I Have 2 dictionary:
- Test1:
1: pass
2: fail
3: pass
- Test2:
1.1.1.1: val1
2.2.2.2: val2
3.3.3.3: val3
Condition is when Test1.value contians fail
- name: test
debug:
msg: "{{item.1.value}} {{item.1.key}} {{item.0.key}} {{item.0.value}}"
with_together:
- "{{Test1}}"
- "{{Test2}}"
when: item.0.value == "fail"
This is not working as expected unable to get both key and value of 2 dict in one loop
In when statement you must to use item.0 or item.1 to evaluate the condition. And I recommend you use a list in with_together loop and if you are using a variable you have to use braces {{ variable }} .
Try as below:
- name: test
debug:
msg: "{{item.1 }}"
with_together:
- "{{ Test1.values() | list }}"
- "{{ Test2.values() | list }}"
when: item.0 == "fail"
You'll get
TASK [test] *******************************************************************************************************************************************************************************************************
skipping: [127.0.0.1] => (item=['pass', 'val1'])
ok: [127.0.0.1] => (item=['fail', 'val2']) => {
"msg": "val2"
}
skipping: [127.0.0.1] => (item=['pass', 'val3'])
I achieved this by :
converting dict to list using filter -> |list
since
both dict of same size I was able to get data of both dict in single loop:
- name: test
debug:
msg: "{{item.0}} {{item.1}} {{item.2}} {{item.3}}"
with_together:
- "{{ Test1.values() | list }}"
- "{{ Test2.values() | list }}"
- "{{ Test1.keys() | list }}"
- "{{ Test2.keys() | list }}"
when: item.0 == "fail"
Related
When I work with static variables it works absolutely fine. But when I try to use dynamic it does not work.
The playbook:
---
- hosts: Swi1
vars:
NewOne: 0
provider:
host: "192.168.0.30"
transport: "cli"
username: "cisco"
password: "cisco"
tasks:
- name: gather facts
register: iosfacts
ios_facts:
provider: "{{ provider }}"
- name: Display the value of the counter
debug:
msg: "NewOne={{ NewOne }} / Data type={{ NewOne | type_debug }}"
- name: interface description
set_fact:
NewOne: " {{ NewOne + 1 }}"
parents: "interface {{ item.key }}"
with_dict: "{{ iosfacts.ansible_facts.ansible_net_interfaces }}"
when: item.value.operstatus == "up"
- debug:
msg: " This is Debug {{ NewOne }}"
Gives the error:
fatal: [Swi1]: FAILED! => {"msg": "Unexpected templating type error
occurred on ({{ NewOne + 1 }}): coercing to Unicode: need string or
buffer, int found"}
If you want to do an increment on a variable, you need to recast it as an int, as set_fact will always make you end up with a string.
As an example, the two tasks:
- set_fact:
NewOne: "{{ NewOne | d(0) + 1 }}"
- debug:
var: NewOne | type_debug
Are giving
TASK [set_fact] ***************************************************************
ok: [localhost]
TASK [debug] ******************************************************************
ok: [localhost] =>
NewOne | type_debug: str
The fix is, then, to use the int filter.
Given:
- set_fact:
NewOne: "{{ NewOne | d(0) | int + 1 }}"
loop: "{{ range(1, 4) }}"
- debug:
var: NewOne
This yields the expected
TASK [set_fact] ***************************************************************
ok: [localhost] => (item=1)
ok: [localhost] => (item=2)
ok: [localhost] => (item=3)
TASK [debug] ******************************************************************
ok: [localhost] =>
NewOne: '3'
But then with your use case, there are more elaborated and shorter way to achieve the same:
- set_fact:
NewOne: >-
{{
iosfacts
.ansible_facts
.ansible_net_interfaces
| selectattr('value.operstatus', '==', 'up')
| length
}}
Given:
- debug:
msg: >-
{{
iosfacts
.ansible_facts
.ansible_net_interfaces
| selectattr('value.operstatus', '==', 'up')
| length
}}
vars:
iosfacts:
ansible_facts:
ansible_net_interfaces:
- value:
operstatus: up
- value:
operstatus: down
- value:
operstatus: up
This yields:
ok: [localhost] =>
msg: '2'
It seems you are trying to implement a loop counter with a programming paradigm, which isn't plain possible in that way since Ansible is not a programming language but a Configuration Management Tool in which you declare a state.
