So the final working best practice solution is:
EDIT: (I commented for this example irrelevant stuff out, but left it in to demonstrate the greater look of the docker-compos.yml file)
33 environment:
34 # - TZ=Pacific/Auckland
35 # SERVER_NAME: wiki.village
36 # CADDY_GLOBAL_OPTIONS: local_certs
37 CADDY_SERVER_EXTRA_DIRECTIVES: |
38 @forbidden {
39 path /data/* /conf/* /bin/* /inc/* /install.php
40 }
41 error @forbidden 403
Note the SOME_VAR: space | (pipe) newline
Indent once, some instructions
more instructions
and even more instructions, syntax
NEXT_VAR: