OK....getting closer. I had to upgrade Jinja2 to version 2.8-dev in order
to get the equalto test. Now the debug statement executes without error;
however, this doesn't return the information I need. The statement below
gives me all resource_tags if the tier key equals "elb". What I really
need is the subnet id value if the resource_tag has the tier key equal to
"elb". I feel like another level of nesting is required. Any ideas on how
to get the subnet id? Thank you James for all your help so far!
"vpc": {
"changed": false,
"invocation": {
"module_args": "",
"module_name": "ec2_vpc"
},
"subnets": [
{
"az": "us-east-1c",
"cidr": "10.0.0.x/26",
"id": "subnet-123456789", -----> I need this value
"resource_tags": {
"Name": "elb1",
"tier": "elb"
}
},
{
"az": "us-east-1a",
"cidr": "10.0.0.x/26",
"id": "subnet-abcdefgh", ----> and this
"resource_tags": {
"Name": "elb2",
"tier": "elb"
}
}
On Friday, September 5, 2014 4:07:04 PM UTC-4, James Cammarata wrote:
>
> You could use the selectattr() filter, however it looks like the 'equalto'
> test is new (it doesn't work in my version of jinja2, which is 2.7.x). But
> it would looks something like this:
>
> - debug: msg="{{vpc.subnets | map(attribute='resource_tags') |
> selectattr('tier', 'equalto', 'elb') | list}}"
>
>
>
> On Fri, Sep 5, 2014 at 9:45 AM, itarchmerc <[email protected]
> <javascript:>> wrote:
>
>> I got one step further. Using this debug statement, I was able to get
>> the list of resource_tags:
>>
>> debug: msg="{{vpc.subnets | map(attribute='resource_tags') |
>> map(attribute='tier') | list}}"
>>
>> I'm not sure if this is the right way to go about getting this
>> information, so please let me know if there is a better way.
>>
>> Unfortunately, I'm still having difficulty having the task only pull the
>> subnet id for the subnets tagged as tier=elb. Can I use something after
>> the pipe instead of list to limit the results, or do I need to use
>> with_items, with_dict? Thanks.
>>
>> On Friday, September 5, 2014 8:32:02 AM UTC-4, itarchmerc wrote:
>>>
>>> That worked perfectly to get the list of subnets. Thank you!
>>>
>>> The only issue I have now is limiting the returned values. The syntax
>>> below is returning all 6 subnets in my vpc, but I only want the 2 subnets
>>> that I gave a resource tag of tier=elb. I'm trying to use the when clause
>>> with the ec2_elb_lb module, but I can't get the syntax right there. I
>>> tried:
>>>
>>> when: {{ vpc.subnets | map(attribute='tier') | list }} == 'elb'
>>>
>>> This generates a syntax error each time. What should the format be in a
>>> when clause and/or is this the right way to approach limiting the results,
>>> or should I be using with_items or with_dict? Thanks for the help!
>>>
>>> On Thursday, September 4, 2014 11:14:53 PM UTC-4, James Cammarata wrote:
>>>>
>>>> Hi. From the look of the above, you're using the "complex args"
>>>> structure to pass the params to the module. In this case, the list should
>>>> not be a comma-separated list but should instead just be the array of IDs.
>>>> For example:
>>>>
>>>> subnets: "{{vpc.subnets | map(attribute='id') | list}}"
>>>>
>>>> The syntax you're using above would work if you were instead using
>>>> key=value parameters, ie: subnets="{{ vpc.subnets | join(','
>>>> attribute='id') }}"
>>>>
>>>>
>>>> On Thu, Sep 4, 2014 at 2:41 PM, itarchmerc <[email protected]>
>>>> wrote:
>>>>
>>>>> I have a playbook that creates a VPC with multiple subnets which works
>>>>> fine. I then have a playbook that tries to create an ELB and I need to
>>>>> set
>>>>> the subnets to 2 of the subnets returned from the vpc creation. There
>>>>> are
>>>>> 6 total subnets within the VPC, but two of them have resource_tags set to
>>>>> tier:elb. I only want the 2 subnets with those tags.
>>>>>
>>>>> I saw a post <https://github.com/ansible/ansible/pull/7051> that said
>>>>> the following would work, but I get an invalid subnet ID error. (look
>>>>> for
>>>>> the comments from @coop)
>>>>>
>>>>> subnets: "{{ vpc.subnets | join(',' attribute='id') }}"
>>>>>
>>>>> My playbook is almost exactly the same as @coop in the post above, but
>>>>> I have 6 subnets instead of 1. I feel like I should be able to use
>>>>> something like the above with a when clause to only get subnets tagged as
>>>>> elb. Any help is appreciated.
>>>>>
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