29
votes
Ansible: Conditionally define variables in vars file if a certain condition is met
Ansible allows one of following forms to define variable conditionally:
test:
var1: "{% if my_group_var %}value{% else %}other_value{% endif %}"
var2: "{{'value' if (...
- 466
25
votes
Accepted
Loop over Ansible variable array in Jinja2 template
You have a simple syntax error; you should be using brace brackets instead of parentheses.
You currently have:
(% for mounts in {{ ansible_mounts }} %)
Mountpoint: {{ ansible_mounts.mount }}
(% ...
- 235k
16
votes
Ansible: Conditionally define variables in vars file if a certain condition is met
I don't think you can, I usually create separate files to hold conditional variable collections and use a when clause to include them on a specific condition:
- include_vars: test_environment_vars....
- 70.8k
10
votes
Accepted
SaltStack | How to assign the shell output from cmd.run to Jinja variable?
I think the main problem is that load_avg from cmd is not a number but a string and you have to convert it. Using load_avg|float (or even load_avg|int) like this works:
{% set load_avg = salt['cmd....
- 491
6
votes
Accepted
How to do multiline Jinja2 conditionals in single block?
You can't put the if-then-else in one block unless it is an if-expression. Either:
{% if inventory_hostname in groups.aptcache %}
{% set cachehost = 'localhost' %}
{% else %}
{% set ...
- 17.6k
6
votes
Accepted
Reject in ansible list variable
The play below
- hosts: localhost
vars:
apps2: []
apps:
- {name: A, extension: .ab}
- {name: B, extension: .ab}
- {name: C, extension: .c}
tasks:
- set_fact:
...
- 3,572
4
votes
Accepted
How to select network interface given ip address in ansible across Debian and FreeBSD?
There is a difference in data collected by setup on Debian and FreeBSD.
In Ubuntu (Debian derivative) the attribute ipv4 is a dictionary. Secondary addresses are stored in the list ipv4_secondaries. ...
- 3,572
3
votes
Accepted
use a variable inside json_query in ansible/jinja
You can use a task variable:
- name: Check Dev loop
assert:
that: "'{{ item.value.lvm_device }}' == '{{ ansible_mounts | json_query(query) }}'"
with_dict: "{{ fs_configuration }}"
...
- 46
3
votes
Accepted
Ansible: How to get a subelement of a nested list of dictionaries
Figured out how to use json_query properly.
- debug:
msg: "{{ dns_zone_config | json_query(_query) }}" ...
- 41
3
votes
Accepted
what does this jinja2 Filter do in Ansible? d({})
Q: "What does this special function called d() do?"
A: d() is shortcut for default(). For example the tasks below
- set_fact:
dictX: '{{ dict1 | d({}) |
combine(dict2 |...
- 3,572
3
votes
How to trigger a custom error from inside a Jinja template?
Ansible adds the mandatory filter to Jinja, which can be used to do this:
{{ ('OK text' if condition_ok) | mandatory('Text of error message') }}
gives the failure:
fatal: [hostname]: FAILED! => {&...
- 31
3
votes
Accepted
How to trigger a custom error from inside a Jinja template?
Answer from the comment:
There is no easy way to accomplish this – only via custom plugin. For details see: https://stackoverflow.com/questions/21778252/how-to-raise-an-exception-in-a-jinja2-macro
- 3,756
2
votes
Accepted
Ansible:how to adapt the output format of map (with extract) filters
ansible_ip_addresses is a list, so you have a list (of hosts) with nested lists (with ip addresses).
You probably want to flatten it before applying unique and join:
{{ (groups['group_one']+groups['...
- 3,756
2
votes
converting two lists into a specific dictionary so it can be sorted
ok, i got it:
- name: create dict list variable, NICE ONE
set_fact:
SITES_DICT: "{{ SITES_DICT|default([]) + [{'site': item.1,'rtt': item.0}] }}"
with_together:
- "{{ rtt }}"
...
- 23
2
votes
Saltstack state.apply determine whether it is being run in test=True mode ?
In case anyone finds this and wants to know the answer - I checked on the saltstackcommunity slack and some very helpful people responded:
terminalmage [2:55 PM]
checks
looks like it's just called ...
- 31
2
votes
Ansible: Conditionally define variables in vars file if a certain condition is met
Despite it would be nice, I'm afraid that your way isn't possible (or I'm not aware right way).
I'd suggest to first prepare vars file from jinja template and then include it with include_vars. See ...
- 1,405
2
votes
Accepted
Inserting Jinja variable into a quoted string
The combination {% opens a Jinja statement. To avoid this interpretation put the brace into a variable, e.g.
BR: '{{ "{" }}'
and use it in the template
shell> cat mschap.j2
ntlm_auth ...
- 3,572
1
vote
Accepted
Supplying hosts value to Ansible playbook via Jinja conditionals
What you have provided works fine, as long as dblhr002 is listed in inventory. Host patterns only match existing hosts, they do not add new hosts to the inventory.
ec2-user@pandora ~ $ cat test.yml
- ...
- 796
1
vote
Accepted
Ansible jinja2 template from JSON format provided as extra-vars
You are passing in an object/dictionary but your code is expecting a list. You need to either wrap it in a list when you pass it in, or account for the different possible structures when you consume ...
- 796
1
vote
automated creation of a configuration file with ansible (or something else)
Q: "Read a data file, search a string (example:hostname contains "NR") ... choose the good template in a library in order to create the configuration file."
For example, given the ...
- 3,572
1
vote
Accepted
Dynamically creating a list in Ansible with jinja
Answering my own question as I have found a solution:
enable do jinja extension in ansible.cfg: jinja2_extensions = jinja2.ext.do
replace {{ inst_config.append(node_conf) }} with {% do inst_config....
- 131
1
vote
How to select network interface given ip address in ansible across Debian and FreeBSD?
Inspired from the other answer and the gist linked there
vars:
freebsd_query: "[*].{device: device, active: active, ipv6: ipv6, ipv4: ipv4[? address == '{{ ip_find_iface }}']}[?ipv4])" # ...
- 206
1
vote
Ansible: Conditionally define variables in vars file if a certain condition is met
Why no one mentions this?
_dist: "{{ ansible_lsb.id|lower if ansible_lsb.id == 'Raspbian' else ansible_distribution|lower }}"
- 11
1
vote
How to pass urlencoded string to jenkins api using ansible?
There's an error message:
no filter named 'urlencode'
If you look here, you'll notice that it's supported in Jinja2 ver 2.7+.
Please upgrade your Jinja2 package.
- 3,756
1
vote
How to trigger a custom error from inside a Jinja template?
I have written a jinja2 extension-jinja2_error to raise error.
Firstly,
pip install jinja2_error
If you use it with ansible
ANSIBLE_JINJA2_EXTENSIONS=jinja2_error.ErrorExtension ansible-playbook ...
- 11
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