Moved from manifest to buildx

Also, this needed to rollback node image to 18 due to nodejs/docker-node#1829
This may have implications on #3.

The image still install latest available eleventy from NPM, so each beta
build is just another latest stable. This issue is due to process
between github-release-notifier and eleventy team making a tag on github
on each beta build. This should be handled by github-release-notifier

.github/workflows/main.yml

@@ -11,16 +11,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - name: Installing dependencies
         run: |
           sudo apt update
           sudo apt install make -y
-          git clone https://github.com/estesp/manifest-tool && cd manifest-tool && git checkout v0.9.0 && sudo make && sudo make install && cd .. && rm -Rf manifest-tool
-          docker run --rm --privileged multiarch/qemu-user-static:register
-          sudo apt install -y qemu qemu-user-static qemu-user binfmt-support
           echo "${{ secrets.DOCKER_HUB_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_HUB_LOGIN }}" --password-stdin
+      - name: install buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
       - name: Build image
         run: make build
       - name: Publish image
-        run: make publish latest
+        run: make publish

.gitignore

@@ -1,4 +0,0 @@
-.build
-site
-manifest.yaml
-.Dockerfile

Dockerfile

@@ -1,12 +1,9 @@
-FROM node:alpine as builder
-
-COPY qemu-*-static /usr/bin/
-
-FROM builder
+FROM node:18-alpine
 
 ARG VERSION=v3.0.0-alpha.10
-LABEL maintainer="Jay MOULIN <https://jaymoulin.me/femtopixel/docker-eleventy> <https://twitter.com/MoulinJay>"
-LABEL version="${VERSION}"
+ARG TARGETPLATFORM
+LABEL maintainer="Jay MOULIN <https://jaymoulin.me/femtopixel/docker-eleventy>"
+LABEL version="${VERSION}-${TARGETPLATFORM}"
 
 RUN npm add -g npm @11ty/eleventy
 WORKDIR /app

Makefile

@@ -1,24 +1,9 @@
 VERSION ?= v3.0.0-alpha.10
-FULLVERSION ?= v3.0.0-alpha.10
 CACHE ?= --no-cache=1
-.PHONY: all build publish latest
-archs ?= amd64 arm64v8 arm32v6
-all: build publish latest
-qemu-arm-static:
-	cp /usr/bin/qemu-arm-static .
-qemu-aarch64-static:
-	cp /usr/bin/qemu-aarch64-static .
-build: qemu-aarch64-static qemu-arm-static
-	$(foreach arch,$(archs), \
-		cat Dockerfile | sed "s/FROM node/FROM ${arch}\/node/g" > .Dockerfile; \
-		docker build -t femtopixel/eleventy:${VERSION}-$(arch) --build-arg VERSION=${VERSION}-$(arch) ${CACHE} -f .Dockerfile .;\
-	)
-publish:
-	docker push femtopixel/eleventy -a
-	cat manifest.yml | sed "s/\$$VERSION/${VERSION}/g" > manifest.yaml
-	cat manifest.yaml | sed "s/\$$FULLVERSION/${FULLVERSION}/g" > manifest2.yaml
-	mv manifest2.yaml manifest.yaml
-	manifest-tool push from-spec manifest.yaml
-latest:
-	FULLVERSION=latest VERSION=${VERSION} make publish
 
+.PHONY: all build publish
+all: build publish
+build:
+	docker buildx build --platform linux/arm/v7,linux/arm64/v8,linux/amd64 ${PUSH} --tag femtopixel/eleventy --tag femtopixel/eleventy:${VERSION} ${CACHE} .
+publish:
+	PUSH=--push CACHE= make build