FROM golang:1.22-alpine AS build
WORKDIR /src
COPY go.mod go.sum* ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o /watcher ./cmd/watcher

FROM alpine:3.19
RUN apk add --no-cache ca-certificates
COPY --from=build /watcher /watcher
ENTRYPOINT ["/watcher"]