calling overlayWith on a jpeg with an svg segfaulting (docker alpine image)

I’m having issues with a particular operation in my operation pipeline, namely overlayWith. My sequence of operations looks something like this:

const frame = new Buffer(`<svg ....`)
 image.resize(imageWidth, imageHeight)
  .crop('north')
  .background({r: 255, g: 255, b: 255, alpha: 255})
  .extend(stretchDimensions)
  .overlayWith(frame)
  .jpeg().toBuffer().then(console.log)

On my computer it all works (Mac OS X). My issue is using one of the many variations of the sharp alpine distro (I’m following this one). As I need to do a bit more, I’ve copied and modified the entries in the Dockerfile to suit my needs, and the end result looks like this:

FROM node:8.2-alpine
...
ENV VIPS_VERSION 8.5.7
ENV SHARP_VERSION 0.18.2
ENV GYP_VERSION 3.6.2

# Compile Vips and Sharp
RUN	apk --no-cache add libpng librsvg libgsf libjpeg-turbo musl \
		&& apk --no-cache add --virtual .build-dependencies \
			 g++ libc-dev make python curl tar gtk-doc glib-dev \
			 libpng-dev libjpeg-turbo-dev librsvg-dev \
			 gobject-introspection expat-dev giflib-dev \
  	&& mkdir -p /usr/src \
  	&& curl -o vips.tar.gz -SL https://github.com/jcupitt/libvips/releases/download/v${VIPS_VERSION}/vips-${VIPS_VERSION}.tar.gz \
		&& tar -xzf vips.tar.gz -C /usr/src/ \
		&& rm vips.tar.gz \
		&& chown -R nobody.nobody /usr/src/vips-${VIPS_VERSION} \
		&& cd /usr/src/vips-${VIPS_VERSION} \
		&& ./configure \
		&& make \
		&& make install \
		&& cd / \
		&& rm -r /usr/src/vips-${VIPS_VERSION} \
		&& yarn add global node-gyp@${GYP_VERSION} sharp@${SHARP_VERSION} \
		&& apk del .build-dependencies 
...

After the lengthy process of building the image and running my program, it segfaults. I’ve isolated it to the overlayWith call (if I comment it, it works).

I’m aware that this might be an issue with libvips / alpine / smth else, so I’d appreciate at the very least some help in redirecting me to the proper person who can help me (maybe those maintainers are also maintaining sharp?).

[HoneyryderChuck]

@lovell as I went away from the alpine distro for everything involving vips, this is not as important to me anymore. However, I still have my test script to reproduce the segfault. I’ll see if I can allocate some time at the end of the week to test those changes and come back at you with feedback.

[lovell]

Closing due to inactivity but please feel free to re-open with a backtrace.