Adding multiarch image support (#1474)

.github/workflows/release.yaml

@@ -0,0 +1,56 @@
+name: Publish image
+
+on:
+  release:
+    types: [released]
+
+jobs:
+  build:
+    env:
+      IMAGE_NAME: gcr.io/kaniko-project/executor
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get latest release tag      
+        uses: oprypin/find-latest-tag@v1
+        with:
+          repository: GoogleContainerTools/kaniko  # The repository to scan.
+          releases-only: true  # We know that all relevant tags have a GitHub release for them.
+        id: kaniko  
+
+      - name: Clone source code
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ steps.kaniko.outputs.tag }}
+      
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+  
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          version: latest
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Setup gcloud CLI 
+        uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
+        with:
+          service_account_key: ${{ secrets.GCR_DEVOPS_SERVICE_ACCOUNT_KEY }}
+          project_id: kaniko-project
+          export_default_credentials: true
+        
+      - name: Build and push image
+        run: |
+          gcloud auth configure-docker -q
+          IMAGE_VERSION="$(git describe --tags --abbrev=0)"
+          SHORT_SHA1=$(git rev-parse --short HEAD)
+          PLATFORMS="linux/amd64,linux/ppc64le,linux/arm64"
+          echo "Building and pushing version ${IMAGE_VERSION} of image ${IMAGE_NAME}"
+          docker buildx build --platform "${PLATFORMS}" -t "${IMAGE_NAME}:${IMAGE_VERSION}" -t "${IMAGE_NAME}:latest" -f ./deploy/Dockerfile \
+            --push .
+    

acr.patch

@@ -0,0 +1,32 @@
+diff --git a/build/build-config-edit.sh b/build/build-config-edit.sh
+index d9fffd0..88b83a9 100755
+--- a/build/build-config-edit.sh
++++ b/build/build-config-edit.sh
+@@ -13,10 +13,9 @@ if [[ ! -d "$sourcedir" ]]; then
+ fi
+
+ export CGO_ENABLED=0
+-export GOARCH=amd64
+ export GOPATH=$PWD
+ echo "Go path = $GOPATH"
+-for go_os in "linux" "windows" "darwin"
++for go_os in "linux"
+ do
+     if [[ "$go_os" == "windows" ]]; then
+         exe_extension=".exe"
+diff --git a/build/build-cred-helper.sh b/build/build-cred-helper.sh
+index 0e88315..d016988 100755
+--- a/build/build-cred-helper.sh
++++ b/build/build-cred-helper.sh
+@@ -22,9 +22,8 @@ fi
+
+ export BUILDVERSION=acr-docker-credential-helper`date -u +.%Y%m%d.%H%M%S`
+ export CGO_ENABLED=0
+-export GOARCH=amd64
+ export GOPATH=$PWD
+-for go_os in "linux" "windows" "darwin"
++for go_os in "linux"
+ do
+     export GOOS=$go_os
+     if [[ "$GOOS" == "windows" ]]; then
+

