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?
>> >
>> > --
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>>
>>
>>
>> --
>> -----------------------
>> | Henry Finucane
>> | "I hear aphorisms are popular"
>> -----------------------
>
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--
-----------------------
| Henry Finucane
| "I hear aphorisms are popular"
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