Create VM on the cluster before provisioning
Move the tasks around such that the XML is created and the VM is defined on the cluster before actual provisioning begins. This facilitates us setting the "provision" state of the VM so clients can see that the VM is being provisioned.
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@ -1036,147 +1036,9 @@ def create_vm(self, vm_name, vm_profile, define_vm=True, start_vm=True):
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print("Provisioning script imported successfully")
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# Phase 4 - disk creation
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# * Create each Ceph storage volume for the disks
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self.update_state(state='RUNNING', meta={'current': 4, 'total': 10, 'status': 'Creating storage volumes'})
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time.sleep(1)
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for volume in vm_data['volumes']:
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success, message = pvc_ceph.add_volume(zk_conn, volume['pool'], "{}_{}".format(vm_name, volume['disk_id']), "{}G".format(volume['disk_size_gb']))
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print(message)
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if not success:
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raise ClusterError('Failed to create volume "{}"'.format(volume['disk_id']))
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# Phase 5 - disk mapping
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# * Map each volume to the local host in order
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# * Format each volume with any specified filesystems
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# * If any mountpoints are specified, create a temporary mount directory
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# * Mount any volumes to their respective mountpoints
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self.update_state(state='RUNNING', meta={'current': 5, 'total': 10, 'status': 'Mapping, formatting, and mounting storage volumes locally'})
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time.sleep(1)
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for volume in vm_data['volumes']:
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if not volume['filesystem']:
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continue
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rbd_volume = "{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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filesystem_args_list = list()
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for arg in volume['filesystem_args'].split():
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arg_entry, arg_data = arg.split('=')
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filesystem_args_list.append(arg_entry)
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filesystem_args_list.append(arg_data)
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filesystem_args = ' '.join(filesystem_args_list)
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# Map the RBD device
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retcode, stdout, stderr = run_os_command("rbd map {}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to map volume "{}": {}'.format(rbd_volume, stderr))
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# Create the filesystem
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if volume['filesystem'] == 'swap':
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retcode, stdout, stderr = run_os_command("mkswap -f /dev/rbd/{}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to create swap on "{}": {}'.format(rbd_volume, stderr))
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else:
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retcode, stdout, stderr = run_os_command("mkfs.{} {} /dev/rbd/{}".format(volume['filesystem'], filesystem_args, rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to create {} filesystem on "{}": {}'.format(volume['filesystem'], rbd_volume, stderr))
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print("Created {} filesystem on {}:\n{}".format(volume['filesystem'], rbd_volume, stdout))
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if is_script_install:
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# Create temporary directory
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retcode, stdout, stderr = run_os_command("mktemp -d")
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if retcode:
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raise ProvisioningError("Failed to create a temporary directory: {}".format(stderr))
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temp_dir = stdout.strip()
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for volume in vm_data['volumes']:
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if not volume['mountpoint'] or volume['mountpoint'] == 'swap':
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continue
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mapped_rbd_volume = "/dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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mount_path = "{}{}".format(temp_dir, volume['mountpoint'])
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# Ensure the mount path exists (within the filesystems)
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retcode, stdout, stderr = run_os_command("mkdir -p {}".format(mount_path))
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if retcode:
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raise ProvisioningError('Failed to create mountpoint "{}": {}'.format(mount_path, stderr))
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# Mount filesystems to temporary directory
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retcode, stdout, stderr = run_os_command("mount {} {}".format(mapped_rbd_volume, mount_path))
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if retcode:
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raise ProvisioningError('Failed to mount "{}" on "{}": {}'.format(mapped_rbd_volume, mount_path, stderr))
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print("Successfully mounted {} on {}".format(mapped_rbd_volume, mount_path))
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# Phase 6 - provisioning script execution
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# * Execute the provisioning script main function ("install") passing any custom arguments
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self.update_state(state='RUNNING', meta={'current': 6, 'total': 10, 'status': 'Executing provisioning script'})
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time.sleep(1)
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if is_script_install:
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print("Running installer script")
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# Parse the script arguments
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script_arguments = dict()
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for argument in vm_data['script_arguments']:
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argument_name, argument_data = argument.split('=')
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script_arguments[argument_name] = argument_data
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# Run the script
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installer_script.install(
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vm_name=vm_name,
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vm_id=vm_id,
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temporary_directory=temp_dir,
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disks=vm_data['volumes'],
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networks=vm_data['networks'],
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**script_arguments
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)
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# Phase 7 - install cleanup
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# * Unmount any mounted volumes
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# * Remove any temporary directories
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self.update_state(state='RUNNING', meta={'current': 7, 'total': 10, 'status': 'Cleaning up local mounts and directories'})
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time.sleep(1)
