364 lines
14 KiB
Python
364 lines
14 KiB
Python
# Copyright (c) 2015 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_log import log as logging
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from oslo_serialization import jsonutils
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from requests import auth
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from sahara import context
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from sahara.i18n import _
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from sahara.plugins.ambari import requests_helper as r_helper
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from sahara.plugins import exceptions as p_exc
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LOG = logging.getLogger(__name__)
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class AmbariNotFound(Exception):
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pass
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class AmbariClient(object):
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def __init__(self, instance, port="8080", **kwargs):
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kwargs.setdefault("username", "admin")
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kwargs.setdefault("password", "admin")
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self._port = port
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self._base_url = "http://{host}:{port}/api/v1".format(
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host=instance.management_ip, port=port)
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self._instance = instance
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self._http_client = instance.remote().get_http_client(port)
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self._headers = {"X-Requested-By": "sahara"}
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self._auth = auth.HTTPBasicAuth(kwargs["username"], kwargs["password"])
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self._default_client_args = {"verify": False, "auth": self._auth,
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"headers": self._headers}
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def __enter__(self):
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return self
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def __exit__(self, type, value, traceback):
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self.close()
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def close(self):
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self._instance.remote().close_http_session(self._port)
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def get(self, *args, **kwargs):
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kwargs.update(self._default_client_args)
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return self._http_client.get(*args, **kwargs)
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def post(self, *args, **kwargs):
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kwargs.update(self._default_client_args)
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return self._http_client.post(*args, **kwargs)
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def put(self, *args, **kwargs):
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kwargs.update(self._default_client_args)
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return self._http_client.put(*args, **kwargs)
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def delete(self, *args, **kwargs):
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kwargs.update(self._default_client_args)
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return self._http_client.delete(*args, **kwargs)
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def get_alerts_data(self, cluster):
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url = self._base_url + "/clusters/%s/alerts?fields=*" % cluster.name
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resp = self.get(url)
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data = self.check_response(resp)
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return data.get('items', [])
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@staticmethod
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def check_response(resp, handle_not_found=False):
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if handle_not_found and resp.status_code == 404:
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raise AmbariNotFound()
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resp.raise_for_status()
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if resp.text:
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return jsonutils.loads(resp.text)
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@staticmethod
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def req_id(response):
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if not response.text:
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raise p_exc.HadoopProvisionError("Cannot find request id. "
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"No response body")
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body = jsonutils.loads(response.text)
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if "Requests" not in body or "id" not in body["Requests"]:
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raise p_exc.HadoopProvisionError("Cannot find request id. "
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"Unexpected response format")
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return body["Requests"]["id"]
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def import_credential(self, cl_name, alias, data):
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url = self._base_url + "/clusters/%s/credentials/%s" % (cl_name, alias)
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resp = self.post(url, data=jsonutils.dumps(data))
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self.check_response(resp)
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def get_credential(self, cl_name, alias):
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url = self._base_url + "/clusters/%s/credentials/%s" % (cl_name, alias)
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resp = self.get(url)
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self.check_response(resp, handle_not_found=True)
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def regenerate_keytabs(self, cl_name):
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url = (self._base_url +
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"/clusters/%s?regenerate_keytabs=missing" % cl_name)
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data = jsonutils.dumps({"Clusters": {"security_type": "KERBEROS"}})
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resp = self.put(url, data=data)
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self.check_response(resp)
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return self.req_id(resp)
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def get_registered_hosts(self):
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url = self._base_url + "/hosts"
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resp = self.get(url)
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data = self.check_response(resp)
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return data.get("items", [])
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def get_host_info(self, host):
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url = self._base_url + "/hosts/%s" % host
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resp = self.get(url)
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data = self.check_response(resp)
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return data.get("Hosts", {})
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def update_user_password(self, user, old_password, new_password):
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url = self._base_url + "/users/%s" % user
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data = jsonutils.dumps({
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"Users": {
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"old_password": old_password,
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"password": new_password
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}
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})
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resp = self.put(url, data=data)
