add test case for bin-packing scoring strategy

test/e2e/e2e.sh

@@ -33,6 +33,7 @@ source test/e2e/webhook_ready.sh
 source test/e2e/no-rogue-finalizer/test.sh
 source test/e2e/delete-chaperon/test.sh
 source test/e2e/delete-delegate/test.sh
+source test/e2e/plugin-config-scoring-strategy/test.sh
 
 argo_setup_once
 cert_manager_setup_once
@@ -79,6 +80,7 @@ virtual-node-labels_test 1 2
 cleanup_test 1
 delete-chaperon_test 1
 delete-delegate_test 1 2
+plugin-config-scoring-strategy_test 1 2
 no-reservation_test
 
 no-rogue-finalizer_test

test/e2e/kind-config.yaml

@@ -0,0 +1,6 @@
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+  - role: control-plane
+  - role: worker
+  - role: worker

test/e2e/kind.sh

@@ -40,7 +40,7 @@ kind_setup() {
   CLUSTER=cluster$i
 
   if ! kind get clusters | grep $CLUSTER; then
-    kind create cluster --name $CLUSTER --wait 5m --image "${kind_images["$K8S_VERSION"]}"
+    kind create cluster --name $CLUSTER --wait 5m --image "${kind_images["$K8S_VERSION"]}" --config test/e2e/kind-config.yaml
   fi
   NODE_IP=$(docker inspect "${CLUSTER}-control-plane" --format "{{ .NetworkSettings.Networks.kind.IPAddress }}")
   kind get kubeconfig --name $CLUSTER --internal | \

test/e2e/plugin-config-scoring-strategy/test.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+#
+# Copyright 2024 The Multicluster-Scheduler 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.
+#
+
+set -euo pipefail
+
+source test/e2e/aliases.sh
+
+plugin-config-scoring-strategy_test() {
+  i=$1
+  j=$2
+  k $j label node --all a=b --overwrite
+
+  # Find the node with the highest CPU utilization
+  nodes=$(k $j get nodes -o name | sed s/"node\/"//)
+  most_allocated=""
+  most_cpu_requests="0"
+  for node in $nodes; do
+      cpu_requests=$(k $j describe node "$node" | grep -A5 "Allocated" | awk '{print $3}' | sed -n '5p' | tr -d '()%')
+      echo "node: $node, cpu requests: $cpu_requests"
+      if [[ "$cpu_requests" -ge "$most_cpu_requests" ]]
+      then
+        most_cpu_requests=$cpu_requests
+        most_allocated=$node
+      fi
+  done
+
+  k $i apply -f test/e2e/plugin-config-scoring-strategy/test.yaml
+  k $i wait pod test-scoring-strategy --for=condition=PodScheduled
+
+  node_scheduled="$(k $j get pod -o json | jq -er '.items[0].spec.nodeName')"
+  k $i delete -f test/e2e/plugin-config-scoring-strategy/test.yaml
+  k $j label node --all a-
+  if [ "$node_scheduled" != "$most_allocated" ]
+  then
+      echo "delegate pod was assigned to an unexpected node. Expected node $most_allocated, got assigned to $node_scheduled"
+      exit 1
+  fi
+}
+
+if [[ "${BASH_SOURCE[0]:-}" == "${0}" ]]; then
+  plugin-config-scoring-strategy_test "${@}"
+fi

test/e2e/plugin-config-scoring-strategy/test.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-scoring-strategy
+  annotations:
+    multicluster.admiralty.io/elect: ""
+spec:
+  nodeSelector:
+    a: b
+  containers:
+    - name: pause
+      image: gcr.io/google_containers/pause
+      resources:
+        requests:
+          cpu: 1m

test/e2e/values.yaml

@@ -5,6 +5,16 @@ controllerManager:
 scheduler:
   securityContext:
     runAsUser: 1000
+  # Scoring config favors the node with the highest cpu
+  candidate:
+    pluginConfig:
+      - name: NodeResourcesFit
+        args:
+          scoringStrategy:
+            resources:
+            - name: cpu
+              weight: 10
+            type: MostAllocated
 
 postDeleteJob:
   securityContext: