README update for docker wrapper

Author: timvaillancourt

README.rst

@@ -141,7 +141,7 @@ The backups are mongorestore compatible and stored in a directory per backup. Th
 Run as Docker Container (Experimental)
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-*Note: you need to use persistent volumes to store backups and/or config files long-term when using Docker. Data in Docker containers is destroyed when the container is deleted.*
+Note: you need to use persistent volumes to store backups and/or config files long-term when using Docker. Data in Docker containers is destroyed when the container is deleted. See `scripts/docker-persistent.sh <scripts/docker-persistent.sh>`__ and `scripts/docker-persistent.example.conf <scripts/docker-persistent.example.conf>`__ as an example/demo of how to implement persistence.
 
 **Via Docker Hub**
 

scripts/docker-persistent.example.conf

@@ -2,7 +2,7 @@
 # when using with scripts/docker-persistent.sh. Changes to
 # these flags will be ignored!
 production:
-  host: mongodb.example.com
+  host: 172.17.0.1
   port: 27017
   log_dir: /mongodb_consistent_backup/logs
   backup:

scripts/docker-persistent.sh

@@ -40,7 +40,7 @@ if [ "$ACTION" = "backup" ]; then
   fi
 elif [ "$ACTION" = "list" ]; then
   echo "# Listing backups in $BACKUP_DATA_IMAGE"
-  docker run -it --rm --volumes-from $BACKUP_DATA_IMAGE --entrypoint /bin/find $DOCKER_IMAGE $BACKUP_DIR/data -maxdepth 2 -name "[0-9]*_*"
+  docker run -it --rm --volumes-from $BACKUP_DATA_IMAGE --entrypoint /bin/find $DOCKER_IMAGE $BACKUP_DIR/data -maxdepth 2 -type d -name "[0-9]*_*"
 elif [ "$ACTION" = "get" ]; then
   DIR=$2
   [ -z $DIR ] && echo "Usage: $0 get [backup path]" && exit 1