title: unable to deploy docker application in elasticbeanstalk using travis ci
body: <p>I am trying to deploy docker application in AWS elastic beanstalk from travis CI.</p>
  
  <p>Travis CI not showing error but when i am deploying the application in elastic beanstalk it showing below error in the logs.</p>
  
  <p>2020/04/27 02:03:14.074446 [WARN] failed to execute command: docker pull node:alpine as builder, retrying...</p>
  
  <p>2020/04/27 02:03:14.074466 [INFO] Running command /bin/sh -c docker pull node:alpine as builder</p>
  
  <p><strong>2020/04/27 02:03:14.118181 [ERROR] "docker pull" requires exactly 1 argument.</strong></p>
  
  <p><strong>2020/04/27 02:03:14.118209 [ERROR] An error occurred during execution of command [app-deploy] - [Docker Specific Build Application]. Stop running the command. Error: failed to pull docker image: Command /bin/sh -c docker pull node:alpine as builder failed with error exit status 1. Stderr:"docker pull" requires exactly 1 argument.
  See 'docker pull --help'.</strong></p>
  
  <p>below is my github repository kindly check if possible and let me know if i am doing something wrong.</p>
  
  <p><a href="https://github.com/abtayshete06/docker-react.git" rel="nofollow noreferrer">https://github.com/abtayshete06/docker-react.git</a> </p>