Problems installing GD on php7.2 with docker (Docker version 18.09.7, build 2d0083d)

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2

Hi

You cant have multiple commands, atleast not like this.
The best thing you can do is to build and image where this is installed (will also speed up deployment time)

according to: https://hub.docker.com/_/php

PHP Core Extensions

For example, if you want to have a PHP-FPM image with iconv and gd extensions, you can inherit the base image that you like, and write your own Dockerfile like this:

FROM php:7.2-fpm
RUN apt-get update && apt-get install -y \
        libfreetype6-dev \
        libjpeg62-turbo-dev \
        libpng-dev \
    && docker-php-ext-install -j$(nproc) iconv \
    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
    && docker-php-ext-install -j$(nproc) gd
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