Pierre-Olivier Mercier
365dce7f2a
The binary doubles as its own healthcheck client via the SDK's -healthcheck flag, so the probe works in the scratch image (no shell, no curl, no wget).
18 lines
473 B
Docker
18 lines
473 B
Docker
FROM golang:1.25-alpine AS builder
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ARG CHECKER_VERSION=custom-build
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ARG TARGET=checker-caldav
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WORKDIR /src
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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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RUN CGO_ENABLED=0 go build -ldflags "-X main.Version=${CHECKER_VERSION}" -o /checker ./cmd/${TARGET}
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FROM scratch
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COPY --from=builder /checker /checker
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USER 65534:65534
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EXPOSE 8080
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD ["/checker", "-healthcheck"]
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ENTRYPOINT ["/checker"]
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