Thanks for your work on this @rpk
Once I update to Ansible 2.1.1.0, I can reproduce the problem on vagrant 1.8.5 (running on OS X).
If I roll Ansible back to 2.0.2.0 the problem stops.
In addition, on Ansible 2.1.1.0, the debug task msg seems to not print when run as part of the handler, but it does print if I put the reload nginx include in a regular playbook task file:
- include: "{{ playbook_dir }}/roles/common/tasks/reload_nginx.yml"
I think the success filter had some modifications in Ansible 2.1, which may be responsible for what we’re seeing here. I’ll look into it a bit.
I also tried to reproduce on a staging/production remote with DigitalOcean. If I use Ansible 2.1.1.0 I get other yml errors, which disappear if I roll back to 2.0.2.0.
Could you try rolling your Ansible version back to 2.0.2.0 and see if that solves it for now? I guess that’s the only version the Trellis README reports as supported. I thought only 2.1.0.0 was problematic, but I actually didn’t know anything about 2.1.1.0 till testing it now.