Parsing and Comparing a text file

[Mona Gopal]

Hello,

My requirement is as below:

A text file with configuration contents would be given to us by the product teams.

I will have to compare this file against the one on the remote host , find out the difference, and replace values for the variables where it doesn't match.

How is this achievable using Ansible.

Kindly suggest a solution.

Thanks in advance,

Mona G

[Johannes Kastl]

On 08.02.17 07:01 Mona Gopal wrote:

> A text file with configuration contents would be given to us by the
> product teams. I will have to compare this file against the one on
> the remote host , find out the difference, and replace values for
> the variables where it doesn't match. How is this achievable using
> Ansible. Kindly suggest a solution.

I assume you want to manually control, what the differences are.
Automating this is difficult.

I would use a template task, put the file you just got into your
ansible folder as the template src file and then run the
ansible-playbook command with --check --diff:


# File foobar.yml
- hosts: foobar
tasks:
- template:
src: "file_you_just_got"
dest: "/path/to/file/on/remote/server"
check_mode: yes

Then run the playbook foobar.yml like this:

ansible-playbook foobar.yml --check --diff

Johannes

[Brian Coca]

The copy module does this by default, run with --diff --check to see
what 'it would do'


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Brian Coca