Test bitrise docker install env

  docker_test:
    steps:
    - git::https://github.com/samsao/bitrise-step-macos-install-docker.git@feature/auto-export:
        title: Install Docker
    - script@1.1.3:
        title: Build image
        inputs:
        - content: |-
            #!/bin/bash
            set -ex

            docker-machine env default

            echo ""
            echo "Extracting variables"
            docker-machine env default | while read -r line; do
              [[ "$line" == "\#*" ]] && continue

              # Prints line, using a regex, extract either key or value then assign to variable
              key=`echo "$line" | sed 's/export \(.*\)="\(.*\)"/\1/'`
              value=`echo "$line" | sed 's/export \(.*\)="\(.*\)"/\2/'`

              echo "Exporting '$key'='$value' to envman"
            done


            mkdir -p ~/app
            eval $(docker-machine env default)

            cat << EOF > ~/app/Dockerfile
            FROM node:8.1-slim
            RUN npm install -g yarn@latest
            EOF

            docker build -f ~/app/Dockerfile -t gcr.io/yuzu-175518/something:0.0.1-beta.1 ~/app
            docker login -u _json_key -p "$DOCKER_GCR_AUTH_JSON_KEY" https://gcr.io
            docker push gcr.io/yuzu-175518/something:0.0.1-beta.1