_sap_id, dst_sap_id)) @@ -560,9 +600,12 @@ class Service(object): :return: """ for link in elan_fwd_links: + # check if we need to deploy this link when its a management link: + if USE_DOCKER_MGMT: + if self.check_mgmt_interface(link["connection_points_reference"]): + continue elan_vnf_list = [] - # check if an external SAP is in the E-LAN (then a subnet is already defined) intfs_elan = [intf for intf in link["connection_points_reference"]] lan_sap = self.check_ext_saps(intfs_elan) @@ -594,7 +637,7 @@ class Service(object): vnf_name = self.vnf_id2vnf_name[vnf_id] LOG.debug( - "Setting up E-LAN link. %s(%s:%s) -> %s" % ( + "Setting up E-LAN interface. %s(%s:%s) -> %s" % ( vnf_name, vnf_id, intf_name, ip_address)) if vnf_name in self.vnfds: @@ -740,6 +783,12 @@ class Service(object): if vnf_sap_docker_name in saps_ext: return vnf_sap_docker_name + def check_mgmt_interface(self, intf_list): + SAPs_mgmt = [p.get('id') for p in self.nsd["connection_points"] if 'management' in p.get('type')] + for intf_name in intf_list: + if intf_name in SAPs_mgmt: + return True + """ Some (simple) placement algorithms """ @@ -816,7 +865,7 @@ class RoundRobinDcPlacementWithSAPs(object): intf_id, intf_name, intf_sap_id = parse_interface(intf) if intf_sap_id in saps: dc = dcs_list[randint(0, dc_len-1)] - saps[intf_id]['dc'] = dc + saps[intf_sap_id]['dc'] = dc