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Dockerfile
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# syntax=docker/dockerfile:latest
FROM golang:1.22.3-alpine3.18 as go
ENV IMAGINARY_HASH 6cd9edd1d3fb151eb773c14552886e4fc8e50138
RUN set -ex; \
apk add --no-cache \
vips-dev \
vips-magick \
vips-heif \
vips-jxl \
vips-poppler \
build-base; \
go install github.com/h2non/imaginary@"$IMAGINARY_HASH";
FROM alpine:3.18.6
RUN set -ex; \
apk upgrade --no-cache -a; \
apk add --no-cache \
tzdata \
ca-certificates \
netcat-openbsd \
vips \
vips-magick \
vips-heif \
vips-jxl \
vips-poppler \
bash
COPY --from=go /go/bin/imaginary /usr/local/bin/imaginary
COPY --chmod=775 start.sh /start.sh
ENV PORT 9000
USER nobody
# https://github.com/h2non/imaginary#memory-issues
ENV MALLOC_ARENA_MAX=2
ENTRYPOINT ["/start.sh"]
HEALTHCHECK CMD nc -z localhost "$PORT" || exit 1
LABEL com.centurylinklabs.watchtower.enable="false"