dcli介绍
dcli 为Oracle Exadata Machine中提供的管理cell的工具，全名 Distributed Command Line Interface，在Exadata， Exalogic， Exalytics等系列一体机都自带这个工具, 该工具是一套python脚本，可以用文本工具直接查看编辑， 在当前的IT管理中批量管理几百台机器已不是什么稀奇的事， 所以在日常一些批量共性的常规检查和运维就需要一种维护工具自动实现或者叫自动化运维工具， 当前较流行的有puppet和ansible 产品，其中ansible是个很不错的工具，因为被监控端无需安装客户端，后期有时间再介绍。 同样dcli也是一个基于SSH协议，而且更佳轻量级，控制端一个dcli(python 脚本)和python环境 2.3以上，受控端不要任何客户端。 其实dcli可以很方便的移植到非Exadata机器上使用。
dcli部署到其它非Exadata需要修改脚本中指定的默认用户celladmin为受控端一个共用的用户如oracle DB环境的oracle。如果有一点开发语言功底建议从头阅读一篇dcli脚本。
- 1 dcli 脚本可以自已配置ssh互信，后期无密码执行
- 2 dcli脚本也可以不配置SSH，使用 -l 选项指定用户名，交互输出密码
- 3 dcli脚本可以远程执行系统自带的命令、文件目录操作、远程执行自定议shell
- 4 控制端要有python环境 2.3以上，受控端可无。
- 5 dcli可以使用dsa(非对称加密) 生成ssh key, 并把公钥通过SSH传递并追加到~/.ssh/authorized_keys中，实现ssh认证。
- 6 可以自己根据需求修改dcli脚本， 该脚本的版权是oracle所有
以上内容参考https://www.anbob.com/archives/2843.html
dcli脚本介绍
dcli本身为py脚本，通过pyinstaller打包为Linux可以执行文件，放置在/usr/local/bin目录下，既可以实现随时调用。以下是dcli的简单使用说明
[root@19db1 ~]# dcli
Error: No command specified.
Usage: dcli [options] [command]
Options:
--version show program's version number and exit
--batchsize=MAXTHDS limit the number of target cells on which to run the
command or file copy in parallel
-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
--hidestderr hide stderr for remotely executed commands in ssh
-k push ssh key to cell's authorized_keys file
-l USERID user to login as on remote cells (default: celladmin)
--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
--showbanner show banner of the remote node in ssh
-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
[root@19db1 ~]# dcli --version
version 1.3
[root@19db1 ~]# which dcli
/usr/local/bin/dcli
[root@19db1 host]# dcli -k -g /root/crmtest/host/host_all -l root <=====配置机器之间免密
root@19db1's password:
root@19db2's password:
root@zsdb's password:
19db1: ssh key added
19db2: ssh key added
zsdb: ssh key added
[oracle@19db1 ~]$ dcli -g /home/oracle/crmtest/host/host_all -l oracle hostname <======执行简单系统命令
19db1-192.168.20.126: 19db1
19db2-192.168.20.127: 19db2
zsdb-192.168.20.43: zsdb
[oracle@19db1 ~]$ dcli -g /home/oracle/crmtest/host/host_all -l oracle -x /tmp/test.sh <======执行shell脚本
19db1-192.168.20.126: total used free shared buff/cache available
19db1-192.168.20.126: Mem: 16027 1837 12987 43 1203 13799
19db1-192.168.20.126: Swap: 16383 0 16383
19db2-192.168.20.127: total used free shared buff/cache available
19db2-192.168.20.127: Mem: 16027 219 15603 19 204 15510
19db2-192.168.20.127: Swap: 16383 0 16383
zsdb-192.168.20.43: total used free shared buff/cache available
zsdb-192.168.20.43: Mem: 11853 1348 291 978 10212 9119
zsdb-192.168.20.43: Swap: 5119 2 5117
[oracle@19db1 ~]$ dcli -g /home/oracle/crmtest/host/host_all -l oracle -f p2020.ora -d /tmp <=====传输文件
[oracle@19db1 ~]$ cd /tmp
[oracle@19db1 tmp]$ ll /tmp/p2020.ora
-rw-r--r-- 1 oracle oinstall 1494 Jan 19 16:22 /tmp/p2020.ora
dcli实现跨机器检查
dcli放置到对应目录
[root@19db1 ~]# cd /usr/local/bin/
[root@19db1 bin]# ll dcli
-rwxrwxrwx 1 root root 48055 Jan 15 10:46 dcli
准备hosts文件
[oracle@19db1 crmtest]$ cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.20.126 19db1-192.168.20.126 19db1
192.168.20.127 19db2-192.168.20.127 19db2
192.168.20.43 zsdb-192.168.20.43 zsdb
192.168.20.126 19db1
[oracle@19db1 crmtest]$ more /home/oracle/crmtest/host/*
::::::::::::::
/home/oracle/crmtest/host/host_19db1
::::::::::::::
19db1-192.168.20.126
::::::::::::::
/home/oracle/crmtest/host/host_19db2
::::::::::::::
19db2-192.168.20.127
::::::::::::::
/home/oracle/crmtest/host/host_19dball
::::::::::::::
19db1-192.168.20.126
19db2-192.168.20.127
::::::::::::::
/home/oracle/crmtest/host/host_all
::::::::::::::
19db1-192.168.20.126
19db2-192.168.20.127
zsdb-192.168.20.43
::::::::::::::
/home/oracle/crmtest/host/host_zsdb43
::::::::::::::
zsdb-192.168.20.43
配置主机之间免密
--生成公钥
[oracle@19db1 .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/oracle/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/oracle/.ssh/id_rsa.
Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:UTJfE6r9Miy8yN/UUJHVw7lPbWaWEHeRb9JqUipme+I oracle@19db1
The key's randomart image is:
+---[RSA 2048]----+
| o . ==++=|
| = o.+.=o|
| . o . ..*|
| + . oo@|
| S o o X.|
| . .++o o .|
| oo=ooo |
| . . =oo. |
| o.o.Eo |
+----[SHA256]-----+
--传输公钥至所有机器
[root@19db1 host]# dcli -k -g /home/oracle/crmtest/host/host_all -l oracle
整理主机检查脚本
[oracle@19db1 crmtest]$ more crmcheck.sh
#!/bin/bash
pathpwd=$(cd `dirname $0`;pwd)
cd $pathpwd
tar -zcf `date -d "-1 day" "+%Y%m%d-%H%M%S"`.tgz log* --remove-files
## log format args
log_prefix="log_crmcheck_"
date_str="`date +%Y%m%d`"
log_name=$pathpwd/$log_prefix$date_str".log"
log_name_final=$pathpwd/$log_prefix$date_str"_final.log"
anynowtime="date +'%Y-%m-%d %H:%M:%S'"
## check type program
check_pro=""
## dcli hosts
hosts_tomcat_single="host_19db1 host_19db2"
hosts_tomcat_all="host_19dball"
hosts_mservice_single="host_19db1 host_19db2 host_zsdb43"
hosts_mservice_all="host_all"
## check process args
tomcat_filter="LiveBOS_Tomcat9_Kirin_WH"
mservice_filter="ams-server-esa-retailassessment-1.0.4-SNAPSHOT.jar ams-server-zy-1.0.1.jar cim-webapp-base-1.0.1.jar ams-server-co
ntinuous-service-1.0.1.jar ams-server-cusgroup-base-1.0.1.jar ams-server-fuwu-product-1.0.1.jar ams-server-marketing-activity-1.0.1
.jar ams-server-marketing-management-1.0.1.jar ams-server-product-adaptation-1.0.1.jar ams-server-product-financial-1.0.1.jar ams-s
erver-report-center-1.0.1.jar ams-server-rest-rpc-0.0.1-SNAPSHOT.jar ams-server-salary-assessment-1.0.1.jar ams-server-staff-relati
on-1.0.1.jar ams-server-task-center-1.0.1.jar ams-server-wm-research-0.1.jar ams-server-wm-portfolio-0.1.jar ams-server-wm-informat
ion-1.0.1.jar ams-server-wm-base-1.0.1.jar ams-server-train-exam-1.0.1.jar ams-server-mot-base-1.0.1.jar ams-server-customer-senior
-1.0.1.jar ams-server-esa-organizationassessment-1.0.4-SNAPSHOT.jar engineweb-1.0-SNAPSHOT.jar webapp-base-1.0.1.jar ams-server-cus
tomer-base-1.0.1.jar ams-server-common-base-1.0.1.jar"
## date format
NOW="echo [\`$anynowtime\`]"
function recho
{
echo "`eval $NOW` $@"
}
function errorecho
{
echo -e "`eval $NOW` 33[1m $@ 33[0m"
}
function readecho
{
while read line
do
echo "`eval $NOW` $line"
done
}
function resultcheck
{
var1=$@
var_hostname=`echo $var1|awk '{print $1}'`
var_result=`echo $var1|awk '{print $3}'`
if [ $var_result -eq "1" ]; then
recho $var_hostname $check_pro" "$v_filter "is OK" |tee -a $log_name_final
else
errorecho $var_hostname $check_pro" "$v_filter "is not running!!" |tee -a $log_name_final
fi
}
function writelog
{
while read line
do
echo "`eval $NOW` $line" >>$log_name
resultcheck $line
done
}
function headtitle
{
recho "--------------------------------------------"
recho "--------- $1 check $2"
recho "--------------------------------------------"
}
function check1
{
dcli -g $pathpwd/host/host_all -l root sh /tmp/test.sh |readecho
}
function check
{
#v_pro=$1
v_host=$2
v_filter=$3
##headtitle $v_pro "start"|tee -a $log_name $log_name_final
