How to pass data from text file to ansible playbook? - linux

Question

I want to have text file which contains name and password
name: "Peter", "Joe", "Mark"
password: "smith", "biden", "garyy"
And I have playbook like this
---
- hosts: myhosts
become: yes
remote_user: root1
become_user: root
vars_files:
- vars.yml
vars:
ansible_ssh_private_key_file: "{{key}}"
tasks:
- name: Create users
user: name="{{item.name}}" shell=/bin/bash home="/srv/{{item.name}}" groups=root generate_ssh_key=yes ssh_key_bits=2048
loop: "{{ lookup('file', 'userspasswd.txt', wantList=True)| list }}"
- name: Set password to users
shell: echo "{{item.name}}:{{item.password}}" | sudo chpasswd
no_log: True
loop: "{{ lookup('file', 'userspasswd.txt', wantList=True)| list }}"
I am getting error like this
fatal: [xxx.xxx.xxx.xxx]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'ansible.utils.unsafe_proxy.AnsibleUnsafeText object' has no attribute 'name'\n\nThe error appears to be in '/home/root1/Documents/ansiblekernel/main.yml': line 12, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - name: Create users\n ^ here\n"}
Is there any correct way of doing this? Cause I am new to this?

Answer 1

Given the file
shell> cat userspasswd.txt
name: "Peter", "Joe", "Mark"
password: "smith", "biden", "garyy"
Neither wantList=True nor the filter list will help you to parse the file because it's not a valid YAML. If you can't change the structure of the file you'll have to parse it on your own.
Declare the variables
userspasswd_lines: "{{ lookup('file', 'userspasswd.txt').splitlines() }}"
userspasswd_values: "{{ userspasswd_lines|
map('split', ':')|
map('last')|
map('regex_replace', '\"', '')|
map('split', ',')|
map('map', 'trim')|
list }}"
userspasswd_dict: "{{ dict(userspasswd_values.0|
zip(userspasswd_values.1)) }}"
give
userspasswd_lines:
- 'name: "Peter", "Joe", "Mark"'
- 'password: "smith", "biden", "garyy"'
userspasswd_values:
- - Peter
- Joe
- Mark
- - smith
- biden
- garyy
userspasswd_dict:
Joe: biden
Mark: garyy
Peter: smith
Iterate the dictionary. Test it
- name: Create users
debug:
msg: |
name: {{ item }}
shell: /bin/bash
home: /srv/{{ item }}
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
loop: "{{ userspasswd_dict.keys()|list }}"
- name: Set password to users
debug:
msg: 'echo "{{ item.key }}:{{ item.value}}" | sudo chpasswd'
loop: "{{ userspasswd_dict|dict2items }}"
gives
TASK [Create users] **************************************************************************
ok: [test_11] => (item=Peter) =>
msg: |-
name: Peter
shell: /bin/bash
home: /srv/Peter
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
ok: [test_11] => (item=Joe) =>
msg: |-
name: Joe
shell: /bin/bash
home: /srv/Joe
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
ok: [test_11] => (item=Mark) =>
msg: |-
name: Mark
shell: /bin/bash
home: /srv/Mark
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
TASK [Set password to users] *****************************************************************
ok: [test_11] => (item={'key': 'Peter', 'value': 'smith'}) =>
msg: echo "Peter:smith" | sudo chpasswd
ok: [test_11] => (item={'key': 'Joe', 'value': 'biden'}) =>
msg: echo "Joe:biden" | sudo chpasswd
ok: [test_11] => (item={'key': 'Mark', 'value': 'garyy'}) =>
msg: echo "Mark:garyy" | sudo chpasswd
Example of a complete playbook for testing
- hosts: myhosts
vars:
userspasswd_lines: "{{ lookup('file', 'userspasswd.txt').splitlines() }}"
userspasswd_values: "{{ userspasswd_lines|
map('split', ':')|
map('last')|
map('regex_replace', '\"', '')|
map('split', ',')|
map('map', 'trim')|
list }}"
userspasswd_dict: "{{ dict(userspasswd_values.0|
zip(userspasswd_values.1)) }}"
tasks:
- block:
- debug:
var: userspasswd_lines
- debug:
var: userspasswd_values
- debug:
var: userspasswd_dict
run_once: true
- name: Create users
debug:
msg: |
name: {{ item }}
shell: /bin/bash
home: /srv/{{ item }}
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
loop: "{{ userspasswd_dict.keys()|list }}"
- name: Set password to users
debug:
msg: 'echo "{{ item.key }}:{{ item.value}}" | sudo chpasswd'
loop: "{{ userspasswd_dict|dict2items }}"- hosts: myhosts
vars:
userspasswd_lines: "{{ lookup('file', 'userspasswd.txt').splitlines() }}"
userspasswd_values: "{{ userspasswd_lines|
map('split', ':')|
map('last')|
map('regex_replace', '\"', '')|
map('split', ',')|
map('map', 'trim')|
list }}"
userspasswd_dict: "{{ dict(userspasswd_values.0|
zip(userspasswd_values.1)) }}"
tasks:
- block:
- debug:
var: userspasswd_lines
- debug:
var: userspasswd_values
- debug:
var: userspasswd_dict
run_once: true
- name: Create users
debug:
msg: |
name: {{ item }}
shell: /bin/bash
home: /srv/{{ item }}
groups: root
generate_ssh_key: yes
ssh_key_bits: 2048
loop: "{{ userspasswd_dict.keys()|list }}"
- name: Set password to users
debug:
msg: 'echo "{{ item.key }}:{{ item.value}}" | sudo chpasswd'
loop: "{{ userspasswd_dict|dict2items }}"