deploy/Dockerfile

@@ -17,31 +17,56 @@
 FROM golang:1.14
 ARG GOARCH=amd64
 WORKDIR /go/src/github.com/GoogleContainerTools/kaniko
+
+RUN echo $GOARCH > /goarch
+
+#This arg is passed by docker buildx & contains the platform info in the form linux/amd64, linux/ppc64le etc.
+ARG TARGETPLATFORM
+
+#Capture ARCH has write to /goarch
+RUN [ ! "x" = "x$TARGETPLATFORM" ] && `echo $TARGETPLATFORM |  awk '{split($0,a,"/"); print a[2]}' > /goarch` || echo "$GOARCH"
+
 # Get GCR credential helper
-ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v2.0.2/docker-credential-gcr_linux_amd64-2.0.2.tar.gz /usr/local/bin/
+RUN GOARCH=$(cat /goarch) && CGO_ENABLED=0 && \
-RUN tar --no-same-owner -C /usr/local/bin/ -xvzf /usr/local/bin/docker-credential-gcr_linux_amd64-2.0.2.tar.gz
+  (mkdir -p /go/src/github.com/GoogleCloudPlatform || true)                  && \
+  cd /go/src/github.com/GoogleCloudPlatform                                  && \
+  git clone https://github.com/GoogleCloudPlatform/docker-credential-gcr.git && \
+  cd /go/src/github.com/GoogleCloudPlatform/docker-credential-gcr            && \
+  make deps OUT_DIR=/usr/local/bin                                           && \
+  go build -ldflags "-linkmode external -extldflags -static" -i -o /usr/local/bin/docker-credential-gcr main.go  
+
 # Get Amazon ECR credential helper
-RUN go get -u github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
+RUN GOARCH=$(cat /goarch) && go get -u github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login && \
-RUN make -C /go/src/github.com/awslabs/amazon-ecr-credential-helper linux-amd64
+  make -C /go/src/github.com/awslabs/amazon-ecr-credential-helper
+
 # ACR docker credential helper
-ADD https://aadacr.blob.core.windows.net/acr-docker-credential-helper/docker-credential-acr-linux-amd64.tar.gz /usr/local/bin
+COPY ./acr.patch /
-RUN tar --no-same-owner -C /usr/local/bin/ -xvzf /usr/local/bin/docker-credential-acr-linux-amd64.tar.gz
+RUN GOARCH=$(cat /goarch) && (mkdir -p /go/src/github.com/Azure || true)  && \
-# ACR docker env credential helper
+  cd /go/src/github.com/Azure                                             && \
-ADD https://github.com/chrismellard/docker-credential-acr-env/releases/download/0.6.0/docker-credential-acr-env_0.6.0_Linux_x86_64.tar.gz /usr/local/bin/
+  git clone https://github.com/Azure/acr-docker-credential-helper         && \
-RUN tar --no-same-owner -C /usr/local/bin/ -xvzf /usr/local/bin/docker-credential-acr-env_0.6.0_Linux_x86_64.tar.gz
+  cd /go/src/github.com/Azure/acr-docker-credential-helper                && \
+  git checkout a79b541f3ee761f6cc4511863ed41fb038c19464                   && \
+  git apply < /acr.patch                                                  && \
+  make && cp -f bin/linux/${GOARCH}/docker-credential-acr-linux /usr/local/bin/docker-credential-acr-linux
+  
+#ACR docker env credential helper
+RUN GOARCH=$(cat /goarch) && (mkdir -p /go/src/github.com/chrismellard || true)   && \
+  cd /go/src/github.com/chrismellard                                              && \
+  git clone https://github.com/chrismellard/docker-credential-acr-env             && \
+  cd  docker-credential-acr-env                                                   && \
+  make build && cp -f ./build/docker-credential-acr-env /usr/local/bin
 
 # Add .docker config dir
 RUN mkdir -p /kaniko/.docker
 
 COPY . .
-RUN make GOARCH=${GOARCH}
+RUN make GOARCH=$(cat /goarch.txt) 
 
 FROM scratch
 COPY --from=0 /go/src/github.com/GoogleContainerTools/kaniko/out/executor /kaniko/executor
 COPY --from=0 /usr/local/bin/docker-credential-gcr /kaniko/docker-credential-gcr
-COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/linux-amd64/docker-credential-ecr-login /kaniko/docker-credential-ecr-login
+COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/local/docker-credential-ecr-login /kaniko/docker-credential-ecr-login
 COPY --from=0 /usr/local/bin/docker-credential-acr-linux /kaniko/docker-credential-acr
-COPY --from=0 /usr/local/bin/docker-credential-acr-env /kaniko/docker-credential-acr-env
 COPY files/ca-certificates.crt /kaniko/ssl/certs/
 COPY --from=0 /kaniko/.docker /kaniko/.docker
 COPY files/nsswitch.conf /etc/nsswitch.conf
@@ -53,4 +78,6 @@ ENV DOCKER_CONFIG /kaniko/.docker/
 ENV DOCKER_CREDENTIAL_GCR_CONFIG /kaniko/.config/gcloud/docker_credential_gcr_config.json
 WORKDIR /workspace
 RUN ["docker-credential-gcr", "config", "--token-source=env"]
+
 ENTRYPOINT ["/kaniko/executor"]
+

hack/install_golint.sh

@@ -69,6 +69,7 @@ is_supported_platform() {
     windows/386) found=0 ;;
     linux/amd64) found=0 ;;
     linux/386) found=0 ;;
+    linux/ppc64le) found=0 ;;
   esac
   return $found
 }