Yardstick API architecture improvement

JIRA: YARDSTICK-710

Since we have the plan to upload api v2 and gui.
We need to add put and delete method.
So the architecture need to be improved.

Change-Id: Ie20a79c26ef6c581897ce4e63980fa2895b162d2
Signed-off-by: chenjiankun <chenjiankun1@huawei.com>

1 files changed, 421 insertions, 0 deletions

diff --git a/api/resources/v1/env.py b/api/resources/v1/env.py
new file mode 100644
index 000000000..4632f15fe
--- /dev/null
+++ b/api/resources/v1/env.py
@@ -0,0 +1,421 @@
+##############################################################################
+# Copyright (c) 2016 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+from __future__ import absolute_import
+
+import errno
+import logging
+import os
+import subprocess
+import threading
+import time
+import uuid
+import glob
+import yaml
+import collections
+
+from six.moves import configparser
+from oslo_serialization import jsonutils
+from docker import Client
+
+from api.database.v1.handlers import AsyncTaskHandler
+from api.utils import influx
+from api import ApiResource
+from yardstick.common import constants as consts
+from yardstick.common import utils
+from yardstick.common.utils import result_handler
+from yardstick.common import openstack_utils
+from yardstick.common.httpClient import HttpClient
+
+
+LOG = logging.getLogger(__name__)
+LOG.setLevel(logging.DEBUG)
+
+async_handler = AsyncTaskHandler()
+
+
+class V1Env(ApiResource):
+
+    def post(self):
+        return self._dispatch_post()
+
+    def create_grafana(self, args):
+        task_id = str(uuid.uuid4())
+
+        thread = threading.Thread(target=self._create_grafana, args=(task_id,))
+        thread.start()
+
+        return result_handler(consts.API_SUCCESS, {'task_id': task_id})
+
+    def _create_grafana(self, task_id):
+        self._create_task(task_id)
+
+        client = Client(base_url=consts.DOCKER_URL)
+
+        try:
+            LOG.info('Checking if grafana image exist')
+            image = '{}:{}'.format(consts.GRAFANA_IMAGE, consts.GRAFANA_TAG)
+            if not self._check_image_exist(client, image):
+                LOG.info('Grafana image not exist, start pulling')
+                client.pull(consts.GRAFANA_IMAGE, consts.GRAFANA_TAG)
+
+            LOG.info('Createing grafana container')
+            self._create_grafana_container(client)
+            LOG.info('Grafana container is created')
+
+            time.sleep(5)
+
+            LOG.info('Creating data source for grafana')
+            self._create_data_source()
+
+            LOG.info('Creating dashboard for grafana')
+            self._create_dashboard()
+
+            self._update_task_status(task_id)
+            LOG.info('Finished')
+        except Exception as e:
+            self._update_task_error(task_id, str(e))
+            LOG.exception('Create grafana failed')
+
+    def _create_dashboard(self):
+        url = 'http://admin:admin@%s:3000/api/dashboards/db' % consts.GRAFANA_IP
+        path = os.path.join(consts.REPOS_DIR, 'dashboard', '*dashboard.json')
+
+        for i in sorted(glob.iglob(path)):
+            with open(i) as f:
+                data = jsonutils.load(f)
+            try:
+                HttpClient().post(url, data)
+            except Exception:
+                LOG.exception('Create dashboard %s failed', i)
+                raise
+
+    def _create_data_source(self):
+        url = 'http://admin:admin@%s:3000/api/datasources' % consts.GRAFANA_IP
+        data = {
+            "name": "yardstick",
+            "type": "influxdb",
+            "access": "proxy",
+            "url": "http://%s:8086" % consts.INFLUXDB_IP,
+            "password": "root",
+            "user": "root",
+            "database": "yardstick",
+            "basicAuth": True,
+            "basicAuthUser": "admin",
+            "basicAuthPassword": "admin",
+            "isDefault": False,
+        }
+        try:
+            HttpClient().post(url, data)
+        except Exception:
+            LOG.exception('Create datasources failed')
+            raise
+
+    def _create_grafana_container(self, client):
+        ports = [3000]
+        port_bindings = {k: k for k in ports}
+        restart_policy = {"MaximumRetryCount": 0, "Name": "always"}
+        host_config = client.create_host_config(port_bindings=port_bindings,
+                                                restart_policy=restart_policy)
+
+        LOG.info('Creating container')
+        container = client.create_container(image='%s:%s' %
+                                            (consts.GRAFANA_IMAGE,
+                                             consts.GRAFANA_TAG),
+                                            ports=ports,
+                                            detach=True,
+                                            tty=True,
+                                            host_config=host_config)
+        LOG.info('Starting container')
+        client.start(container)
+
+    def _check_image_exist(self, client, t):
+        return any(t in a['RepoTags'][0]
+                   for a in client.images() if a['RepoTags'])
+
+    def create_influxdb(self, args):
+        task_id = str(uuid.uuid4())
+
+        thread = threading.Thread(target=self._create_influxdb, args=(task_id,))
+        thread.start()
+
+        return result_handler(consts.API_SUCCESS, {'task_id': task_id})
