Moved the ability to switch off caddy's api access to variables not
intended to be overwritten. It still can, but it is much more difficult.
Since every docker deployment relies on caddy's api to be accessible it
seems weird to present an easily reachable option to turn it off
globally.
Give more time to docker to correctly bring up caddy in the swarm.
Extended delay to retry to 10 seconds and gave it more retries as well,
so that roughly a minute will be gone before the play gives up.
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.
