From 39d09471026443258f604d54106509d5c9226c83 Mon Sep 17 00:00:00 2001
From: reyesj2 <94730068+reyesj2@users.noreply.github.com>
Date: Wed, 29 Apr 2026 17:38:40 -0500
Subject: [PATCH] update default elastic agent logging level to warning

---
 .../tools/sbin/so-elastic-fleet-common        |  2 +-
 salt/manager/tools/sbin/soup                  | 51 +++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/salt/elasticfleet/tools/sbin/so-elastic-fleet-common b/salt/elasticfleet/tools/sbin/so-elastic-fleet-common
index 92532082a..91fa787f2 100644
--- a/salt/elasticfleet/tools/sbin/so-elastic-fleet-common
+++ b/salt/elasticfleet/tools/sbin/so-elastic-fleet-common
@@ -240,7 +240,7 @@ elastic_fleet_policy_create() {
         --arg DESC "$DESC" \
         --arg TIMEOUT $TIMEOUT \
         --arg FLEETSERVER "$FLEETSERVER" \
-            '{"name": $NAME,"id":$NAME,"description":$DESC,"namespace":"default","monitoring_enabled":["logs"],"inactivity_timeout":$TIMEOUT,"has_fleet_server":$FLEETSERVER}'
+            '{"name": $NAME,"id":$NAME,"description":$DESC,"namespace":"default","monitoring_enabled":["logs"],"inactivity_timeout":$TIMEOUT,"has_fleet_server":$FLEETSERVER,"advanced_settings":{"agent_logging_level": "warning"}}'
         )
     # Create Fleet Policy
     if ! fleet_api "agent_policies" -XPOST -H 'kbn-xsrf: true' -H 'Content-Type: application/json' -d "$JSON_STRING"; then
diff --git a/salt/manager/tools/sbin/soup b/salt/manager/tools/sbin/soup
index a838e3275..44eda49bb 100755
--- a/salt/manager/tools/sbin/soup
+++ b/salt/manager/tools/sbin/soup
@@ -485,6 +485,54 @@ elasticsearch_backup_index_templates() {
   tar -czf /nsm/backup/3.0.0_elasticsearch_index_templates.tar.gz -C /opt/so/conf/elasticsearch/templates/index/ .
 }
 
+elasticfleet_set_agent_logging_level_warn() {
+    . /usr/sbin/so-elastic-fleet-common
+
+    local current_agent_policies
+    if ! current_agent_policies=$(fleet_api "agent_policies?perPage=1000"); then
+        echo "Warning: unable to retrieve Fleet agent policies"
+        return 0
+    fi
+
+    # Only updating policies that are within Security Onion defaults and do not already have any user configured advanced_settings.
+    local policies_to_update
+    policies_to_update=$(jq -c '
+        .items[]
+        | select(has("advanced_settings") | not)
+        | select(
+            .id == "so-grid-nodes_general"
+            or .id == "so-grid-nodes_heavy"
+            or .id == "endpoints-initial"
+            or (.id | startswith("FleetServer_"))
+          )
+    ' <<< "$current_agent_policies")
+
+    if [[ -z "$policies_to_update" ]]; then
+        return 0
+    fi
+
+    while IFS= read -r policy; do
+        [[ -z "$policy" ]] && continue
+
+        local policy_id policy_name policy_namespace
+        policy_id=$(jq -r '.id' <<< "$policy")
+        policy_name=$(jq -r '.name' <<< "$policy")
+        policy_namespace=$(jq -r '.namespace' <<< "$policy")
+
+        local update_logging
+        update_logging=$(jq -n \
+            --arg name "$policy_name" \
+            --arg namespace "$policy_namespace" \
+            '{name: $name, namespace: $namespace, advanced_settings: {agent_logging_level: "warning"}}'
+        )
+
+        echo "Setting elastic agent_logging_level to warning on policy '$policy_name' ($policy_id)."
+        if ! fleet_api "agent_policies/$policy_id" -XPUT -H 'kbn-xsrf: true' -H 'Content-Type: application/json' -d "$update_logging" >/dev/null; then
+            echo "  warning: failed to update agent policy '$policy_name' ($policy_id)" >&2
+        fi
+    done <<< "$policies_to_update"
+}
+
 ensure_postgres_local_pillar() {
   # Postgres was added as a service after 3.0.0, so the new pillar/top.sls
   # references postgres.soc_postgres / postgres.adv_postgres unconditionally.
@@ -553,6 +601,9 @@ post_to_3.1.0() {
   # file_roots of its own and --local would fail with "No matching sls found".
   salt-call state.apply postgres.telegraf_users queue=True || true
 
+  # Update default agent policies to use logging level warn.
+  elasticfleet_set_agent_logging_level_warn || true
+
   POSTVERSION=3.1.0
 }