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#!/usr/bin/env python
#
# Copyright 2018 - The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""A client that manages Cuttlefish Virtual Device on compute engine.
** CvdComputeClient **
CvdComputeClient derives from AndroidComputeClient. It manges a google
compute engine project that is setup for running Cuttlefish Virtual Devices.
It knows how to create a host instance from Cuttlefish Stable Host Image, fetch
Android build, and start Android within the host instance.
** Class hierarchy **
base_cloud_client.BaseCloudApiClient
^
|
gcompute_client.ComputeClient
^
|
android_compute_client.AndroidComputeClient
^
|
cvd_compute_client.CvdComputeClient
"""
import getpass
import logging
from acloud.internal import constants
from acloud.internal.lib import android_compute_client
from acloud.internal.lib import gcompute_client
from acloud.internal.lib import utils
logger = logging.getLogger(__name__)
_METADATA_TO_UNSET = ["cvd_01_launch",
"cvd_01_fetch_android_build_target",
"cvd_01_fetch_android_bid",
"cvd_01_fetch_system_bid",
"cvd_01_fetch_system_build_target",
"cvd_01_fetch_kernel_bid",
"cvd_01_fetch_kernel_build_target"]
class CvdComputeClient(android_compute_client.AndroidComputeClient):
"""Client that manages Anadroid Virtual Device."""
DATA_POLICY_CREATE_IF_MISSING = "create_if_missing"
# TODO: refactor CreateInstance to take in an object that contains these
# args, this method differs too and holds way too cf-specific args to put in
# the parent method.
# pylint: disable=arguments-differ,too-many-locals
@utils.TimeExecute(function_description="Creating GCE instance")
def CreateInstance(self, instance, image_name, image_project,
build_target=None, branch=None, build_id=None,
kernel_branch=None, kernel_build_id=None,
kernel_build_target=None, blank_data_disk_size_gb=None,
avd_spec=None, extra_scopes=None,
system_build_target=None, system_branch=None,
system_build_id=None):
"""Create a cuttlefish instance given stable host image and build id.
Args:
instance: instance name.
image_name: A string, the name of the GCE image.
image_project: A string, name of the project where the image lives.
Assume the default project if None.
build_target: Target name, e.g. "aosp_cf_x86_phone-userdebug"
branch: Branch name, e.g. "aosp-master"
build_id: Build id, a string, e.g. "2263051", "P2804227"
kernel_branch: Kernel branch name, e.g. "kernel-common-android-4.14"
kernel_build_id: Kernel build id, a string, e.g. "223051", "P280427"
kernel_build_target: String, Kernel build target name.
blank_data_disk_size_gb: Size of the blank data disk in GB.
avd_spec: An AVDSpec instance.
extra_scopes: A list of extra scopes to be passed to the instance.
system_build_target: Target name for the system image,
e.g. "cf_x86_phone-userdebug"
system_branch: A String, branch name for the system image.
system_build_id: A string, build id for the system image.
"""
self._CheckMachineSize()
# A blank data disk would be created on the host. Make sure the size of
# the boot disk is large enough to hold it.
boot_disk_size_gb = (
int(self.GetImage(image_name, image_project)["diskSizeGb"]) +
blank_data_disk_size_gb)
disk_args = self._GetDiskArgs(
instance, image_name, image_project, boot_disk_size_gb)
