The key used in the vhosts.j2 template is extra_parameters.
@ -31,7 +31,7 @@ nginx_vhosts: []
# # Properties that are only added if defined:
# error_page: "",
# access_log: "",
# extra_config: "" # Can be used to add extra config blocks (multiline).
# extra_parameters: "" # Can be used to add extra config blocks (multiline).
# }
nginx_upstreams: []