arm64 docker image builds

.github/workflows/docker-publish.yml

@@ -27,6 +27,13 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ env.OCI_TOKEN }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Extract Docker metadata
         id: meta
         uses: docker/metadata-action@v5
@@ -40,3 +47,4 @@ jobs:
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64,linux/arm64

Dockerfile

@@ -3,21 +3,35 @@ FROM golang:1.25 AS builder
 # build dependencies
 RUN apt update && apt install -y upx
 
-RUN curl -sLO https://github.com/tailwindlabs/tailwindcss/releases/download/v4.1.13/tailwindcss-linux-x64
+ARG TARGETARCH
-RUN chmod +x tailwindcss-linux-x64
+RUN set -eux; \
-RUN mv tailwindcss-linux-x64 /usr/local/bin/tailwindcss
+    echo "Building for architecture: ${TARGETARCH}"; \
+    case "${TARGETARCH}" in \
+        "amd64") \
+            arch_suffix='x64' ;; \
+        "arm64") \
+            arch_suffix='arm64' ;; \
+        *) \
+            echo "Unsupported architecture: ${TARGETARCH}" && exit 1 ;; \
+    esac; \
+    curl -sLO "https://github.com/tailwindlabs/tailwindcss/releases/download/v4.1.13/tailwindcss-linux-${arch_suffix}"; \
+    mv "tailwindcss-linux-${arch_suffix}" /usr/local/bin/tailwindcss; \
+    chmod +x /usr/local/bin/tailwindcss;
+    
+
+RUN file /usr/local/bin/tailwindcss
 
 RUN go install github.com/juls0730/zqdgr@latest
 
 WORKDIR /app
 
-ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+ARG TARGETARCH
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH}
 
 COPY go.mod go.sum ./
 RUN go mod download
 COPY . .
 
-
 RUN zqdgr build
 RUN upx passport