stoat_role_bot/.gitea/workflows/docker.yml

# Build and push Stoat Role Bot image to Gitea Container Registry on push to main.
#
# Setup in Gitea:
# 1. Repository → Settings → Secrets: add REGISTRY_USER and REGISTRY_PASSWORD
#    (use your Gitea username and password, or a Personal Access Token with package write).
# 2. Optional: set variable REGISTRY_IMAGE to e.g. mygitea.com/john/stoat-role-bot
#    (default: server_url/owner/repo name).
#
# On your NAS: pull this image and run; use Watchtower or a cron job to pull:latest and restart.

name: Build and Push Image

on:
  push:
    branches: [main, master]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Image tag and registry host
        id: meta
        run: |
          URL="${{ gitea.server_url }}"
          REG="${URL#*://}"
          OWNER="${{ gitea.repository.owner.user_name }}"
          [ -z "$OWNER" ] && OWNER="${{ gitea.repository.owner.login }}"
          [ -z "$OWNER" ] && OWNER="${GITEA_REPOSITORY_OWNER:-}"
          echo "tag=${REG}/${OWNER}/stoat-role-bot:latest" >> $GITHUB_OUTPUT
          echo "registry=${REG}" >> $GITHUB_OUTPUT
        env:
          GITEA_SERVER_URL: ${{ gitea.server_url }}
          GITEA_REPOSITORY_OWNER: ${{ gitea.repository.owner.user_name }}

      - name: Log in to Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ steps.meta.outputs.registry }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tag }}
          cache-from: type=gha
          cache-to: type=gha,mode=max