Nope, I can't use them like that, my playbook is very complex, with some
tasks running on some hosts serially
On Saturday, August 23, 2014 12:33:28 PM UTC-7, Matt Martz wrote:
>
> Isn't what you are doing mathematically equivalent to:
>
> z = x + (y * iterations)
>
> In which case, why do you need to store each result? Why not just run the
> task where you want to use this value using with_sequence, and use this
> formula directly?
>
> Such as this contrived example:
>
> - debug: msg="{{ IPOctet + (ServerIPRange//epcrange) * item|int }}"
> with_sequence: count="{{ iterations }}"
>
> where IPOctet, ServerIPRange, epcrange, and iterations were defined such
> as:
>
> vars:
> IPOctet: 5
> ServerIPRange: 16
> epcrange: 2
> iterations: 5
>
>
> On Sat, Aug 23, 2014 at 12:09 PM, Imran Khan <[email protected]
> <javascript:>> wrote:
>
>> I posted that code piece of code for explanation purposes only, loop
>> iteration i.e. the stop value is not fixed and will vary each time
>> depending on user input (it is taken from the user at run time using
>> vars_prompt)
>>
>> Please can you tell me how to do x=x+y with x=10(will change with each
>> loop iteration) and y=5 (remains constant), inside a loop that runs ten any
>> number of time
>>
>> On Friday, August 22, 2014 10:27:42 AM UTC-7, Henry Finucane wrote:
>>>
>>> On Thu, Aug 21, 2014 at 11:17 PM, Imran Khan <[email protected]>
>>> wrote:
>>> > Thank you for your quick reply:
>>> > But this works, but not in a loop!
>>> >
>>> > - name: bashless math
>>> > set_fact:
>>> > IPOctet: "{{ (ServerIPRange|int/epcrange|int)+IPOctet|int }}"
>>> > with_sequence: start=1 end=4
>>> > register: IPOctet
>>>
>>> You may have missed a crucial bit of what I wrote- your algorithm
>>> doesn't actually require any iteration. It decomposes into
>>>
>>> IPrange/epcrange + (IPrange/epcrange + (IPrange/epcrange +
>>> (IPrange/epcrange + LastIPOctet) ) )
>>>
>>> which is the same thing as
>>>
>>> 4 * (IPrange/epcrange) + LastIPOctet
>>>
>>> >
>>> > this wont work either:
>>> >
>>> > - name: bashless math
>>> > set_fact:
>>> > IPOctet: "{{ (ServerIPRange|int/epcrange|int)+IPOctet|int }}"
>>> > register: IPOctet
>>> > with_sequence: start=1 end=4
>>> > register: my_ip_octet
>>> >
>>> > I need to save the value in IPOctet repetitively
>>> >
>>> >
>>> > On Thursday, August 21, 2014 10:40:56 PM UTC-7, Henry Finucane wrote:
>>> >>
>>> >> As an aside, you can do math in Jinja2-
>>> >>
>>> >> - name: bashless math
>>> >> set_fact:
>>> >> IPOctet: "{{ 4*(ServerIPRange/epcrange)+IPOctet }}"
>>> >>
>>> >> will do something approaching what you want.
>>> >>
>>> >> If you want to get the actual shell-out working, something like this
>>> >> is going to be enlightening:
>>> >>
>>> >> - name: local action math
>>> >> local_action: shell echo
>>> >> "{{ServerIPRange}}/{{epcrange}}+{{IPOctet}}"
>>>
>>> >> | bc
>>> >> with_sequence: start=1 end=4
>>> >> register: result
>>> >> - debug: var=result
>>> >>
>>> >> "debug: var=result" will dump a pretty-printed JSON structure, so
>>> >> you'll know what's available, and what you can use. You should try it
>>> >> with & without the with_sequence.
