monmap/.github/workflows/deploy.yml at main · monashcoding/monmap · GitHub

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name: Build & publish image

# Build the webapp Docker image OFF the Oracle box (GitHub's runners do the
# heavy 2-4GB build) and push it to GHCR. Dokploy then just *pulls* the
# prebuilt image and runs it — so three apps can share one Oracle box
# without their builds fighting over RAM/CPU. See docs/deploy.md.

on:
  push:
    branches: [main]
    # Only rebuild when something that affects the image changes.
    paths:
      - "packages/webapp/**"
      - "packages/db/**"
      - "packages/scraper/**"
      - "Dockerfile"
      - ".dockerignore"
      - "pnpm-lock.yaml"
      - "pnpm-workspace.yaml"
      - "package.json"
      - ".github/workflows/deploy.yml"
  workflow_dispatch: {} # allow manual "Run workflow"

env:
  IMAGE: ghcr.io/${{ github.repository }} # ghcr.io/monashcoding/monmap

jobs:
  build:
    # Native ARM64 runner — Oracle Ampere is arm64, and this is free on
    # public repos. Avoids ~5x slower QEMU cross-compilation.
    runs-on: ubuntu-24.04-arm
    permissions:
      contents: read
      packages: write # push to GHCR
    steps:
      - uses: actions/checkout@v4

      - uses: docker/setup-buildx-action@v3

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Image metadata (tags)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE }}
          tags: |
            type=raw,value=latest
            type=sha,format=long

      - name: Build & push (linux/arm64)
        uses: docker/build-push-action@v6
        with:
          context: . # monorepo root — pnpm needs the whole workspace
          file: ./Dockerfile
          platforms: linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          # NEXT_PUBLIC_* are inlined into the client bundle at build time.
          # They're all browser-public values, so configure them as repo
          # *Variables* (Settings → Secrets and variables → Actions →
          # Variables). Fallbacks keep the build working before you set them.
          build-args: |
            NEXT_PUBLIC_SITE_URL=${{ vars.NEXT_PUBLIC_SITE_URL || 'https://monmap.monashcoding.com' }}
            NEXT_PUBLIC_AUTH_URL=${{ vars.NEXT_PUBLIC_AUTH_URL || 'https://auth.monashcoding.com' }}
            NEXT_PUBLIC_POSTHOG_HOST=${{ vars.NEXT_PUBLIC_POSTHOG_HOST || 'https://us.i.posthog.com' }}
            NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN=${{ vars.NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN }}

      # Tell Dokploy to pull the new image and redeploy. Create the app in
      # Dokploy with provider "Docker" pointing at ghcr.io/monashcoding/
      # monmap:latest, then copy its deploy webhook URL into the repo secret
      # DOKPLOY_DEPLOY_WEBHOOK. Skipped automatically until that secret exists.
      - name: Trigger Dokploy redeploy
        env:
          # Secrets can't be used directly in `if:`, so hoist into env first.
          DOKPLOY_DEPLOY_WEBHOOK: ${{ secrets.DOKPLOY_DEPLOY_WEBHOOK }}
        if: ${{ env.DOKPLOY_DEPLOY_WEBHOOK != '' }}
        run: curl -fsSL -X POST "$DOKPLOY_DEPLOY_WEBHOOK"