ci: speed up build with crystal arm64 binary

.github/workflows/publish.yml

@@ -22,9 +22,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
 
@@ -42,12 +39,16 @@ jobs:
 
       - name: Build and push platform image
         uses: docker/build-push-action@v5
+        env:
+          CRYSTAL_WORKERS: ${{ matrix.platform == 'linux/amd64' && 4 || 2 }}
         with:
           context: .
           platforms: ${{ matrix.platform }}
           push: true
           tags: |
             sjdonado/bit:${{ github.event_name == 'release' && steps.version.outputs.version || 'latest' }}-${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
+          build-args: |
+            TARGETARCH=${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
 

Dockerfile

@@ -1,32 +1,41 @@
-FROM alpine:edge AS build
+FROM debian:bookworm-slim AS build
 
+ARG TARGETARCH
 ENV ENV=production
 WORKDIR /usr/src/app
 
-RUN apk update && apk add --no-cache \
+RUN apt-get update && apt-get install -y \
+    curl \
+    gnupg \
+    ca-certificates \
+    && mkdir -p /etc/apt/keyrings \
+    && curl -fsSL https://packagecloud.io/84codes/crystal/gpgkey | gpg --dearmor > /etc/apt/trusted.gpg.d/84codes_crystal.gpg \
+    && echo "deb [signed-by=/etc/apt/trusted.gpg.d/84codes_crystal.gpg] https://packagecloud.io/84codes/crystal/debian/ bookworm main" > /etc/apt/sources.list.d/84codes_crystal.list
+
+RUN apt-get update && apt-get install -y \
     crystal \
-    shards \
-    yaml-dev \
-    sqlite-dev \
-    openssl-dev
+    libssl-dev \
+    libyaml-dev \
+    libsqlite3-dev \
+    libevent-dev \
+    && rm -rf /var/lib/apt/lists/*
 
 COPY . .
 
-RUN shards install
-RUN shards build --release --no-debug
+RUN shards install --production
+RUN shards build --release --no-debug --progress --stats
 
-FROM alpine:edge AS runtime
+FROM debian:bookworm-slim AS runtime
 
 ENV ENV=production
 WORKDIR /usr/src/app
 
-RUN apk add --no-cache \
-    gc \
-    pcre2 \
-    libevent \
-    yaml \
-    sqlite-libs \
-    openssl
+RUN apt-get update && apt-get install -y \
+    libssl3 \
+    libyaml-0-2 \
+    libsqlite3-0 \
+    libevent-2.1-7 \
+    && rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p sqlite