From 791d9aecfcf6a56cae6908f85351820ed85453f4 Mon Sep 17 00:00:00 2001
From: Bryan Boreham <bjboreham@gmail.com>
Date: Fri, 25 May 2018 10:29:40 +0000
Subject: [PATCH] Extend k8s test to cover namespaceSelector and >10 Namespaces

---
 test/840_weave_kube_3_test.sh | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/test/840_weave_kube_3_test.sh b/test/840_weave_kube_3_test.sh
index 63d305bf..f9a345cd 100755
--- a/test/840_weave_kube_3_test.sh
+++ b/test/840_weave_kube_3_test.sh
@@ -225,12 +225,39 @@ run_on $HOST1 "$KUBECTL delete netpol allow-nettest-deny"
 # nettest-deny should still not be able to reach nettest pods
 assert_raises "! $SSH $HOST1 $KUBECTL exec $denyPodName -- curl -s -S -f -m 2 http://$DOMAIN:8080/status >/dev/null"
 
-# allow access for all
+# Create many namespaces to stress namespaceSelector
+for n in 1 2 3 4 5 6 7 8 9 10; do
+    run_on $HOST1 "$KUBECTL create namespace namespace${n}"
+done
+
+# allow access from any namespace
 run_on $HOST1 "$KUBECTL apply -f -" <<EOF
 apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata:
-  name: allow-nettest-deny
+  name: allow-any-namespace
+  namespace: default
+spec:
+  podSelector: {}
+  ingress:
+    - from:
+      - namespaceSelector: {}
+EOF
+
+# Should be able to access from the "deny" pod now
+assert_raises "$SSH $HOST1 $KUBECTL exec $denyPodName -- curl -s -S -f -m 2 http://$DOMAIN:8080/status >/dev/null"
+
+# host should still not be able to reach pods via service virtual IP or NodePort
+# because host is not in a namespace
+assert_raises "! $SSH $HOST1 curl -s -S -f -m 2 http://$VIRTUAL_IP/status >/dev/null"
+assert_raises "! $SSH $HOST1 curl -s -S -f -m 2 http://$HOST2:31138/status >/dev/null"
+
+# allow access from anywhere
+run_on $HOST1 "$KUBECTL apply -f -" <<EOF
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-anywhere
   namespace: default
 spec:
   podSelector: {}
@@ -238,8 +265,6 @@ spec:
     - {}
 EOF
 
-assert_raises "$SSH $HOST1 $KUBECTL exec $denyPodName -- curl -s -S -f -m 2 http://$DOMAIN:8080/status >/dev/null"
-
 # Virtual IP and NodePort should now work
 assert_raises "$SSH $HOST1 curl -s -S -f -m 2 http://$VIRTUAL_IP/status >/dev/null"
 assert_raises "$SSH $HOST1 curl -s -S -f -m 2 http://$HOST2:31138/status >/dev/null"