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for volume in list(reversed(vm_data['volumes'])):
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if is_script_install:
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# Unmount the volume
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if volume['mountpoint'] and volume['mountpoint'] != 'swap':
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print("Cleaning up mount {}{}".format(temp_dir, volume['mountpoint']))
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mount_path = "{}{}".format(temp_dir, volume['mountpoint'])
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retcode, stdout, stderr = run_os_command("umount {}".format(mount_path))
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if retcode:
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raise ProvisioningError('Failed to unmount "{}": {}'.format(mount_path, stderr))
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# Unmap the RBD device
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if volume['filesystem']:
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print("Cleaning up RBD mapping /dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id']))
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rbd_volume = "/dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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retcode, stdout, stderr = run_os_command("rbd unmap {}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to unmap volume "{}": {}'.format(rbd_volume, stderr))
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print("Cleaning up temporary directories and files")
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if is_script_install:
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# Remove temporary mount directory (don't fail if not removed)
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retcode, stdout, stderr = run_os_command("rmdir {}".format(temp_dir))
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if retcode:
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print('Failed to delete temporary directory "{}": {}'.format(temp_dir, stderr))
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# Remote temporary script (don't fail if not removed)
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retcode, stdout, stderr = run_os_command("rm -f {}".format(script_file))
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if retcode:
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print('Failed to delete temporary script file "{}": {}'.format(script_file, stderr))
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# Phase 8 - configuration creation
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# Phase 4 - configuration creation
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# * Create the libvirt XML configuration
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self.update_state(state='RUNNING', meta={'current': 8, 'total': 10, 'status': 'Preparing Libvirt XML configuration'})
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self.update_state(state='RUNNING', meta={'current': 4, 'total': 10, 'status': 'Preparing Libvirt XML configuration'})
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time.sleep(1)
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print("Creating Libvirt configuration")
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@ -1296,26 +1158,165 @@ def create_vm(self, vm_name, vm_profile, define_vm=True, start_vm=True):
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print("Final VM schema:\n{}\n".format(vm_schema))
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# Phase 9 - definition
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# Phase 5 - definition
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# * Create the VM in the PVC cluster
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# * Start the VM in the PVC cluster
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self.update_state(state='RUNNING', meta={'current': 9, 'total': 10, 'status': 'Defining and starting VM on the cluster'})
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self.update_state(state='RUNNING', meta={'current': 5, 'total': 10, 'status': 'Defining VM on the cluster'})
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time.sleep(1)
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if start_vm and not define_vm:
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start_vm = False
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if define_vm or start_vm:
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print("Defining and starting VM on cluster")
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if define_vm:
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print("Defining VM on cluster")
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node_limit = vm_data['system_details']['node_limit']
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if node_limit:
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node_limit = node_limit.split(',')
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node_selector = vm_data['system_details']['node_selector']
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node_autostart = vm_data['system_details']['node_autostart']
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retcode, retmsg = pvc_vm.define_vm(zk_conn, vm_schema.strip(), target_node, node_limit, node_selector, node_autostart, vm_profile)
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retcode, retmsg = pvc_vm.define_vm(zk_conn, vm_schema.strip(), target_node, node_limit, node_selector, node_autostart, vm_profile, initial_state='provision')
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print(retmsg)
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else:
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print("Skipping VM definition")
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# Phase 6 - disk creation
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# * Create each Ceph storage volume for the disks
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self.update_state(state='RUNNING', meta={'current': 6, 'total': 10, 'status': 'Creating storage volumes'})
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time.sleep(1)
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for volume in vm_data['volumes']:
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success, message = pvc_ceph.add_volume(zk_conn, volume['pool'], "{}_{}".format(vm_name, volume['disk_id']), "{}G".format(volume['disk_size_gb']))
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print(message)
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if not success:
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raise ClusterError('Failed to create volume "{}"'.format(volume['disk_id']))
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# Phase 7 - disk mapping
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# * Map each volume to the local host in order
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# * Format each volume with any specified filesystems
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# * If any mountpoints are specified, create a temporary mount directory
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# * Mount any volumes to their respective mountpoints
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self.update_state(state='RUNNING', meta={'current': 7, 'total': 10, 'status': 'Mapping, formatting, and mounting storage volumes locally'})
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time.sleep(1)
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for volume in vm_data['volumes']:
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if not volume['filesystem']:
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continue
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rbd_volume = "{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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filesystem_args_list = list()
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for arg in volume['filesystem_args'].split():
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arg_entry, arg_data = arg.split('=')
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filesystem_args_list.append(arg_entry)
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filesystem_args_list.append(arg_data)
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filesystem_args = ' '.join(filesystem_args_list)
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# Map the RBD device
