How can load an inventory file via a task within a playbook

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1

I keep my inventory files for each environment in GIT repositories. I am working on some sort of a helper service which i am writing in Ansible and this should perform some (housekeeping) tasks on the specified servers, which i wish to specify using existing inventory files. I want to make the GIT repo as a parameter for this script and then the script will have its target inventory file. I am not sure how to proceed from here.

How can i load this inventory file within a task ? After loading, i can either invoke next play or refresh the inventory with meta. Using add_host doesn’t seem to be an option as there are elaborate inventory configurations which i want to reuse as it is rather than writing more logic to load it.I don’t see any lookup/parser either. The only option remains for me is to keep the second phase logic in different playbook and after fetching the inventory just shoot a shell command executing this playbook with the inventory, but this method won’t give me the logs like a regular playbook execution.

2

Can't you just pull the git repo before you run the inventory?

3

I want to make it useful for others, thus trying to cut on an additional GIT clone step. I will create a Jenkins job for this which would then just need a parameter (with which i can figure out GIT repo).

4

Why wouldn't you have a single repo in that case?
You can have multiple inventory folders under the playbooks e.g.

.├── roles < - common roles
│ ├── bar
│ └── foo
├── site.yml <- common playbooks
├── dev <- dev inventory
│ ├── group_vars
│ │ └── all
│ └── hosts
├── prod <- production inventory
│ ├── group_vars
│ │ └── all
│ └── hosts

└── staging <- staging inventory
    ├── group_vars
    │ └── all
    └── hosts

Then your jenkins play just checks out the repo and runs

ansible-playbook -i dev/ site.yml

(i.e. just switch the inventory to the right one).

5

Hi,

This has to do how we are managing inventory as per project requirements. We have some quite elaborate structure and it is now tried and tested. What i am doing now is automating routines stuff with Ansible and this cannot result in changing the existing structure. I gotta find ways with the current setup fixed.

And anyways, i would like to get a general answer if that would be possible, not just to solve my current problem but also to know that we have this ‘possibility’ in Ansible so that i can go on think of more automation ideas.