Dockerfile.cross

# Build the manager binary
FROM golang:1.22 as builder
ARG TARGETARCH
ARG TARGETOS
ARG VERSION

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

# Copy the go source
COPY cmd/main.go cmd/main.go
COPY api/ api/
COPY internal/controller/ internal/controller/

# Build
RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -a -installsuffix cgo -ldflags '-X "main.Version=$VERSION" -s -w -extldflags "-static"' -o manager cmd/main.go

# Use distroless as minimal base image to package the manager binary
# Refer to https://github.com/GoogleContainerTools/distroless for more details
FROM gcr.io/distroless/static:nonroot
WORKDIR /
COPY --from=builder /workspace/manager /manager
USER 65532:65532

ENTRYPOINT ["/manager"]