steve
8afda7cd8c
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The Dockerfile only set `-X main.version=...`, so docker-built binaries
left `internal/version.Version` at its default "dev". The update logic
(host_update.go:61, hosts.go:94, fleet_update.go:101 et al.) compares
against `internal/version.Version`, so a v1.0.0 host always looked
out-of-date to a v1.0.0 server, the chip never cleared, and pressing
"update" re-downloaded the same bundled binary on a loop.
Collapse the two version sources: drop the `var version/commit/date`
locals in cmd/{server,agent}/main.go, route everything through
internal/version (now also carrying Date), and have both the Dockerfile
and the Makefile set the same single set of -X flags. Verified
end-to-end: make build and docker build both emit binaries whose
--version reflects the build VERSION.
92 lines
3.4 KiB
Docker
92 lines
3.4 KiB
Docker
# syntax=docker/dockerfile:1.7
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# ---- Build stage --------------------------------------------------------
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# Cross-compiles:
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# * the server binary for the image's TARGETARCH (linux/amd64 or arm64),
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# * three agent binaries (linux/amd64, linux/arm64, windows/amd64) that
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# the running server hands out via /agent/binary.
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# Pure-Go SQLite (modernc.org/sqlite) means CGO stays off; static binaries
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# run on distroless/static.
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FROM --platform=$BUILDPLATFORM golang:1.25-alpine AS build
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WORKDIR /src
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ENV CGO_ENABLED=0 \
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GOFLAGS="-trimpath"
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# Cache module downloads in a separate layer.
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COPY go.mod go.sum* ./
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RUN go mod download
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COPY . .
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ARG VERSION=dev
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ARG COMMIT=none
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ARG DATE=unknown
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ARG TARGETOS
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ARG TARGETARCH
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ENV VERSION_PKG="gitea.dcglab.co.uk/steve/restic-manager/internal/version"
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ENV LDFLAGS="-s -w \
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-X ${VERSION_PKG}.Version=${VERSION} \
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-X ${VERSION_PKG}.Commit=${COMMIT} \
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-X ${VERSION_PKG}.Date=${DATE}"
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# Server: built for the image's runtime arch.
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RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
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go build -ldflags="${LDFLAGS}" \
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-o /out/restic-manager-server \
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./cmd/server
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# Empty /data skeleton so the runtime image carries an existing,
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# nonroot-owned mount point. Docker copies that ownership onto a
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# named volume the first time it's created, which avoids the
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# "permission denied" trap on /data/secret.key when the operator
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# uses a default `volumes: { rm-data: {} }` declaration.
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RUN mkdir -p /out/data
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# Agents: identical across image arches — an arm64 server image still
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# ships an amd64 agent binary for amd64 endpoints to download.
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RUN mkdir -p /out/agent-binaries && \
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GOOS=linux GOARCH=amd64 \
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go build -ldflags="${LDFLAGS}" \
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-o /out/agent-binaries/restic-manager-agent-linux-amd64 \
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./cmd/agent && \
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GOOS=linux GOARCH=arm64 \
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go build -ldflags="${LDFLAGS}" \
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-o /out/agent-binaries/restic-manager-agent-linux-arm64 \
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./cmd/agent && \
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GOOS=windows GOARCH=amd64 \
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go build -ldflags="${LDFLAGS}" \
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-o /out/agent-binaries/restic-manager-agent-windows-amd64.exe \
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./cmd/agent
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# ---- Runtime stage ------------------------------------------------------
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FROM gcr.io/distroless/static-debian12:nonroot
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LABEL org.opencontainers.image.source="https://gitea.dcglab.co.uk/steve/restic-manager"
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LABEL org.opencontainers.image.licenses="PolyForm-Noncommercial-1.0.0"
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USER nonroot:nonroot
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WORKDIR /
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# Server binary on PATH.
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COPY --from=build /out/restic-manager-server /usr/local/bin/restic-manager-server
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# Image-baked bundled assets (P5-03). Read-only; the /agent/binary and
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# /install/* handlers fall back here when <DataDir>/... is empty, so a
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# fresh container Just Works without first-run staging. Operators can
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# still drop a custom build under <DataDir>/agent-binaries/<name> to
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# override per-host.
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COPY --from=build --chmod=0755 /out/agent-binaries/ /opt/restic-manager/dist/agent-binaries/
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COPY --chmod=0755 deploy/install/install.sh /opt/restic-manager/dist/install/install.sh
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COPY --chmod=0644 deploy/install/install.ps1 /opt/restic-manager/dist/install/install.ps1
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COPY --chmod=0644 deploy/install/restic-manager-agent.service /opt/restic-manager/dist/install/restic-manager-agent.service
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# Pre-created data dir owned by nonroot so a fresh named volume
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# inherits the right ownership.
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COPY --from=build --chown=nonroot:nonroot /out/data /data
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EXPOSE 8443
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ENTRYPOINT ["/usr/local/bin/restic-manager-server"]
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