fix(helm): reject boolean sandbox UID and GID

Signed-off-by: Eric Curtin <eric.curtin@docker.com>

deploy/helm/openshell/templates/_helpers.tpl

@@ -384,11 +384,12 @@ Render a sandbox UID/GID chart value as an integer, or nothing when unset.
 Takes a dict with `name` (the values key, for errors) and `value`. The bounds
 match openshell_policy::MIN_SANDBOX_UID..=MAX_SANDBOX_UID. Helm parses YAML
 numbers as float64, so the integer conversion also avoids `2e+09` rendering.
+Booleans are rejected because they would otherwise convert to 1 or 0.
 */}}
 {{- define "openshell.sandboxId" -}}
 {{- if not (or (kindIs "invalid" .value) (eq (toString .value) "")) -}}
 {{- $id := int64 .value -}}
-{{- if or (ne (float64 .value) (float64 $id)) (lt $id 1) (gt $id 4294967294) -}}
+{{- if or (kindIs "bool" .value) (ne (float64 .value) (float64 $id)) (lt $id 1) (gt $id 4294967294) -}}
 {{- fail (printf "%s must be an integer between 1 and 4294967294" .name) -}}
 {{- end -}}
 {{- $id -}}

deploy/helm/openshell/tests/gateway_sandbox_identity_test.yaml

@@ -77,3 +77,17 @@ tests:
     asserts:
       - failedTemplate:
           errorPattern: "server.sandboxUid must be an integer between 1 and 4294967294"
+
+  - it: rejects a boolean sandbox UID
+    set:
+      server.sandboxUid: true
+    asserts:
+      - failedTemplate:
+          errorPattern: "server.sandboxUid must be an integer between 1 and 4294967294"
+
+  - it: rejects a boolean sandbox GID
+    set:
+      server.sandboxGid: true
+    asserts:
+      - failedTemplate:
+          errorPattern: "server.sandboxGid must be an integer between 1 and 4294967294"