How to automate ldap-sync for ambari

1. Installed expect first:

# yum install expect -y


2. Then create and run the following expect script:

# cat /tmp/ambari-server-sync-ldap-unattended.sh
#!/usr/bin/expect
set timeout 20
spawn /usr/sbin/ambari-server sync-ldap --groups=/etc/ambari-server/ambari-groups.csv
expect "Enter Ambari Admin login:" { send "admin\n" }
expect "Enter Ambari Admin password:" { send "notTheRealPasswordOfCourse\n" }
interact


3. If customer wants password to NOT be in plain text, ask them to look at something like Ansible which handles decrypting passwords from a file.