Your current issue is reproducible in the following way:
---
- hosts: localhost
become: false
gather_facts: false
vars:
NewOne: 0
tasks:
- name: Show var
debug:
msg: "{{ NewOne | type_debug }}"
- name: Add value
set_fact:
NewOne: " {{ NewOne + 1 }}"
loop: [1, 2, 3]
- name: Show result
debug:
msg: "{{ NewOne }}
resulting into an output of
TASK [Add value] *************
ok: [localhost] => (item=1)
fatal: [localhost]: FAILED! =>
msg: 'Unexpected templating type error occurred on ( {{ NewOne + 1 }}): coercing to Unicode: need string or buffer, int found'
Possible Solutions
You may have a look into Migrating from with_X to loop and Extended loop variables as an iteration counter is already provided there.
An other approach is given via type casting with filter in the answer of #β.εηοιτ.βε.
There as well if you are just interested in the amount of occurrences of certain status, like interface status up or down.
Further Q&A
Ansible set_fact type cast
Further Documentation
Discovering the data type
Forcing the data type
I need to get odd or even index value from a variable list:
For example:
- hosts: myhost
vars:
- var1: ["test1","test2","test3","test4","test5"]
- odd_var: []
- even_var: []
I need odd_var to be ["test1","test3","test5"] and even_var to be ["test2","test4"] and also concatenate each variable string of odd_var and even_var to be one string like:
odd_string: "test1,test3,test5"
even_string: "test2,test4"
What should i do to achieve this?
I have tried :
- name: test
set_fact:
odd_list: "{{ odd_list | default([]) + [item] }}"
loop: "{{ var1 }}"
when: "{{ lookup('ansible.utils.index_of', var1, 'eq', item) is even }}
it works but i wonder if i can get more eficient way to do this
Since you said "index value", I'm going to take you at your word and base it on position in the list, not the numbers contained in the strings.
- hosts: localhost
vars:
var1:
- test1
- test2
- test3
- test4
- test5
odd_var: "{{ var1[::2] | join(',') }}"
even_var: "{{ var1[1::2] | join(',') }}"
tasks:
- debug:
msg: "{{ odd_var }} / {{ even_var }}"
Output:
TASK [debug] *******************************************************************
ok: [localhost] => {
"msg": "test1,test3,test5 / test2,test4"
}
Using regex, checking the last character.
- var1: ["test1","test2","test3","test4","test5"]
- even: "{{ var1 | select('search','.*[02468]$') | join(',') }}"
- odd: "{{ var1 | select('search','.*[13579]$') | join(',') }}"
I am trying configure a attribute only if my_int_http is defined else I dont want it. So I coded it like below:
profiles:
- "{{ my_int_L4 }}"
- "{{ my_int_http | default(omit) }}"
However my execution fail and when check the arguments passed by the code in actual configuration it shows like below:
"profiles": [
"my_example.internal_tcp",
"__omit_place_holder__ef8c5b99e9707c044ac07fda72fa950565f248a4"
So how to pass absolutely no value where it is passing __omit_place_holder_****?
Q: "How to pass absolutely no value where it is passing omit_place_holder ?"
A1: Some filters also work with omit as expected. For example, the play
- hosts: localhost
vars:
test:
- "{{ var1|default(false) }}"
- "{{ var1|default(omit) }}"
tasks:
- debug:
msg: "{{ {'a': item}|combine({'b': true}) }}"
loop: "{{ test }}"
gives
msg:
a: false
b: true
msg:
b: true
As a sidenote, default(omit) is defined type string
- debug:
msg: "{{ item is defined }}"
loop: "{{ test }}"
- debug:
msg: "{{ item|type_debug }}"
loop: "{{ test }}"
give
TASK [debug] *************************************************************
ok: [localhost] => (item=False) =>
msg: true
ok: [localhost] => (item=__omit_place_holder__6e56f2f992faa6e262507cb77410946ea57dc7ef) =>
msg: true
TASK [debug] *************************************************************
ok: [localhost] => (item=False) =>
msg: bool
ok: [localhost] => (item=__omit_place_holder__6e56f2f992faa6e262507cb77410946ea57dc7ef) =>
msg: str
A2: No value in Ansible is YAML null. Quoting:
This is typically converted into any native null-like value (e.g., undef in Perl, None in Python).
(Given my_int_L4=bob). If the variable my_int_http defaults to null instead of omit
profiles:
- "{{ my_int_L4 }}"
- "{{ my_int_http | default(null) }}"
the list profiles will be undefined
profiles: VARIABLE IS NOT DEFINED!
