How could I save a registered variables to a file using Ansible?
Goal:
I would like to gather detailed information about all PCI buses and devices in the system and save the result somewhere (Ex. using lspci. Ideally, I should have results of command in my local machine for further analysis).
Save results also somewhere with the given criterion.
My playbook looks like this:
tasks:
- name: lspci Debian
command: /usr/bin/lspci
when: ansible_os_family == "Debian"
register: lspcideb
- name: lspci RedHat
command: /usr/sbin/lspci
when: ansible_os_family == "RedHat"
register: lspciredhat
- name: copy content
local_action: copy content="{{ item }}" dest="/path/to/destination/file-{{ item }}-{{ ansible_date_time.date }}-{{ ansible_hostname }}.log"
with_items:
- lspcideb
- aptlist
- lspciredhat
But saves only item_name
Good Q&A with saving 1 variable there - Ansible - Save registered variable to file.
- local_action: copy content={{ foo_result }} dest=/path/to/destination/file
My question:
How can I save multiple variables and transfer stdout to my local machine?
- name: copy content
local_action: copy content="{{ vars[item] }}" dest="/path/to/destination/file-{{ item }}-{{ ansible_date_time.date }}-{{ ansible_hostname }}.log"
with_items:
- lspcideb
- aptlist
- lspciredhat
Explanation:
You must embed variable names in Jinja2 expressions to refer to their values, otherwise you are passing strings. So:
with_items:
- "{{ lspcideb }}"
- "{{ aptlist }}"
- "{{ lspciredhat }}"
It's a universal rule in Ansible. For the same reason you used {{ item }} not item, and {{ foo_result }} not foo_result.
But you use {{ item }} also for the file name and this will likely cause a mess.
So you can refer to the variable value with: {{ vars[item] }}.
Another method would be to define a dictionary:
- name: copy content
local_action: copy content="{{ item.value }}" dest="/path/to/destination/file-{{ item.variable }}-{{ ansible_date_time.date }}-{{ ansible_hostname }}.log"
with_items:
- variable: lspcideb
value: "{{ lspcideb }}"
- variable: aptlist
value: "{{ aptlist }}"
- variable: lspciredhat
value: "{{ lspciredhat }}"
Related
I am performing a grep with multiple items.
---
- hosts: my_host
gather_facts: false
vars:
my_list:
- whatever
- something
tasks:
- name: grep for item in search path
shell: "grep -rIL {{ item }} /tmp"
register: the_grep
loop: "{{ my_list }}"
- debug:
msg: "{{ item.stdout_lines }}"
loop: "{{ the_grep.results }}"
Depending on the result, multiple files could match.
msg:
- /tmp/something.conf
- /tmp/folder/file.txt
Q: How would I configure Ansible to loop over the items in stdout_lines?
The use case I'm solving is to delete .ini sections based on the item, but in this case, Ansible doesn't loop over the stdout_lines.
- name: remove stanza from ini file
ini_file:
path: "{{ item.stdout_lines }}"
section: "{{ item.item }}"
mode: '0600'
state: absent
loop: "{{ the_grep.results }}"
when: item.stdout_lines | length > 0
It seems that this doesn't work, but configuring item.stdout_lines[0] gives the partially expected result, since Ansible will use only the first item in that list. But ofc, not the 2nd and so on.
Perhaps there's a prettier answer, but solved it by using with_nested and creating a json_query:
- name: remove stanza from ini file
ini_file:
path: "{{ item.0 }}"
section: "{{ item.1.item }}"
mode: '0600'
state: absent
with_nested:
- "{{ the_grep | json_query('results[].stdout_lines[]') }}"
- "{{ the_grep.results }}"
I have an inventory that i need to add a conditional to.
My code:
- name: Create memory inventory
add_host:
name: "{{ item.0.key }}"
group: target_hosts
with_nested:
- "{{ lookup ('dict', hosts, wantlist=True) }}"
But I want something like:
- name: Create memory inventory
add_host:
name: "{{ item.0.key }}"
{% if item.0.value.OS_Choice[:3] == 'win' %}
group:
- target_hosts
- win
{% else %}
group:
- target_hosts
- linux
{% endif %}
with_nested:
- "{{ lookup ('dict', hosts, wantlist=True) }}"
With this configuration, Ansible errors:
The offending line appears to be:
{% if item.0.value.OS_Choice[:3] == 'win' %}
^ here
Any ideas on how I can implement this conditional?
You're mixing up Jinja2 with YAML. Here you go:
- name: Create memory inventory when win
add_host:
name: "{{ item.0.key }}"
with_nested:
- "{{ lookup ('dict', hosts, wantlist=True) }}"
when: item.0.value.OS_Choice[:3] == 'win'
vars:
group:
- target_hosts
- win
- name: Create memory inventory when not win
add_host:
name: "{{ item.0.key }}"
with_nested:
- "{{ lookup ('dict', hosts, wantlist=True) }}"
when: item.0.value.OS_Choice[:3] != 'win'
vars:
group:
- target_hosts
- linux
However, Ansible gather facts about the OS already. Perhaps you want to use those, instead of configuring something like this yourself.
