The NetworkPolicy tests work by trying to connect to a service by its
name, which means that for the tests that involved creating egress
policies, it had to always create an extra rule allowing egress for
DNS, but this assumed that DNS was running on UDP port 53. If it was
running somewhere else (eg if you changed the CoreDNS pods to use port
5353 to avoid needing to give them the NET_BIND_SERVICE capability)
then the NetworkPolicy tests would fail.
Fix this by making the tests connect to their services by IP rather
than by name, and removing all the DNS special-case rules. There are
other tests that ensure that Service DNS works.
The integration test for pods produces a warning caused by using deprecated
default cluster IPs.
$ make test-integration WHAT=./test/integration/pods GOFLAGS="-v"
W1007 17:25:28.217410 100721 services.go:37] No CIDR for service cluster IPs specified. Default value which was 10.0.0.0/24 is deprecated and will be removed in future releases. Please specify it using --service-cluster-ip-range on kube-apiserver.
This warning appears 36 times after running all tests. This patch removes all
the warnings.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
PATCH verb is used when creating a namespace using server-side apply,
while POST verb is used when creating a namespace using client-side
apply.
The difference in path between the two ways to create a namespace led to
an inconsistency when calling webhooks. When server-side apply is used,
the request sent to webhooks has the field "namespace" populated with
the name of namespace being created. On the other hand, when using
client-side apply the "namespace" field is omitted.
This commit aims to make the behaviour consistent and populates the
"namespace" field when creating a namespace using POST verb (i.e.
client-side apply).
On HA API server hiccups we saw a prow job with error:
fail [k8s.io/kubernetes@v1.19.0/test/e2e/e2e.go:284]: Sep 30 17:06:08.313: Error waiting for all pods to be running and ready: 0 / 0 pods in namespace "kube-system" are NOT in RUNNING and READY state in 10m0s
POD NODE PHASE GRACE CONDITIONS
The failure should include the last error from API server, if it's
available:
fail [k8s.io/kubernetes@v1.19.0/test/e2e/e2e.go:284]: Oct 1 11:29:45.220: Error waiting for all pods to be running and ready: 0 / 0 pods in namespace "kube-system" are NOT in RUNNING and READY state in 10m0s
Last error: Get "https://localhost:6443/api/v1/namespaces/kube-system/replicationcontrollers": dial tcp [::1]:6443: connect: connection refused
POD NODE PHASE GRACE CONDITIONS