>>> >>
>>> >>
>>> >>
>>> >> On Thu, Aug 21, 2014 at 9:47 PM, Imran Khan <[email protected]>
>>> wrote:
>>> >> > I have 3 variables named IPOctet, ServerIPRange and epcrange. If I
>>> >> > perform
>>> >> > the following operation in my terminal, it works perfectly
>>> >> >
>>> >> > IPOctet=$(echo "$ServerIPRange/$epcrange+$IPOctet" | bc)
>>> >> >
>>> >> > How to I do something similar in a ansible inside a task, for e.g
>>> >> >
>>> >> > ---
>>> >> > - hosts: localhost
>>> >> > gather_facts: False
>>> >> >
>>> >> > vars_prompt:
>>> >> > - name: epcrange
>>> >> > prompt: Enter the number of EPCs that you want to configure
>>> >> > private: False
>>> >> > default: "1"
>>> >> > - name: serverrange
>>> >> > prompt: Enter the number of Cleints that you want to
>>> configure
>>> >> > private: False
>>> >> > defualt: "1"
>>> >> > - name: ServerIPRange
>>> >> > prompt: Enter the ServerIP range
>>> >> > private: False
>>> >> > default: '128'
>>> >> > - name: LastIPOctet
>>> >> > prompt: Enter The last Octet of the IP you just entered
>>> >> > private: False
>>> >> > default: '10'
>>> >> >
>>> >> > pre_tasks:
>>> >> >
>>> >> >
>>> >> > - name: Set some facts
>>> >> > set_fact:
>>> >> > ServerIP1: "{{ServerIP}}"
>>> >> > ServerIPRange1: "{{ServerIPRange}}"
>>> >> > IPOctet: "{{LastIPOctet}}"
>>> >> >
>>> >> > - name: local action math
>>> >> > local_action: shell {{IPOctet}}=$(echo
>>> >> > "${{ServerIPRange}}/${{epcrange}}+${{IPOctet}}" | bc) # Proper
>>> Syntax?
>>> >> > with_sequence: start=1 end=4
>>> >> > register: result
>>> >> > ignore_errors: yes
>>> >> >
>>> >> > What is the proper syntax for this command? Maybe using shell echo
>>> >> > "......."
>>> >> > . I just need to save the contents of this command into the IPOctet
>>> >> > variable
>>> >> > and IPOctet will change with each loop iteration and the results
>>> should
>>> >> > be
>>> >> > stored in my result register
>>> >> >
>>> >> > P.S: how can I access the individual items in the array
>>> sepearately?
>>> >> >
>>> >> > --
>>> >> > You received this message because you are subscribed to the Google
>>> >> > Groups
>>> >> > "Ansible Project" group.
>>> >> > To unsubscribe from this group and stop receiving emails from it,
>>> send
>>> >> > an
>>> >> > email to [email protected].
>>> >> > To post to this group, send email to [email protected].
>>> >> > To view this discussion on the web visit
>>> >> >
>>> >> > https://groups.google.com/d/msgid/ansible-project/
>>> 0b34e611-ab2c-45b6-88a9-2caf26ed5504%40googlegroups.com.
>>> >> > For more options, visit https://groups.google.com/d/optout.
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >> -----------------------
>>> >> | Henry Finucane
>>> >> | "I hear aphorisms are popular"
>>> >> -----------------------
>>> >
>>> > --
>>> > You received this message because you are subscribed to the Google
>>> Groups
>>> > "Ansible Project" group.
>>> > To unsubscribe from this group and stop receiving emails from it, send
>>> an
>>> > email to [email protected].
>>> > To post to this group, send email to [email protected].
>>> > To view this discussion on the web visit
>>> > https://groups.google.com/d/msgid/ansible-project/
>>> 54de8cec-df98-4cf0-8f0f-fb8545fef391%40googlegroups.com.
>>> >
>>> > For more options, visit https://groups.google.com/d/optout.
>>>
>>>
>>>
>>> --
>>> -----------------------
>>> | Henry Finucane
>>> | "I hear aphorisms are popular"
>>> -----------------------
>>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Ansible Project" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> To post to this group, send email to [email protected]
>> <javascript:>.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/ansible-project/fe7b19c1-b4d7-4c35-98ca-55ed6a6f76aa%40googlegroups.com
>>
>> <https://groups.google.com/d/msgid/ansible-project/fe7b19c1-b4d7-4c35-98ca-55ed6a6f76aa%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
>
> --
> Matt Martz
> [email protected] <javascript:>
> http://sivel.net/
>
--
You received this message because you are subscribed to the Google Groups
"Ansible Project" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/ansible-project/3c5e76b4-f467-477f-ab11-bd39f71bc6da%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
