# Use php as parent image
FROM ruby:2.4-slim

# Install core prerequisites
RUN apt-get update && apt-get install -y php5.6 python-pip python-dev build-essential zip software-properties-common wget

# Install awscli
RUN pip install awscli

image:
  name: xxx/adzooma-ruby:v1
  username: $DOCKER_HUB_USERNAME
  password: $DOCKER_HUB_PASSWORD

pipelines:
  tags:
    release-*:
      - step:
          script:
            - wget https://wordpress.org/latest.tar.gz
...

+ wget https://wordpress.org/latest.tar.gz
bash: wget: command not found