FROM golang:1.26-alpine AS build

WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download

COPY cmd/    ./cmd/
COPY pkg/    ./pkg/

RUN go test -count=1 ./...

ARG GIT_SHA=unknown
RUN CGO_ENABLED=0 go build -trimpath \
        -ldflags="-s -w -X main.gitSHA=${GIT_SHA}" \
        -o /out/flock ./cmd/flock \
 && CGO_ENABLED=0 go build -trimpath \
        -ldflags="-s -w -X main.gitSHA=${GIT_SHA}" \
        -o /out/flock-agent ./cmd/flock-agent \
 && CGO_ENABLED=0 go build -trimpath \
        -ldflags="-s -w -X main.gitSHA=${GIT_SHA}" \
        -o /out/flock-installer ./cmd/flock-installer

FROM alpine:3.21
RUN apk add --no-cache iproute2 bird ca-certificates
COPY --from=build /out/flock           /usr/local/bin/flock
COPY --from=build /out/flock-agent     /usr/local/bin/flock-agent
COPY --from=build /out/flock-installer /usr/local/bin/flock-installer
ENTRYPOINT ["/usr/local/bin/flock-agent"]