1 告訴ambari添加什麼服務
/var/lib/ambari-server/resources/stacks/HDP/2.5/services
目錄下添加 服務名稱 比如TEST
然後在目錄下新建metainfo.xml
cat /var/lib/ambari-server/resources/stacks/HDP/2.5/services/TEST/metainfo.xml
包括服務名稱 版本號 加載資源的路徑
<metainfo>
<schemaVersion>2.0</schemaVersion>
<services>
<service>
<name>TEST</name>
<version>4.0</version>
<extends>common-services/TEST/4.0</extends>
</service>
</services>
</metainfo>
2 告訴ambari服務在哪怎麼加載
在/var/lib/ambari-server/resources/common-services下
新建 TEST/4.0 要和上面對應起來
.
└── TEST
└── 4.0
├── configuration
│ └── test-env.xml
├── metainfo.xml
└── package
└── scripts
├── params.py
└── test-ccc.py
目錄結果如下 必須按照這個模板來
gu裏面的內容也必須按照這個模板來
configuation/test-env.xml 配置引用參數
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>test_user</name>
<value>test</value>
<property-type>USER</property-type>
<description>user</description>
</property>
<property>
<name>test_group</name>
<value>test</value>
<property-type>GROUP</property-type>
<description>group</description>
</property>
<property>
<name>test_base_dir</name>
<value>/opt/test</value>
<description>test base directory</description>
</property>
<property>
<name>test_pid_dir</name>
<value>/var/run/test</value>
<description>test PID directory</description>
</property>
</configuration>
metainfo.xml 多個組件多個component
<?xml version="1.0"?>
<metainfo>
<schemaVersion>2.0</schemaVersion>
<services>
<service>
<name>test</name>
<displayName>test</displayName>
<comment>custom service</comment>
<version>3.0</version>
<components>
<component>
<name>test-ccc</name>
<displayName>test-ccc</displayName>
<category>MASTER</category>
<cardinality>1</cardinality>
<commandScript>
<script>scripts/test-ccc.py</script>
<scriptType>PYTHON</scriptType>
<timeout>1200</timeout>
</commandScript>
</component>
</components>
<osSpecifics>
<osSpecific>
<osFamily>any</osFamily>
</osSpecific>
</osSpecifics>
</service>
</services>
</metainfo>
test-ccc.py 組件安裝啓動等
#! /usr/bin/env python
import sys
import os
import glob
import pwd
import grp
import signal
import time
from resource_management import *
class Master(Script):
# Install testsearch
def install(self, env):
# Import properties defined in -config.xml file from the params class
import params
# This allows us to access the params.test_pid_file property as
# format('{test_pid_file}')
env.set_params(params)
# Install dependent packages
self.install_packages(env)
# Create user and group for test if they don't exist
try: grp.getgrnam(params.test_group)
except KeyError: Group(group_name=params.test_group)
try: pwd.getpwnam(params.test_user)
except KeyError: User(username=params.test_user,
gid=params.test_group,
groups=[params.test_group],
ignore_failures=True
)
# Create test directories
Directory([params.test_base_dir, params.test_pid_dir],
mode=0755,
cd_access='a',
owner=params.test_user,
group=params.test_group,
create_parents=True
)
# Download testsearch
cmd = format("cd {test_base_dir};wget {test_actualTimeMonitor_download}")
Execute(cmd, user="root")
cmd1 = format("cd {test_base_dir}; unzip test-actualTimeMonitor.zip")
Execute(cmd1, user="root")
cmd2 = format("cd {test_base_dir}; rm test-actualTimeMonitor.zip")
Execute(cmd2, user=params.test_user)
Execute('echo "Install complete"')
def configure(self, env):
# Import properties defined in -config.xml file from the params class
import params
# This allows us to access the params.test_pid_file property as
# format('{test_pid_file}')
env.set_params(params)
Execute('echo "Configuration complete"')
def stop(self, env):
# Import properties defined in -config.xml file from the params class
import params
# Import properties defined in -env.xml file from the status_params class
import status_params
# This allows us to access the params.test_pid_file property as
# format('{test_pid_file}')
env.set_params(params)
# Stop testsearch
cmd = format("kill -9 `cat {test_actualTimeMonitor_pid_file}`")
Execute(cmd, user="root")
def start(self, env):
# Import properties defined in -config.xml file from the params class
import params
# This allows us to access the params.test_pid_file property as
# format('{test_pid_file}')
env.set_params(params)
# Configure testsearch
self.configure(env)
# Start testsearch
cmd = format("cd {test_base_dir};sh test-actualTimeMonitor/start.sh {test_actualTimeMonitor_pid_file}")
Execute(cmd, user="root")
def status(self, env):
# Import properties defined in -env.xml file from the status_params class
import status_params
# This allows us to access the params.test_pid_file property as
# format('{test_pid_file}')
env.set_params(status_params)
#try:
# pid_file = glob.glob(status_params.test_pid_file)[0]
#except IndexError:
# pid_file = ''
# Use built-in method to check status using pidfile
check_process_status(status_params.test_actualTimeMonitor_pid_file)
if __name__ == "__main__":
Master().execute()
param.py 參數引用
#! /usr/bin/env python
from resource_management import *
import os
# config object that holds the configurations declared in the -config.xml file
config = Script.get_config()
java64_home = config['hostLevelParams']['java_home']
hostname = config['hostname']
test_user = config['configurations']['test-env']['test_user']
test_group = config['configurations']['test-env']['test_group']
test_base_dir = config['configurations']['test-env']['test_base_dir']
test_pid_dir = config['configurations']['test-env']['test_pid_dir']
test_ccc_pid_file = format("{test_pid_dir}/ccc.pid")
test_ccc_download = 'http://127.0.0.1/test-ccc.zip'
注意全部的配置項對大小寫以及下劃線特別敏感，會無法執行
所以建議 小寫 和_ 下劃線
