using set_fact that way requires you to check if those vars are
defined, i believe this is a better approach:
vars:
is_master: "{{ inventory_hostname == master_hostname }}"
is_slave: "{{ inventory_hostname == master_hostname }}"
then you can just use them direcly in subsequent conditionals:
when: is_master|bool
There are other approaches as well, i.e using group_by, but I think
the one above should work best for you.
----------
Brian Coca
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