[Heartbeat] Only support elasticsearch output for synthetics integration

changelog/fragments/1665780486-heartbeat-es-output-only.yaml

@@ -0,0 +1,31 @@
+# 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: heartbeat-es-output-only
+
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+description: only support elasticsearch as an output for the beta synthetics integration
+
+# Affected component; a word indicating the component this changeset affects.
+component: synthetics-integration
+
+# PR number; 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: 1491
+
+# Issue number; 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: 1234

internal/pkg/agent/program/program_test.go

@@ -393,7 +393,7 @@ func TestConfiguration(t *testing.T) {
 		},
 		"logstash_config": {
 			programs: map[string][]string{
-				"default":       {"filebeat", "fleet-server", "heartbeat", "metricbeat", "endpoint", "packetbeat"},
+				"default":       {"filebeat", "fleet-server", "metricbeat", "endpoint", "packetbeat"},
 				"elasticsearch": {"filebeat"},
 			},
 		},

internal/spec/heartbeat.yml

@@ -20,5 +20,4 @@ rules:
         - inputs
         - output
         - keystore
-when: length(${inputs}) > 0 and hasKey(${output}, 'elasticsearch', 'redis',
-  'kafka', 'logstash')
+when: length(${inputs}) > 0 and hasKey(${output}, 'elasticsearch') # Heartbeat only supports ES