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self.check_response(resp)
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def create_blueprint(self, name, data):
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url = self._base_url + "/blueprints/%s" % name
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resp = self.post(url, data=jsonutils.dumps(data))
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return self.check_response(resp)
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def create_cluster(self, name, data):
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url = self._base_url + "/clusters/%s" % name
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resp = self.post(url, data=jsonutils.dumps(data))
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return self.check_response(resp).get("Requests")
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def add_host_to_cluster(self, instance):
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cluster_name = instance.cluster.name
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hostname = instance.fqdn()
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url = self._base_url + "/clusters/{cluster}/hosts/{hostname}".format(
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cluster=cluster_name, hostname=hostname)
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resp = self.post(url)
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self.check_response(resp)
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def get_config_groups(self, cluster):
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url = self._base_url + "/clusters/%s/config_groups" % cluster.name
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resp = self.get(url)
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return self.check_response(resp)
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def get_detailed_config_group(self, cluster, cfg_id):
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url = self._base_url + "/clusters/%s/config_groups/%s" % (
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cluster.name, cfg_id)
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resp = self.get(url)
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return self.check_response(resp)
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def remove_config_group(self, cluster, cfg_id):
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url = self._base_url + "/clusters/%s/config_groups/%s" % (
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cluster.name, cfg_id)
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resp = self.delete(url)
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return self.check_response(resp)
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def create_config_group(self, cluster, data):
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url = self._base_url + "/clusters/%s/config_groups" % cluster.name
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resp = self.post(url, data=jsonutils.dumps(data))
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return self.check_response(resp)
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def add_service_to_host(self, inst, service):
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url = "{pref}/clusters/{cluster}/hosts/{host}/host_components/{proc}"
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url = url.format(pref=self._base_url, cluster=inst.cluster.name,
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host=inst.fqdn(), proc=service)
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self.check_response(self.post(url))
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def start_service_on_host(self, inst, service, final_state):
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url = "{pref}/clusters/{cluster}/hosts/{host}/host_components/{proc}"
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url = url.format(
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pref=self._base_url, cluster=inst.cluster.name, host=inst.fqdn(),
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proc=service)
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data = {
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'HostRoles': {
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'state': final_state
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},
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'RequestInfo': {
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'context': "Starting service {service}, moving to state "
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"{state}".format(service=service, state=final_state)
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}
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}
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resp = self.put(url, data=jsonutils.dumps(data))
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self.check_response(resp)
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# return req_id to check health of request
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return self.req_id(resp)
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def decommission_nodemanagers(self, cluster_name, instances):
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url = self._base_url + "/clusters/%s/requests" % cluster_name
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data = r_helper.build_nodemanager_decommission_request(cluster_name,
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instances)
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resp = self.post(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def decommission_datanodes(self, cluster_name, instances):
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url = self._base_url + "/clusters/%s/requests" % cluster_name
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data = r_helper.build_datanode_decommission_request(cluster_name,
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instances)
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resp = self.post(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def remove_process_from_host(self, cluster_name, instance, process):
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url = self._base_url + "/clusters/%s/hosts/%s/host_components/%s" % (
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cluster_name, instance.fqdn(), process)
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resp = self.delete(url)
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return self.check_response(resp)
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def stop_process_on_host(self, cluster_name, instance, process):
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url = self._base_url + "/clusters/%s/hosts/%s/host_components/%s" % (
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cluster_name, instance.fqdn(), process)
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check_installed_resp = self.check_response(self.get(url))
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if check_installed_resp["HostRoles"]["state"] != "INSTALLED":
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data = {"HostRoles": {"state": "INSTALLED"},
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"RequestInfo": {"context": "Stopping %s" % process}}
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resp = self.put(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def restart_namenode(self, cluster_name, instance):
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url = self._base_url + "/clusters/%s/requests" % cluster_name
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data = r_helper.build_namenode_restart_request(cluster_name, instance)
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resp = self.post(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def restart_resourcemanager(self, cluster_name, instance):
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url = self._base_url + "/clusters/%s/requests" % cluster_name
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data = r_helper.build_resourcemanager_restart_request(cluster_name,
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instance)
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resp = self.post(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def restart_service(self, cluster_name, service_name):
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url = self._base_url + "/clusters/{}/services/{}".format(
