Dockerfile.webhook

# syntax=docker/dockerfile:latest

# Build the manager binary
FROM --platform=$BUILDPLATFORM golang:1.23-alpine as builder
RUN apk update
RUN apk add make bash
WORKDIR /workspace
COPY go.mod go.sum ./
RUN go mod download

# Copy the go source
COPY Makefile.build Makefile
COPY cmd/webhook cmd/webhook
COPY pkg pkg

ARG TARGETOS TARGETARCH TARGETVARIANT
RUN if [[ -n "${TARGETVARIANT}" ]]; then export GOARM=${TARGETVARIANT}; fi
# Build
RUN --mount=type=cache,target=/root/.cache/go-build GOOS=$TARGETOS GOARCH=$TARGETARCH \
    INJECTOR_WEBHOOK_BUILD_OUTPUT_PATH=/build/bin/injector-webhook \
    make injector-webhook
RUN ls -la /build/bin

FROM alpine
LABEL org.opencontainers.image.source https://github.com/janekbaraniewski/kubeserial

WORKDIR /
ENV USER_NAME=kubeserial \
    USER_UID=1001
COPY entrypoint entrypoint
COPY --from=builder /build/bin/injector-webhook .


ENTRYPOINT ["/entrypoint", "/injector-webhook"]
USER ${USER_UID}