FROM golang:1.24-alpine AS builder
RUN apk add --no-cache git
WORKDIR /app
COPY go.mod ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -o image-checker .

FROM alpine:latest
RUN apk --no-cache add ca-certificates
WORKDIR /app
COPY --from=builder /app/image-checker .
CMD ["./image-checker"]