Allow passing SSO auth configuration as a secret

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

docker/configure-app.sh

@@ -25,6 +25,12 @@ then
     ln -sf /run/secrets/msmtprc /etc/msmtprc
 fi
 
+# Set up SSO auth if a configuration is supplied
+if [ -f /run/secrets/ssoauth ]
+then
+    ln -sf /run/secrets/ssoauth /usr/share/obs/api/config/auth.yml
+fi
+
 if [ -n "$OBS_SESSION_LIFETIME_DAYS" ]
 then
     sed -i 's/:expire_after => .*$/:expire_after => '"$OBS_SESSION_LIFETIME_DAYS"'.day/' \