Before, if a site's certificate was not found, the site was served
over http rather than https. Failing open like this is problematic
for sites where security is important. Presumably the user set
`HTTPS_METHOD` to a non-`noredirect` value (or left it unset) for a
good reason; we should honor it even if it means serving error
messages.
WARNING: This change breaks compatibility. Any vhost where all of the
following are true will fail after this change:
* `HTTPS_METHOD` is either unset or set to a value other than
`nohttps`.
* The vhost does not have its own certificate (`default.crt` doesn't
count).
* Clients expect to be able to access the vhost by using plain http
to nginx-proxy.
To get the previous behavior, set `HTTPS_METHOD` to `nohttps` for the
vhost.
This features allows the custom location blocks to be added to the
virtual path based routing. The custom config can be specified for each
container individually.
This commit removes the automatic path stripping and replaces it with a
user configurable environment variable. This can be set individually for
each container.
