On 05/08/2022 13:31, farrukh ahmed wrote:
Thanks for your reply Vladimir Botka.
This is my actual case:
defaults > main.yml
---
# defaults file for redis_configs
redis_config_path: /etc/redis/redis.conf
# Default Params Values
MAX_MEM: 3000
TCP_KEEPALIVE: 0
TCP_BACKLOG: 511
MAX_CLIENTS: 15000
TIMEOUT: 1500
And this is:
Tasks > main.yml
---
- name: "Update Redis Parameters in {{ redis_config_path }}"
lineinfile:
path: "{{ redis_config_path }}"
backrefs: yes
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
with_items:
- { regexp: '^maxmemory', line: "maxmemory {{ MAX_MEM }}mb", when: {{
MAX_MEM }} is defined }
- { regexp: '^tcp-keepalive', line: "tcp-keepalive {{ TCP_KEEPALIVE }}",
when: {{ TCP_KEEPALIVE }} is defined }
- { regexp: '^tcp-backlog', line: "tcp-backlog {{ TCP_BACKLOG }}", when: {{
TCP_BACKLOG }} is defined}
- { regexp: '^maxclients', line: "maxclients {{ MAX_CLIENTS }}", when: {{
MAX_CLIENTS }} is defined}
- { regexp: '^timeout', line: "timeout {{ TIMEOUT }}" }
I want this to check if each variable inside an item is defined then make the
changes to the line in the file, otherwise skip only those items which
variables is not defined.
For Instance, If I comment out the variable MAX_MEM from the defaults >
main.yml. like below:
# Default Params Values
##MAX_MEM: 3000
TCP_KEEPALIVE: 0
TCP_BACKLOG: 511
MAX_CLIENTS: 15000
TIMEOUT: 1500
Then the execution should skip changes to the line where MAX_MEM is undefined,
and the rest lines should be changed as they defined.
Is it possible?
Sorry, but it eludes me why you didn't come up with the actual case in the
first place. I see no point in wasting everyone's time.
Regards
Racke
On Friday, August 5, 2022 at 2:18:05 PM UTC+5 vbo...@gmail.com wrote:
On Thu, 4 Aug 2022 23:43:59 -0700 (PDT)
farrukh ahmed <farrukha...@gmail.com> wrote:
> with_items:
> - { regexp: '^text1', line: "text1 = {{ VAR1 }}", when: VAR1 is defined }
> - { regexp: '^text2', line: "text2 = {{ VAR2 }}" }
> - { regexp: '^text3', line: "text3 = {{ VAR3 }}" }
Set *default* to avoid errors, add attribute *def*, and select lines.
For example,
shell> cat pb.yml
---
- hosts: localhost
gather_facts: false
vars:
lines:
- regexp: '^text1'
line: 'text1 = {{ VAR1|d("undef") }}'
def: '{{ VAR1 is defined }}'
- regexp: '^text2'
line: 'text2 = {{ VAR2|d("undef") }}'
def: '{{ VAR2 is defined }}'
- regexp: '^text3'
line: 'text3 = {{ VAR3|d("undef") }}'
def: '{{ VAR3 is defined }}'
tasks:
- debug:
var: item
loop: "{{ lines|selectattr('def') }}"
gives
shell> ansible-playbook pb.yml -e VAR1=test
PLAY [localhost]
*********************************************************************
TASK [debug]
*********************************************************************
ok: [localhost] => (item={'regexp': '^text1', 'line': 'text1 = test',
'def': True}) => ansible_loop_var: item item:
def: true
line: text1 = test
regexp: ^text1
--
Vladimir Botka
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