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retcode, stdout, stderr = run_os_command("rbd map {}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to map volume "{}": {}'.format(rbd_volume, stderr))
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# Create the filesystem
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if volume['filesystem'] == 'swap':
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retcode, stdout, stderr = run_os_command("mkswap -f /dev/rbd/{}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to create swap on "{}": {}'.format(rbd_volume, stderr))
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else:
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retcode, stdout, stderr = run_os_command("mkfs.{} {} /dev/rbd/{}".format(volume['filesystem'], filesystem_args, rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to create {} filesystem on "{}": {}'.format(volume['filesystem'], rbd_volume, stderr))
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print("Created {} filesystem on {}:\n{}".format(volume['filesystem'], rbd_volume, stdout))
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if is_script_install:
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# Create temporary directory
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retcode, stdout, stderr = run_os_command("mktemp -d")
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if retcode:
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raise ProvisioningError("Failed to create a temporary directory: {}".format(stderr))
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temp_dir = stdout.strip()
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for volume in vm_data['volumes']:
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if not volume['mountpoint'] or volume['mountpoint'] == 'swap':
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continue
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mapped_rbd_volume = "/dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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mount_path = "{}{}".format(temp_dir, volume['mountpoint'])
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# Ensure the mount path exists (within the filesystems)
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retcode, stdout, stderr = run_os_command("mkdir -p {}".format(mount_path))
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if retcode:
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raise ProvisioningError('Failed to create mountpoint "{}": {}'.format(mount_path, stderr))
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# Mount filesystems to temporary directory
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retcode, stdout, stderr = run_os_command("mount {} {}".format(mapped_rbd_volume, mount_path))
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if retcode:
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raise ProvisioningError('Failed to mount "{}" on "{}": {}'.format(mapped_rbd_volume, mount_path, stderr))
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print("Successfully mounted {} on {}".format(mapped_rbd_volume, mount_path))
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# Phase 8 - provisioning script execution
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# * Execute the provisioning script main function ("install") passing any custom arguments
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self.update_state(state='RUNNING', meta={'current': 8, 'total': 10, 'status': 'Executing provisioning script'})
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time.sleep(1)
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if is_script_install:
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print("Running installer script")
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# Parse the script arguments
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script_arguments = dict()
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for argument in vm_data['script_arguments']:
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argument_name, argument_data = argument.split('=')
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script_arguments[argument_name] = argument_data
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# Run the script
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installer_script.install(
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vm_name=vm_name,
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vm_id=vm_id,
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temporary_directory=temp_dir,
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disks=vm_data['volumes'],
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networks=vm_data['networks'],
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**script_arguments
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)
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# Phase 9 - install cleanup
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# * Unmount any mounted volumes
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# * Remove any temporary directories
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self.update_state(state='RUNNING', meta={'current': 9, 'total': 10, 'status': 'Cleaning up local mounts and directories'})
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time.sleep(1)
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for volume in list(reversed(vm_data['volumes'])):
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if is_script_install:
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# Unmount the volume
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if volume['mountpoint'] and volume['mountpoint'] != 'swap':
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print("Cleaning up mount {}{}".format(temp_dir, volume['mountpoint']))
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mount_path = "{}{}".format(temp_dir, volume['mountpoint'])
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retcode, stdout, stderr = run_os_command("umount {}".format(mount_path))
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if retcode:
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raise ProvisioningError('Failed to unmount "{}": {}'.format(mount_path, stderr))
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# Unmap the RBD device
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if volume['filesystem']:
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print("Cleaning up RBD mapping /dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id']))
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rbd_volume = "/dev/rbd/{}/{}_{}".format(volume['pool'], vm_name, volume['disk_id'])
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retcode, stdout, stderr = run_os_command("rbd unmap {}".format(rbd_volume))
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if retcode:
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raise ProvisioningError('Failed to unmap volume "{}": {}'.format(rbd_volume, stderr))
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print("Cleaning up temporary directories and files")
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if is_script_install:
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# Remove temporary mount directory (don't fail if not removed)
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retcode, stdout, stderr = run_os_command("rmdir {}".format(temp_dir))
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if retcode:
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print('Failed to delete temporary directory "{}": {}'.format(temp_dir, stderr))
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# Remote temporary script (don't fail if not removed)
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retcode, stdout, stderr = run_os_command("rm -f {}".format(script_file))
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if retcode:
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print('Failed to delete temporary script file "{}": {}'.format(script_file, stderr))
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# Phase 10 - startup
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# * Start the VM in the PVC cluster
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self.update_state(state='RUNNING', meta={'current': 10, 'total': 10, 'status': 'Starting VM'})
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time.sleep(1)
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if start_vm:
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retcode, retmsg = pvc_vm.start_vm(zk_conn, vm_name)
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