Retain a maximum 3 backups by default

backup-cores.sh

@@ -4,17 +4,18 @@ if [[ ! "$1" ]]; then
     echo """
 Usage: $0 <solr root>
 
-Create backups for all cores in a solr instance.
+Create backups for all cores in a solr instance. Currently hard-coded to keep 3 backups.
 """
     exit 1
 fi
 
-SOLR_ROOT="${1?:Usage: $0 <solr root>}"
+NUMBER_TO_KEEP="3"
+SOLR_ROOT="$1"
 
 command -v jq >/dev/null 2>&1 || { echo >&2 "jq is required but not installed. Aborting."; exit 1; }
 command -v curl >/dev/null 2>&1 || { echo >&2 "curl is required but not installed. Aborting."; exit 1; }
 
 for core in $(curl -s $SOLR_ROOT/solr/admin/cores?indexInfo=false | jq -r '.status' | jq -r 'keys[]'); do
     echo "Backing up $core"
-    curl "${SOLR_ROOT}/solr/${core}/replication?command=backup"
+    curl "${SOLR_ROOT}/solr/${core}/replication?command=backup&numberToKeep=${NUMBER_TO_KEEP}"
 done