K8s manifest hardening + new bluejay-infra-lint test project

Manifest hardening (per documented memories):
- apps/asterisk/deployment.yaml: dnsPolicy: None + explicit dnsConfig
  with ndots:2 to prevent CoreDNS *.iamworkin.lan template from
  hijacking external egress (downloads.asterisk.org).
- apps/fc-llm-bridge/fc-llm-bridge.yaml: same dnsConfig pattern for
  api.anthropic.com egress.
- apps/fc-ttsreader/fc-ttsreader.yaml: same dnsConfig pattern for
  huggingface.co model seeding.
- apps/fc-messageboard/fc-messageboard.yaml: tcpSocket probes
  (replacing httpGet /health) per "Probes against /health 404 when
  app has global auth middleware".
- apps/fc-signalcontrol/fc-signalcontrol.yaml: same tcpSocket probe
  fix.

New lint project:
- tests/bluejay-infra-lint/BluejayInfraLint.Tests.csproj — local-first
  lint test sweep for the recurring K8s gotchas in the fleet.
- tests/bluejay-infra-lint/FleetManifestLintTests.cs — 7 lint tests
  covering tcpSocket probes, dnsConfig presence on egress-heavy pods,
  IngressRoute/Service namespace alignment, image pull policy, etc.
- tests/bluejay-infra-lint/conftest.dev/ — matching conftest policies
  for environments with conftest/opa.
- .gitignore — adds bin/ + obj/ + DS_Store/swp.

README.md adds a "Local manifest lint" section with the canonical
test command, plus 4 new gotcha entries (IngressRoute namespace
split, public read-only host method allowlists, Traefik VIP netpol
backend ports, auth-safe probes).

Tests: 7 / 7 lint tests passed.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/bluejay-infra-lint/conftest.dev/01_cross_namespace_ingressroute.rego

@@ -0,0 +1,12 @@
+package bluejayinfra.cross_namespace_ingressroute
+
+deny[msg] {
+  input.kind == "IngressRoute"
+  ns := object.get(input.metadata, "namespace", "")
+  route := input.spec.routes[_]
+  service := route.services[_]
+  svc_ns := object.get(service, "namespace", "")
+  svc_ns != ""
+  svc_ns != ns
+  msg := sprintf("IngressRoute %s/%s references Service %s in namespace %s", [ns, input.metadata.name, service.name, svc_ns])
+}

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

@@ -0,0 +1,23 @@
+package bluejayinfra.public_method_allowlist
+
+public_hosts := {"dist.flowercore.io", "dns.iamworkin.lan"}
+
+deny[msg] {
+  input.kind == "IngressRoute"
+  route := input.spec.routes[_]
+  match := object.get(route, "match", "")
+  host := public_hosts[_]
+  contains(match, sprintf("Host(`%s`)", [host]))
+  not contains(match, "Method(`GET`)")
+  msg := sprintf("IngressRoute %s/%s is missing Method(GET) for public read-only host %s", [input.metadata.namespace, input.metadata.name, host])
+}
+
+deny[msg] {
+  input.kind == "IngressRoute"
+  route := input.spec.routes[_]
+  match := object.get(route, "match", "")
+  host := public_hosts[_]
+  contains(match, sprintf("Host(`%s`)", [host]))
+  not contains(match, "Method(`HEAD`)")
+  msg := sprintf("IngressRoute %s/%s is missing Method(HEAD) for public read-only host %s", [input.metadata.namespace, input.metadata.name, host])
+}

tests/bluejay-infra-lint/conftest.dev/03_traefik_vip_backend_ports.rego

@@ -0,0 +1,30 @@
+package bluejayinfra.traefik_vip_backend_ports
+
+has_vip {
+  some i
+  some j
+  input.spec.egress[i].to[j].ipBlock.cidr == "10.0.56.200/32"
+}
+
+has_port(port) {
+  some i
+  some j
+  input.spec.egress[i].ports[j].port == port
+}
+
+deny[msg] {
+  input.kind == "NetworkPolicy"
+  has_vip
+  has_port(443)
+  not has_port(8443)
+  msg := sprintf("NetworkPolicy %s/%s allows 10.0.56.200:443 without backend port 8443", [input.metadata.namespace, input.metadata.name])
+}
+
+deny[msg] {
+  input.kind == "NetworkPolicy"
+  has_vip
+  has_port(80)
+  not has_port(8080)
+  not has_port(8000)
+  msg := sprintf("NetworkPolicy %s/%s allows 10.0.56.200:80 without backend HTTP port 8080 or 8000", [input.metadata.namespace, input.metadata.name])
+}

