On Monday, October 24, 2016 at 12:22:53 PM UTC-7, Cody John wrote:
>
> I'm working on modeling our datacenter top-of-rack switches in Ansible,
> and have run into a potential problem with my approach. The basic idea is
> to use a hierarchal group structure that starts with general purpose (tor),
> and then get more specific for each deployment based on application that
> rack is supporting:
>
> [tors]
>
> [app1switches]
> app1switch1
> app1switch2
>
> [app2switches]
> app2switch1
> app2switch2
>
> [tors:children]
> app1switches
> app2switches
>
>
> I want to abstract all my VLAN configuration into group-defined variables.
> In this example, let's say that there is at least one VLAN that is
> standard across all TORs, and then each application has their own unique
> set of VLANs that also need to be applied. My idea was to create group
> variable files such as:
>
> #
> # group_vars/tors
> #
> ---
> vlans:
> - name: GLOBAL-VLAN
> id: 100
> net: "{{ globalvlan_prefix }}"
>
>
>
> #
> # group_vars/app1switches
> #
> ---
> vlans:
> - name: SPECIAL-APP1-VLAN
> id: 110
> net: "{{ app1_prefix }}"
>
>
> #
> # group_vars/app2switches
> #
> ---
> vlans:
> - name: SPECIAL-APP2-VLAN
> id: 120
> net: "{{ app2_prefix }}"
>
>
> Ultimately the goal is for any device that is a member of the app1switches
> group to get both SPECIAL-APP1-VLAN + GLOBAL-VLAN, while app2switches would
> get SPECIAL-APP2-VLAN + GLOBAL-VLAN. The problem is, the more specific
> group variable is over-riding the more generic so I am only applying the
> special app vlans.
>
> Is there a way to define these list variables in an cumulative way, such
> that the end-result of the 'vlans' variable is a 2 item list for each
> switch type?
>
> --
> Cody
>
>
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