Can not find autoload.php when running laravel in a docker container - php

Question

I am trying to run laravel on a docker container. However, I created a docker file to install the required dependencies and extensions. Then, I created a docker-compose file to run the container. But, when running the container using docker-compose up the following error appears:
Warning: require(/var/www/vendor/autoload.php): failed to open stream:
No such file or directory in /var/www/artisan on line 18 main_system_1
| main_system_1 | Fatal error: require(): Failed opening required
'/var/www/vendor/autoload.php' (include_path='.:/usr/local/lib/php')
in /var/www/artisan on line 18 workspace_main_system_1 exited with
code 255
The Dockerfile:
FROM php:alpine
# Install dev dependencies
RUN apk add --no-cache --virtual .build-deps \
$PHPIZE_DEPS \
curl-dev \
imagemagick-dev \
libtool \
libxml2-dev \
postgresql-dev \
sqlite-dev
# Install production dependencies
RUN apk add --no-cache \
bash \
curl \
g++ \
gcc \
git \
imagemagick \
libc-dev \
libpng-dev \
make \
mysql-client \
nodejs \
nodejs-npm \
yarn \
openssh-client \
postgresql-libs \
rsync \
zlib-dev \
libzip-dev
# Install PECL and PEAR extensions
RUN pecl install \
imagick
# Install and enable php extensions
RUN docker-php-ext-enable \
imagick
RUN docker-php-ext-configure zip --with-libzip
RUN docker-php-ext-install \
curl \
iconv \
mbstring \
pdo \
pdo_mysql \
pdo_pgsql \
pdo_sqlite \
pcntl \
tokenizer \
xml \
gd \
zip \
bcmath
# Install composer
ENV COMPOSER_HOME /composer
ENV PATH ./vendor/bin:/composer/vendor/bin:$PATH
ENV COMPOSER_ALLOW_SUPERUSER 1
RUN curl -s https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin/ --filename=composer
# Install PHP_CodeSniffer
RUN composer global require "squizlabs/php_codesniffer=*"
# Cleanup dev dependencies
RUN apk del -f .build-deps
# Setup working directory
WORKDIR /var/www
COPY composer.json composer.json
#COPY composer.lock composer.lock
RUN composer install --no-autoloader
COPY . .
RUN composer dump-autoload
RUN php artisan key:generate
RUN php artisan jwt:secret
RUN chmod 777 -R storage
CMD php artisan serve --host=0.0.0.0 --port=8000
EXPOSE 8000
And this is my docker-composr.yml file:
ersion: '3.1'
services:
main_system:
build: ./main-system
ports:
- 8000:8000
env_file: ./main-system/.env
volumes:
- ./main-system:/var/www

Answer 1

Your dockerfile runs composer install --no-autoloader. This may be the issue.

Answer 2

I solved the problem by:
removing the volume from docker-compose.yml
change the order of the COPY . . command and put it before RUN composer install
removing the --no-autoloader