Dockerfile.debug

# Build a manager binary with debug symbols and download Delve
FROM --platform=$BUILDPLATFORM golang:1.22.4 as builder

ARG GOPATH
ARG GOCACHE

ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH

RUN printf "Building for TARGETPLATFORM=${TARGETPLATFORM}" \
    && printf ", TARGETARCH=${TARGETARCH}" \
    && printf ", TARGETOS=${TARGETOS}" \
    && printf ", TARGETVARIANT=${TARGETVARIANT} \n" \
    && printf "With 'uname -s': $(uname -s) and 'uname -m': $(uname -m)"

WORKDIR /workspace

# Use cache mounts to cache Go dependencies and bind mounts to avoid unnecessary
# layers when using COPY instructions for go.mod and go.sum.
# https://docs.docker.com/build/guide/mounts/
RUN --mount=type=cache,target=$GOPATH/pkg/mod \
    --mount=type=cache,target=$GOCACHE \
    --mount=type=bind,source=go.sum,target=go.sum \
    --mount=type=bind,source=go.mod,target=go.mod \
    go mod download -x

COPY controllers/ controllers/
COPY pkg/ pkg/
COPY internal/ internal/
COPY Makefile .

# Build
ARG TAG
ARG COMMIT
ARG REPO_INFO

# Use cache mounts to cache Go dependencies and bind mounts to avoid unnecessary
# layers when using COPY instructions for go.mod and go.sum.
# https://docs.docker.com/build/guide/mounts/
RUN --mount=type=cache,target=$GOPATH/pkg/mod \
    --mount=type=cache,target=$GOCACHE \
    --mount=type=bind,source=go.sum,target=go.sum \
    --mount=type=bind,source=go.mod,target=go.mod \
    CGO_ENABLED=0 GOOS=linux GOARCH="${TARGETARCH}" GO111MODULE=on make _build.debug

### Debug
# Create an image that runs a debug build with Delve installed
FROM golang:1.22.4 AS debug
RUN go install github.com/go-delve/delve/cmd/dlv@latest
# We want all source so Delve file location operations work
COPY --from=builder /workspace/bin/manager-debug /
USER 65532:65532

ENTRYPOINT ["/go/bin/dlv"]
CMD ["exec", "--continue", "--accept-multiclient",  "--headless", "--api-version=2", "--listen=:2345", "--log", "/manager-debug"]