tests/bluejay-infra-lint/conftest.dev/04_auth_probe_path.rego

@@ -0,0 +1,28 @@
+package bluejayinfra.auth_probe_path
+
+protected_deployments := {
+  "messageboard-web",
+  "scoreboard-web",
+  "segmentdisplay-web",
+  "signalcontrol-web",
+}
+
+deny[msg] {
+  input.kind == "Deployment"
+  protected_deployments[input.metadata.name]
+  container := input.spec.template.spec.containers[_]
+  probe := object.get(container, "readinessProbe", {})
+  http_get := object.get(probe, "httpGet", {})
+  object.get(http_get, "path", "") == "/health"
+  msg := sprintf("Deployment %s/%s must not use readinessProbe.httpGet /health behind API key middleware", [input.metadata.namespace, input.metadata.name])
+}
+
+deny[msg] {
+  input.kind == "Deployment"
+  protected_deployments[input.metadata.name]
+  container := input.spec.template.spec.containers[_]
+  probe := object.get(container, "livenessProbe", {})
+  http_get := object.get(probe, "httpGet", {})
+  object.get(http_get, "path", "") == "/health"
+  msg := sprintf("Deployment %s/%s must not use livenessProbe.httpGet /health behind API key middleware", [input.metadata.namespace, input.metadata.name])
+}

tests/bluejay-infra-lint/conftest.dev/05_statefulset_volumeclaim_defaults.rego

@@ -0,0 +1,23 @@
+package bluejayinfra.statefulset_volumeclaim_defaults
+
+deny[msg] {
+  input.kind == "StatefulSet"
+  count(object.get(input.spec, "volumeClaimTemplates", [])) > 0
+  object.get(input.spec, "podManagementPolicy", "") == ""
+  msg := sprintf("StatefulSet %s/%s is missing spec.podManagementPolicy", [input.metadata.namespace, input.metadata.name])
+}
+
+deny[msg] {
+  input.kind == "StatefulSet"
+  count(object.get(input.spec, "volumeClaimTemplates", [])) > 0
+  object.get(input.spec, "revisionHistoryLimit", 0) == 0
+  msg := sprintf("StatefulSet %s/%s is missing spec.revisionHistoryLimit", [input.metadata.namespace, input.metadata.name])
+}
+
+deny[msg] {
+  input.kind == "StatefulSet"
+  claim := input.spec.volumeClaimTemplates[_]
+  object.get(claim.spec, "volumeMode", "") != "Filesystem"
+  claim_name := object.get(claim.metadata, "name", "<unnamed>")
+  msg := sprintf("StatefulSet %s/%s volumeClaimTemplate %s is missing volumeMode: Filesystem", [input.metadata.namespace, input.metadata.name, claim_name])
+}

tests/bluejay-infra-lint/conftest.dev/06_localhost_image_pull_policy.rego

@@ -0,0 +1,40 @@
+package bluejayinfra.localhost_image_pull_policy
+
+pod_spec(spec) = pod {
+  input.kind == "Deployment"
+  pod := spec.template.spec
+}
+
+pod_spec(spec) = pod {
+  input.kind == "StatefulSet"
+  pod := spec.template.spec
+}
+
+pod_spec(spec) = pod {
+  input.kind == "DaemonSet"
+  pod := spec.template.spec
+}
+
+deny[msg] {
+  pod := pod_spec(input.spec)
+  container := pod.containers[_]
+  startswith(object.get(container, "image", ""), "localhost/")
+  object.get(container, "imagePullPolicy", "") != "Never"
+  msg := sprintf("%s/%s container %s uses a localhost image without imagePullPolicy: Never", [input.metadata.namespace, input.metadata.name, container.name])
+}
+
+deny[msg] {
+  pod := pod_spec(input.spec)
+  container := pod.initContainers[_]
+  startswith(object.get(container, "image", ""), "localhost/")
+  object.get(container, "imagePullPolicy", "") != "Never"
+  msg := sprintf("%s/%s initContainer %s uses a localhost image without imagePullPolicy: Never", [input.metadata.namespace, input.metadata.name, container.name])
+}
+
+deny[msg] {
+  pod := pod_spec(input.spec)
+  container := pod.containers[_]
+  startswith(object.get(container, "image", ""), "fc-")
+  not contains(object.get(container, "image", ""), "/")
+  msg := sprintf("%s/%s container %s uses a non-localhost FlowerCore image reference %s", [input.metadata.namespace, input.metadata.name, container.name, container.image])
+}

tests/bluejay-infra-lint/conftest.dev/07_public_egress_dns_none.rego

@@ -0,0 +1,27 @@
+package bluejayinfra.public_egress_dns_none
+
+public_egress_workloads := {
+  "asterisk",
+  "fc-llm-bridge",
+  "mysql-web",
+  "php-web",
+  "ttsreader-align",
+  "ttsreader-kokoro",
+  "ttsreader-modern",
+  "ttsreader-piper",
+}
+
+deny[msg] {
+  input.kind == "Deployment"
+  public_egress_workloads[input.metadata.name]
+  object.get(input.spec.template.spec, "dnsPolicy", "") != "None"
+  msg := sprintf("Deployment %s/%s must set dnsPolicy: None for public-internet egress", [input.metadata.namespace, input.metadata.name])
+}
+
+deny[msg] {
+  input.kind == "Deployment"
+  public_egress_workloads[input.metadata.name]
+  search := object.get(object.get(input.spec.template.spec, "dnsConfig", {}), "searches", [])[_]
+  contains(lower(search), "iamworkin.lan")
+  msg := sprintf("Deployment %s/%s must not include iamworkin.lan in dnsConfig.searches", [input.metadata.namespace, input.metadata.name])
+}