From 7833d9895964b7038f53a400a064911f9b4c5431 Mon Sep 17 00:00:00 2001
From: Fabian Steeg <steeg@hbz-nrw.de>
Date: Thu, 25 Apr 2024 17:27:45 +0200
Subject: [PATCH] Add script to delete non-aliased indices, keeping newest
 (RPB-137)

---
 deleteOldIndices.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 deleteOldIndices.sh

diff --git a/deleteOldIndices.sh b/deleteOldIndices.sh
new file mode 100644
index 0000000..5c0361d
--- /dev/null
+++ b/deleteOldIndices.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+set -euxo pipefail
+
+# Delete matching non-aliased indices, but keep the newest
+
+HOST="localhost"
+INDICES=("gnd-rppd*" "resources-rpb*")
+
+for INDEX in "${INDICES[@]}"
+do
+    curl -s -S -X GET "$HOST:9200/_cluster/state?filter_path=metadata.indices.$INDEX.aliases&pretty" |
+    jq -r '.metadata.indices | to_entries[] | select(.value.aliases | length == 0) | .key' | # no alias
+    sort | head -n -1 | # don't include the newest index
+    awk -v HOST="$HOST" '{print HOST":9200/"$1"?pretty"}' |
+    xargs -L 1 curl -s -S -v -X DELETE
+done