adjust jenkins

Jenkinsfile

@@ -3,6 +3,10 @@ node {
     stage('Checkout') {
       checkout scm
     }
+    stage('Initialize'){
+      def dockerHome = tool 'myDocker'
+      env.PATH = "${dockerHome}/bin:${env.PATH}"
+    }
     stage('Environment') {
       sh 'git --version'
       echo "Branch: master"