Рыба проекта. Минимальная функциональность

deploy/docker/Dockerfile

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+FROM golang:1.26-alpine AS builder
+WORKDIR /src
+COPY go.mod go.sum ./
+RUN --mount=type=cache,target=/root/go/pkg/mod go mod download
+COPY . .
+RUN --mount=type=cache,target=/root/go/pkg/mod CGO_ENABLED=0 go build -o /out/synapse-backupper ./cmd/synapse-backupper
+
+FROM alpine:3.24
+RUN apk add --no-cache postgresql18-client ca-certificates && update-ca-certificates
+RUN addgroup -S app && adduser -S -G app app
+COPY --from=builder --chown=app:app /out/synapse-backupper /usr/local/bin/synapse-backupper
+USER app
+EXPOSE 8080
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s CMD wget -qO- http://localhost:8080/healthz || exit 1
+LABEL maintainer="infra@tswf.io" version="0.1.0" description="Synapse PostgreSQL backup tool with composite dual-KEM encryption"
+ENTRYPOINT ["/usr/local/bin/synapse-backupper"]
+CMD ["run"]