Switch Docker build CI config to our default

# Official docker image.

image: docker:latest

variables:

  STORAGE_DRIVER: "vfs"

  BUILDAH_FORMAT: "docker"

  DOCKER_DRIVER: overlay2

# Docker in Docker Service

services:

  - docker:dind

default:

  image: "quay.io/buildah/stable"

before_script:

    - buildah login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY

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

  - source environment

    - buildah pull $BASE

    - >

        buildah bud

        --pull

        --build-arg "BASE=$BASE"

        --build-arg "LDAP_PLUGIN_URL=$LDAP_PLUGIN_URL"

        --build-arg login_text="${LOGIN_TEXT}"

        --build-arg collab_text="${COLLAB_TEXT}"

        --build-arg admin_is_sysadmin="${ADMIN_IS_SYSADMIN}"

        -t "$CI_REGISTRY_IMAGE" .

build-main:

  script:

    - buildah tag "$CI_REGISTRY_IMAGE" "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - buildah push "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG" "docker://$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - docker build --no-cache --pull -t "$CI_REGISTRY_IMAGE" .

    - docker tag "$CI_REGISTRY_IMAGE" "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - docker push "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - docker push "$CI_REGISTRY_IMAGE"

  only:

    - main

build:

  script:

    - buildah tag "$CI_REGISTRY_IMAGE" "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - buildah push "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG" "docker://$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"

    - docker build --no-cache --pull -t "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG" .

    - docker push "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"

  except:

    - main