add debug!() when checking for cert rotation

Author: razvan

Cargo.lock

@@ -29,6 +29,7 @@ either = "1.13.0"
 futures = "0.3.30"
 futures-util = "0.3.30"
 http = "1.3.1"
+humantime = "2.1.0"
 indexmap = "2.5.0"
 indoc = "2.0.6"
 jiff = "0.2.18"

Cargo.toml

@@ -15,6 +15,7 @@ arc-swap.workspace = true
 async-trait.workspace = true
 axum.workspace = true
 futures-util.workspace = true
+humantime.workspace = true
 hyper-util.workspace = true
 hyper.workspace = true
 k8s-openapi.workspace = true

crates/stackable-webhook/Cargo.toml

@@ -107,6 +107,13 @@ impl CertificateResolver {
         let deadline = not_after
             .checked_sub(buffer)
             .unwrap_or(SystemTime::UNIX_EPOCH);
+
+        tracing::debug!(
+            subject_alterative_dns_names = ?self.subject_alterative_dns_names,
+            not_after = %humantime::format_rfc3339(not_after),
+            deadline = %humantime::format_rfc3339(deadline),
+            "checking if certificate needs rotation"
+        );
         SystemTime::now() >= deadline
     }