Set different ORACLE_HOME and PATH environment variable using Ansible - sql

Question

Im currently querying multiple databases and capturing the results of the query
The way Im doing it is, Im writing a task which copies a shell script, something like below
#!/bin/bash
source $HOME/bin/gsd_xenv $1 &> /dev/null
sqlplus -s <<EOF
/ as sysdba
set heading off
select d.name||','||i.instance_name||','||i.host_name||';' from v\$database d,v\$instance i;
EOF
In the playbook, Im writing the task as below:
- name: List Query [Host and DB]
shell: "/tmp/sqlscript/sql_select.sh {{item}} >> /tmp/sqlscript/output.out"
become: yes
become_method: sudo
become_user: oracle
environment:
PATH: "/home/oracle/bin:/usr/orasys/12.1.0.2r10/bin:/usr/bin:/bin:/usr/ucb:/sbin:/usr/sbin:/etc:/usr/local/bin:/oradata/epdmat/goldengate/config/sys"
ORACLE_HOME: "/usr/orasys/12.1.0.2r10"
with_items: "{{ factor_dbs.split('\n') }}"
However I have noticed that the different hosts have different ORACLE_HOME and PATHS. How can I define those variables in the playbook, so that the task picks the right ORACLE_HOME and PATH variables and execute the task successfully

Answer 1

you can define host specific variables for each of the hosts. You can write your inventory file like:
[is_hosts]
greenhat ORACLE_HOME=/tmp
localhost ORACLE_HOME=/sbin
similarly for the PATH variable
then your task:
sample playbook that demonstrates the results:
- hosts: is_hosts
gather_facts: false
vars:
tasks:
- name: task 1
shell: "env | grep -e PATH -e ORACLE_HOME"
environment:
# PATH: "{{ hostvars[inventory_hostname]['PATH']}}"
ORACLE_HOME: "{{ hostvars[inventory_hostname]['ORACLE_HOME'] }}"
register: shell_output
- name: print results
debug:
var: shell_output.stdout_lines
sample output, you can see ORACLE_HOME variable was indeed changed, and as defined per host:
TASK [print results] ************************************************************************************************************************************************************************************************
ok: [greenhat] => {
"shell_output.stdout_lines": [
"ORACLE_HOME=/tmp",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"
]
}
ok: [localhost] => {
"shell_output.stdout_lines": [
"ORACLE_HOME=/sbin",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"
]
}