Fix CI images/services

image: docker

services:

    - docker:dind

stages:

    - build

    - release

before_script:

    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY

variables:

    DOCKER_HOST: tcp://docker:2375

    DOCKER_TLS_CERTDIR: ""

    IMAGE_TAG_UNIQUE: $CI_REGISTRY_IMAGE:$CI_COMMIT_BRANCH-$CI_COMMIT_REF_SLUG

    IMAGE_TAG_BRANCH: $CI_REGISTRY_IMAGE:$CI_COMMIT_BRANCH

    IMAGE_TAG_UNIQUE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME-$CI_COMMIT_SHORT_SHA

    IMAGE_TAG_BRANCH: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME

    IMAGE_TAG_LATEST: $CI_REGISTRY_IMAGE:latest

before_script:

    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY

build:

    stage: build

    tags:

        - docker build

    image: docker

    services:

        - docker:dind

    script:

        - docker build --pull -t $IMAGE_TAG_UNIQUE -f Dockerfile $CI_PROJECT_DIR

        - docker push $IMAGE_TAG_UNIQUE

release:

    stage: release

    tags:

        - docker

    script:

        - docker pull $IMAGE_TAG_UNIQUE

        - docker tag $IMAGE_TAG_UNIQUE $IMAGE_TAG_LATEST