kubernetes · danwinship · Sep 28, 2025
diff --git a/config/jobs/kubernetes/sig-network/sig-network-kind.yaml b/config/jobs/kubernetes/sig-network/sig-network-kind.yaml
@@ -965,3 +965,47 @@ periodics:
           # this is mostly for building kubernetes
           memory: 9Gi
           cpu: 7
+- interval: 24h
+  cluster: k8s-infra-prow-build
+  name: ci-kubernetes-kind-network-deprecate-endpoints
+  annotations:
+    testgrid-dashboards: sig-network-kind
+    testgrid-tab-name: sig-network-kind, deprecate-endpoints
+    description: Uses kind to run e2e sig-network tests against latest kubernetes master with the Endpoints and EndpointSlice mirroring controllers disabled
+    testgrid-alert-email: [email protected], [email protected]
+    testgrid-num-columns-recent: '6'
+  labels:
+    preset-dind-enabled: "true"
+  decorate: true
+  decoration_config:
+    timeout: 60m
+  extra_refs:
+  - org: kubernetes
+    repo: kubernetes
+    base_ref: master
+    path_alias: k8s.io/kubernetes
+  spec:
+    containers:
+    - image: gcr.io/k8s-staging-test-infra/krte:v20250925-95b5a2c7a5-master
+      command:
+      - wrapper.sh
+      - bash
+      - -c
+      - curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" && $GOPATH/src/k8s.io/test-infra/experiment/kind-noendpoints-e2e.sh
+      env:
+      - name: LABEL_FILTER
+        value: "(Conformance || sig-network ) && !EndpointsController && !EndpointSliceMirroring && !Disruptive && !Flaky"
+      - name: SKIP
+        value: SCTPConnectivity
+      - name: PARALLEL
+        value: "true"
+      # we need privileged mode in order to do docker in docker
+      securityContext:
+        privileged: true
+      resources:
+        limits:
+          cpu: 4
+          memory: 9Gi
+        requests:
+          cpu: 4
+          memory: 9Gi
diff --git a/experiment/kind-noendpoints-e2e.sh b/experiment/kind-noendpoints-e2e.sh
@@ -0,0 +1,316 @@
+#!/bin/sh
+# Copyright 2018 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# hack script for running a kind e2e
+# must be run with a kubernetes checkout in $PWD (IE from the checkout)
+# Usage: SKIP="ginkgo skip regex" FOCUS="ginkgo focus regex" kind-e2e.sh
+
+set -o errexit -o nounset -o xtrace
+
+# Settings:
+# SKIP: ginkgo skip regex
+# FOCUS: ginkgo focus regex
+# LABEL_FILTER: ginkgo label query for selecting tests (see "Spec Labels" in https://onsi.github.io/ginkgo/#filtering-specs)
+#
+# The default is to focus on conformance tests. Serial tests get skipped when
+# parallel testing is enabled. Using LABEL_FILTER instead of combining SKIP and
+# FOCUS is recommended (more expressive, easier to read than regexp).
+#
+# GA_ONLY: true  - limit to GA APIs/features as much as possible
+#          false - (default) APIs and features left at defaults
+# FEATURE_GATES:
+#          JSON or YAML encoding of a string/bool map: {"FeatureGateA": true, "FeatureGateB": false}
+#          Enables or disables feature gates in the entire cluster.
+#          Cannot be used when GA_ONLY=true.
+# RUNTIME_CONFIG:
+#          JSON or YAML encoding of a string/string (!) map: {"apia.example.com/v1alpha1": "true", "apib.example.com/v1beta1": "false"}
+#          Enables API groups in the apiserver via --runtime-config.
+#          Cannot be used when GA_ONLY=true.
