自动化运维工具之：dcli 批量管理数据库主机
Posted 科讯华通
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dcli 为exadata上管理cell的工具，但具有通用性，可以用来在大量机器上并行执行命令、角本、复制文件,是一个python角本,依赖包较少(我的测试机只需python默认安装即可),受管主机不需要python,现在我们修改dcli，根据个人需求进行定制，来管理oracle主机。
一、根据个人需求,修改dcli
1、为了安全,修改默认ssh key位置,并创建ssh key
mkdir -p /home/oracle/scifmation/tools/.s
chmod 700 /home/oracle/scifmation/tools/.s
ssh-kengen -t dsa -f /home/oracle/scifmation/tools/.s/dsa
[oracle@exa1db02 (orcl2)tools]$ ls -la
drwx------ 2 oracle oinstall 4096 Mar 21 10:22 .s
dcli修改,实际行号可能有不同
line 120:
SSHSUBDIR="/home/oracle/scifmation/tools/.s"
SSHDSAFILE="dsa.pub"
line 885:
parser.add_option("-s",
help="string of options passed through to ssh",
action="store", type="string", dest="sshOptions",default="-i /home/oracle/scifmation/tools/.s/dsa")
2、修改默认ssh 登录用户
line 872:
parser.add_option("-l", default="oracle",
help="user to login as on remote cells (default: oracle) ",
action="store", type="string", dest="userID")
3、增加命令过滤，限制rm,shutdown,stop,halt,alias,尽量减少误操作
line 172:
def buildCommand( args, verbose ):
"""
Build a command string to be sent to all hosts.
Command arguments can be used to build the command to
be sent to hosts.
"""
command = ""
command2= 'echo not allow execute this command!'
if args:
for word in args:
command += " " + word;
if command.find("rm ")>=0:
return command2
elif command.find("shutdown")>=0:
return command2
elif command.find("stop")>=0:
return command2
elif command.find("halt")>=0:
return command2
elif command.find("alias")>=0:
return command2
return command
4、在管理主机上创建修改后的角本
vi /home/oracle/scifmation/tools/mcli
chmod +x /home/oracle/scifmation/tools/mcli
[oracle@exa1db02 (orcl2)tools]$ mcli
Error: No command specified.
usage: dcli2c [options] [command]
options:
--version show program's version number and exit
-c CELLS comma-separated list of cells
-d DESTFILE destination directory or file
-f FILE files to be copied
-g GROUPFILE file containing list of cells
-h, --help show help message and exit
-k push ssh key to cell's authorized_keys file
-l USERID user to login as on remote cells (default: oracle)
--maxlines=MAXLINES limit output lines from a cell when in parallel
execution over multiple cells (default: 100000)
-n abbreviate non-error output
-r REGEXP abbreviate output lines matching a regular expression
-s SSHOPTIONS string of options passed through to ssh
--scp=SCPOPTIONS string of options passed through to scp if different
from sshoptions
--serial serialize execution over the cells
-t list target cells
--unkey drop keys from target cells' authorized_keys file
-v print extra messages to stdout
--vmstat=VMSTATOPS vmstat command options
-x EXECFILE file to be copied and executed
二、增加被管主机
1、设置ssh免密码登录
[oracle@exa1db02 (orcl2)tools]$ mcli -c 192.168.1.19 -k
The authenticity of host '192.168.1.19 (192.168.1.19)' can't be established.
RSA key fingerprint is f1:f6:e0:be:7f:97:bd:3c:99:20:88:1e:3a:63:2b:6f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.19' (RSA) to the list of known hosts.
oracle@192.168.1.19's password:
192.168.1.19: ssh key added
2、创建被管主组文件
[oracle@exa1db02 (orcl2)tools]$vi yy (add 被管主机ip or hostname)
192.168.1.19
192.168.1.20
192.168.1.13
192.168.1.14
192.168.1.15
192.168.1.16
192.168.1.17
192.168.1.18
三、开始测试吧
--查看主机名
[oracle@exa1db02 (orcl2)tools]$ mcli -g zw "hostname"
192.168.1.19: testa1
192.168.1.20: testa2
192.168.1.13: testb1
192.168.1.14: testb2
192.168.1.15: testc1
192.168.1.16: testc2
192.168.1.17: testd1
192.168.1.18: testd2
--停止oem agent
[oracle@exa1db02 (orcl2)tools]$ mcli -g zw "export AGENT_HOME=/oracle/em_agent/core/12.1.0.4.0;\$AGENT_HOME/bin/emctl stop agent"
192.168.1.19: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.19: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.19: Stopping agent ..... stopped.
192.168.1.20: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.20: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.20: Stopping agent ..... stopped.
192.168.1.13: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.13: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.13: Agent is Not Running
192.168.1.14: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.14: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.14: Stopping agent ..... stopped.
192.168.1.15: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.15: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.15: Stopping agent ..... stopped.
192.168.1.16: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.16: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.16: Stopping agent ..... stopped.
192.168.1.17: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.17: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.17: Stopping agent ..... stopped.
192.168.1.18: Oracle Enterprise Manager Cloud Control 12c Release 4
192.168.1.18: Copyright (c) 1996, 2014 Oracle Corporation. All rights reserved.
192.168.1.18: Stopping agent ..... stopped.
--查看oem运行状态
[oracle@exa1db02 (orcl2)tools]$ mcli -g zw "export AGENT_HOME=/oracle/em_agent/core/12.1.0.4.0;\$AGENT_HOME/bin/emctl status agent|grep Running"
192.168.1.19: Agent is Not Running
192.168.1.20: Agent is Not Running
192.168.1.13: Agent is Not Running
192.168.1.14: Agent is Not Running
192.168.1.15: Agent is Not Running
192.168.1.16: Agent is Not Running
192.168.1.17: Agent is Not Running
192.168.1.18: Agent is Not Running
--复制文件到受管主机
[oracle@exa1db02 (orcl2)tools]$ mcli -g zw -f /home/oracle/scifmation/tools/zw -d /home/oracle/scifmation
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