1 files changed, 143 insertions, 0 deletions
diff --git a/fuel/deploy/setup_vfuel.py b/fuel/deploy/setup_vfuel.py
new file mode 100644
index 0000000..65ee013
--- /dev/null
+++ b/fuel/deploy/setup_vfuel.py
@@ -0,0 +1,143 @@
+import sys
+from lxml import etree
+import os
+
+import common
+from dha import DeploymentHardwareAdapter
+
+exec_cmd = common.exec_cmd
+err = common.err
+log = common.log
+check_dir_exists = common.check_dir_exists
+check_file_exists = common.check_file_exists
+check_if_root = common.check_if_root
+
+VFUELNET = '''
+iface vfuelnet inet static
+        bridge_ports em1
+        address 10.40.0.1
+        netmask 255.255.255.0
+        pre-down iptables -t nat -D POSTROUTING --out-interface p1p1.20 -j MASQUERADE  -m comment --comment "vfuelnet"
+        pre-down iptables -D FORWARD --in-interface vfuelnet --out-interface p1p1.20 -m comment --comment "vfuelnet"
+        post-up iptables -t nat -A POSTROUTING --out-interface p1p1.20 -j MASQUERADE  -m comment --comment "vfuelnet"
+        post-up iptables -A FORWARD --in-interface vfuelnet --out-interface p1p1.20 -m comment --comment "vfuelnet"
+'''
+VM_DIR = 'baremetal/vm'
+FUEL_DISK_SIZE = '30G'
+IFACE = 'vfuelnet'
+INTERFACE_CONFIG = '/etc/network/interfaces'
+
+class VFuel(object):
+
+    def __init__(self, storage_dir, dha_file):
+        self.dha = DeploymentHardwareAdapter(dha_file)
+        self.storage_dir = storage_dir
+        self.parser = etree.XMLParser(remove_blank_text=True)
+        self.fuel_node_id = self.dha.get_fuel_node_id()
+        self.file_dir = os.path.dirname(os.path.realpath(__file__))
+        self.vm_dir = '%s/%s' % (self.file_dir, VM_DIR)
+
+    def setup_environment(self):
+        check_if_root()
+        check_dir_exists(self.vm_dir)
+        self.setup_networking()
+        self.delete_vm()
+        self.create_vm()
+
+    def setup_networking(self):
+        with open(INTERFACE_CONFIG) as f:
+            data = f.read()
+        if VFUELNET not in data:
+            log('Appending to file %s:\n %s' % (INTERFACE_CONFIG, VFUELNET))
+            with open(INTERFACE_CONFIG, 'a') as f:
+                f.write('\n%s\n' % VFUELNET)
+            if exec_cmd('ip link show | grep %s' % IFACE):
+                log('Bring DOWN interface %s' % IFACE)
+                exec_cmd('ifdown %s' % IFACE, False)
+            log('Bring UP interface %s' % IFACE)
+            exec_cmd('ifup %s' % IFACE, False)
+
+    def delete_vm(self):
+        vm_name = self.dha.get_node_property(self.fuel_node_id, 'libvirtName')
+        r, c = exec_cmd('virsh dumpxml %s' % vm_name, False)
+        if c > 0:
+            log(r)
+            return
+        self.undefine_vm_delete_disk(r, vm_name)
+
+    def undefine_vm_delete_disk(self, printout, vm_name):
+        disk_files = []
+        xml_dump = etree.fromstring(printout, self.parser)
+        disks = xml_dump.xpath('/domain/devices/disk')
+        for disk in disks:
+            sources = disk.xpath('source')
+            for source in sources:
+                source_file = source.get('file')
+                if source_file:
+                    disk_files.append(source_file)
+        log('Deleting VM %s with disks %s' % (vm_name, disk_files))
+        exec_cmd('virsh destroy %s' % vm_name, False)
+        exec_cmd('virsh undefine %s' % vm_name, False)
+        for file in disk_files:
+            exec_cmd('rm -f %s' % file)
+
+    def create_vm(self):
+        temp_dir = exec_cmd('mktemp -d')
+        vm_name = self.dha.get_node_property(self.fuel_node_id, 'libvirtName')
+        vm_template = self.dha.get_node_property(self.fuel_node_id,
+                                                 'libvirtTemplate')
+        disk_path = '%s/%s.raw' % (self.storage_dir, vm_name)
+        exec_cmd('fallocate -l %s %s' % (FUEL_DISK_SIZE, disk_path))
+        self.define_vm(vm_name, vm_template, temp_dir, disk_path)
+        exec_cmd('rm -fr %s' % temp_dir)
+
+    def define_vm(self, vm_name, vm_template, temp_dir, disk_path):
+        log('Creating VM %s with disks %s' % (vm_name, disk_path))
+        temp_vm_file = '%s/%s' % (temp_dir, vm_name)
+        exec_cmd('cp %s/%s %s' % (self.vm_dir, vm_template, temp_vm_file))
+        with open(temp_vm_file) as f:
+            vm_xml = etree.parse(f)
+            names = vm_xml.xpath('/domain/name')
+            for name in names:
+                name.text = vm_name
+            uuids = vm_xml.xpath('/domain/uuid')
+            for uuid in uuids:
+                uuid.getparent().remove(uuid)
+            disks = vm_xml.xpath('/domain/devices/disk')
+            for disk in disks:
+                sources = disk.xpath('source')
+                for source in sources:
+                    source.set('file', disk_path)
+        with open(temp_vm_file, 'w') as f:
+            vm_xml.write(f, pretty_print=True, xml_declaration=True)
+        exec_cmd('virsh define %s' % temp_vm_file)
+
+
+def usage():
+    print '''
+    Usage:
+    python setup_vfuel.py <storage_directory> <dha_file>
+
+    Example:
+            python setup_vfuel.py /mnt/images dha.yaml
+    '''
+
+def parse_arguments():
+    if len(sys.argv) != 3:
+        log('Incorrect number of arguments')
+        usage()
+        sys.exit(1)
+    storage_dir = sys.argv[-2]
+    dha_file = sys.argv[-1]
+    check_dir_exists(storage_dir)
+    check_file_exists(dha_file)
+    return storage_dir, dha_file
+
+def main():
+    storage_dir, dha_file = parse_arguments()
+
+    vfuel = VFuel(storage_dir, dha_file)
+    vfuel.setup_environment()
+
+if __name__ == '__main__':
+    main()