From 7a0870724b6b398acb46f320d0c23ea14f48f47b Mon Sep 17 00:00:00 2001
From: David Kyle <david.kyle@elastic.co>
Date: Tue, 23 Sep 2025 16:12:49 +0100
Subject: [PATCH] [ML] Add .reindexed-v7-ml-anomalies-* to anomaly results
 template index pattern (#135270)

Anomaly detection results indices created in a version 6 Elasticsearch
are reindexed and renamed with the ".reindexed-v7" prefix in version 7.
In 8.18 and 8.19, those version 7 indices are rolled over in preparation
for the version 9 upgrade. ".reindexed-v7-ml-anomalies-*" is
added to the AD results index template index patterns so when those
indices are rolled over the pick up the correct mappings
---
 docs/changelog/135270.yaml                                   | 5 +++++
 .../ml/anomalydetection/results_index_template.json          | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 docs/changelog/135270.yaml

diff --git a/docs/changelog/135270.yaml b/docs/changelog/135270.yaml
new file mode 100644
index 0000000000000..f3efc0b02df2c
--- /dev/null
+++ b/docs/changelog/135270.yaml
@@ -0,0 +1,5 @@
+pr: 135270
+summary: Add .reindexed-v7-ml-anomalies-* to anomaly results template index pattern
+area: Machine Learning
+type: bug
+issues: []
diff --git a/x-pack/plugin/core/template-resources/src/main/resources/ml/anomalydetection/results_index_template.json b/x-pack/plugin/core/template-resources/src/main/resources/ml/anomalydetection/results_index_template.json
index 7914cc9bd6a8a..c038abb37728b 100644
--- a/x-pack/plugin/core/template-resources/src/main/resources/ml/anomalydetection/results_index_template.json
+++ b/x-pack/plugin/core/template-resources/src/main/resources/ml/anomalydetection/results_index_template.json
@@ -2,7 +2,7 @@
   "priority": 2147483647,
   "version" : ${xpack.ml.version.id},
   "index_patterns" : [
-    ".ml-anomalies-*"
+    ".ml-anomalies-*", ".reindexed-v7-ml-anomalies-*"
   ],
   "template" : {
     "settings" : {