Hello All -
I'm writing a local plugin where I'd like to be able to pass in the name of
an Ansible host group and find out particular details about the relevant
hosts - basically, I need to access groups and hostvars from a Python
plugin.
Is this possible? I've done lots of Ansible but very limited plugin
development for it, so apologies if this is a foolish question. Please
point me in the right direction if there's some documentation I've missed!
Background:
My actual aim is to create Amazon ELB loadbalancer target rules which point
at the hosts in a particular group. To do this, I need the EC2 instance
IDs of those hosts.
I can get the instance info for all my hosts using ec2_instance_info, and I
can match them up based on IP addresses with the information in `groups`
and `hostvars`, but this kind of thing is very convoluted and unreadable in
Jinja tags and filters. It would be easy and readable in Python.
I know how to do the EC2 side. I just need to know how to do the inventory
side, so I can get rid of things like:
groups[ groupname ] | map('extract', hostvars, ['ansible_default_ipv4',
'address']) | list)
Suggestions of alternative approaches also welcome!
Many thanks!
Quentin
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