Building up on Kevin's answer (and fixing some wrongly placed parameters)
You should definitely do this differently, like creating dynamic groups based on detected OS in facts. See:
the group_by module
the ansible_distribution* facts that you can explore as an example with
ansible localhost -m setup -a filter="ansible_distribution*"
Meanwhile, with your current logic, you can still do this in a single task:
- name: Create memory inventory
vars:
additional_group: >-
{{ (item.0.value.OS_Choice[:3] == 'win') | ternary('win', 'linux') }}
add_host:
name: "{{ item.0.key }}"
groups:
- target_hosts
- "{{ additional_group }}"
with_nested:
- "{{ lookup ('dict', hosts, wantlist=True) }}"
Hello im working with ansible and in my docker container task im trying to set my volumes as a var.
Here is my volumes var
volumes_map: |
- "{{ airflow_script_location }}:{{ airflow_script_location_in_container }}:ro"
- "{{ airflow_data_input_location }}:{{ airflow_data_input_location_in_container }}:rw"
- "{{ airflow_data_output_success_location }}:{{ airflow_data_output_success_location_in_container }}:rw"
- "{{ airflow_data_output_failed_location }}:{{ airflow_data_output_failed_location_in_container }}:rw"
- "{{ airflow_root_location }}/requirements.txt:/requirements.txt"
- "{{ airflow_services_location }}/:{{ airflow_services_location_in_container }}:rw"
- "{{ airflow_root_location }}/airflow.cfg:{{ airflow_root_in_container }}/airflow.cfg"
- "{{ airflow_logs_location }}:{{ airflow_logs_location_in_container }}"
- "{{ airflow_conf_location}}:{{ airflow_conf_location_in_container }}"
and this is how im setting it in my volumes but this isnt working
volumes: "{{ volumes_map }}"
When i set the volumes directly without using the volumes_map it all works.
Try to Use template module
The "volumes_map" type is List,you can try
- debug: msg="{% for item in volumes_map %}{{item}}{% endfor %}"
Use Map it may help
- name: test
shell: echo "{{item}}"
with_items:
- "{{ airflow_script_location }}:{{ airflow_script_location_in_container }}:ro"
- "{{ airflow_root_location }}/airflow.cfg:{{ airflow_root_in_container }}/airflow.cfg"
- "{{ airflow_conf_location}}:{{ airflow_conf_location_in_container }}"
register: volumes_map
- debug: var=volumes_map.results|map(attribute='stdout')|list
Below is the condition
- name: Find the image
slurp:
src: "{{ IMAGE }}"
register: slurp_results
- name: Upload image
shell: |
skopeo copy -docker-archive:{{ item }}.tar docker://{{ URL }}/TESTIMAGE
with_items: "{{ (slurp_results.content|b64decode).splitlines() }}"
The above code works.
But I would need "TESTIMAGE" also to be replaced as {{ item }} like below.
skopeo copy -docker-archive:{{ item }}.tar docker://{{ URL }}/{{ item }}
How to define 2 with_items in a single shell task with 2 different slurp results
I believe you can by using the subelements module. Here is a link. Try going by this example:
- name: Setup MySQL users, given the mysql hosts and privs subkey lists
mysql_user:
name: "{{ item.0.name }}"
password: "{{ item.0.mysql.password }}"
host: "{{ item.1 }}"
priv: "{{ item.0.mysql.privs | join('/') }}"
with_subelements:
- "{{ users }}"
- mysql.hosts
Users is referred to as item.0 and hosts as item.1 and so on.
I am trying to use a register in Ansible playbook to store my output. Below is the code which i am using.
I have tried below code
- name: Check if Service Exists
stat: path=/etc/init.d/{{ item }}
register: {{ item }}_service_status
with_items:
- XXX
- YYY
- ZZZ
I need different outputs to be stored in different register variables based on the items as mentioned in the code. It is failing and not able to proceed. Any help would be appreciated.
Updated answer
I think you need to put quotes around it:
register: "{{ item }}_service_status"
Or you can use set_fact (1, 2, 3, 4)
register all the output to a single static variable output and then use a loop to iteratively build a new variable service_status (a list) by looping over each item in the static variable output
- name: Check if Service Exists
stat: path=/etc/init.d/{{ item }}
register: output
with_items:
- XXX
- YYY
- ZZZ
- name: Setting fact using output of loop
set_fact:
service_status:
- rc: "{{ item.rc }}"
stdout: "{{ item.stdout }}"
id: "{{ item.id }}"
with_items:
- "{{ output }}"
- debug:
msg: "ID and stdout: {{ item.id }} - {{ item.stdout }}"
with_items:
- "{{ service_status }}"
Initial Answer
IIUC, this link from the Ansible docs shows how to use register inside a loop (see another example in this SO post).
A couple of points
it may be more convenient to assign the list (XXX, YYY, ZZZ) to a separate variable (eg. 1, 2)
I don't know if this is part of the problem, but with_items is no longer the recommended approach to loop over a variable: instead use loop - see here for an example
vars:
items:
- XXX
- YYY
- ZZZ
- name: Check if Service Exists
stat: path=/etc/init.d/{{ item }}
register: service_status
loop: "{{ items|flatten(levels=1) }}"
- name: Show the return code and stdout
debug:
msg: "Cmd {{ item.cmd }}, return code {{ item.rc }}, stdout {{ item.stdout }}"
when: item.rc != 0
with_items: "{{ service_status.results }}"