After a 1.7+ opsmanager restarts with a new ip address, this script will update it in the database

update_opsmanager_hostname.sh

#!/bin/bash

# After a 1.7+ opsmanager restarts with a new ip address
# ssh into the opsmanager as 'ubuntu' and
# Run this file from the opsmanager as follows

# sudo su -l postgres < thisfile.sh >

# Get the current public ip or hostname from aws metadata
HN=$(curl http://169.254.169.254/latest/meta-data/public-hostname)
if [[ -z ${HN} ]];then
  HN=$(curl http://169.254.169.254/latest/meta-data/public-ipv4)
fi

# get the current hostname
psql -d tempest_production -c "SELECT id, hostname from uaa_configs"

# update to hn
psql -d tempest_production -c "UPDATE uaa_configs set hostname='${HN}' where id=1"

# show the updated hostname
psql -d tempest_production -c "SELECT id, hostname from uaa_configs"



# A typical session
# ubuntu@ip-10-0-0-108:~$ sudo su -l postgres /home/ubuntu/hn.sh
#   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
#                                  Dload  Upload   Total   Spent    Left  Speed
# 100    40  100    40    0     0   3579      0 --:--:-- --:--:-- --:--:--  4000
#  id |                 hostname
# ----+------------------------------------------
#   1 | ec2-52-91-240-11.compute-1.amazonaws.com
# (1 row)
#
# UPDATE 1
#  id |                 hostname
# ----+------------------------------------------
#   1 | ec2-52-90-243-58.compute-1.amazonaws.com
#