Jenkinsfile: add -x flag in all bash scripts

openvidu-test-e2e/jenkins/Jenkinsfile

@@ -18,15 +18,15 @@ node('container') {
           sh 'rm -rf kurento-java || true'
           sh 'git clone https://github.com/OpenVidu/openvidu.git'
           sh 'cd openvidu && git fetch --all && git checkout $OPENVIDU_COMMIT'
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
              if [[ $KURENTO_JAVA_COMMIT != "default" ]]; then
               git clone https://github.com/Kurento/kurento-java.git
               cd kurento-java
               git checkout -f $KURENTO_JAVA_COMMIT
               mvn clean install
             fi
           '''.stripIndent())
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             if $KURENTO_MEDIA_SERVER_DEV ; then
               echo "Upgrading KMS to dev version"
               sudo apt-get update && sudo apt-get install -y aptitude
@@ -39,7 +39,7 @@ node('container') {
         }
 
         stage('OpenVidu Browser build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             cd openvidu
             if [[ $OPENVIDU_BROWSER_COMMIT != "default" ]]; then
               git checkout -f $OPENVIDU_BROWSER_COMMIT
@@ -53,7 +53,7 @@ node('container') {
         }
 
         stage('OpenVidu Node Client build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             cd openvidu
             if [[ $OPENVIDU_NODE_CLIENT_COMMIT != "default" ]]; then
               git checkout -f $OPENVIDU_NODE_CLIENT_COMMIT
@@ -67,7 +67,7 @@ node('container') {
         }
 
         stage('OpenVidu TestApp build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             cd openvidu
             if [[ $OPENVIDU_TESTAPP_COMMIT != "default" ]]; then
               git checkout -f $OPENVIDU_TESTAPP_COMMIT
@@ -83,7 +83,7 @@ node('container') {
         }
 
         stage('OpenVidu Java Client build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             cd openvidu
             if [[ $OPENVIDU_JAVA_CLIENT_COMMIT != "default" ]]; then
               git checkout -f $OPENVIDU_JAVA_CLIENT_COMMIT
@@ -98,7 +98,7 @@ node('container') {
         }
 
         stage('OpenVidu parent build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             if [[ $KURENTO_JAVA_COMMIT != "default" ]]; then
               cd kurento-java && MVN_VERSION=$(mvn --batch-mode -q -Dexec.executable=echo -Dexec.args='${project.version}' --non-recursive exec:exec)
               cd ../openvidu && mvn --batch-mode versions:set-property -Dproperty=version.kurento -DnewVersion=$MVN_VERSION
@@ -117,7 +117,7 @@ node('container') {
         }
 
         stage('OpenVidu Server build') {
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             cd openvidu/openvidu-server/src/dashboard && npm install --unsafe-perm && npm install /opt/openvidu/openvidu-browser-*.tgz && export NG_CLI_ANALYTICS="false" && npm run build-prod
             cd ../..
             mvn --batch-mode package
@@ -130,7 +130,7 @@ node('container') {
           sh 'cd /opt/openvidu/testapp && http-server -S -p 4200 &> /opt/openvidu/testapp.log &'
           sh '/usr/bin/kurento-media-server &> /kms.log &'
           sh 'until $(curl --insecure --output /dev/null --silent http://127.0.0.1:8888/kurento); do echo "Waiting for KMS..."; sleep 1; done'
-          sh(script: '''#!/bin/bash -e
+          sh(script: '''#!/bin/bash -xe
             if [ "$DOCKER_RECORDING_VERSION" != "default" ]; then
               echo "Using custom openvidu-recording tag: $DOCKER_RECORDING_VERSION"
               java -jar -DDOMAIN_OR_PUBLIC_IP=172.17.0.1 -DOPENVIDU_SECRET=MY_SECRET -DHTTPS_PORT=4443 -DOPENVIDU_RECORDING=true -DOPENVIDU_RECORDING_CUSTOM_LAYOUT=/opt/openvidu/test-layouts -DOPENVIDU_RECORDING_VERSION=$DOCKER_RECORDING_VERSION -DOPENVIDU_WEBHOOK=true -DOPENVIDU_WEBHOOK_ENDPOINT=http://127.0.0.1:7777/webhook /opt/openvidu/openvidu-server-*.jar &> openvidu-server.log &
@@ -144,7 +144,7 @@ node('container') {
 
         stage ('OpenVidu E2E tests') {
           try {
-            sh(script: '''#!/bin/bash -e
+            sh(script: '''#!/bin/bash -xe
               cd openvidu
               if [[ $OPENVIDU_TESTE2E_COMMIT != "default" ]]; then
                 git checkout -f $OPENVIDU_TESTE2E_COMMIT