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cluster_name, service_name)
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data = r_helper.build_stop_service_request(service_name)
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resp = self.put(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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data = r_helper.build_start_service_request(service_name)
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resp = self.put(url, data=jsonutils.dumps(data))
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self.wait_ambari_request(self.req_id(resp), cluster_name)
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def delete_host(self, cluster_name, instance):
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url = self._base_url + "/clusters/%s/hosts/%s" % (cluster_name,
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instance.fqdn())
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resp = self.delete(url)
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return self.check_response(resp)
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def check_request_status(self, cluster_name, req_id):
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url = self._base_url + "/clusters/%s/requests/%d" % (cluster_name,
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req_id)
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resp = self.get(url)
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return self.check_response(resp).get("Requests")
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def list_host_processes(self, cluster_name, instance):
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url = self._base_url + "/clusters/%s/hosts/%s" % (
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cluster_name, instance.fqdn())
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resp = self.get(url)
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body = jsonutils.loads(resp.text)
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procs = [p["HostRoles"]["component_name"]
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for p in body["host_components"]]
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return procs
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def set_up_mirror(self, stack_version, os_type, repo_id, repo_url):
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url = self._base_url + (
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"/stacks/HDP/versions/%s/operating_systems/%s/repositories/%s") % (
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stack_version, os_type, repo_id)
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data = {
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"Repositories": {
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"base_url": repo_url,
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"verify_base_url": True
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}
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}
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resp = self.put(url, data=jsonutils.dumps(data))
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self.check_response(resp)
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def set_rack_info_for_instance(self, cluster_name, instance, rack_name):
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url = self._base_url + "/clusters/%s/hosts/%s" % (
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cluster_name, instance.fqdn())
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data = {
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"Hosts": {
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"rack_info": rack_name
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}
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}
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resp = self.put(url, data=jsonutils.dumps(data))
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self.check_response(resp)
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def get_request_info(self, cluster_name, request_id):
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url = self._base_url + ("/clusters/%s/requests/%s" %
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(cluster_name, request_id))
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resp = self.check_response(self.get(url))
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return resp.get('Requests')
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def wait_ambari_requests(self, requests, cluster_name):
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requests = set(requests)
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failed = []
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context.sleep(20)
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while len(requests) > 0:
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completed, not_completed = set(), set()
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for req_id in requests:
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request = self.get_request_info(cluster_name, req_id)
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status = request.get("request_status")
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if status == 'COMPLETED':
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completed.add(req_id)
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elif status in ['IN_PROGRESS', 'PENDING']:
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not_completed.add(req_id)
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else:
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failed.append(request)
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if failed:
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msg = _("Some Ambari request(s) "
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"not in COMPLETED state: %(description)s.")
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descrs = []
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for req in failed:
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descr = _(
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"request %(id)d: %(name)s - in status %(status)s")
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descrs.append(descr %
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{'id': req.get("id"),
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'name': req.get("request_context"),
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'status': req.get("request_status")})
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raise p_exc.HadoopProvisionError(msg % {'description': descrs})
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requests = not_completed
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context.sleep(5)
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LOG.debug("Waiting for %d ambari request(s) to be completed",
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len(not_completed))
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LOG.debug("All ambari requests have been completed")
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def wait_ambari_request(self, request_id, cluster_name):
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context.sleep(20)
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while True:
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status = self.check_request_status(cluster_name, request_id)
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LOG.debug("Task %(context)s in %(status)s state. "
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"Completed %(percent).1f%%",
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{'context': status["request_context"],
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'status': status["request_status"],
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'percent': status["progress_percent"]})
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if status["request_status"] == "COMPLETED":
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return
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if status["request_status"] in ["IN_PROGRESS", "PENDING"]:
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context.sleep(5)
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else:
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raise p_exc.HadoopProvisionError(
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_("Ambari request in %s state") % status["request_status"])
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