deploy(updater): gate public UpdateCenter host

README.md

@@ -101,7 +101,7 @@ curl -sk -X DELETE https://dns.iamworkin.lan/api/v1/servers/<serverId>/zones/iam
 - **StatefulSet PVC drift**: `volumeClaimTemplates` needs explicit `volumeMode: Filesystem` or ArgoCD SSA self-heals forever. See memory `feedback_argocd_statefulset_pvc_drift.md`.
 - **IngressRoute namespace split**: this RKE2 Traefik install does not allow cross-namespace service refs. Keep the `IngressRoute`, backend `Service`, and TLS secret in the same namespace; if one host is shared across namespaces, duplicate the `Certificate` and move the route next to the destination service.
 - **Public read-only hosts**: if a public host fronts a service that also exposes admin writes internally, add a Traefik route match like `Host(...) && (Method(GET) || Method(HEAD))` on the public edge instead of trusting the app to reject unsafe methods.
-- **Public read-write allowlist hosts**: if a public host accepts a tightly bounded write surface (e.g. bootstrap-JWT POST), pin the allowlist as `(Method(GET) || Method(HEAD) || Method(POST) || Method(OPTIONS))`. PUT/PATCH/DELETE must still 404 at the route. Track A's `updatecenter.iamworkin.lan` / `updates.iamworkin.lan` are the canonical example. The lint test enforces this invariant.
+- **Public read-write allowlist hosts**: if a public host accepts a tightly bounded write surface (e.g. bootstrap-JWT POST), pin the allowlist as `(Method(GET) || Method(HEAD) || Method(POST) || Method(OPTIONS))`. PUT/PATCH/DELETE must still 404 at the route. Internal UpdateCenter hosts (`updatecenter.iamworkin.lan` / `updates.iamworkin.lan`) are the canonical example. Public UpdateCenter delivery hosts (`update.flowercore.io` / `updates.flowercore.io`) stay GET/HEAD-only and share-link gated until an explicit operator decision changes that posture.
 - **Traefik VIP netpols**: when a `NetworkPolicy` allows `10.0.56.200`, also allow the post-DNAT backend ports (`8443` for TLS plus `8080` or `8000` for HTTP) or Calico will drop the rewritten flow.
 - **Auth-safe probes**: services behind API-key or global auth middleware should prefer `tcpSocket` probes unless `/health` is explicitly exempted before the middleware runs.
 - **ArgoCD must use internal Gitea URL**: `http://gitea-clusterip.gitea.svc.cluster.local:3000/bluejay/bluejay-infra.git`, not the external HTTPS URL (step-ca cert isn't trusted by ArgoCD). The `ApplicationSet` and any hand-created `Application` must both use the internal URL.

apps-gx10/fc-updater/deployment-updatecenter-web.json

@@ -57,6 +57,10 @@
                 "name": "FlowerCore__Updater__PublicShares__RequirePublicVisibilityOnPublicHosts",
                 "value": "true"
               },
+              {
+                "name": "FlowerCore__Updater__PublicShares__RequireShareLinkOnPublicHosts",
+                "value": "true"
+              },
               {
                 "name": "FlowerCore__Updater__PublicShares__Links__0__Code",
                 "value": "8f3c2a9e7d41"
@@ -195,7 +199,7 @@
                 "value": "26843545600"
               }
             ],
-            "image": "localhost/fc-updater-web:v20260617-sec5-913c6a9",
+            "image": "localhost/fc-updater-web:v20260618-public-exposure-6c0d0e4",
             "imagePullPolicy": "Never",
             "securityContext": {
               "allowPrivilegeEscalation": false,

apps-gx10/fc-updater/ingressroute-updatecenter-web-public-gx10.json

@@ -12,7 +12,7 @@
     "routes": [
       {
         "kind": "Rule",
-        "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`))",
         "priority": 100,
         "services": [
           {

tests/bluejay-infra-lint/FleetManifestLintTests.cs

@@ -16,6 +16,8 @@ public sealed class FleetManifestLintTests
     {
         "brochure.flowercore.io",
         "dist.flowercore.io",
+        "update.flowercore.io",
+        "updates.flowercore.io",
     };
 
     // Hosts that allow a tightly bounded write surface in addition to GET/HEAD.

tests/bluejay-infra-lint/conftest.dev/02_public_method_allowlist.rego

@@ -1,6 +1,12 @@
 package bluejayinfra.public_method_allowlist
 
-public_hosts := {"brochure.flowercore.io", "dist.flowercore.io", "dns.iamworkin.lan"}
+public_hosts := {
+  "brochure.flowercore.io",
+  "dist.flowercore.io",
+  "dns.iamworkin.lan",
+  "update.flowercore.io",
+  "updates.flowercore.io",
+}
 
 deny[msg] {
   input.kind == "IngressRoute"

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"}