How to change ownership of folder inside the container after build?

Question

I have this service in my docker-compose.yml

php-fpm: container_name: php_app restart: always build: context: . dockerfile: ./docker/php-fpm/Dockerfile volumes: - ./src:/var/www/html

that take everything of the host folder src and add to /var/www/html:

FROM php:8.0.2-fpm-alpine
WORKDIR /var/www/html

RUN docker-php-ext-install pdo_mysql
RUN docker-php-ext-install mysqli
RUN apk add icu-dev

COPY docker/php-fpm/config/php.ini /usr/local/etc/php/

RUN apk add --update nodejs nodejs-npm
RUN npm install gulp-cli -g
RUN npm install

COPY src src/

CMD ["php-fpm"]

EXPOSE 9000

accessing the container using sudo docker exec -it php_app sh and executing ls -la I have:

drwxrwxr-x 6 1001 1001 4096 May 12 15:54 writable

which must be owned by www-data, how can I set the ownership automatically when the builds complete?

Answer 1

you need to create the www-data user in the dockerfile eg

RUN addgroup -g 1000 www-data && adduser -G www-data -g www-data -s /bin/sh -D www-data

RUN chown -R www-data:www-data /home/www-data && \
    chown -R www-data:www-data /var/www