feat: migrate to buildah

---

variables:

  DOCKER_DRIVER: "overlay2"

  DOCKER_HOST: "tcp://localhost:2375/"

  DOCKER_TLS_CERTDIR: ""

  STORAGE_DRIVER: "overlay"

build-image:

  stage: "build"

  image: "docker:28.2.2"

  services:

    - name: "docker:28.2.2-dind"

      command: ["--tls=false"]

stages:

  - "build"

image-build:

  stage: "image-build"

  image: "quay.io/buildah/stable:latest"

  script:

    # login to container registry

    - "echo $CR_PASSWORD | docker login $CR_HOSTNAME -u $CR_USERNAME --password-stdin"

    - "echo $CR_PASSWORD | buildah login -u $CR_USERNAME --password-stdin $CR_HOSTNAME"

    # build observium-pe image

    - "docker build -t roundcube -f Dockerfile.linux.amd64 ."

    # build image

    - "buildah bud -t roundcube -f Dockerfile.linux.amd64 ."

    # add tags to image

    - "docker image tag roundcube cr.simoncor.net/siempie/roundcube:latest"

    - "buildah tag roundcube cr.simoncor.net/siempie/roundcube:latest"

    # push image to dockerhub.

    - "docker push --all-tags cr.simoncor.net/siempie/roundcube"

    - "buildah push cr.simoncor.net/siempie/roundcube:latest"

    # logout from container registry

    - "docker logout $CR_HOSTNAME"

    - "buildah logout $CR_HOSTNAME"