+
+# cleanup logic for cleanup on exit
+CLEANED_UP=false
+cleanup() {
+  if [ "$CLEANED_UP" = "true" ]; then
+    return
+  fi
+  # KIND_CREATE_ATTEMPTED is true once we: kind create
+  if [ "${KIND_CREATE_ATTEMPTED:-}" = true ]; then
+    kind "export" logs "${ARTIFACTS}" || true
+    kind delete cluster || true
+  fi
+  rm -f _output/bin/e2e.test || true
+  # remove our tempdir, this needs to be last, or it will prevent kind delete
+  if [ -n "${TMP_DIR:-}" ]; then
+    rm -rf "${TMP_DIR:?}"
+  fi
+  CLEANED_UP=true
+}
+
+# setup signal handlers
+# shellcheck disable=SC2317 # this is not unreachable code
+signal_handler() {
+  if [ -n "${GINKGO_PID:-}" ]; then
+    kill -TERM "$GINKGO_PID" || true
+  fi
+  cleanup
+}
+trap signal_handler INT TERM
+
+# build kubernetes / node image, e2e binaries
+build() {
+  # build the node image w/ kubernetes
+  kind build node-image -v 1
+  # Ginkgo v1 is used by Kubernetes 1.24 and earlier, fallback if v2 is not available.
+  GINKGO_SRC_DIR="vendor/github.com/onsi/ginkgo/v2/ginkgo"
+  if [ ! -d "$GINKGO_SRC_DIR" ]; then
+      GINKGO_SRC_DIR="vendor/github.com/onsi/ginkgo/ginkgo"
+  fi
+  # make sure we have e2e requirements
+  make all WHAT="cmd/kubectl test/e2e/e2e.test ${GINKGO_SRC_DIR}"
+
+  # Ensure the built kubectl is used instead of system
+  export PATH="${PWD}/_output/bin:$PATH"
+}
+
+check_structured_log_support() {
+	case "${KUBE_VERSION}" in
+		v1.1[0-8].*)
+			echo "$1 is only supported on versions >= v1.19, got ${KUBE_VERSION}"
+			exit 1
+			;;
+	esac
+}
+
+# up a cluster with kind
+create_cluster() {
+  # Grab the version of the cluster we're about to start
+  KUBE_VERSION="$(docker run --rm --entrypoint=cat "kindest/node:latest" /kind/version)"
+
+  # Default Log level for all components in test clusters
+  KIND_CLUSTER_LOG_LEVEL=${KIND_CLUSTER_LOG_LEVEL:-4}
+
+  # potentially enable --logging-format
+  CLUSTER_LOG_FORMAT=${CLUSTER_LOG_FORMAT:-}
+  scheduler_extra_args="      \"v\": \"${KIND_CLUSTER_LOG_LEVEL}\""
+  controllerManager_extra_args="      \"v\": \"${KIND_CLUSTER_LOG_LEVEL}\""
+  apiServer_extra_args="      \"v\": \"${KIND_CLUSTER_LOG_LEVEL}\""
+  if [ -n "$CLUSTER_LOG_FORMAT" ]; then
+      check_structured_log_support "CLUSTER_LOG_FORMAT"
+      scheduler_extra_args="${scheduler_extra_args}
+      \"logging-format\": \"${CLUSTER_LOG_FORMAT}\""
+      controllerManager_extra_args="${controllerManager_extra_args}
+      \"logging-format\": \"${CLUSTER_LOG_FORMAT}\""
+      apiServer_extra_args="${apiServer_extra_args}
+      \"logging-format\": \"${CLUSTER_LOG_FORMAT}\""
+  fi
+  kubelet_extra_args="      \"v\": \"${KIND_CLUSTER_LOG_LEVEL}\"
+      \"container-log-max-files\": \"10\"
+      \"container-log-max-size\": \"100Mi\""
+  KUBELET_LOG_FORMAT=${KUBELET_LOG_FORMAT:-$CLUSTER_LOG_FORMAT}
+  if [ -n "$KUBELET_LOG_FORMAT" ]; then
+      check_structured_log_support "KUBECTL_LOG_FORMAT"
+      kubelet_extra_args="${kubelet_extra_args}
+      \"logging-format\": \"${KUBELET_LOG_FORMAT}\""
+  fi
+
+  # JSON or YAML map injected into featureGates config
+  feature_gates="${FEATURE_GATES:-{\}}"
+  # --runtime-config argument value passed to the API server, again as a map
+  runtime_config="${RUNTIME_CONFIG:-{\}}"
+
+  case "${GA_ONLY:-false}" in
+  false)
+    :
+    ;;
+  true)
+    if [ "${feature_gates}" != "{}" ]; then
+      echo "GA_ONLY=true and FEATURE_GATES=${feature_gates} are mutually exclusive."
