Try this:
# Test random filter
- hosts: localhost
tasks:
- name: Test random
set_fact:
rand_result: "{{ 5 |random }}"
with_sequence: count=10
Basically the change of item forces a re-evaluation, even though nothing is
changing inside the loop.
However: You may still have a problem with DNS. A failed lookup (NXDOMAIN)
will set a negative cache time on the result; no nameserver will issue a
new query until the negative cache time has expired. The negative cache
time is commonly set to values between five minutes and a few hours; very
stable zones may set higher values. If the zone is under your control -
which it looks like it is - set the negative cache time low when you are
working on the zone. It's the last field in the SOA.
There are two ways around this. One way is to add "+trace" to your dig
command to force the query to begin at the root every time. It is poor form
to do this rapidly or frequently, so put a nice long pause between the name
setup and your first attempt to check the new name (aim for the time it
usually takes for a name to propagate for that zone), then use another nice
long pause between checks - at least a minute. Checking once per second for
an hour is very uncivilised indeed.
A better alternative is to do an SOA lookup, get the negative cache time
value, add one minute, and use that as your pause time.
Regards, K.
On Thu, Oct 18, 2018 at 6:51 PM Pavel Martynov <[email protected]> wrote:
> Actually, example without lookup at all:
> - name: Test random
> set_fact:
> rand_result: "{{ 5 | random }}"
> until: rand_result == 'NEVER'
> retries: 10
> delay: 1
>
> If I run ansible in verbose mode I see that on all iterations rand_result
> var have the same value, so jinja template evaluated once.
> How can I force reevaluate it on every iteration?
>
>
> чт, 18 окт. 2018 г. в 10:32, Pavel Martynov <[email protected]>:
>
>> Hi!
>>
>> I want to wait for some DNS record registered in DNS server. For example,
>> A record. So I try to use this task:
>>
>> - name: Wait DNS A record host.example.com registered
>> set_fact:
>> lookup_result: "{{ lookup('dig', 'host.example.com.') }}"
>> until: lookup_result != 'NXDOMAIN'
>> retries: 20
>> delay: 3
>>
>> But looks like lookup runs only single time at start and never again. I
>> checked it with tcpdump:
>> $ sudo tcpdump udp port 53
>>
>> Only single request/response on first loop iteration.
>> So, looks like lookup_result setted to value 'NXDOMAIN' and this value
>> checked with effectively "until: 'NXDOMAIN' != 'NXDOMAIN'" 20 times without
>> success.
>>
>> How can I force run lookup on every loop iteration?
>>
>> Ansible version 2.6.5
>>
>> Thanks.
>>
>> --
>> 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/2ad1ad66-57d4-4029-8aac-e067205e3d2c%40googlegroups.com
>> <https://groups.google.com/d/msgid/ansible-project/2ad1ad66-57d4-4029-8aac-e067205e3d2c%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
> --
> with best regards, Pavel Martynov
>
> --
> 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/CAOHFFGQZwy6C%3DTQyazsYBS2oT2v-bn3bUR%3DvXPft0_3NeJYCOg%40mail.gmail.com
> <https://groups.google.com/d/msgid/ansible-project/CAOHFFGQZwy6C%3DTQyazsYBS2oT2v-bn3bUR%3DvXPft0_3NeJYCOg%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
> For more options, visit https://groups.google.com/d/optout.
>
--
Karl Auer
Email : [email protected]
Website: http://2pisoftware.com
GPG/PGP : 958A 2647 6C44 D376 3D63 86A5 FFB2 20BC 0257 5816
Previous: F0AB 6C70 A49D 1927 6E05 81E7 AD95 268F 2AB6 40EA
--
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/CA%2B%2BT08QqDi8V6syMzhkPbbd-Pi614uNPb_OZB7ELXGc9XY-6cw%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.