dcli -g $pathpwd/host/$v_host -l oracle "ps -ef|grep $v_filter|grep -vE 'grep|xargs'|wc -l|xargs echo $v_filter"|writelog
##headtitle $v_pro "end" |tee -a $log_name $log_name_final
}
function execcheck
{
check_pro="Tomcat"
for tomcat in $hosts_tomcat_all
do
headtitle $check_pro "start"|tee -a $log_name $log_name_final
check $check_pro $tomcat $tomcat_filter
headtitle $check_pro "end" |tee -a $log_name $log_name_final
done
check_pro="MService"
for mservice in $hosts_mservice_single
do
headtitle $check_pro "start"|tee -a $log_name $log_name_final
for filter in $mservice_filter
do
check $check_pro $mservice $filter
done
headtitle $check_pro "end" |tee -a $log_name $log_name_final
done
}
execcheck
执行效果
[oracle@19db1 crmtest]$ more log_crmcheck_20210118_final.log
[2021-01-18 15:37:12] --------------------------------------------
[2021-01-18 15:37:12] --------- Tomcat check start
[2021-01-18 15:37:12] --------------------------------------------
[2021-01-18 15:37:13] 19db1-192.168.20.126: Tomcat LiveBOS_Tomcat9_Kirin_WH is not running!!
[2021-01-18 15:37:13] 19db2-192.168.20.127: Tomcat LiveBOS_Tomcat9_Kirin_WH is not running!!
[2021-01-18 15:37:13] --------------------------------------------
[2021-01-18 15:37:13] --------- Tomcat check end
[2021-01-18 15:37:13] --------------------------------------------
[2021-01-18 15:37:13] --------------------------------------------
[2021-01-18 15:37:13] --------- MService check start
[2021-01-18 15:37:13] --------------------------------------------
[2021-01-18 15:37:13] 19db1-192.168.20.126: MService ams-server-esa-retailassessment-1.0.4-SNAPSHOT.jar is not running!!
[2021-01-18 15:37:13] 19db1-192.168.20.126: MService ams-server-zy-1.0.1.jar is not running!!
[2021-01-18 15:37:13] 19db1-192.168.20.126: MService cim-webapp-base-1.0.1.jar is not running!!
[2021-01-18 15:37:14] 19db1-192.168.20.126: MService ams-server-continuous-service-1.0.1.jar is not running!!
[2021-01-18 15:37:14] 19db1-192.168.20.126: MService ams-server-cusgroup-base-1.0.1.jar is not running!!
[2021-01-18 15:37:14] 19db1-192.168.20.126: MService ams-server-fuwu-product-1.0.1.jar is not running!!
[2021-01-18 15:37:14] 19db1-192.168.20.126: MService ams-server-marketing-activity-1.0.1.jar is not running!!
[2021-01-18 15:37:15] 19db1-192.168.20.126: MService ams-server-marketing-management-1.0.1.jar is not running!!
[2021-01-18 15:37:15] 19db1-192.168.20.126: MService ams-server-product-adaptation-1.0.1.jar is not running!!
[2021-01-18 15:37:15] 19db1-192.168.20.126: MService ams-server-product-financial-1.0.1.jar is not running!!
[2021-01-18 15:37:16] 19db1-192.168.20.126: MService ams-server-report-center-1.0.1.jar is not running!!
[2021-01-18 15:37:16] 19db1-192.168.20.126: MService ams-server-rest-rpc-0.0.1-SNAPSHOT.jar is not running!!
[2021-01-18 15:37:16] 19db1-192.168.20.126: MService ams-server-salary-assessment-1.0.1.jar is not running!!
[2021-01-18 15:37:16] 19db1-192.168.20.126: MService ams-server-staff-relation-1.0.1.jar is not running!!
[2021-01-18 15:37:17] 19db1-192.168.20.126: MService ams-server-task-center-1.0.1.jar is not running!!