Bitbucket Pipeline to Ubuntu server via bash script

bitbucket-pipelines.yml

image: atlassian/default-image:2

pipelines:
  branches:
    master:
      - step:
          deployment: production
          script:
            - cat ./deploy.sh | ssh $HOST_USER@$HOST_URL
            - echo "Deploy step finished"

deploy.sh

#!/bin/bash
echo "Deploy script started"
cd ~/web
git checkout master
git pull origin master
composer install
echo "Deploy script finished execution"