Currently [in docker it is possible to do configuration through
environment variables](https://col.la/dockercodeconfigviaenv), which
works using the start-collabora-online.sh start-collabora-online.pl
scripts. This commit lets COOLWSD listen to the same environment
variables directly
Change-Id: I75762ad620132037523fa82167a3ff17075c7027
Signed-off-by: Skyler Grey <skyler.grey@collabora.com>
* simplified the tooling a bit: use coolconfig for creating
RSA key pairs for WOPI Proof headers.
* got rid of a dependency: ssh-keygen, towards leaner docker images
Signed-off-by: Andras Timar <andras.timar@collabora.com>
Change-Id: Iaf468b5c8585d45027f512bb0a287ab77afb1ea9