Add buildx workflow for building + uploading image to Docker Hub

.dockerignore

@@ -1,3 +1,7 @@
 .git
+.github
 *.env
 cli
+out
+node_modules
+uploads

.github/workflows/buildx.yml

@@ -0,0 +1,59 @@
+name: buildx
+
+on:
+  workflow_run:
+    workflows: ["go-tests", "web-tests", "vuln-scan"]
+    branches: [main]
+    types:
+      - completed
+  push:
+    tags:
+      - '*'
+
+jobs:
+  on-success:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Wait for tests to succeed
+        if: ${{ github.event.workflow_run.conclusion != 'success' && startsWith(github.ref, 'refs/tags') != true }}
+        run: exit 1
+      - name: checkout code
+        uses: actions/checkout@v2
+      - name: install buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          version: latest
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+      - name: Login to ghcr.io
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: build and push the image
+        if: startsWith(github.ref, 'refs/heads/main') && github.actor == 'benbusby'
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+          docker buildx ls
+          docker buildx build --push \
+            --tag benbusby/yeetfile:latest \
+            --platform linux/amd64,linux/arm/v7,linux/arm64 .
+          docker buildx build --push \
+            --tag ghcr.io/benbusby/yeetfile:latest \
+            --platform linux/amd64,linux/arm/v7,linux/arm64 .
+      - name: build and push tag
+        if: startsWith(github.ref, 'refs/tags')
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+          docker buildx ls
+          docker buildx build --push \
+            --tag benbusby/yeetfile:${GITHUB_REF#refs/*/v}\
+            --platform linux/amd64,linux/arm/v7,linux/arm64 .
+          docker buildx build --push \
+            --tag ghcr.io/benbusby/yeetfile:${GITHUB_REF#refs/*/v}\
+            --platform linux/amd64,linux/arm/v7,linux/arm64

Dockerfile

@@ -25,7 +25,6 @@ FROM alpine:latest
 WORKDIR /app
 COPY --from=builder /app/yeetfile-server /app
 RUN chmod +x /app/yeetfile-server
-RUN apk add --update curl
 EXPOSE 8090
 
 CMD ["/app/yeetfile-server"]