Added 'WEBPASSWORD_FILE' environment variable to enable support for Docker Secrets.

If 'WEBPASSWORD' is set, 'WEBPASSWORD_FILE' is ignored. If 'WEBPASSWORD' is empty, and 'WEBPASSWORD_FILE' is set to a valid readable file, then 'WEBPASSWORD' will be set to the contents of 'WEBPASSWORD_FILE'.

Signed-off-by: Daniel <daniel@developerdan.com>

bash_functions.sh

@@ -290,6 +290,14 @@ setup_web_port() {
 
 }
 
+load_web_password_secret() {
+   # If WEBPASSWORD is not set at all, attempt to read password from WEBPASSWORD_FILE,
+   # allowing secrets to be passed via docker secrets
+   if [ -z "${WEBPASSWORD+x}" ] && [ -n "${WEBPASSWORD_FILE}" ] && [ -r "${WEBPASSWORD_FILE}" ]; then
+     WEBPASSWORD=$(<"${WEBPASSWORD_FILE}")
+   fi;
+}
+
 generate_password() {
     if [ -z "${WEBPASSWORD+x}" ] ; then
         # Not set at all, give the user a random pass

start.sh

@@ -42,6 +42,7 @@ docker_checks
 #fi
 
 fix_capabilities
+load_web_password_secret
 generate_password
 validate_env || exit 1
 prepare_configs