How to retrieve dictionary values using split method? - ansible

Question

Splitting dictionary not working in ansible.
Ansible- 2.5.15
Could anyone please help with any solution.
I was trying to fetch the values from dictionary but unable to fetch the values.
Tried code:
- hosts: localhost
connection: local
tasks:
- set_fact:
some_module: "{{ item.split(': ')[1] }}"
with_items:
- git: true
- gradle: false
Getting below error:
The task includes an option with an undefined variable. The error was: 'dict object' has no attribute 'split'
Expected Results are like below:
[true, false]

Answer 1

You can handle it as a hashmap and get the key or the value:
- hosts: localhost
connection: local
tasks:
- set_fact:
some_module: "{{ item.values }}"
with_items:
- {git: true}
- {gradle: false}

Answer 2

(Updated for Ansible 2.9 and later)
Given the list
l:
- git: true
- gradle: false
the task
- set_fact:
out: "{{ l|map('dict2items')|
flatten|
map(attribute='value')|
list }}"
gives the required result
out:
- true
- false
If the data were a dictionary, e.g.
d:
git: true
gradle: false
the solution would have been much simpler, e.g. the task below gives the same result
- set_fact:
out: "{{ d.values()|list }}"
Notes
Your data is not a dictionary. It is a list
- git: true
- gradle: false
Dictionary is below
git: true
gradle: false
Let's create from the data a dictionary first and then use the dict2items filter.
The play below
- hosts: localhost
vars:
data1:
- {git: true}
- {gradle: false}
data2: {}
tasks:
- set_fact:
data2: "{{ data2|combine(item) }}"
loop: "{{ data1 }}"
- debug:
msg: "{{ data2|dict2items|json_query('[].value') }}"
gives:
"msg": [
true,
false
]
dict2items is available since Ansible 2.6. In older versions use simple filter_plugin hash_utils.py
$ cat filter_plugins/hash_utils.py
def hash_to_tuples(h):
return h.items()
def hash_keys(h):
return h.keys()
def hash_values(h):
return h.values()
class FilterModule(object):
''' utility filters for operating on hashes '''
def filters(self):
return {
'hash_to_tuples' : hash_to_tuples
,'hash_keys' : hash_keys
,'hash_values' : hash_values
}
The task below
- debug:
msg: "{{ data2|hash_values }}"
gives the same result as the construct with dict2items above. You might want to try other filters and review the details about filter_plugin.