# Transitional metadata variable as outlined in go/cuttlefish-deployment
# These metadata tell the host instance to fetch and launch one
# cuttlefish device (cvd-01). Ideally we should use a separate tool to
# manage CVD devices on the host instance and not through metadata.
# TODO(b/77626419): Remove these metadata once the
# cuttlefish-google.service is turned off on the host instance.
metadata = self._metadata.copy()
metadata["cvd_01_fetch_android_build_target"] = build_target
metadata["cvd_01_fetch_android_bid"] = "{branch}/{build_id}".format(
branch=branch, build_id=build_id)
if kernel_branch and kernel_build_id:
metadata["cvd_01_fetch_kernel_bid"] = "{branch}/{build_id}".format(
branch=kernel_branch, build_id=kernel_build_id)
if kernel_build_target:
metadata["cvd_01_fetch_kernel_build_target"] = kernel_build_target
if system_build_target:
metadata["cvd_01_fetch_system_build_target"] = system_build_target
if system_branch and system_build_id:
metadata["cvd_01_fetch_system_bid"] = "{branch}/{build_id}".format(
branch=system_branch, build_id=system_build_id)
metadata["cvd_01_launch"] = self._GetLaunchCvdArgs(avd_spec)
# For the local image, we unset the _METADATA_TO_UNSET from
# metadata to tell server not to launch cvd and not to fetch image
# while instance is booted up.
if avd_spec and avd_spec.image_source == constants.IMAGE_SRC_LOCAL:
for meta in _METADATA_TO_UNSET:
metadata.pop(meta, None)
if blank_data_disk_size_gb > 0:
# Policy 'create_if_missing' would create a blank userdata disk if
# missing. If already exist, reuse the disk.
metadata["cvd_01_data_policy"] = self.DATA_POLICY_CREATE_IF_MISSING
metadata["cvd_01_blank_data_disk_size"] = str(
blank_data_disk_size_gb * 1024)
metadata["user"] = getpass.getuser()
# Update metadata by avd_spec
# for legacy create_cf cmd, we will keep using resolution.
# And always use avd_spec for acloud create cmd.
# TODO(b/118406018): deprecate resolution config and use hw_proprty for
# all create cmds.
if avd_spec:
metadata[constants.INS_KEY_AVD_TYPE] = avd_spec.avd_type
metadata[constants.INS_KEY_AVD_FLAVOR] = avd_spec.flavor
metadata["cvd_01_x_res"] = avd_spec.hw_property[constants.HW_X_RES]
metadata["cvd_01_y_res"] = avd_spec.hw_property[constants.HW_Y_RES]
metadata["cvd_01_dpi"] = avd_spec.hw_property[constants.HW_ALIAS_DPI]
if constants.HW_ALIAS_DISK in avd_spec.hw_property:
metadata["cvd_01_blank_data_disk_size"] = avd_spec.hw_property[
constants.HW_ALIAS_DISK]
# Use another METADATA_DISPLAY to record resolution which will be
# retrieved in acloud list cmd. We try not to use cvd_01_x_res
# since cvd_01_xxx metadata is going to deprecated by cuttlefish.
metadata[constants.INS_KEY_DISPLAY] = ("%sx%s (%s)" % (
avd_spec.hw_property[constants.HW_X_RES],
avd_spec.hw_property[constants.HW_Y_RES],
avd_spec.hw_property[constants.HW_ALIAS_DPI]))
else:
resolution = self._resolution.split("x")
metadata["cvd_01_dpi"] = resolution[3]
metadata["cvd_01_x_res"] = resolution[0]
metadata["cvd_01_y_res"] = resolution[1]
gcompute_client.ComputeClient.CreateInstance(
self,
instance=instance,
image_name=image_name,
image_project=image_project,
disk_args=disk_args,
metadata=metadata,
machine_type=self._machine_type,
network=self._network,
zone=self._zone,
extra_scopes=extra_scopes)
def _GetLaunchCvdArgs(self, avd_spec):
"""Define the launch_cvd args.
Set launch_cvd args with following priority.
-First: Set args from config.
-Second: Set args from cpu and memory settings.
-Third: Set args as "1" to don't pass any args.
Args:
avd_spec: An AVDSpec instance.
Returns:
String of launch_cvd args.
"""
if self._launch_args:
return self._launch_args
if avd_spec:
cpu_arg = ""
mem_arg = ""
if constants.HW_ALIAS_CPUS in avd_spec.hw_property:
cpu_arg = ("-cpus=%s" %
avd_spec.hw_property[constants.HW_ALIAS_CPUS])
if constants.HW_ALIAS_MEMORY in avd_spec.hw_property:
mem_arg = ("-memory_mb=%s" %
avd_spec.hw_property[constants.HW_ALIAS_MEMORY])
if cpu_arg or mem_arg:
return cpu_arg + " " + mem_arg
return "1"