Content of my Dockerfile:
FROM php:8.1-apache
WORKDIR /var/www/html/
RUN pecl install xdebug \
&& docker-php-ext-enable xdebug \
&& a2enmod rewrite \
&& docker-php-ext-install zip
COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
COPY composer.json composer.json
COPY composer.lock composer.lock
RUN groupadd -r user && useradd -r -g user user
USER user
RUN composer install --no-dev
COPY . .
EXPOSE 80
The composer installation fails at the point where it's telling me that the libzip package is needed. I can however not find that package, no matter if via pecl, via apt-get; as most of the forum posts refer to. How can I Install libzip to finally get things running?
A few notes on my Dockerfile lines; feel free to correct me if I'm wrong in the setup; it's the first time I'm doing this:
COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
COPY composer.json composer.json
COPY composer.lock composer.lock
As I understood it, the official docs tell you to use this multi-stage approach to get composer running in your PHP Docker container in an optimal way. If I understood it correctly, doing it in this way allows you to share your image without your colleagues needing to install composer / download the packages locally; everything will then be done within the container. Which is exactly what I'm looking for.
RUN groupadd -r user && useradd -r -g user user
USER user
RUN composer install --no-dev
I first tried to simply run the last line composer install --no-dev, which actually won't work, as the container won't let you execute root commands; used by default by composer. Hence the reason for this workaround (changing the user is also what the official docs recommend; according to the link above).
&& docker-php-ext-install zip
When finally able to run the composer install command within the container, it told me that the zip extension is needed; which is why I've added the docker-php-ext-install zip command. Now I'm stuck due to the initially mentioned libzip issue.
If you see a better way to setup composer; I'm happy to hear about a better way.
