$FHHOME/fabfile/postfix.py

$ echo a |fab -l |grep postfix
 
$ echo xx.xx.xx.xx | fab  pro  postfix.yum_install
$ echo xx.xx.xx.xx | fab  stg  postfix.

$FHHOME/fabfile/postfix.py

import sys
from fabric.api import *
from fabric.contrib import files
 
#----------------------------------------------------------------------
# Installing Postfix
#----------------------------------------------------------------------
# postfix.install_yum
@task
def install_yum():
    sudo("rpm -q postfix        > /dev/null 2>&1 || yum -y install postfix")

• Postfix Configuration /etc/postfix/main.cf

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