e71ddc2f8b
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handlePresignVoiceSample generates voice samples on demand via pocket-tts, which requires WAV→MP3 transcoding via ffmpeg. The backend was using distroless/static (no ffmpeg) so all pocket-tts preview requests returned 500. Switch backend stage to Alpine + ffmpeg, matching the runner image.
53 lines
2.3 KiB
Docker
53 lines
2.3 KiB
Docker
# syntax=docker/dockerfile:1
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FROM golang:1.26.1-alpine AS builder
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WORKDIR /app
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# Download modules into the BuildKit cache so they survive across builds.
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# This layer is only invalidated when go.mod or go.sum changes.
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COPY go.mod go.sum ./
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RUN --mount=type=cache,target=/root/go/pkg/mod \
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go mod download
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COPY . .
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ARG VERSION=dev
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ARG COMMIT=unknown
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# Build all three binaries in a single layer so the Go compiler can reuse
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# intermediate object files. Both cache mounts are preserved between builds:
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# /root/go/pkg/mod — downloaded module source
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# /root/.cache/go-build — compiled package objects (incremental recompile)
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RUN --mount=type=cache,target=/root/go/pkg/mod \
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--mount=type=cache,target=/root/.cache/go-build \
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CGO_ENABLED=0 GOOS=linux go build \
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-ldflags="-s -w -X main.version=${VERSION} -X main.commit=${COMMIT}" \
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-o /out/backend ./cmd/backend && \
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CGO_ENABLED=0 GOOS=linux go build \
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-ldflags="-s -w -X main.version=${VERSION} -X main.commit=${COMMIT}" \
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-o /out/runner ./cmd/runner && \
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CGO_ENABLED=0 GOOS=linux go build \
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-ldflags="-s -w" \
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-o /out/healthcheck ./cmd/healthcheck
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# ── backend service ──────────────────────────────────────────────────────────
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# Uses Alpine (not distroless) so ffmpeg is available for on-demand voice
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# sample generation via pocket-tts (WAV→MP3 transcoding).
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FROM alpine:3.21 AS backend
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RUN apk add --no-cache ffmpeg ca-certificates && \
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addgroup -S appgroup && adduser -S appuser -G appgroup
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COPY --from=builder /out/healthcheck /healthcheck
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COPY --from=builder /out/backend /backend
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USER appuser
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ENTRYPOINT ["/backend"]
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# ── runner service ───────────────────────────────────────────────────────────
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# Uses Alpine (not distroless) so ffmpeg is available for WAV→MP3 transcoding
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# when pocket-tts voices are used.
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FROM alpine:3.21 AS runner
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RUN apk add --no-cache ffmpeg ca-certificates && \
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addgroup -S appgroup && adduser -S appuser -G appgroup
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COPY --from=builder /out/healthcheck /healthcheck
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COPY --from=builder /out/runner /runner
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USER appuser
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ENTRYPOINT ["/runner"]
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