+
+    def _create_influxdb(self, task_id):
+        self._create_task(task_id)
+
+        client = Client(base_url=consts.DOCKER_URL)
+
+        try:
+            LOG.info('Changing output to influxdb')
+            self._change_output_to_influxdb()
+
+            LOG.info('Checking if influxdb image exist')
+            if not self._check_image_exist(client, '%s:%s' %
+                                           (consts.INFLUXDB_IMAGE,
+                                            consts.INFLUXDB_TAG)):
+                LOG.info('Influxdb image not exist, start pulling')
+                client.pull(consts.INFLUXDB_IMAGE, tag=consts.INFLUXDB_TAG)
+
+            LOG.info('Createing influxdb container')
+            self._create_influxdb_container(client)
+            LOG.info('Influxdb container is created')
+
+            time.sleep(5)
+
+            LOG.info('Config influxdb')
+            self._config_influxdb()
+
+            self._update_task_status(task_id)
+
+            LOG.info('Finished')
+        except Exception as e:
+            self._update_task_error(task_id, str(e))
+            LOG.exception('Creating influxdb failed')
+
+    def _create_influxdb_container(self, client):
+
+        ports = [8083, 8086]
+        port_bindings = {k: k for k in ports}
+        restart_policy = {"MaximumRetryCount": 0, "Name": "always"}
+        host_config = client.create_host_config(port_bindings=port_bindings,
+                                                restart_policy=restart_policy)
+
+        LOG.info('Creating container')
+        container = client.create_container(image='%s:%s' %
+                                            (consts.INFLUXDB_IMAGE,
+                                             consts.INFLUXDB_TAG),
+                                            ports=ports,
+                                            detach=True,
+                                            tty=True,
+                                            host_config=host_config)
+        LOG.info('Starting container')
+        client.start(container)
+
+    def _config_influxdb(self):
+        try:
+            client = influx.get_data_db_client()
+            client.create_user(consts.INFLUXDB_USER,
+                               consts.INFLUXDB_PASS,
+                               consts.INFLUXDB_DB_NAME)
+            client.create_database(consts.INFLUXDB_DB_NAME)
+            LOG.info('Success to config influxDB')
+        except Exception:
+            LOG.exception('Config influxdb failed')
+
+    def _change_output_to_influxdb(self):
+        utils.makedirs(consts.CONF_DIR)
+
+        parser = configparser.ConfigParser()
+        LOG.info('Reading output sample configuration')
+        parser.read(consts.CONF_SAMPLE_FILE)
+
+        LOG.info('Set dispatcher to influxdb')
+        parser.set('DEFAULT', 'dispatcher', 'influxdb')
+        parser.set('dispatcher_influxdb', 'target',
+                   'http://%s:8086' % consts.INFLUXDB_IP)
+
+        LOG.info('Writing to %s', consts.CONF_FILE)
+        with open(consts.CONF_FILE, 'w') as f:
+            parser.write(f)
+
+    def prepare_env(self, args):
+        task_id = str(uuid.uuid4())
+
+        thread = threading.Thread(target=self._prepare_env_daemon,
+                                  args=(task_id,))
+        thread.start()
+
+        return result_handler(consts.API_SUCCESS, {'task_id': task_id})
+
+    def _already_source_openrc(self):
+        """Check if openrc is sourced already"""
+        return all(os.environ.get(k) for k in ['OS_AUTH_URL',
+                                               'OS_USERNAME',
+                                               'OS_PASSWORD',
+                                               'EXTERNAL_NETWORK'])
+
+    def _prepare_env_daemon(self, task_id):
+        self._create_task(task_id)
+
+        try:
+            self._create_directories()
+
+            rc_file = consts.OPENRC
+
+            LOG.info('Checkout Openrc Environment variable')
+            if not self._already_source_openrc():
+                LOG.info('Openrc variable not found in Environment')
+                if not os.path.exists(rc_file):
+                    LOG.info('Openrc file not found')
+                    installer_ip = os.environ.get('INSTALLER_IP',
+                                                  '192.168.200.2')
+                    installer_type = os.environ.get('INSTALLER_TYPE', 'compass')
+                    LOG.info('Getting openrc file from %s', installer_type)
+                    self._get_remote_rc_file(rc_file,
+                                             installer_ip,
+                                             installer_type)
+                    LOG.info('Source openrc file')
+                    self._source_file(rc_file)
+                    LOG.info('Appending external network')
+                    self._append_external_network(rc_file)
+                LOG.info('Openrc file exist, source openrc file')
+                self._source_file(rc_file)
+
+            LOG.info('Cleaning images')
+            self._clean_images()
+
+            LOG.info('Loading images')
+            self._load_images()
+
+            self._update_task_status(task_id)
+            LOG.info('Finished')
+        except Exception as e:
+            self._update_task_error(task_id, str(e))
+            LOG.exception('Prepare env failed')
