[ansible-project] Possible approaches to iteration

[tom . reynick]

I would like to understand semantics of `with_items` in ansible and compare 
this approach to `map` for example. 

For example, let consider:  

`{{ ["1","2", "3"]  | map('regex_replace', '^(.*)$', \1'some tail')  tail 
}}`

How to reach the same effect using `with_items` ? 
And in general how does it work ? Where is the body of this loop ?
For example (got from some stack overflow thread):

---
- hosts: localhost
  tasks:
  - name: set fact 1
set_fact: foo="[ 'zero' ]"

  - name: set fact 2
set_fact: foo="{{ foo }} + [ 'one' ]"

  - name: set fact 3
set_fact: foo="{{ foo }} + [ 'two', 'three' ]"

  - name: set fact 4
set_fact: foo="{{ foo }} + [ '{{ item }}' ]"
with_items:
  - four
  - five
  - six

  - debug: var=foo

To sum up, the question is about which approach is better (`map` vs 
`with_items`) and possible details of working (e.g. where  is body of this 
loop) 
Each detail of working ansible is welcome!

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[ansible-project] map vs with_items

[tom . reynick]

I would like to understand semantics of `with_items` in ansible and compare 
this approach to `map` for example. 

For example, let consider:  

`{{ ["1","2", "3"]  | map('regex_replace', '^(.*)$', \1'some tail')  tail 
}}`

How to reach the same effect using `with_items` ? 
And in general how does it work ? Where is the body of this loop ?
For example (got from some stack overflow thread):

---
- hosts: localhost
  tasks:
  - name: set fact 1
set_fact: foo="[ 'zero' ]"

  - name: set fact 2
set_fact: foo="{{ foo }} + [ 'one' ]"

  - name: set fact 3
set_fact: foo="{{ foo }} + [ 'two', 'three' ]"

  - name: set fact 4
set_fact: foo="{{ foo }} + [ '{{ item }}' ]"
with_items:
  - four
  - five
  - six

  - debug: var=foo

To sum up, the question is about which approach is better (`map` vs 
`with_items`) and possible details of working (e.g. where  is body of this 
loop) 
Each detail of working ansible is welcome!

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[ansible-project] ansible_processor_vcpus - What does mean this value ?

[tom . reynick]

Hi,  
can someone try to explain what does it mean *ansible_processor_vcpus ?*
How does it refer to number of cores, number of threads and so on.  What 
about HT capability of processor ?

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