Feature/enhance multi platform build (#66)

Signed-off-by: Batuhan Apaydın <[email protected]>
Co-authored-by: Furkan Turkal <[email protected]>

.github/workflows/create-images.yml

@@ -3,6 +3,7 @@ name: Create images
 on:
   release:
     types: [published]
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -62,6 +63,8 @@ jobs:
           push: true
           tags: |
             ${{ env.REGISTRY }}/${{ matrix.apps }}:${{ env.IMG_TAG }}
+          build-args: |
+            GO_VERSION=${{ env.GO_VERSION }}
           labels: |
             org.opencontainers.image.source=${{ github.repositoryUrl }}
 

docker/exporter/Dockerfile

@@ -1,26 +1,30 @@
+# syntax=docker/dockerfile:1
+
 # Build the manager binary
-FROM golang:1.19 as builder
+ARG GO_VERSION=1.19
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION} as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
-COPY go.mod go.mod
-COPY go.sum go.sum
-# cache deps before building and copying source so that we don't need to re-download as much
-# and so that source changes don't invalidate our downloaded layer
-RUN go mod download
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,source=go.sum,target=go.sum \
+    --mount=type=bind,source=go.mod,target=go.mod \
+    go mod download -x
 
 # Copy the go source
 COPY cmd/exporter/ cmd/exporter/
 COPY pkg/ pkg/
 
 # Build
-ARG TARGETARCH
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} GO111MODULE=on go build -o exporter cmd/exporter/main.go
+ARG TARGETOS TARGETARCH
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,target=. \
+    CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH GO111MODULE=on go build -o /bin/exporter cmd/exporter/main.go
 
 # Use distroless as minimal base image to package the exporter binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
 FROM --platform=${TARGETPLATFORM:-linux/amd64} gcr.io/distroless/static:nonroot
 WORKDIR /
-COPY --from=builder /workspace/exporter .
+COPY --from=builder /bin/exporter .
 
 ENTRYPOINT ["/exporter"]