Use None instead
profiles:
- "{{ my_int_L4 }}"
- "{{ my_int_http | default(None) }}"
The variable my_int_http will default to an empty string
profiles:
- bob
- ''
See also section "YAML tags and Python types" in PyYAML Documentation.
You can try something like this,
profiles:
- "{{ my_int_L4 }}"
- "{{ my_int_http | default(None) }}"
This will give you an empty string. And you can add a check while iterating over the profiles.
Please have a look at this GitHub Issue to get more understanding.
I am trying to run a nested for loop in order to retrieve a nested value.
I would like to retrieve some_value_4 when some_value_3 matches a criteria that's predefined.
{
"some_dict": {
"some_key_0": "value_0",
"some_key_1": "value_1"
},
"testval_dict": {
"test_key_0": "some_value_0",
"test_key_1": "some_value_1",
"test_key_2": "some_value_2",
"test_key_3": "some_value_3",
"test_key_4": "some_value_4"
}
}
The playbook:
- hosts: localhost
tasks:
- set_fact:
mydict: "{{ lookup('file', '/tmp/file.json' ) | from_json }}"
- debug:
msg: |
"{% for item in mydict %}
{{ item }}
{% endfor %}"
when run, it alreay looks like dict names are treated as string and nothing more:
ansible-playbook /tmp/test_playbook.yml -c local -i ', localhost'
TASK [debug] ******************************************************************
ok: [localhost] => {}
MSG:
" somee_dict
testval_dict
"
Then when I add an itme.key to the debug task, the playbook fails:
MSG:
The task includes an option with an undefined variable. The error was: 'str object' has no attribute 'value'
Thank you.
edit for clarification
In the real example, I will not know the names of the dicts, so I cannot use some_dict or testval_dict, that is why I'm trying to go over this data source in an item.key or item.value form.
Q: "{% for item in mydict %} ... dict names are treated as string and nothing more."
A: This is correct. A dictionary, when evaluated as a list, returns the list of its keys. See some examples below
- debug:
msg: "{{ mydict.keys()|list }}"
- debug:
msg: "{{ mydict[item] }}"
loop: "{{ mydict.keys()|list }}"
- debug:
msg: "{{ mydict|difference(['testval_dict']) }}"
give
msg:
- some_dict
- testval_dict
msg:
some_key_0: value_0
some_key_1: value_1
msg:
test_key_0: some_value_0
test_key_1: some_value_1
test_key_2: some_value_2
test_key_3: some_value_3
test_key_4: some_value_4
msg:
- some_dict
See How to iterate through a list of dictionaries in Jinja template?
If you need to loop over the dictionary, you can use with_dict loop functionality. This way, if you loop over mydict and get item.key you will get somee_dict and testval_dict.
tasks:
- set_fact:
mydict: "{{ lookup('file', '/tmp/file.json')|from_json }}"
# This will get the top level dictionaries somee_dict and testval_dict
- debug:
var: item.key
with_dict: "{{ mydict }}"
And if you get item.value of mydict you will get the sub-dictionary:
- debug:
var: item.value
with_dict: "{{ mydict }}"
Will produce (showing output only for testval_dict):
"item.value": {
"test_key_0": "some_value_0",
"test_key_1": "some_value_1",
"test_key_2": "some_value_2",
"test_key_3": "some_value_3",
"test_key_4": "some_value_4"
}
I've got dict with array like this
tests:
test01:
state: 'enabled'
objects:
- 'A111'
- 'B111'
test02:
state: 'enabled'
objects:
- 'C222'
- 'D222'
test03:
state: 'enabled'
objects:
- 'E333'
- 'F333'
How to combine array "objects" together in one output? The result should be
"msg": "A111,B111,E333,F333,C222,D222"
Is this what you need
- debug:
msg: "{{(tests.test01.objects,tests.test02.objects,tests.test03.objects)|flatten|join('\n')|replace('\n', ',')}}"
ok: [localhost] => {
"msg": "A111,B111,C222,D222,E333,F333"
}
Here is multiliner but without hardcoding of items
- set_fact:
tests_dict: "{{ item }}"
with_dict: "{{ tests }}"
register: tests_items
- set_fact:
tests_objects: "{{ tests_objects }} + {{ item.item.value.objects }}"
with_items: "{{ tests_items.results }}"
vars:
tests_objects: []
- debug:
msg: "{{ tests_objects | join(',') }}"
ok: [127.0.0.1] => {
"msg": "C222,D222,E333,F333,A111,B111" }