Initial commit

Dockerfile

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+FROM golang:1.25-alpine AS builder
+
+ARG CHECKER_VERSION=custom-build
+
+WORKDIR /src
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+RUN go generate ./... && CGO_ENABLED=0 go build -tags standalone -ldflags "-X main.Version=${CHECKER_VERSION}" -o /checker-caa .
+
+FROM scratch
+COPY --from=builder /checker-caa /checker-caa
+USER 65534:65534
+EXPOSE 8080
+ENTRYPOINT ["/checker-caa"]