One of the changes with ansible 2.7 is how you are supposed to pass a list of packages to a package module. instead of passing a list via with_items (which then get’s squashed into one call anyway), you just pass the whole list.
Apt as an example:
ansible <= 2.6
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- name: Install packages
apt: pkg: "{{ item }}"
state: present
with_items: "{{ packages }"
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ansible <= 2.7
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- name: Install packages
apt:
pkg: "{{ packages }}"
state: present
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What the documentation doesn’t touch is how to pass multiple lists.
The error output suggests using ['{{ list1 }}', '{{ list2 }}'], but ansible throws a fit if you do that. Turns out you can also concatenate lists with the + sign. So the solution looks like this:
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- name: Install packages
apt:
pkg: "{{ packages + more_packages }}"
state: present
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