Add attempt at logs command

abra

@@ -13,6 +13,7 @@ sub_help(){
 	echo "    service_run SERVICE [CMD]	run a command in the specified service's container"
 	echo "    secret_generate SECRET VERSION 	generate a secret, store it in pass & as a Docker secret"
 	echo "    deploy [COMPOSE_FILE] 		let 'em rip"
+	echo "    logs SERVICE 		tail logs from a deployed service"
 	echo ""
 		echo "Make sure \$STACK_NAME is set (probably using direnv)"
 }
@@ -65,6 +66,16 @@ sub_deploy (){
 	docker stack deploy -c "$COMPOSE" "$STACK_NAME"
 }
 
+sub_logs (){
+	SERVICE=$1
+
+	docker service logs "${STACK_NAME}_${SERVICE}" \
+		--follow \
+		--no-trunc \
+		--details \
+		--timestamps
+}
+
 subcommand=$1
 case $subcommand in
 	"" | "-h" | "--help")