42 lines
1.3 KiB
Text
42 lines
1.3 KiB
Text
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# syntax=docker/dockerfile:1.7
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# ---------- build ----------
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FROM golang:1.23-alpine3.21 AS build
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ENV CGO_ENABLED=0 \
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GOOS=linux \
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GOFLAGS="-trimpath"
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WORKDIR /src
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# Only the signing-service module is needed. Copy the module files first so
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# the dependency download layer is cacheable independently of source edits.
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COPY services/signing-service/go.mod ./
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# go.sum will be copied in when the module gains external deps; today the
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# module is stdlib-only.
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RUN --mount=type=cache,target=/root/.cache/go-build \
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--mount=type=cache,target=/go/pkg/mod \
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go mod download || true
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COPY services/signing-service/ ./
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RUN --mount=type=cache,target=/root/.cache/go-build \
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--mount=type=cache,target=/go/pkg/mod \
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go vet ./... && \
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go test ./... && \
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go build -ldflags="-s -w" -o /out/signing-service ./cmd/signing-service
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# ---------- runtime ----------
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# Distroless static+nonroot: no shell, no package manager, UID/GID 65532.
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# gcr.io/distroless/static-debian12:nonroot pins to the latest nonroot
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# variant; CI tags images by git sha so this is reproducible at the point
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# of build.
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FROM gcr.io/distroless/static-debian12:nonroot
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COPY --from=build /out/signing-service /signing-service
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USER 65532:65532
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EXPOSE 8081
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ENTRYPOINT ["/signing-service"]
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CMD ["-listen=:8081", "-backend=memory"]
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