Initial commit

.github/workflows/docker-image.yml

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+name: Publish Docker image
+on:
+  push:
+    branches: main
+    tags:
+        - '*'
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to GitHub Packages
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v2
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ghcr.io/wbrawner/caddy-porkbun
+          tags: |
+            type=schedule
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM caddy:2-builder-alpine AS builder
+
+RUN xcaddy build --with github.com/caddy-dns/porkbun@v0.1.4
+
+FROM caddy:2-alpine
+
+COPY --from=builder /usr/bin/caddy /usr/bin/caddy

README.md

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+# Caddy with Porkbun DNS Plugin
+
+## Usage
+
+Make sure to set the `PORKBUN_API_KEY` and `PORKBUN_API_SECRET_KEY` environment
+variables to the corresponding values.
+
+Then add the appropriate Caddy json config:
+
+```
+{
+  "module": "acme",
+  "challenges": {
+    "dns": {
+      "provider": {
+        "name": "porkbun",
+        "api_key": "{env.PORKBUN_API_KEY}",
+	    "api_secret_key": "{env.PORKBUN_API_SECRET_KEY}"
+      }
+    }
+  }
+}
+```
+
+or Caddyfile equivalent:
+
+```
+tls {
+  dns porkbun {
+    api_key {env.PORKBUN_API_KEY}
+	api_secret_key {env.PORKBUN_API_SECRET_KEY}
+  }
+}
+```