mirror of
https://github.com/hanzoai/kms.git
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zeekayandHanzo Dev
4bcdcbfbf6
Both modules declare go 1.27.1 and the build images follow. go fix applied the modernizers: promoted-field keys in struct literals, SplitSeq, strings.Cut, new(expr), slices.Contains and any. The ptr helper had no callers left once new(expr) could say it. omitzero is not applied; it changes what the JSON says, so it is a per-field decision. Co-authored-by: Hanzo Dev <[email protected]>
90 lines
3.8 KiB
Docker
90 lines
3.8 KiB
Docker
# Hanzo KMS: a thin wrapper over luxfi/kms, built in pure Go. The console in
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# frontend/ is a static site published on its own and is not part of this image.
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FROM golang:1.27.1-bookworm AS build
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ARG TARGETARCH
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WORKDIR /src
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COPY go.mod go.sum ./
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# kmsclient is an in-repo module built via a local replace (see go.mod).
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# Stage its go.mod/go.sum so `go mod download` can read the replaced module's
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# graph before the full source tree is copied.
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COPY sdk/go/go.mod sdk/go/go.sum ./sdk/go/
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# Every module in this graph is public. They resolve through the module proxy
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# and verify against the checksum database under the h1: hashes already in
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# go.sum, so this build carries no credential and sets no GOPRIVATE — the
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# checksum database stays authoritative for every dependency.
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RUN --mount=type=cache,target=/go/pkg/mod \
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go mod download
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COPY . .
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# Per SCALE_STANDARD.md §2 — GOEXPERIMENT=jsonv2 is mandatory in every
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# production Dockerfile that builds Go code emitting JSON to clients.
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# Verified -12% time / -23% allocs on the edge POST roundtrip.
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ARG GO_EXPERIMENT=jsonv2
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ENV GOEXPERIMENT=${GO_EXPERIMENT}
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# Pure Go build — no CGO required (luxfi/kms uses ZapDB, not SQLCipher).
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RUN --mount=type=cache,target=/go/pkg/mod \
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--mount=type=cache,target=/root/.cache/go-build \
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CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} \
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go build -ldflags="-s -w" -o /kmsd ./cmd/kmsd/ && \
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go build -ldflags="-s -w" -o /kms ./cmd/kms/
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# What the scratch stage copies in place of useradd and mkdir, which it does not have.
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RUN printf 'hanzo:x:1000:1000::/data/hanzo-kms:/sbin/nologin\n' > /etc/passwd.kms && \
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printf 'hanzo:x:1000:\n' > /etc/group.kms && \
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mkdir -p /emptydir
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# THE IMAGE IS THE TWO BINARIES.
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#
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# Both are CGO_ENABLED=0 and statically linked, so they take nothing from a host.
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# Debian was supplying ca-certificates (data the binary reads), an account
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# (/etc/passwd, which the kernel reads to name a uid it already enforces), and
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# curl — which existed for one line, the HEALTHCHECK.
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#
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# That matters more here than in most images. This is the service that holds the
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# estate's secrets, and a base image is the largest thing in it that nobody here
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# wrote: apt, dpkg, a shell, coreutils, glibc, each on its own upstream and its
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# own CVE feed, none of it ever executed by kmsd. A credential store should be
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# the smallest reviewable surface in the fleet, not the largest.
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#
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# The HEALTHCHECK is deleted rather than given a static curl: every deployment
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# runs under Kubernetes, whose readinessProbe and livenessProbe ask
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# /healthz from outside the container. Shipping an HTTP client inside a secret
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# store so it can ask itself a question the orchestrator already asks is a poor
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# trade.
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FROM scratch
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# Data, read by the binaries, executed by nothing.
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COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
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# The account. scratch has no useradd, so the two files it would have written are
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# written in the builder and copied. The uid is what the kernel enforces; these
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# only let something later put a name to it.
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COPY --from=build /etc/passwd.kms /etc/passwd
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COPY --from=build /etc/group.kms /etc/group
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# The data directory, owned by the account, created in the builder because there
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# is no mkdir here. A mounted volume replaces it; this is what the image holds
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# when nothing is mounted.
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COPY --from=build --chown=1000:1000 /emptydir /data/hanzo-kms
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COPY --from=build /kmsd /usr/local/bin/kmsd
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COPY --from=build /kms /usr/local/bin/kms
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# Hanzo defaults — the binary already defaults to these, env vars only
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# document them for operators inspecting the image.
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ENV KMS_LISTEN=:8443 \
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KMS_ZAP_PORT=9653 \
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KMS_DATA_DIR=/data/hanzo-kms \
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KMS_NODE_ID=hanzo-kms-0 \
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BRAND_NAME=Hanzo
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USER 1000:1000
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WORKDIR /data/hanzo-kms
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EXPOSE 8443 9653
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ENTRYPOINT ["/usr/local/bin/kmsd"]
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