# syntax=docker/dockerfile:1.7
FROM golang:1.25.13-alpine AS build

ARG VERSION=v1.3.0

RUN apk add --no-cache build-base
WORKDIR /src

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

COPY . .
RUN CGO_ENABLED=1 GOOS=linux go build -trimpath -ldflags="-s -w -X github.com/root-kdw12/hetzner-api-dyndns-records-webinterface/internal/buildinfo.Version=${VERSION}" -o /out/dyndns-web ./cmd/dyndns-web && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /out/update-agent ./cmd/update-agent

FROM alpine:3.23.2 AS runtime

RUN apk add --no-cache ca-certificates && \
    addgroup -S -g 10001 dyndns && \
    adduser -S -D -H -u 10001 -G dyndns dyndns && \
    mkdir -p /data /secrets && chown dyndns:dyndns /data /secrets

COPY --from=build /out/dyndns-web /usr/local/bin/dyndns-web
COPY --from=build /out/update-agent /usr/local/bin/update-agent

USER dyndns:dyndns
WORKDIR /data
EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 CMD ["/usr/local/bin/dyndns-web", "healthcheck"]

ENTRYPOINT ["/usr/local/bin/dyndns-web"]