From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 10 Jul 2026 14:03:22 +0000 (+0000)
Subject: graphs: knot-resolver: Conditionally render graphs
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8756acf00988a7768fda526af9ce185997093857;p=telemetry.git

graphs: knot-resolver: Conditionally render graphs

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/daemon/graphs/knot-resolver.c b/src/daemon/graphs/knot-resolver.c
index 87a40c2..7c71066 100644
--- a/src/daemon/graphs/knot-resolver.c
+++ b/src/daemon/graphs/knot-resolver.c
@@ -23,6 +23,11 @@
 #include "graph.h"
 #include "knot-resolver.h"
 
+static int knot_resolver_can_render(td_ctx* ctx, td_graph* graph,
+		const td_graph_render_options* options, const char* object) {
+	return td_graph_requires_source(graph, "knot-resolver", NULL);
+}
+
 static int knot_resolver_queries_title(td_ctx* ctx, td_graph* graph,
 		const char* object, char* title, size_t length) {
 	return __td_string_set(title, length, _("DNS Queries"));
@@ -48,10 +53,11 @@ static int knot_resolver_queries_render(td_ctx* ctx, td_graph* graph,
 }
 
 const td_graph_impl knot_resolver_queries_graph = {
-	.name    = "KnotResolverQueries",
-	.render  = knot_resolver_queries_render,
-	.title   = knot_resolver_queries_title,
-	.vlabel  = td_graph_vlabel_qps,
+	.name        = "KnotResolverQueries",
+	.can_render  = knot_resolver_can_render,
+	.render      = knot_resolver_queries_render,
+	.title       = knot_resolver_queries_title,
+	.vlabel      = td_graph_vlabel_qps,
 
 	// Limits
 	.lower_limit = 0,