Iterate Hash in template.

[David Blackburn]

I am trying to iterate over a hash of hash of a list, but I do not seem to be having much luck, I have setup a group variable which I select using a variable, which appears to be working correctly as per the debug, but once in the template I don't seem to be able to iterate over it no matter what permutations I use.

Any advice on this would be great.

Thanks

Dave

cat group_vars/all

boston:

    nameservers: ['10.0.0.1','10.0.0.2']

    ntp: ['pool1.ntp.org','pool2.ntp.org']

losangeles:

    nameservers: ['10.0.1.1','10.0.1.2']

    ntp: ['pool1.ntp.org','pool2.ntp.org']

cat main.yml

---

-   name: test template

    hosts: all

    vars:

        SITE: 'boston'

    tasks:

    - debug: var={{SITE}}

    - name: Template Test

      template: src=ntp.conf.j2 dest=/tmp/ntp.conf

cat ntp.conf.j2

driftfile /var/lib/ntp/drift

restrict default kod nomodify notrap nopeer noquery

restrict -6 default kod nomodify notrap nopeer noquery

restrict 127.0.0.1

restrict -6 ::1

{% for key in SITE[ntp][0] %}

{{key}}

{% endfor %}

includefile /etc/ntp/crypto/pw

keys /etc/ntp/keys

ansible-playbook -i hosts main.yml   --connection=local

PLAY [test template] **********************************************************

GATHERING FACTS ***************************************************************

ok: [localhost]

TASK: [debug var={{SITE}}] ****************************************************

ok: [localhost] => {

    "var": {

        "boston": {

            "nameservers": [

                "10.0.0.1",

                "10.0.0.2"

            ],

            "ntp": [

                "pool1.ntp.org",

                "pool2.ntp.org"

            ]

        }

    }

}

TASK: [Template Test] *********************************************************

fatal: [localhost] => {'msg': 'AnsibleUndefinedVariable: One or more undefined variables: unicode object has no element Undefined', 'failed': True}

fatal: [localhost] => {'msg': 'AnsibleUndefinedVariable: One or more undefined variables: unicode object has no element Undefined', 'failed': True}

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************

           to retry, use: --limit @/Users/dave/main.retry

localhost                  : ok=2    changed=0    unreachable=1    failed=0

[David Blackburn]

I managed to achieve this by using "hostvar" in my template is this the correct way to be referencing hashes in templates?

Thanks

Dave

{% for servers in hostvars[inventory_hostname][SITE]['ntp'] %}

server {{servers}}

{% endfor %}

[Brian Coca]

its correct way to reference most vars


--
Brian Coca

[David Blackburn]

Thanks for clarifying this Brian.

Dave