+
+    def _create_directories(self):
+        utils.makedirs(consts.CONF_DIR)
+
+    def _source_file(self, rc_file):
+        utils.source_env(rc_file)
+
+    def _get_remote_rc_file(self, rc_file, installer_ip, installer_type):
+
+        os_fetch_script = os.path.join(consts.RELENG_DIR, consts.FETCH_SCRIPT)
+
+        try:
+            cmd = [os_fetch_script, '-d', rc_file, '-i', installer_type,
+                   '-a', installer_ip]
+            p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
+            p.communicate()
+
+            if p.returncode != 0:
+                LOG.error('Failed to fetch credentials from installer')
+        except OSError as e:
+            if e.errno != errno.EEXIST:
+                raise
+
+    def _append_external_network(self, rc_file):
+        neutron_client = openstack_utils.get_neutron_client()
+        networks = neutron_client.list_networks()['networks']
+        try:
+            ext_network = next(n['name']
+                               for n in networks if n['router:external'])
+        except StopIteration:
+            LOG.warning("Can't find external network")
+        else:
+            cmd = 'export EXTERNAL_NETWORK=%s' % ext_network
+            try:
+                with open(rc_file, 'a') as f:
+                    f.write(cmd + '\n')
+            except OSError as e:
+                if e.errno != errno.EEXIST:
+                    raise
+
+    def _clean_images(self):
+        cmd = [consts.CLEAN_IMAGES_SCRIPT]
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, cwd=consts.REPOS_DIR)
+        output = p.communicate()[0]
+        LOG.debug(output)
+
+    def _load_images(self):
+        cmd = [consts.LOAD_IMAGES_SCRIPT]
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, cwd=consts.REPOS_DIR)
+        output = p.communicate()[0]
+        LOG.debug(output)
+
+    def _create_task(self, task_id):
+        async_handler.insert({'status': 0, 'task_id': task_id})
+
+    def _update_task_status(self, task_id):
+        async_handler.update_attr(task_id, {'status': 1})
+
+    def _update_task_error(self, task_id, error):
+        async_handler.update_attr(task_id, {'status': 2, 'error': error})
+
+    def update_openrc(self, args):
+        try:
+            openrc_vars = args['openrc']
+        except KeyError:
+            return result_handler(consts.API_ERROR, 'openrc must be provided')
+        else:
+            if not isinstance(openrc_vars, collections.Mapping):
+                return result_handler(consts.API_ERROR, 'args should be a dict')
+
+        lines = ['export {}={}\n'.format(k, v) for k, v in openrc_vars.items()]
+        LOG.debug('Writing: %s', ''.join(lines))
+
+        LOG.info('Writing openrc: Writing')
+        utils.makedirs(consts.CONF_DIR)
+
+        with open(consts.OPENRC, 'w') as f:
+            f.writelines(lines)
+        LOG.info('Writing openrc: Done')
+
+        LOG.info('Source openrc: Sourcing')
+        try:
+            self._source_file(consts.OPENRC)
+        except Exception as e:
+            LOG.exception('Failed to source openrc')
+            return result_handler(consts.API_ERROR, str(e))
+        LOG.info('Source openrc: Done')
+
+        return result_handler(consts.API_SUCCESS, {'openrc': openrc_vars})
+
+    def upload_pod_file(self, args):
+        try:
+            pod_file = args['file']
+        except KeyError:
+            return result_handler(consts.API_ERROR, 'file must be provided')
+
+        LOG.info('Checking file')
+        data = yaml.load(pod_file.read())
+        if not isinstance(data, collections.Mapping):
+            return result_handler(consts.API_ERROR, 'invalid yaml file')
+
+        LOG.info('Writing file')
+        with open(consts.POD_FILE, 'w') as f:
+            yaml.dump(data, f, default_flow_style=False)
+        LOG.info('Writing finished')
+
+        return result_handler(consts.API_SUCCESS, {'pod_info': data})
+
+    def update_pod_file(self, args):
+        try:
+            pod_dic = args['pod']
+        except KeyError:
+            return result_handler(consts.API_ERROR, 'pod must be provided')
+        else:
+            if not isinstance(pod_dic, collections.Mapping):
+                return result_handler(consts.API_ERROR, 'pod should be a dict')
+
+        LOG.info('Writing file')
+        with open(consts.POD_FILE, 'w') as f:
+            yaml.dump(pod_dic, f, default_flow_style=False)
+        LOG.info('Writing finished')
+
+        return result_handler(consts.API_SUCCESS, {'pod_info': pod_dic})
+
+    def update_hosts(self, hosts_ip):
+        if not isinstance(hosts_ip, collections.Mapping):
+            return result_handler(consts.API_ERROR, 'args should be a dict')
+        LOG.info('Writing hosts: Writing')
+        LOG.debug('Writing: %s', hosts_ip)
+        cmd = ["sudo", "python", "write_hosts.py"]
+        p = subprocess.Popen(cmd,
+                             stdin=subprocess.PIPE,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE,
+                             cwd=os.path.join(consts.REPOS_DIR,
+                                              "api/resources"))
+        _, err = p.communicate(jsonutils.dumps(hosts_ip))
+        if p.returncode != 0:
+            return result_handler(consts.API_ERROR, err)
+        LOG.info('Writing hosts: Done')
+        return result_handler(consts.API_SUCCESS, 'success')