fix for re global flags expression

[talek]

Hello,

When trying to provision a new Oracle setup, the following error is raised:

TASK [opitzconsulting.ansible_oracle.orahost_meta : Extract SGA parameters, choose sga_max_size over sga_target if both are definied] ***
task path: /Users/talek/.ansible/collections/ansible_collections/opitzconsulting/ansible_oracle/roles/orahost_meta/tasks/main.yml:41 
Thursday 07 November 2024  18:43:16 +0200 (0:00:00.029)       0:00:12.053 *****                                                                                                                                                                                         
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: re.error: global flags not at the start of the expression at position 1
fatal: [mol-main-abc]: FAILED! => {"msg": "Unexpected failure during module execution: global flags not at the start of the expression at position 1", "stdout": ""}

It seems that Ansible/Python is picky and expects that the global (?i) option to be specified at the very beginning of the regex:

talek@MacBookPro ~ % ansible -m debug localhost -a "msg='{{ 'SGA_target' | regex_search('^(?i)sga_target$') }}'"
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: re.error: global flags not at the start of the expression at position 1
localhost | FAILED! => {
    "changed": false
}
talek@MacBookPro ~ % ansible -m debug localhost -a "msg='{{ 'SGA_target' | regex_search('(?i)^sga_target$') }}'"
localhost | SUCCESS => {
    "msg": "SGA_target"
}

[talek]

Some additional details. It depends apparently on the python version. For example, no problem with Python 3.9.18:

$ python3 -V
Python 3.9.18
$ ansible -m debug localhost -a "msg='{{ 'SGA_target' | regex_search('^(?i)sga_target$') }}'"
[WARNING]: No inventory was parsed, only implicit localhost is available
localhost | SUCCESS => {
    "msg": "SGA_target"
}

But it fails with Python 3.12.7:

talek@mac ~ % python3 -V  
Python 3.12.7
talek@mac ~ % ansible -m debug localhost -a "msg='{{ 'SGA_target' | regex_search('^(?i)sga_target$') }}'"
[WARNING]: No inventory was parsed, only implicit localhost is available
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: re.error: global flags not at the start of the expression at position 1
localhost | FAILED! => {
    "changed": false
}