harden updatecenter public route methods

apps/fc-updater/README.md

@@ -43,5 +43,6 @@ shared origin cert must exist in every namespace that serves a
 ```powershell
 kubectl.exe --kubeconfig C:\Users\AndrewStoltz\.kube\rke2.yaml -n argocd get application infra-fc-updater
 kubectl.exe --kubeconfig C:\Users\AndrewStoltz\.kube\rke2.yaml -n fc-updater get deploy,svc,ingressroute,certificate,pvc
-curl.exe -sk https://update.flowercore.io/api/v1/manifests/_schema
+curl.exe -sk https://update.flowercore.io/
+curl.exe -sk -o NUL -w "%{http_code}`n" https://update.flowercore.io/login
 ```

apps/fc-updater/fc-updater.yaml

@@ -266,7 +266,7 @@ spec:
   entryPoints:
     - websecure
   routes:
-    - match: (Host(`update.flowercore.io`) || Host(`updates.flowercore.io`)) && (Method(`GET`) || Method(`HEAD`) || Method(`POST`) || Method(`OPTIONS`))
+    - match: (Host(`update.flowercore.io`) || Host(`updates.flowercore.io`)) && (Method(`GET`) || Method(`HEAD`))
       kind: Rule
       services:
         - name: updatecenter-web

tests/bluejay-infra-lint/FleetManifestLintTests.cs

@@ -1013,6 +1013,22 @@ public sealed class FleetManifestLintTests
         match.Should().NotContain("Method(`POST`)");
     }
 
+    [Fact]
+    public void UpdateCenterPublicIngress_KeepsDeliveryOnlyGetHeadMethodAllowlist()
+    {
+        var publicIngress = AppDocuments("fc-updater")
+            .Single(document => document.Kind == "IngressRoute" && document.Name == "updatecenter-web-public");
+        var route = publicIngress.MappingSequence("spec", "routes").Should().ContainSingle().Subject;
+        var match = ManifestNodeExtensions.Scalar(route, "match");
+
+        match.Should().Contain("Host(`update.flowercore.io`)");
+        match.Should().Contain("Host(`updates.flowercore.io`)");
+        match.Should().Contain("Method(`GET`)");
+        match.Should().Contain("Method(`HEAD`)");
+        match.Should().NotContain("Method(`POST`)");
+        match.Should().NotContain("Method(`OPTIONS`)");
+    }
+
     [Fact]
     public void DnsAndMediaIngressRoutes_MatchLiveInternalHosts()
     {

tests/bluejay-infra-lint/conftest.dev/08_public_readwrite_allowlist.rego

@@ -9,8 +9,6 @@ package bluejayinfra.public_readwrite_allowlist
 public_readwrite_hosts := {
   "updatecenter.iamworkin.lan",
   "updates.iamworkin.lan",
-  "update.flowercore.io",
-  "updates.flowercore.io",
 }
 
 required_methods := {"GET", "HEAD", "POST", "OPTIONS"}