I want to sum value from dict - ansible

Question

I have the following output:
"vmoff2": [
{
"sec_sys": "CONT1",
"vm_na": {
"vm1": "Running",
"vm2": "Running",
"vm3": "Not Activated",
"vm4": "Not Activated",
"vm5": "Running",
"vm6": "Not Activated"
}
},
{
"sec_sys": "CONT2",
"vm_na": {
"vm1": "Not Activated",
"vm2": "Not Activated",
"vm3": "Running",
"vm4": "Running",
"vm5": "Not Activated",
"vm6": "Running"
}
}
]
---------------
"vmprof2": [
{
"proc": {
"vm1": "0.5",
"vm2": "0.7",
"vm3": "1.0",
"vm4": "0.5",
"vm5": "0.5",
"vm6": "0.5"
},
"sec_sys": "CONT1"
},
{
"proc": {
"vm1": "1.0",
"vm2": "0.7",
"vm3": "1.0",
"vm4": "0.7",
"vm5": "0.5",
"vm6": "0.7"
},
"sec_sys": "CONT2"
}
]
And want to sum the proc of the not activated VM, comparing with wmoff2, the out expected will be:
proc_steal:
- server: CONT1
proc: 1.7
- server: CONT2
proc: 2.4
I tried the following:
- name: create proc_steal list
set_fact:
proc_steal: >-
{{ proc_steal | default([])
+ [{
'sec_sys': item.sec_sys,
'proc': vmprof2
| selectattr('sec_sys', '==', item.sec_sys)
| selectattr('proc', '==', item.vm_na)
| sum(attribute='value')
| float
}]
}}
loop: "{{ vmoff2 }}"
loop_control:
label: "{{ item.sec_sys }}"
but i get:
"proc_steal": [
{
"proc": 0.0,
"sec_sys": "CONT1"
},
{
"proc": 0.0,
"sec_sys": "CONT2"
}
]
}
Is not making the sum, maybe because is not float, but when i tried to put float i got an error "float object is not iterable", so how can i sum that values?

Answer 1

For example, to sum all VM
- set_fact:
proc_steal: "{{ dict(_serv|zip(_proc)) }}"
vars:
_serv: "{{ vmprof2|json_query('[].sec_sys') }}"
_proc: "{{ vmprof2|json_query('[].proc.*')|
map('map', 'float')|
map('sum')|
map('round', 2)|list }}"
gives the dictionary
proc_steal:
CONT1: 3.7
CONT2: 4.6
You can convert it to a list if you want to
- set_fact:
proc_steal: "{{ dict(_serv|zip(_proc))|
dict2items(key_name='server', value_name='proc') }}"
vars:
_serv: "{{ vmprof2|json_query('[].sec_sys') }}"
_proc: "{{ vmprof2|json_query('[].proc.*')|
map('map', 'float')|
map('sum')|
map('round', 2)|list }}"
gives
proc_steal:
- proc: 3.7
server: CONT1
- proc: 4.6
server: CONT2
To sum the Not Activated VM only, create a dictionary first
- set_fact:
vm_na: "{{ dict(_serv|zip(_vmna)) }}"
vars:
_serv: "{{ vmoff2|json_query('[].sec_sys') }}"
_vmna: "{{ vmoff2|json_query('[].vm_na')|
map('dict2items')|
map('selectattr', 'value', 'eq', 'Not Activated')|
map('map', attribute='key') }}"
gives
vm_na:
CONT1:
- vm3
- vm4
- vm6
CONT2:
- vm1
- vm2
- vm5
Then use it to select the machines
- set_fact:
proc_steal: "{{ proc_steal|d({})|combine({item.sec_sys: _proc|float}) }}"
loop: "{{ vmprof2 }}"
vars:
_proc: "{{ vm_na[item.sec_sys]|map('extract', item.proc)|
map('float')|
sum|
round(2) }}"
gives the dictionary
proc_steal:
CONT1: 2.0
CONT2: 2.2
, or
- set_fact:
proc_steal: "{{ proc_steal|d([]) + [{'server': item.sec_sys,
'proc': _proc|float}] }}"
loop: "{{ vmprof2 }}"
vars:
_proc: "{{ vm_na[item.sec_sys]|map('extract', item.proc)|
map('float')|
sum|
round(2) }}"
gives the list if you want to
proc_steal:
- proc: 2.0
server: CONT1
- proc: 2.2
server: CONT2