Add CI build

.github/workflows/build.yml

@@ -0,0 +1,56 @@
+name: build
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - v*
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_BASE: ghcr.io/${{ github.repository_owner }}/node-localnet-bitcoin-sidecar
+    outputs:
+      IMAGE: ${{ fromJson(steps.build.outputs.metadata)['image.name'] }}
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Generate version
+        run: |
+          # Default tag as commit SHA
+          VERSION=${GITHUB_SHA::7}
+          # Use tag name if it's a tag push
+          if [ "$GITHUB_EVENT_NAME" == "push" ] && [ "$GITHUB_REF_TYPE" == "tag" ]; then
+            VERSION=${GITHUB_REF_NAME}
+          fi
+          echo "VERSION=$VERSION" >> $GITHUB_ENV
+
+      - name: Build and push (base)
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          target: base
+          provenance: mode=max
+          tags: "${{ env.IMAGE_BASE }}:${{ env.VERSION }}"
+          cache-from: type=registry,ref=${{ env.IMAGE_BASE }}:buildcache
+          cache-to: type=registry,ref=${{ env.IMAGE_BASE }}:buildcache,mode=max

Dockerfile

@@ -1,12 +1,12 @@
-FROM node:18.20.4 as builder
+FROM node:20-alpine AS builder
 
 WORKDIR /home/zeta/node
 
-COPY bitcoin-sidecar/js/* .
+COPY js/* .
 
 RUN npm install && npm install typescript -g && tsc
 
-FROM node:alpine
+FROM node:20-alpine
 
 COPY --from=builder /home/zeta/node/dist ./dist
 COPY --from=builder /home/zeta/node/node_modules ./node_modules