Add changelog.

changelog/fragments/1696935756-add-default-host.yaml

@@ -0,0 +1,32 @@
+# Kind can be one of:
+# - breaking-change: a change to previously-documented behavior
+# - deprecation: functionality that is being removed in a later release
+# - bug-fix: fixes a problem in a previous version
+# - enhancement: extends functionality but does not break or fix existing behavior
+# - feature: new functionality
+# - known-issue: problems that we are aware of in a given version
+# - security: impacts on the security of a product or a user’s deployment.
+# - upgrade: important information for someone upgrading from a prior version
+# - other: does not fit into any of the other categories
+kind: feature
+
+# Change summary; a 80ish characters long description of the change.
+summary: Hints Autodiscovery for Elastic Agent - Add default host for each container in a pod
+
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+# NOTE: This field will be rendered only for breaking-change and known-issue kinds at the moment.
+#description:
+
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component: elastic-agent
+
+# PR URL; optional; the PR number that added the changeset.
+# If not present is automatically filled by the tooling finding the PR where this changelog fragment has been added.
+# NOTE: the tooling supports backports, so it's able to fill the original PR number instead of the backport PR number.
+# Please provide it if you are adding a fragment for a different PR.
+pr: https://github.com/elastic/elastic-agent/pull/3575
+
+# Issue URL; optional; the GitHub issue related to this changeset (either closes or is part of).
+# If not present is automatically filled by the tooling with the issue linked to the PR number.
+issue: https://github.com/elastic/elastic-agent/issues/1453

internal/pkg/composable/providers/kubernetes/hints.go

@@ -259,15 +259,15 @@ func GetHintsMapping(k8sMapping map[string]interface{}, logger *logp.Logger, pre
 		composableMapping: mapstr.M{},
 		processors:        []mapstr.M{},
 	}
+	cName := ""
+	cHost := ""
 
 	ann, ok := k8sMapping["annotations"]
 	if !ok {
 		return hintData
 	}
 	annotations, _ := ann.(mapstr.M)
 
-	cName := ""
-	cHost := ""
 	// Get the name of the container from the metadata. We need it to extract the hints that affect it directly.
 	// E.g. co.elastic.hints.<container-name>/host: "..."
 	if con, ok := k8sMapping["container"]; ok {