This is just a note to help out anyone that might want to use the mysql_config_editor command in their automation tools. 

the mysql_config_editor does not take a password argument so automation tools that might have before set your password in the .my.cnf file trying to use mysql_config_editor fails. 

It is possible and quite simple though with the expect tool. 

 yum -y install expect  

it works for apt-get also. 

So in this example, I will show a simple bash script version. 

1st.. my login path does not work... 

mysql --login-path=local

ERROR 1045 (28000): Access denied for user

Set this with expect 

You would execute this via your bash script.  

expect <<EOD

spawn mysql_config_editor set --login-path=local …

Managing many hosts is quite challenging task. There are many tools to solve the problem. My favorite is pdsh.

Running a command across a set of hosts is as simple as following:

# pdsh -w 192.168.177.[201-208] -R ssh reboot

Together with dshbak (which is a part of pdsh package) you can do even cooler things. Like, check which systems have yum:

# pdsh -w 192.168.177.[201-208] -R ssh "which yum" | dshbak -c
----------------
192.168.177.[201-203]
----------------
/usr/bin/yum 

Or which systems run older version of MySQL

# pdsh -w 192.168.177.[201-208] -R ssh "mysql -e \"SHOW VARIABLES LIKE 'version'\""  | dshbak -c
----------------
192.168.177.[201-203]
----------------
Variable_name   Value
version 5.6.19
----------------
192.168.177.[204-208]
----------------
Variable_name   Value
version 5.5.38

To make pdsh …

If you have multiple database servers with strange names, or if you have to hop over multiple machines to connect to any mysql database server, then you know what a pain it can be to administer such a setup. Thanks to some scripting, you can automate such tasks as follows:

Create an expect script:
/path/to/sshmysql.exp

#!/usr/bin/expect -f
#script by darren cassar
#mysqlpreacher.com

set machine [lindex $argv 0]

set timeout -1

spawn ssh username@$machine
match_max 100000
expect -exact “assword: “
send — “password\r”
send — “sudo -k; sudo su – mysql\r”
expect -exact “sudo -k; sudo su – mysql”
expect -exact “assword:”
send — “password\r”
interact

# you should change the word password in ‘send — “password\r”‘ to your login password
# if you have the same password for each …