Use central config for env vars

commands

@@ -2,16 +2,7 @@
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 source "$(dirname "$0")/../common/functions"
 source "$(dirname "$0")/functions"
-
-MYSQL_IMAGE=${MYSQL_IMAGE:="mysql"}
-MYSQL_IMAGE_VERSION=${MYSQL_IMAGE_VERSION:="5.7"}
-MYSQL_ROOT=/var/lib/dokku/services/mysql
-
-PLUGIN_COMMAND_PREFIX="mysql"
-PLUGIN_DATA_ROOT=$MYSQL_ROOT
-PLUGIN_SERVICE="MySQL"
-PLUGIN_IMAGE=$MYSQL_IMAGE
-PLUGIN_IMAGE_VERSION=$MYSQL_IMAGE_VERSION
+source "$(dirname "$0")/config"
 
 if [[ ! -d $PLUGIN_DATA_ROOT ]]; then
   dokku_log_fail "$PLUGIN_SERVICE: Please run: sudo dokku plugins-install"