42 lines
1.1 KiB
Docker
42 lines
1.1 KiB
Docker
# ───── Stage 1: Build the adapter binary ─────
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FROM golang:1.22-alpine AS builder
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RUN apk add --no-cache git make gcc musl-dev
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WORKDIR /src
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COPY . .
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RUN go mod tidy
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RUN make
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# Verify binary
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RUN ls -la postgresql-prometheus-adapter && \
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./postgresql-prometheus-adapter --help > /dev/null
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# ───── Stage 2: Runtime (Alpine for glibc/loader) ─────
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FROM alpine:3.20
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RUN apk add --no-cache libc6-compat bash # bash for start.sh, libc for binary
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# Copy binary
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COPY --from=builder /src/postgresql-prometheus-adapter /usr/local/bin/postgresql-prometheus-adapter
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RUN chmod +x /usr/local/bin/postgresql-prometheus-adapter
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# Copy and make start.sh executable
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COPY start.sh /usr/local/bin/start.sh
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RUN chmod +x /usr/local/bin/start.sh
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# Non-root user
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RUN addgroup -g 1001 -S appgroup && \
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adduser -S -D -H -u 1001 -h /home/app -s /bin/bash -G appgroup -g appuser appuser
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USER appuser
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WORKDIR /home/app
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EXPOSE 9201
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget --no-verbose --tries=1 --spider http://localhost:9201/health || exit 1
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ENTRYPOINT ["/usr/local/bin/start.sh"] |