Find and update key values in a file using ansible role - ansible

Question

I need to update the key values using regex and replace like all user input ,username and password using a separate new task.
inventory/main.yml
service1 : abc.com/s1
service2 : def.com/s2
username : user
password: pass
values.yml
---
service1:
image:
name: <user input> # service1 image
service2:
config:
range: 127.0.0.0
image:
name: <user input> # service2 image
id:
username: # DB username
password: # DB Password
Expectation :
values.yml
---
service1:
image:
name: abc.com/s1 # service1 image
service2:
config:
range: 127.0.0.0
image:
name: def.com/s2 # service2 image
id:
username: user # DB username
password: pass # DB Password
Should create a update_values.yml task which will find the values.yml path and replace the required values
My attempt as update_values.yml
---
- name: update value
replace:
path: <path>/values.yml
regexp: "service1.image.name: <user input>"
replace: "abc.com/s1"

Answer 1

In Ansible, this is a typical use-case of a template. Create the template
shell> cat values.yml.j2
---
service1:
image:
name: {{ service1 }} # service1 image
service2:
config:
range: 127.0.0.0
image:
name: {{ service2 }} # service2 image
id:
username: {{ username }} # DB username
password: {{ password }} # DB Password
Then, the tasks below
- include_vars: inventory/main.yml
- template:
src: values.yml.j2
dest: values.yml
create the file
shell> cat values.yml
---
service1:
image:
name: abc.com/s1 # service1 image
service2:
config:
range: 127.0.0.0
image:
name: def.com/s2 # service2 image
id:
username: user # DB username
password: pass # DB Password
Q: "Is there any other method using regex and replace?"
A: You can use lineinfile if you want to. For example
- lineinfile:
path: values.yml
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
backrefs: true
loop:
- {regexp: '^(\s*)name: <user input>(.*)$', line: '\1name: {{ service2 }}\2'}
- {regexp: '^(\s*)name: <user input>(.*)$', line: '\1name: {{ service1 }}\2'}
- {regexp: '^(\s*)username:\s+.*?(\s+#.*)$', line: '\1username: {{ username }}\2'}
- {regexp: '^(\s*)password:\s+.*?(\s+#.*)$', line: '\1password: {{ password }}\2'}
change the file
shell> cat values.yml
---
service1:
image:
name: abc.com/s1 # service1 image
service2:
config:
range: 127.0.0.0
image:
name: def.com/s2 # service2 image
id:
username: user # DB username
password: pass # DB Password