FROM golang:1.21-alpine

# disable crosscompiling
ENV CGO_ENABLED=0

# compile linux only
ENV GOOS=linux

WORKDIR /app
COPY ./app .

# fetch go libs and build the binary with debug information removed
RUN \
    go mod download && \
    go mod verify && \
    go build -v -ldflags "-s -w" -a -installsuffix cgo -o api-server ./main.go

WORKDIR /app

ENTRYPOINT ["/app/api-server"]