diff --git a/elk/README.md b/elk/README.md
index 5de564f..6ea0608 100644
--- a/elk/README.md
+++ b/elk/README.md
@@ -4,3 +4,34 @@ ELK
 - Elasticsearch
 - Logstash
 - Kibana
+
+## Delete indices older than 7 days
+
+```yaml
+---
+actions:
+  1:
+    action: delete_indices
+    description: >-
+      Delete indices older than 7 days (based on index name), for logstash-
+      prefixed indices. Ignore the error if the filter does not result in an
+      actionable list of indices (ignore_empty_list) and exit cleanly.
+    options:
+      ignore_empty_list: True
+      disable_action: False
+    filters:
+    - filtertype: pattern
+      kind: prefix
+      value: logstash-
+    - filtertype: age
+      source: name
+      direction: older
+      timestring: '%Y.%m.%d'
+      unit: days
+      unit_count: 7
+```
+
+```bash
+$ pip install elasticsearch-curator
+$ curator delete-indices.yml
+```
diff --git a/elk/delete-indices.yml b/elk/delete-indices.yml
new file mode 100644
index 0000000..8439fb9
--- /dev/null
+++ b/elk/delete-indices.yml
@@ -0,0 +1,21 @@
+---
+actions:
+  1:
+    action: delete_indices
+    description: >-
+      Delete indices older than 7 days (based on index name), for logstash-
+      prefixed indices. Ignore the error if the filter does not result in an
+      actionable list of indices (ignore_empty_list) and exit cleanly.
+    options:
+      ignore_empty_list: True
+      disable_action: False
+    filters:
+    - filtertype: pattern
+      kind: prefix
+      value: logstash-
+    - filtertype: age
+      source: name
+      direction: older
+      timestring: '%Y.%m.%d'
+      unit: days
+      unit_count: 7