Dockerfile.testserver

# Build the testserver binary
FROM golang:1.25.5 AS builder
ARG TARGETOS
ARG TARGETARCH

WORKDIR /workspace
# Copy the Go Modules manifests
COPY . .
# 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
ARG GITHUB_TOKEN
RUN git config --global url."https://${GITHUB_TOKEN}@github.com/".insteadOf "https://github.com/"
RUN go mod download

# Build
# the GOARCH has not a default value to allow the binary be built according to the host where the command
# was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
# the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
# by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o testserver test/testserver/main.go

# Use Alpine as minimal base image to package the testserver binary
FROM alpine:latest
WORKDIR /
COPY --from=builder /workspace/testserver .
RUN mkdir -p /data && \
    apk add --no-cache tar

ENTRYPOINT ["/testserver", "-output", "/data/requests.json"]