+      exit 1
+    fi
+    if [ "${runtime_config}" != "{}" ]; then
+      echo "GA_ONLY=true and RUNTIME_CONFIG=${runtime_config} are mutually exclusive."
+      exit 1
+    fi
+
+    echo "Limiting to GA APIs and features for ${KUBE_VERSION}"
+    feature_gates='{"AllAlpha":false,"AllBeta":false}'
+    runtime_config='{"api/alpha":"false", "api/beta":"false"}'
+    ;;
+  *)
+    echo "\$GA_ONLY set to '${GA_ONLY}'; supported values are true and false (default)"
+    exit 1
+    ;;
+  esac
+
+  # create the config file
+  cat <<EOF > "${ARTIFACTS}/kind-config.yaml"
+# config for 1 control plane node and 2 workers (necessary for conformance)
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+networking:
+  ipFamily: ${IP_FAMILY:-ipv4}
+  kubeProxyMode: ${KUBE_PROXY_MODE:-iptables}
+  # don't pass through host search paths
+  # TODO: possibly a reasonable default in the future for kind ...
+  dnsSearch: []
+nodes:
+- role: control-plane
+- role: worker
+- role: worker
+featureGates: ${feature_gates}
+runtimeConfig: ${runtime_config}
+kubeadmConfigPatches:
+- |
+  kind: ClusterConfiguration
+  metadata:
+    name: config
+  apiServer:
+    extraArgs:
+${apiServer_extra_args}
+  controllerManager:
+    extraArgs:
+      controllers: "-endpoints-controller,-endpointslice-mirroring-controller,*"
+${controllerManager_extra_args}
+  scheduler:
+    extraArgs:
+${scheduler_extra_args}
+  ---
+  kind: InitConfiguration
+  nodeRegistration:
+    kubeletExtraArgs:
+${kubelet_extra_args}
+  ---
+  kind: JoinConfiguration
+  nodeRegistration:
+    kubeletExtraArgs:
+${kubelet_extra_args}
+EOF
+  # NOTE: must match the number of workers above
+  NUM_NODES=2
+  # actually create the cluster
+  # TODO(BenTheElder): settle on verbosity for this script
+  KIND_CREATE_ATTEMPTED=true
+  kind create cluster \
+    --image=kindest/node:latest \
+    --retain \
+    --wait=1m \
+    -v=3 \
+    "--config=${ARTIFACTS}/kind-config.yaml"
+
+  # debug cluster version
+  kubectl version
+
+  # Patch kube-proxy to set the verbosity level
+  kubectl patch -n kube-system daemonset/kube-proxy \
+    --type='json' -p='[{"op": "add", "path": "/spec/template/spec/containers/0/command/-", "value": "--v='"${KIND_CLUSTER_LOG_LEVEL}"'" }]'
+}
+
+# run e2es with ginkgo-e2e.sh
+run_tests() {
+  # IPv6 clusters need some CoreDNS changes in order to work in k8s CI:
+  # 1. k8s CI doesn´t offer IPv6 connectivity, so CoreDNS should be configured
+  # to work in an offline environment:
+  # https://github.com/coredns/coredns/issues/2494#issuecomment-457215452
+  # 2. k8s CI adds following domains to resolv.conf search field:
+  # c.k8s-prow-builds.internal google.internal.
