Strangely, if I use ;
ip: "{% for host in *play_hosts* %}{{
hostvars[host]['ansible_default_ipv4']['address'] }}{% if not loop.last
%},{% endif %}{% endfor %}"
This all works across both tasks (or both plays, if split it into two
plays) whereas using "groups['all']" fails on the second task
On Tuesday, 28 July 2015 17:28:48 UTC+1, KSS wrote:
>
> Looks like it's better to use set_fact here (well, that method works). It
> would still be good to understand why the above fails though
>
> On Tuesday, 28 July 2015 17:13:40 UTC+1, KSS wrote:
>>
>> Hi,
>>
>> I'm having a problem with a particular variable.
>>
>> I'm hoping figuring out the problem below will help me understand the
>> issue with a larger playbook.
>>
>> # ansible --version
>> ansible 1.9.2
>>
>>
>> A simple playbook (I need the list of ip addresses as it is passed to an
>> api in one request);
>>
>> ---
>>
>> - hosts: all
>> gather_facts: true
>>
>> vars:
>> ip: "{% for host in groups['all'] %}{{
>> hostvars[host]['ansible_default_ipv4']['address'] }}{% if not loop.last
>> %},{% endif %}{% endfor %}"
>>
>> tasks:
>>
>> - name: Debug
>> debug: msg="IPaddresses={{ ip }}"
>> delegate_to: localhost
>> run_once: true
>> tags: first-play
>>
>> - hosts: all
>> gather_facts: true
>>
>> vars:
>> ip: "{% for host in groups['all'] %}{{
>> hostvars[host]['ansible_default_ipv4']['address'] }}{% if not loop.last
>> %},{% endif %}{% endfor %}"
>>
>> tasks:
>>
>> - name: Debug 2
>> debug: msg="2nd list of IPaddresses={{ ip }}"
>> delegate_to: localhost
>> run_once: true
>> tags: second-play
>>
>> ------------- End of playbook -------------------
>>
>> When the above is run one task at a time (i.e using the tags) it works
>> fine;
>>
>> # *ansible-playbook -i 'host1,host2' ./test-ipvar.yml --tags first-play*
>>
>> PLAY [all]
>> ********************************************************************
>>
>>
>> GATHERING FACTS
>> ***************************************************************
>> ok: [host1]
>> ok: [host2]
>>
>>
>> TASK: [Debug]
>> *****************************************************************
>> ok: [host1 -> localhost] => {
>> "msg": "IPaddresses=10.0.0.1,10.0.0.2"
>> }
>>
>>
>> PLAY RECAP
>> ********************************************************************
>> host2 : ok=2 changed=0 unreachable=0 failed=0
>> host1 : ok=2 changed=0 unreachable=0 failed=0
>>
>>
>> *# ansible-playbook -i 'host1,host2' ./test-ipvar.yml --tags second-play*
>>
>> PLAY [all]
>> ********************************************************************
>>
>>
>> GATHERING FACTS
>> ***************************************************************
>> ok: [host1]
>> ok: [host2]
>>
>> Enter code here...
>>
>>
>> TASK: [Debug 2]
>> ***************************************************************
>> ok: [host1 -> localhost] => {
>> "msg": "2nd list of IPaddresses=10.0.0.1,10.0.0.2"
>> }
>>
>>
>> PLAY RECAP
>> ********************************************************************
>> host2 : ok=2 changed=0 unreachable=0 failed=0
>> host1 : ok=2 changed=0 unreachable=0 failed=0
>>
>>
>> However, running the playbook, we get an error for the second play
>> although that variable is clearly available before;
>>
>> # ansible-playbook -i 'host1,host2' ./test-ipvar.ymlEnter code here...
>>
>>
>>
>> PLAY [all]
>> ********************************************************************
>>
>>
>> GATHERING FACTS
>> ***************************************************************
>> ok: [host1]
>> ok: [host2]
>>
>>
>> TASK: [Debug]
>> *****************************************************************
>> ok: [host1 -> localhost] => {
>> "msg": "IPaddresses=10.0.0.1,10.0.0.2"
>> }
>>
>>
>> PLAY [all]
>> ********************************************************************
>>
>>
>> GATHERING FACTS
>> ***************************************************************
>> ok: [host1]
>> ok: [host2]
>>
>>
>> TASK: [Debug 2]
>> ***************************************************************
>> fatal: [host1 -> localhost] => One or more undefined variables: 'dict'
>> object has no attribute 'ansible_default_ipv4'
>>
>>
>> FATAL: all hosts have already failed -- aborting
>>
>>
>> PLAY RECAP
>> ********************************************************************
>> to retry, use: --limit @/root/test-ipvar.retry
>>
>>
>> host2 : ok=3 changed=0 unreachable=0 failed=1
>> host1 : ok=3 changed=0 unreachable=0 failed=1
>>
>>
>>
>>
>> Even putting both tasks in the same play results in only the first play
>> being successful.
>>
>> Does anyone have any ideas why it behaves this way?
>>
>
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