From 7a00e60fb6f0a1c2f635a701fdc1e37f4a090be6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 30 Jan 2026 08:26:44 +0000
Subject: [PATCH 1/3] Initial plan


From 0e8a9cdd84e523b10b342ea350a7c8026d47e7fc Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 30 Jan 2026 08:29:39 +0000
Subject: [PATCH 2/3] Add validation for HTTPRoute hosts requirement

Co-authored-by: andibeuge <97287249+andibeuge@users.noreply.github.com>
---
 parcellab/common/templates/_httproutes.tpl | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/parcellab/common/templates/_httproutes.tpl b/parcellab/common/templates/_httproutes.tpl
index 4968f8a..5eaf756 100644
--- a/parcellab/common/templates/_httproutes.tpl
+++ b/parcellab/common/templates/_httproutes.tpl
@@ -17,6 +17,10 @@
 {{- $securityLabelKey := printf "%s/security-required" (include "common.parcellabtagsdomain" .) -}}
 
 {{- range $index, $route := $httproutes }}
+{{- $hosts := required (printf "envoy.httpRoutes[%d].hosts is required" $index) $route.hosts -}}
+{{- if not $hosts -}}
+{{- fail (printf "envoy.httpRoutes[%d].hosts cannot be empty" $index) -}}
+{{- end -}}
 {{- $rawRouteName := default (printf "%s-%d" $baseName $index) $route.name -}}
 {{- $sanitizedRouteName := trunc 63 (trimSuffix "-" (regexReplaceAll "[^a-z0-9-]" (lower $rawRouteName) "-")) -}}
 {{- $routeName := default (printf "%s-%d" $baseName $index) $sanitizedRouteName }}
@@ -34,7 +38,7 @@ metadata:
     {{- end }}
   annotations:
     external-dns.alpha.kubernetes.io/hostname: |
-    {{- range $route.hosts }}
+    {{- range $hosts }}
       {{ . }}
     {{- end }}
 spec:
@@ -44,7 +48,7 @@ spec:
       group: gateway.networking.k8s.io
       kind: Gateway
   hostnames:
-  {{- range $route.hosts }}
+  {{- range $hosts }}
     - {{ . | quote }}
   {{- end }}
   {{- with $route.rules }}

From ee86a0cd5512c90315e6cf065a5c0d2bb1c6aae3 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 30 Jan 2026 08:31:54 +0000
Subject: [PATCH 3/3] Use idiomatic len check for empty hosts validation

Co-authored-by: andibeuge <97287249+andibeuge@users.noreply.github.com>
---
 parcellab/common/templates/_httproutes.tpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/parcellab/common/templates/_httproutes.tpl b/parcellab/common/templates/_httproutes.tpl
index 5eaf756..7a5ad9f 100644
--- a/parcellab/common/templates/_httproutes.tpl
+++ b/parcellab/common/templates/_httproutes.tpl
@@ -18,7 +18,7 @@
 
 {{- range $index, $route := $httproutes }}
 {{- $hosts := required (printf "envoy.httpRoutes[%d].hosts is required" $index) $route.hosts -}}
-{{- if not $hosts -}}
+{{- if eq (len $hosts) 0 -}}
 {{- fail (printf "envoy.httpRoutes[%d].hosts cannot be empty" $index) -}}
 {{- end -}}
 {{- $rawRouteName := default (printf "%s-%d" $baseName $index) $route.name -}}