Add functional tests for lightweight informer (#60)

* Functional tests

* Update .travis.yml

* Pass image tag

* Update resourceBudgetTest.sh

* Delete kind-hub.config.yaml

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* Test failure path

* Fix test

* Update .travis.yml

* Fix in travis

* Try different path

* try to resolve permission denied

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

* cleanup

* Test fail path

* Update resourceBudgetTest.sh

* finalize

* Update resourceBudgetTest.sh

* Update resourceBudgetTest.sh

Co-authored-by: Disaiah Bennett <lavontae.bennett@gmail.com>

.travis.yml

@@ -72,12 +72,13 @@ jobs:
         - make sonar/go 
         - make security/scans
 
-    # - stage: test-e2e
-    #   name: "Run e2e tests"
-    #   if: type = pull_request
-    #   script:
-    #     # Run e2e tests.
-    #     - make component/test/e2e
+    - stage: test-e2e
+      name: "Run e2e tests"
+      if: type = pull_request
+      script:
+        # Run e2e tests.
+        - make component/pull
+        - make component/test/e2e
 
     - stage: release-ff
       name: "Push commits to current release branch"

build/run-e2e-tests.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
 
 echo " > Running run-e2e-test.sh"
+set -e
+sh tests/e2e/runTests.sh $1
+
 exit 0

tests/e2e/kind/kind-collector-test.config.yaml

@@ -0,0 +1,14 @@
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+  extraPortMappings:
+  - containerPort: 80
+    hostPort: 80
+    listenAddress: "0.0.0.0"
+  - containerPort: 443
+    hostPort: 443
+    listenAddress: "0.0.0.0"
+  - containerPort: 6443
+    hostPort: 32806
+    listenAddress: "0.0.0.0"

tests/e2e/resourceBudgetTest.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+# Copyright (c) 2020 Red Hat, Inc.
+
+echo "=== TEST: Memory and CPU budget ===\n"
+
+CPU_BUDGET=1.00
+MEM_BUDGET=15.00
+if [ $1 ]; then
+    SEARCH_COLLECTOR_IMAGE=$1
+else
+    SEARCH_COLLECTOR_IMAGE="search-collector"
+fi
+KUBECONFIG_PATH=${PWD}/.kubeconfig-kind
+
+
+create_kind_cluster() { 
+    WORKDIR=`pwd`
+    if [ ! -f /usr/local/bin/kind ]; then
+    	echo "Installing kind from (https://kind.sigs.k8s.io/)."
+
+    	# uname returns your operating system name
+    	# uname -- Print operating system name
+    	# -L location, lowercase -o specify output name, uppercase -O Write  output to a local file named like the remote file we get  
+    	curl -Lo ./kind "https://kind.sigs.k8s.io/dl/v0.7.0/kind-$(uname)-amd64"
+    	chmod +x ./kind
+    	sudo cp ./kind /usr/local/bin/kind
+    fi
+    # Delete kind cluster collector-test if it exists
+    kind delete cluster --name collector-test --quiet || true
+
+    echo "Starting kind cluster: collector-test"
+    rm -rf $KUBECONFIG_PATH
+    kind create cluster \
+        --kubeconfig $KUBECONFIG_PATH \
+        --name collector-test \
+        --config ${WORKDIR}/tests/e2e/kind/kind-collector-test.config.yaml \
+        --quiet
+    chmod +r $KUBECONFIG_PATH
+}
+
+run_container() {
+    docker run \
+        -e CLUSTER_NAME="local-cluster" \
+        -e DEPLOYED_IN_HUB="true" \
+        -e KUBECONFIG=".kubeconfig" \
+        -e KUBERNETES_SERVICE_HOST="https://127.0.0.1" \
+        -e KUBERNETES_SERVICE_PORT="63481" \
+        -v $PWD/sslcert:/sslcert  \
+        -v $KUBECONFIG_PATH:/.kubeconfig \
+        --network="host" \
+        --name search-collector \
+        ${SEARCH_COLLECTOR_IMAGE} &
+
+    echo "Waiting 90s for search-collector container to start."
+    sleep 90
+    OUTPUT=$(docker stats --no-stream --format "{{.MemUsage}} : {{.CPUPerc}}" search-collector) 
+    MEM=$(echo $OUTPUT | awk '{print $1}' | sed 's/[^0-9\.]*//g')
+    CPU=$(echo $OUTPUT | awk '{print $5}' | sed 's/[^0-9\.]*//g')
+
+    echo "Stopping and removing search-collector container."
+    docker stop search-collector
+    docker rm search-collector
+    rm -rf $KUBECONFIG_PATH
+    kind delete cluster --name collector-test --quiet
+}
+
+verify_mem_cpu() {
+    MEM_TEST=$(awk 'BEGIN {print ('$MEM' >= '$MEM_BUDGET')}')
+    CPU_TEST=$(awk 'BEGIN {print ('$CPU' >= '$CPU_BUDGET')}')
+
+    if [ "$MEM_TEST" -eq 1 ]; then
+        echo "MEMORY budget exceeded."
+        echo "\tUsed:   $MEM"
+        echo "\tBudget: $MEM_BUDGET"
+    fi
+    if [ "$CPU_TEST" -eq 1 ]; then
+        echo "CPU budget exceeded."
+        echo "\tUsed:   $CPU"
+        echo "\tBudget: $CPU_BUDGET"
+    fi
+    if [ "$MEM_TEST" -eq 1 ] || [ "$CPU_TEST" -eq 1 ]; then
+        echo "TEST FAILED."
+        exit 1
+    fi
+}
+
+create_kind_cluster
+run_container
+verify_mem_cpu
+
+echo "\nTEST PASSED."

tests/e2e/runTests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# Copyright (c) 2020 Red Hat, Inc.
+
+sh tests/e2e/resourceBudgetTest.sh $1