Dockerfile

# ...
FROM dunglas/frankenphp:1-alpine AS frankenphp_upstream

FROM frankenphp_upstream AS frankenphp_base

RUN apk add --no-cache \
		autoconf \
		pkgconfig \
		g++ \
		make \
		imagemagick-dev \
		libwebp-dev \
	;
  
  RUN set -eux; \
    cd /tmp \
    && yes '' | pecl download -Z imagick-3.7.0 \
    && tar -xf imagick-3.7.0.tar imagick-3.7.0/Imagick.stub.php \
    && sed -i '$ i\#endif' imagick-3.7.0/Imagick.stub.php \
    && tar -uvf imagick-3.7.0.tar imagick-3.7.0/Imagick.stub.php \
    && yes '' | pecl install -f /tmp/imagick-3.7.0.tar \
    && docker-php-ext-enable imagick \
    && rm -rf /tmp/imagick* \
    && rm -rf /tmp/pear \
    && cd - \
;