+  # CoreDNS should handle those domains and answer with NXDOMAIN instead of SERVFAIL
+  # otherwise pods stops trying to resolve the domain.
+  if [ "${IP_FAMILY:-ipv4}" = "ipv6" ]; then
+    # Get the current config
+    original_coredns=$(kubectl get -oyaml -n=kube-system configmap/coredns)
+    echo "Original CoreDNS config:"
+    echo "${original_coredns}"
+    # Patch it
+    fixed_coredns=$(
+      printf '%s' "${original_coredns}" | sed \
+        -e 's/^.*kubernetes cluster\.local/& internal/' \
+        -e '/^.*upstream$/d' \
+        -e '/^.*fallthrough.*$/d' \
+        -e '/^.*forward . \/etc\/resolv.conf$/d' \
+        -e '/^.*loop$/d' \
+    )
+    echo "Patched CoreDNS config:"
+    echo "${fixed_coredns}"
+    printf '%s' "${fixed_coredns}" | kubectl apply -f -
+  fi
+
+  # ginkgo regexes and label filter
+  SKIP="${SKIP:-}"
+  FOCUS="${FOCUS:-}"
+  LABEL_FILTER="${LABEL_FILTER:-}"
+  if [ -z "${FOCUS}" ] && [ -z "${LABEL_FILTER}" ]; then
+    FOCUS="\\[Conformance\\]"
+  fi
+  # if we set PARALLEL=true, skip serial tests set --ginkgo-parallel
+  if [ "${PARALLEL:-false}" = "true" ]; then
+    export GINKGO_PARALLEL=y
+    if [ -z "${SKIP}" ]; then
+      SKIP="\\[Serial\\]"
+    else
+      SKIP="\\[Serial\\]|${SKIP}"
+    fi
+  fi
+
+  # setting this env prevents ginkgo e2e from trying to run provider setup
+  export KUBERNETES_CONFORMANCE_TEST='y'
+  # setting these is required to make RuntimeClass tests work ... :/
+  export KUBE_CONTAINER_RUNTIME=remote
+  export KUBE_CONTAINER_RUNTIME_ENDPOINT=unix:///run/containerd/containerd.sock
+  export KUBE_CONTAINER_RUNTIME_NAME=containerd
+  # ginkgo can take forever to exit, so we run it in the background and save the
+  # PID, bash will not run traps while waiting on a process, but it will while
+  # running a builtin like `wait`, saving the PID also allows us to forward the
+  # interrupt
+  ./hack/ginkgo-e2e.sh \
+    '--provider=skeleton' "--num-nodes=${NUM_NODES}" \
+    "--ginkgo.focus=${FOCUS}" "--ginkgo.skip=${SKIP}" "--ginkgo.label-filter=${LABEL_FILTER}" \
+    "--report-dir=${ARTIFACTS}" '--disable-log-dump=true' &
+  GINKGO_PID=$!
+  wait "$GINKGO_PID"
+}
+
+main() {
+  # create temp dir and setup cleanup
+  TMP_DIR=$(mktemp -d)
+
+  # ensure artifacts (results) directory exists when not in CI
+  export ARTIFACTS="${ARTIFACTS:-${PWD}/_artifacts}"
+  mkdir -p "${ARTIFACTS}"
+
+  # export the KUBECONFIG to a unique path for testing
+  KUBECONFIG="${HOME}/.kube/kind-test-config"
+  export KUBECONFIG
+  echo "exported KUBECONFIG=${KUBECONFIG}"
+
+  # debug kind version
+  kind version
+
+  # build kubernetes
+  build
+  # in CI attempt to release some memory after building
+  if [ -n "${KUBETEST_IN_DOCKER:-}" ]; then
+    sync || true
+    echo 1 > /proc/sys/vm/drop_caches || true
+  fi
+
+  # create the cluster and run tests
+  res=0
+  create_cluster || res=$?
+  run_tests || res=$?
+  cleanup || res=$?
+  exit $res
+}
+
+main