#!/usr/bin/env python ''' Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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. ''' import ConfigParser import StringIO import hostname import ambari_simplejson as json from NetUtil import NetUtil import os from ambari_commons import OSConst from ambari_commons.os_family_impl import OsFamilyFuncImpl, OsFamilyImpl content = """ [server] hostname=localhost url_port=8440 secured_url_port=8441 [agent] prefix={ps}tmp{ps}ambari-agent tmp_dir={ps}tmp{ps}ambari-agent{ps}tmp data_cleanup_interval=86400 data_cleanup_max_age=2592000 data_cleanup_max_size_MB = 100 ping_port=8670 cache_dir={ps}var{ps}lib{ps}ambari-agent{ps}cache parallel_execution=0 [services] [python] custom_actions_dir = {ps}var{ps}lib{ps}ambari-agent{ps}resources{ps}custom_actions [security] keysdir={ps}tmp{ps}ambari-agent server_crt=ca.crt passphrase_env_var_name=AMBARI_PASSPHRASE [heartbeat] state_interval = 6 dirs={ps}etc{ps}hadoop,{ps}etc{ps}hadoop{ps}conf,{ps}var{ps}run{ps}hadoop,{ps}var{ps}log{ps}hadoop log_lines_count=300 """.format(ps=os.sep) servicesToPidNames = { 'GLUSTERFS' : 'glusterd.pid$', 'NAMENODE': 'hadoop-{USER}-namenode.pid$', 'SECONDARY_NAMENODE': 'hadoop-{USER}-secondarynamenode.pid$', 'DATANODE': 'hadoop-{USER}-datanode.pid$', 'JOBTRACKER': 'hadoop-{USER}-jobtracker.pid$', 'TASKTRACKER': 'hadoop-{USER}-tasktracker.pid$', 'RESOURCEMANAGER': 'yarn-{USER}-resourcemanager.pid$', 'NODEMANAGER': 'yarn-{USER}-nodemanager.pid$', 'HISTORYSERVER': 'mapred-{USER}-historyserver.pid$', 'JOURNALNODE': 'hadoop-{USER}-journalnode.pid$', 'ZKFC': 'hadoop-{USER}-zkfc.pid$', 'OOZIE_SERVER': 'oozie.pid', 'ZOOKEEPER_SERVER': 'zookeeper_server.pid', 'FLUME_SERVER': 'flume-node.pid', 'TEMPLETON_SERVER': 'templeton.pid', 'GANGLIA_SERVER': 'gmetad.pid', 'GANGLIA_MONITOR': 'gmond.pid', 'HBASE_MASTER': 'hbase-{USER}-master.pid', 'HBASE_REGIONSERVER': 'hbase-{USER}-regionserver.pid', 'HCATALOG_SERVER': 'webhcat.pid', 'KERBEROS_SERVER': 'kadmind.pid', 'HIVE_SERVER': 'hive-server.pid', 'HIVE_METASTORE': 'hive.pid', 'MYSQL_SERVER': 'mysqld.pid', 'HUE_SERVER': '/var/run/hue/supervisor.pid', 'WEBHCAT_SERVER': 'webhcat.pid', } #Each service, which's pid depends on user should provide user mapping servicesToLinuxUser = { 'NAMENODE': 'hdfs_user', 'SECONDARY_NAMENODE': 'hdfs_user', 'DATANODE': 'hdfs_user', 'JOURNALNODE': 'hdfs_user', 'ZKFC': 'hdfs_user', 'JOBTRACKER': 'mapred_user', 'TASKTRACKER': 'mapred_user', 'RESOURCEMANAGER': 'yarn_user', 'NODEMANAGER': 'yarn_user', 'HISTORYSERVER': 'mapred_user', 'HBASE_MASTER': 'hbase_user', 'HBASE_REGIONSERVER': 'hbase_user', } pidPathVars = [ {'var' : 'glusterfs_pid_dir_prefix', 'defaultValue' : '/var/run'}, {'var' : 'hadoop_pid_dir_prefix', 'defaultValue' : '/var/run/hadoop'}, {'var' : 'hadoop_pid_dir_prefix', 'defaultValue' : '/var/run/hadoop'}, {'var' : 'ganglia_runtime_dir', 'defaultValue' : '/var/run/ganglia/hdp'}, {'var' : 'hbase_pid_dir', 'defaultValue' : '/var/run/hbase'}, {'var' : 'zk_pid_dir', 'defaultValue' : '/var/run/zookeeper'}, {'var' : 'oozie_pid_dir', 'defaultValue' : '/var/run/oozie'}, {'var' : 'hcat_pid_dir', 'defaultValue' : '/var/run/webhcat'}, {'var' : 'hive_pid_dir', 'defaultValue' : '/var/run/hive'}, {'var' : 'mysqld_pid_dir', 'defaultValue' : '/var/run/mysqld'}, {'var' : 'hcat_pid_dir', 'defaultValue' : '/var/run/webhcat'}, {'var' : 'yarn_pid_dir_prefix', 'defaultValue' : '/var/run/hadoop-yarn'}, {'var' : 'mapred_pid_dir_prefix', 'defaultValue' : '/var/run/hadoop-mapreduce'}, ] class AmbariConfig: TWO_WAY_SSL_PROPERTY = "security.server.two_way_ssl" AMBARI_PROPERTIES_CATEGORY = 'agentConfig' SERVER_CONNECTION_INFO = "{0}/connection_info" CONNECTION_PROTOCOL = "https" config = None net = None def __init__(self): global content self.config = ConfigParser.RawConfigParser() self.net = NetUtil() self.config.readfp(StringIO.StringIO(content)) def get(self, section, value, default=None): try: return self.config.get(section, value) except ConfigParser.Error, err: if default != None: return default raise err def set(self, section, option, value): self.config.set(section, option, value) def add_section(self, section): self.config.add_section(section) def has_section(self, section): return self.config.has_section(section) def setConfig(self, customConfig): self.config = customConfig def getConfig(self): return self.config @staticmethod @OsFamilyFuncImpl(OSConst.WINSRV_FAMILY) def getConfigFile(): if 'AMBARI_AGENT_CONF_DIR' in os.environ: return os.path.join(os.environ['AMBARI_AGENT_CONF_DIR'], "ambari-agent.ini") else: return "ambari-agent.ini" @staticmethod @OsFamilyFuncImpl(OsFamilyImpl.DEFAULT) def getConfigFile(): if 'AMBARI_AGENT_CONF_DIR' in os.environ: return os.path.join(os.environ['AMBARI_AGENT_CONF_DIR'], "ambari-agent.ini") else: return os.path.join(os.sep, "etc", "ambari-agent", "conf", "ambari-agent.ini") @staticmethod def getLogFile(): if 'AMBARI_AGENT_LOG_DIR' in os.environ: return os.path.join(os.environ['AMBARI_AGENT_LOG_DIR'], "ambari-agent.log") else: return os.path.join(os.sep, "var", "log", "ambari-agent", "ambari-agent.log") @staticmethod def getOutFile(): if 'AMBARI_AGENT_OUT_DIR' in os.environ: return os.path.join(os.environ['AMBARI_AGENT_OUT_DIR'], "ambari-agent.out") else: return os.path.join(os.sep, "var", "log", "ambari-agent", "ambari-agent.out") def has_option(self, section, option): return self.config.has_option(section, option) def remove_option(self, section, option): return self.config.remove_option(section, option) def load(self, data): self.config = ConfigParser.RawConfigParser(data) def read(self, filename): self.config.read(filename) def getServerOption(self, url, name, default=None): status, response = self.net.checkURL(url) if status is True: try: data = json.loads(response) if name in data: return data[name] except: pass return default def get_api_url(self): return "%s://%s:%s" % (self.CONNECTION_PROTOCOL, hostname.server_hostname(self), self.get('server', 'url_port')) def isTwoWaySSLConnection(self): req_url = self.get_api_url() response = self.getServerOption(self.SERVER_CONNECTION_INFO.format(req_url), self.TWO_WAY_SSL_PROPERTY, 'false') if response is None: return False elif response.lower() == "true": return True else: return False def get_parallel_exec_option(self): return int(self.get('agent', 'parallel_execution', 0)) def update_configuration_from_registration(self, reg_resp): if reg_resp and AmbariConfig.AMBARI_PROPERTIES_CATEGORY in reg_resp: if not self.has_section(AmbariConfig.AMBARI_PROPERTIES_CATEGORY): self.add_section(AmbariConfig.AMBARI_PROPERTIES_CATEGORY) for k,v in reg_resp[AmbariConfig.AMBARI_PROPERTIES_CATEGORY].items(): self.set(AmbariConfig.AMBARI_PROPERTIES_CATEGORY, k, v) pass def updateConfigServerHostname(configFile, new_host): # update agent config file agent_config = ConfigParser.ConfigParser() agent_config.read(configFile) server_host = agent_config.get('server', 'hostname') if new_host is not None and server_host != new_host: print "Updating server host from " + server_host + " to " + new_host agent_config.set('server', 'hostname', new_host) with (open(configFile, "wb")) as new_agent_config: agent_config.write(new_agent_config) def main(): print AmbariConfig().config if __name__ == "__main__": main()