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chore(project): install exiftool in the runtime image

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The backend now shells out to exiftool for metadata extraction, so it must
be present alongside ffmpeg in the Alpine runtime stage.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Masahiko AMANO
2026-06-11 20:55:33 +03:00
parent 52c62b5c8d
commit 5571dfa46d
1 changed files with 6 additions and 4 deletions
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+6 -4
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@@ -49,13 +49,15 @@ RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /out/server
# -----------------------------------------------------------------------------
# Stage 3 — minimal runtime
#
# Alpine (not distroless/scratch) because video thumbnailing invokes ffmpeg as
# an external process; it must be present on the runtime image.
# Alpine (not distroless/scratch) because video thumbnailing invokes ffmpeg and
# metadata extraction invokes exiftool as external processes; both must be
# present on the runtime image.
# -----------------------------------------------------------------------------
FROM alpine:3.21 AS runtime
# ffmpeg: video frame extraction. ca-certificates/tzdata: TLS + time zones.
RUN apk add --no-cache ffmpeg ca-certificates tzdata
# ffmpeg: video frame extraction. exiftool: rich image/video/audio metadata.
# ca-certificates/tzdata: TLS + time zones.
RUN apk add --no-cache ffmpeg exiftool ca-certificates tzdata
# Run as an unprivileged user.
RUN addgroup -S -g 42776 tanabata && adduser -S -G tanabata -u 42776 tanabata