define and assign elastic_agent_update port

setup/so-functions

@@ -964,6 +964,17 @@ detect_os() {
 
 }
 
+download_elastic_agent_artifacts() {
+   #TODO - ISO
+
+   logCmd "mkdir -p /nsm/elastic-fleet/artifacts/beats/elastic-agent/"
+
+   logCmd "curl --retry 5 --retry-delay 60 https://repo.securityonion.net/file/so-repo/prod/2.4/elasticagent/elastic-agent_SO-$SOVERSION.tar.gz --output /nsm/elastic-fleet/artifacts/elastic-agent_SO-$SOVERSION.tar.gz"
+
+   logCmd "tar -xf /nsm/elastic-fleet/artifacts/elastic-agent_SO-$SOVERSION.tar.gz -C /nsm/elastic-fleet/artifacts/beats/elastic-agent/"
+
+	}
+
 installer_progress_loop() {
 	local i=0
 	local msg="${1:-Performing background actions...}"