e2e test helper script (kubernetes-sigs#2246)

* Added helper script to run e2e tests

Avoid abrupt script termination if there is an exception in ginkgo tests

Fixed logging

minor change

* renamed file
Addressed PR comments

* removed unnecessary code

* Add VPC_ID as its needed to run ginkgo tests

* fixed typo

* Cordon off windows nodes

* Add timeout for deletion of resources

Author: cgchinmay

test/e2e/run-canary-test.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+
+# This script runs e2e tests on the AWS Load Balancer Controller
+
+set -e
+
+SECONDS=0
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+echo "Running AWS Load Balancer Controller e2e tests with the following variables
+KUBE CONFIG: $KUBE_CONFIG_PATH
+CLUSTER_NAME: $CLUSTER_NAME
+REGION: $REGION
+OS_OVERRIDE: $OS_OVERRIDE"
+
+function toggle_windows_scheduling(){
+  schedule=$1
+  nodes=$(kubectl get nodes -l kubernetes.io/os=windows | tail -n +2 | cut -d' ' -f1)
+  for n in $nodes
+  do
+    kubectl $schedule $n
+  done
+}
+
+if [[ -z "${OS_OVERRIDE}" ]]; then
+  OS_OVERRIDE=linux
+fi
+
+GET_CLUSTER_INFO_CMD="aws eks describe-cluster --name $CLUSTER_NAME --region $REGION"
+
+if [[ -z "${ENDPOINT}" ]]; then
+  CLUSTER_INFO=$($GET_CLUSTER_INFO_CMD)
+else
+  CLUSTER_INFO=$($GET_CLUSTER_INFO_CMD --endpoint $ENDPOINT)
+fi
+
+echo "Cordon off windows nodes"
+toggle_windows_scheduling "cordon"
+
+VPC_ID=$(echo $CLUSTER_INFO | jq -r '.cluster.resourcesVpcConfig.vpcId')
+ACCOUNT_ID=$(aws sts get-caller-identity | jq -r '.Account')
+
+echo "VPC ID: $VPC_ID"
+
+eksctl utils associate-iam-oidc-provider \
+    --region $REGION \
+    --cluster $CLUSTER_NAME \
+    --approve
+
+echo "Creating AWSLoadbalancerController IAM Policy"
+curl -o iam-policy.json https://raw.githubusercontent.com/kubernetes-sigs/aws-load-balancer-controller/v2.2.1/docs/install/iam_policy.json
+
+aws iam create-policy \
+    --policy-name AWSLoadBalancerControllerIAMPolicy \
+    --policy-document file://iam-policy.json || true
+
+echo "Creating IAM serviceaccount"
+eksctl create iamserviceaccount \
+--cluster=$CLUSTER_NAME \
+--namespace=kube-system \
+--name=aws-load-balancer-controller \
+--attach-policy-arn=arn:aws:iam::$ACCOUNT_ID:policy/AWSLoadBalancerControllerIAMPolicy \
+--override-existing-serviceaccounts \
+--approve || true
+
+echo "Update helm repo eks"
+helm repo add eks https://aws.github.io/eks-charts
+
+helm repo update
+
+echo "Install TargetGroupBinding CRDs"
+kubectl apply -k "github.com/aws/eks-charts/stable/aws-load-balancer-controller//crds?ref=master"
+
+echo "Install aws-load-balancer-controller"
+helm upgrade -i aws-load-balancer-controller eks/aws-load-balancer-controller -n kube-system --set clusterName=$CLUSTER_NAME --set serviceAccount.create=false --set serviceAccount.name=aws-load-balancer-controller
+
+#Start the test
+echo "Starting the ginkgo test suite" 
+
+(cd $SCRIPT_DIR && CGO_ENABLED=0 GOOS=$OS_OVERRIDE ginkgo -v -r --timeout 60m --failOnPending -- --kubeconfig=$KUBE_CONFIG_PATH --cluster-name=$CLUSTER_NAME --aws-region=$REGION --aws-vpc-id=$VPC_ID || true)
+
+echo "Delete aws-load-balancer-controller"
+helm delete aws-load-balancer-controller -n kube-system --timeout=10m || true
+
+echo "Delete iamserviceaccount"
+eksctl delete iamserviceaccount --name aws-load-balancer-controller --namespace kube-system --cluster $CLUSTER_NAME --timeout=10m || true
+
+echo "Delete TargetGroupBinding CRDs"
+kubectl delete -k "github.com/aws/eks-charts/stable/aws-load-balancer-controller//crds?ref=master" --timeout=10m || true
+
+echo "Uncordon windows nodes"
+toggle_windows_scheduling "uncordon"
+
+echo "Successfully finished the test suite $(($SECONDS / 60)) minutes and $(($SECONDS % 60)) seconds"