collect docker logs using fluent

terraform/elasticsearch/main.tf

@@ -38,3 +38,25 @@ resource "elasticstack_elasticsearch_index_template" "metrics_template" {
     })
   }
 }
+
+resource "elasticstack_elasticsearch_index_lifecycle" "logs_ilm" {
+  name = "logs_ilm"
+
+  delete {
+    min_age = "2d"
+    delete {}
+  }
+}
+
+resource "elasticstack_elasticsearch_index_template" "logs_template" {
+  name = "logs_template"
+
+  priority = 42
+  index_patterns = ["fluentd.docker.**"]
+
+  template {
+    settings = jsonencode({
+      "index.lifecycle.name" = elasticstack_elasticsearch_index_lifecycle.logs_ilm.name
+    })
+  }
+}