name: Build Base Image

on:
  push:
    branches:
      - main
    paths:
      - 'Dockerfile'
  schedule:
    - cron: "@monthly"
  workflow_dispatch:

jobs:
  build:
    name: Build Base Image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4

      - name: Login to registry
        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4
        with:
          registry: ${{ vars.REGISTRY_URL }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Build and push base image
        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ vars.REGISTRY_URL }}/${{ secrets.REGISTRY_USER }}/coder-base:latest