FROM --platform=$BUILDPLATFORM golang:1.26.1@sha256:cd78d88e00afadbedd272f977d375a6247455f3a4b1178f8ae8bbcb201743a8a AS builder

WORKDIR /builder

# Copy the Go Modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
RUN go mod download

# Copy the go source
COPY main.go .
COPY pkg pkg

ARG TARGETOS
ARG TARGETARCH
RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build

FROM gcr.io/distroless/base-debian12
COPY --from=builder /builder/kubelogin /
ENTRYPOINT ["/kubelogin"]
