Kafka tests (#944)

A simple test for Kafka integration which runs locally provided cluster has Kafka and Fission install has Kafka integratiom enabled (mqtrigger-kafka deployment present).

test/tests/mqtrigger/kafka/test_kafka.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+#test:disabled
+
+# Create a function and trigger it using Kafka
+# This test requires Kafka & MQ-Kafka component of Fission installed in the cluster
+set -euo pipefail
+set +x
+
+nodeenv="node-kafka"
+goenv="go-kafka"
+producerfunc="producer-func"
+consumerfunc="consumer-func"
+
+log() {
+    echo $1
+}
+export -f log
+
+test_mqmessage() {
+    echo "Checking for valid response"
+
+    while true; do
+      response0=$(kubectl -nfission logs -l=messagequeue=kafka)
+      echo $response0 | grep -i $1
+      if [[ $? -eq 0 ]]; then
+        break
+      fi
+      sleep 1
+    done
+}
+export -f test_mqmessage 
+
+waitBuild() {
+    log "Waiting for builder manager to finish the build"
+    
+    while true; do
+      kubectl --namespace default get packages $1 -o jsonpath='{.status.buildstatus}'|grep succeeded
+      if [[ $? -eq 0 ]]; then
+          break
+      fi
+      log "Waiting for build to finish"
+      sleep 1
+    done
+}
+export -f waitBuild
+
+cleanup() {
+    log "Cleaning up..."
+    fission env delete --name ${goenv} || true
+    fission env delete --name ${nodeenv} || true
+    fission fn delete --name ${producerfunc} || true
+    fission fn delete --name ${consumerfunc} || true
+}
+export -f cleanup
+
+DIR=$(dirname $0)
+
+log "Creating ${nodeenv} environment"
+fission env create --name ${nodeenv} --image fission/node-env
+trap cleanup EXIT
+
+log "Creating ${goenv} environment"
+fission env create --name ${goenv} --image fission/go-env --builder fission/go-builder
+
+log "Creating package for Kafka producer"
+pushd $DIR/kafka_pub
+zip -qr kafka.zip * 
+pkgName=$(fission package create --env ${goenv} --src kafka.zip|cut -f2 -d' '| tr -d \')
+
+log "pkgName=${pkgName}"
+popd
+
+gtimeout 60s bash -c "waitBuild $pkgName"
+log "Package ${pkgName} created"
+
+log "Creating function ${consumerfunc}"
+fission fn create --name ${consumerfunc} --env ${nodeenv} --code hellokafka.js 
+
+log "Creating function ${producerfunc}"
+fission fn create --name ${producerfunc} --env ${goenv} --pkg ${pkgName} --entrypoint Handler
+
+log "Creating "
+fission mqt create --name kafkatest --function ${consumerfunc} --mqtype kafka --topic testtopic --resptopic resptopic
+
+fission fn test --name ${producerfunc}
+
+log "Testing pool manager function"
+gtimeout 60 bash -c "test_mqmessage 'testvalue'"