If a domain has been declared for the host, the upstream file will proxy
at a subdomain named for the stack it proxies to,
otherwise it will do the same for the path.
Created bind volume for caddy which takes the json fragments which will
later be injected through the caddy api to dynamically set their
individual reverse proxy addresses.
This is not entirely necessary if the injection should be done as a
variable instead, but makes it easier to change routes and especially
more complicated ones (I'm thinking of gitea with ssh access e.g.).
Added caddy as swarm container. Uses templated Caddyfile which can be
set up for testing purposes for now.
Depends on docker and docker-swarm, and will keep its stuff where
docker-swarm sets itself up.
Variable `docker_stack_files_dir` can be used if other stack deployments
need to copy over configuration files or other extra files. Defaults to
`/stacks` but can be set to anything and other roles should take care to
respect this and put their files relative to it.
Variable `docker_swarm_public_network_name` can be used to set the name
of the network to be created that faces outwards (ingress network) and
to which all stacks will be connecting.
Added variable docker_swarm_advertise_addr which can be set to the
advertise address swarm should use.
Mostly introduced for vagrant-based test setups for now, which contain
multiple IP addresses and fail otherwise.
