imgproxy Docker base

What is this?

Base Docker image with the latest imgproxy dependencies. Ideal for imgproxy development and building its Docker images.

How to use this?

For development

Run this image with your development directory mounted:

docker run --rm -it \
  -p 8080:8080 \
  -v $(pwd):/app \
  --name imgproxy_dev \
  darthsim/imgproxy-base:latest

...and build your imgproxy as usual:

go build

For production

If you don't care about the size, you can just build your Docker image on top of this one:

FROM darthsim/imgproxy-base:latest

COPY . .
# We use bash here to load dynamically generated build environment from /root/.basrc
RUN ["bash", "-c", "go build -v -o /usr/local/bin/imgproxy"]

ENV VIPS_WARNING=0
ENV MALLOC_ARENA_MAX=2

RUN groupadd -r imgproxy && useradd -r -u 999 -g imgproxy imgproxy
USER 999

CMD ["imgproxy"]

EXPOSE 8080

But you probably want to use multistage build to minimize the final image, and it's a bit tricky. You need to take care of the following:

1. Copy built dependencies from /usr/local/lib.
2. Install ca-certificates, libsm6, liblzma5, libzstd1, and libpcre3 from the Debian repo.
3. Set proper libraries paths.

Here is the working example:

FROM darthsim/imgproxy-base:latest

COPY . .
RUN ["bash", "-c", "go build -v -o /usr/local/bin/imgproxy"]

# ==================================================================================================
# Final image

FROM debian:bullseye-slim

RUN apt-get update \
  && apt-get upgrade -y \
  && apt-get install -y --no-install-recommends \
    bash \
    ca-certificates \
    libsm6 \
    liblzma5 \
    libzstd1 \
    libpcre3 \
  && rm -rf /var/lib/apt/lists/*

COPY --from=0 /usr/local/bin/imgproxy /usr/local/bin/
COPY --from=0 /usr/local/lib /usr/local/lib

ENV VIPS_WARNING=0
ENV MALLOC_ARENA_MAX=2
ENV LD_LIBRARY_PATH /usr/local/lib

RUN groupadd -r imgproxy && useradd -r -u 999 -g imgproxy imgproxy
USER 999

CMD ["imgproxy"]

EXPOSE 8080

Author

Sergey "DarthSim" Alexandrovich

License

imgproxy-base is licensed under the MIT license.

See LICENSE for the full license text.