when:
  branch: master
  event: push

steps:
  deploy:
    image: docker:cli
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    commands:
      - |
        set -eu
        CONTAINER_ID="$(docker ps --filter publish=8091 --format '{{.ID}}' | head -n 1)"
        test -n "$CONTAINER_ID" || { echo "No running portfolio container found on port 8091"; exit 1; }
        HOST_SITE="$(docker inspect "$CONTAINER_ID" --format '{{range .Mounts}}{{if eq .Destination "/usr/share/nginx/html"}}{{.Source}}{{end}}{{end}}')"
        test -n "$HOST_SITE" || { echo "Could not resolve portfolio host webroot"; exit 1; }
        docker run --rm -v "$HOST_SITE":/target:ro alpine:3.20 sh -c "grep -q 'Keith Casko' /target/index.html" || { echo "Resolved host path does not look like casko.dev"; exit 1; }
        tar -cf - index.html homelab.html css js assets | docker run --rm -i -v "$HOST_SITE":/target alpine:3.20 sh -c 'cd /target && tar xf -'
        docker restart "$CONTAINER_ID"
        echo "Deployed commit $CI_COMMIT_SHA to $HOST_SITE via container $CONTAINER_ID"