s3 patch

.github/workflows/.e2e-run.yml

@@ -50,7 +50,7 @@ jobs:
             buildkit_image: moby/buildkit:buildx-stable-1
           -
             buildx_version: https://github.com/docker/buildx.git#master
-            buildkit_image: moby/buildkit:master
+            buildkit_image: crazymax/buildkit:s3patch
     steps:
       -
         name: Checkout
@@ -76,7 +76,7 @@ jobs:
             } else if (inpCache === 's3') {
               const cacheName = inpSlug.replace(/[^a-zA-Z0-9]/g, '-').toLowerCase();
               core.exportVariable('CACHE_FROM', `type=s3,region=us-east-2,bucket=buildkit-s3-cache-test,name=${cacheName}`);
-              core.exportVariable('CACHE_TO', `type=s3,region=us-east-2,bucket=buildkit-s3-cache-test,name=${cacheName}`);
+              core.exportVariable('CACHE_TO', `type=s3,region=us-east-2,bucket=buildkit-s3-cache-test,name=${cacheName},mode=max`);
             }
       -
         name: Set up BuildKit config
@@ -138,7 +138,8 @@ jobs:
         uses: ./
         with:
           context: ./test
-          file: ./test/big.Dockerfile
+          file: ./test/multi.Dockerfile
+          platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

test/big.Dockerfile

@@ -1,3 +0,0 @@
-FROM busybox
-RUN dd if=/dev/zero of=/output.dat bs=648M count=1
-RUN uname -a

test/multi.Dockerfile

@@ -1,5 +1,6 @@
 # syntax=docker/dockerfile:1
 FROM --platform=$BUILDPLATFORM golang:alpine AS build
+RUN apk add --no-cache ca-certificates go nodejs rust cargo
 
 ARG TARGETPLATFORM
 ARG BUILDPLATFORM