refactored vm.py to create a VM
This commit is contained in:
Dominique Roux
parent
b5409552d8
commit
58daf8191e
3 changed files with 75 additions and 51 deletions
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@ -36,7 +36,9 @@ log = logging.getLogger(__name__)
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class MAC(object):
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def __init__(self, config):
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self.config = config
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self.db = DB(config, prefix="/mac")
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self.no_db = self.config.arguments['no_db']
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if not self.no_db:
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self.db = DB(config, prefix="/mac")
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self.prefix = 0x420000000000
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self._number = 0 # Not set by default
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@ -47,10 +49,14 @@ class MAC(object):
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raise Error("Not a valid mac address: %s" % mac)
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def last_used_index(self):
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value = self.db.get("last_used_index")
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if not value:
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self.db.set("last_used_index", "0")
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if not self.no_db:
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value = self.db.get("last_used_index")
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if not value:
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self.db.set("last_used_index", "0")
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value = self.db.get("last_used_index")
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else:
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value = "0"
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return int(value)
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@ -22,6 +22,10 @@ arg_parser.add_argument('--vni', help="VXLAN ID (decimal)", type=int)
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arg_parser.add_argument('--run-dns-ra', action='store_true',
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help="Provide router advertisements and DNS resolution via dnsmasq")
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arg_parser.add_argument('--use-sudo', help="Use sudo for command requiring root!", action='store_true')
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arg_parser.add_argument('--memory', help="Size of memory (GB)", type=int)
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arg_parser.add_argument('--cores', help="Amount of CPU cores", type=int)
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arg_parser.add_argument('--no-db', help="Disable connection to etcd. For local testing only!", action='store_true')
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log = logging.getLogger(__name__)
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@ -33,7 +37,7 @@ def main(arguments):
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if arguments['create_vm']:
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print("Creating VM")
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vm = VM(config)
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vm.create()
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vm.commandline()
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if arguments['last_used_mac']:
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m = MAC(config)
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@ -29,58 +29,72 @@ from uncloud.hack.mac import MAC
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class VM(object):
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def __init__(self, config):
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self.config = config
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self.db = DB(config, prefix="/vm")
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self.config = config
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#TODO: Enable etcd lookup
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self.no_db = self.config.arguments['no_db']
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if not self.no_db:
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self.db = DB(self.config, prefix="/vm")
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#TODO: Select generic
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self.hackprefix="/home/nico/vcs/uncloud/uncloud/hack/hackcloud" #TODO: Should be removed midterm
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self.qemu="/usr/bin/qemu-system-x86_64" #TODO: should be in config
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self.accel="kvm" #TODO: should be config
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#TODO: Select generic
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#self.hackprefix="/home/nico/vcs/uncloud/uncloud/hack/hackcloud" #TODO: Should be removed midterm
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self.hackprefix="/home/rouxdo/Work/ungleich/uncloud/uncloud/hack/hackcloud" #TODO: Dominique testing
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self.qemu="/usr/bin/qemu-system-x86_64" #TODO: should be in config
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self.accel="kvm" #TODO: should be config
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self.vm = {}
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self.vm = {}
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#TODO: Touch later! (when necessary)
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self.ifup = os.path.join(self.hackprefix, "ifup.sh")
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self.ifdown = os.path.join(self.hackprefix, "ifdown.sh")
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#TODO: this should be generic
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self.vm['owner']="nico" #TODO: Should in config.arguments
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#self.config['vni_hex'] = "{:x}".format(self.config.vni)
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#self.config['bridgedev'] = "br{}".format(self.config['vni_hex'])
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self.vni_hex = "{:x}".format(self.config.arguments['vni'])
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self.bridgedev = "br{}".format(self.vni_hex)
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def commandline(self):
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"""This method is used to trigger / create a vm from the cli"""
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#TODO: read arguments from cli
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#TODO: create etcd json object
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self.vm['owner']= "nico"
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self.vm['memory'] = self.config.arguments['memory']
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self.vm['cores'] = self.config.arguments['cores']
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self.vm['os_image'] = os.path.join(self.hackprefix, "alpine-virt-3.11.2-x86_64.iso")
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self.create_template()
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# mimics api call = this will already be in etcd
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#self.vm['os_image'] = self.db.get("os_image")
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self.create()
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def create_template(self):
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self.uuid = uuid.uuid4()
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#TODO: This all should be generic
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self.vm['uuid'] = str(self.uuid)
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#self.vni_hex = "{:x}".format(self.config.arguments['vni'])
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self.bridgedev = "br{}".format("{:x}".format(self.config.arguments['vni']))
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#TODO: Enable sudo
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if self.config.arguments['use_sudo']:
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self.sudo = "sudo"
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self.mac=MAC(self.config)
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self.mac.create()
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self.vm['ifname'] = "uc{}".format(self.mac.to_str_format())
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#self.vm['commandline'] = [ "{}".format(self.sudo),
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self.vm['commandline'] = [ "{}".format(self.sudo),
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"{}".format(self.qemu),
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"-name", "uncloud-{}".format(self.vm['uuid']),
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"-machine", "pc,accel={}".format(self.accel),
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"-m", "{}".format(self.vm['memory']),
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"-smp", "{}".format(self.vm['cores']),
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"-uuid", "{}".format(self.vm['uuid']),
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"-drive", "file={},media=cdrom".format(self.vm['os_image']),
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"-netdev", "tap,id=netmain,script={},downscript={},ifname={}".format(self.ifup, self.ifdown, self.mac),
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"-device", "virtio-net-pci,netdev=netmain,id=net0,mac={}".format(self.mac)
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]
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#TODO: Touch later! (when necessary)
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self.ifup = os.path.join(self.hackprefix, "ifup.sh")
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self.ifdown = os.path.join(self.hackprefix, "ifdown.sh")
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def create(self):
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self.uuid = uuid.uuid4()
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#TODO: This all should be generic
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self.vm['uuid'] = str(self.uuid)
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self.vm['memory'] = 1024
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self.vm['cores'] = 2
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self.vm['os_image'] = os.path.join(self.hackprefix, "alpine-virt-3.11.2-x86_64.iso")
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if not self.no_db:
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self.db.set(str(self.vm['uuid']),
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self.vm,
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as_json=True)
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self.mac=MAC(self.config)
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self.mac.create()
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self.vm['ifname'] = "uc{}".format(self.mac.to_str_format())
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self.vm['commandline' ] = [ "sudo",
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"{}".format(self.qemu),
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"-name", "uncloud-{}".format(self.vm['uuid']),
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"-machine", "pc,accel={}".format(self.accel),
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"-m", "{}".format(self.vm['memory']),
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"-smp", "{}".format(self.vm['cores']),
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"-uuid", "{}".format(self.vm['uuid']),
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"-drive", "file={},media=cdrom".format(self.vm['os_image']),
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"-netdev", "tap,id=netmain,script={},downscript={},ifname={}".format(self.ifup, self.ifdown),self.mac,
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"-device", "virtio-net-pci,netdev=netmain,id=net0,mac={}".format(self.mac)
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]
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# TODO: Add ip link command afterwards (rouxdo)
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self.db.set(str(self.vm['uuid']),
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self.vm,
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as_json=True)
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print(" ".join(self.vm['commandline']))
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subprocess.run(self.vm['commandline'])
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print(" ".join(self.vm['commandline']))
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subprocess.run(self.vm['commandline']) #TODO: run in background
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#TODO: Add interface ifname to bridge brXX (via net.py: public function add iface to bridge)
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