Ansible looping over main playbook - ansible

Question

I created a "main" playbook that create and deploy a complex application let's say an entire house.
The "main" looks like this :
- hosts: host1
roles:
- { role: role1 }
- hosts: host2
roles:
- { role: role2 }
- hosts: localhost
roles:
- { role: role3 }
- { role: role4 }
- { role: role5 }
- { role: role6 }
I would like now to be able to deploy multiple houses using a CSV as input, containing my variables.
I was expecting to just import that "main" playbook, and loop over my CSV so that I can create multiple houses.
Based on the documentation I'm not able to loop using import_playbook, so I'm a stuck on how I could use this "main" for multiple creations in series.
Has anybody been in that situation or has an idea on how I could resolve this ?

Answer 1

You can use the csvfile lookup to read data from CSV files.
Example CSV file roles.csv:
host1,role1
host2,role2
localhost,role3 role4 role5 role6
Create mock-up roles:
for i in {1,2,3,4,5,6}; do
mkdir -p roles/role$i/tasks &&
echo "- debug: msg=\"role$i\"" > roles/role$i/tasks/main.yaml
done
And in the playbook you use the include_role syntax instead of roles, because include_role can be used in a loop. By this you can loop over the array read from the CSV file.
---
- hosts: localhost
connection: local
tasks:
- name: Use role in loop
include_role:
name: '{{ roleinputvar }}'
loop: "{{ lookup('csvfile', inventory_hostname + ' file=roles.csv delimiter=,').split(' ') }}"
loop_control:
loop_var: roleinputvar
connection: local is just for this example.
When run the roles 3 to 6 are executed:
$ ansible-playbook roles.yaml
[WARNING]: provided hosts list is empty, only localhost is available. Note that the
implicit localhost does not match 'all'
PLAY [localhost] **********************************************************************
TASK [Gathering Facts] ****************************************************************
ok: [localhost]
TASK [Use role in loop] ***************************************************************
TASK [role3 : debug] ******************************************************************
ok: [localhost] => {
"msg": "role3"
}
TASK [role4 : debug] ******************************************************************
ok: [localhost] => {
"msg": "role4"
}
TASK [role5 : debug] ******************************************************************
ok: [localhost] => {
"msg": "role5"
}
TASK [role6 : debug] ******************************************************************
ok: [localhost] => {
"msg": "role6"
}
PLAY RECAP ****************************************************************************
localhost : ok=5 changed=0 unreachable=0 failed=0