Docker deployment using Bitbucket Pipelines and Heroku

bitbucket-pipelines.yml

pipelines:
  default:
    - step:
        name: build and publish docker image
        services:
          - docker
        caches:
          - docker
        script:
          - docker build -t $APP_NAME .
          - docker login --username=_ --password=$HEROKU_TOKEN registry.heroku.com
          - docker tag $APP_NAME registry.heroku.com/$APP_NAME/web
          - docker push registry.heroku.com/$APP_NAME/web
          - docker inspect registry.heroku.com/$APP_NAME/web --format={{.Id}} > WEB_DOCKER_IMAGE_ID
        artifacts:
          - WEB_DOCKER_IMAGE_ID
    - step:
        name: deploy-to-heroku
        deployment: staging
        script:
          - export WEB_DOCKER_IMAGE_ID=$(cat WEB_DOCKER_IMAGE_ID)
          - ./deploy.sh
          - echo "Done..."

options:
  docker: true

deploy.sh

#!/usr/bin/env bash

set -eu

curl -n -X PATCH https://api.heroku.com/apps/$APP_NAME/formation \
  -d '{
  "updates": [
    {
      "type": "web",
      "docker_image": "'"$WEB_DOCKER_IMAGE_ID"'"
    }
  ]
}' \
  -H "Content-Type: application/json" \
  -H "Accept: application/vnd.heroku+json; version=3.docker-releases" \
  -H "Authorization: Bearer $HEROKU_TOKEN"