Simple example of CI to build a Docker container and push it to Amazon ECR

gitlab-ci.yml

# Simple example of CI to build a Docker container and push it to Amazon ECR
variables:
  DOCKER_REGISTRY: 000000000000.dkr.ecr.eu-west-1.amazonaws.com
  AWS_DEFAULT_REGION: eu-west-1
  APP_NAME: ecr_demo
  DOCKER_HOST: tcp://docker:2375
  DOCKER_DRIVER: overlay2
  DOCKER_TLS_CERTDIR: ""

publish:
  stage: build
  image: 
    name: docker:latest
  services:
    - docker:19-dind
  before_script:
    - apk add --no-cache curl jq python3 py3-pip
    - pip install awscli
    - aws ecr get-login-password | docker login --username AWS --password-stdin $DOCKER_REGISTRY
    - aws --version
    - docker info
    - docker --version
  script:
    - docker build -t $DOCKER_REGISTRY/$APP_NAME:$CI_PIPELINE_IID .
    - docker push $DOCKER_REGISTRY/$APP_NAME:$CI_PIPELINE_IID

#Source https://devops.cisel.ch/push-your-docker-containers-from-gitlab-to-amazon-ecr