I have a Dockerfile
where I copy an existing directory (with content) to the container which works fine:
Dockerfile
FROM php:7.0-apache
COPY Frontend/ /var/www/html/aw3somevideo/
COPY Frontend/ /var/www/html/
RUN ls -al /var/www/html
RUN chown -R www-data:www-data /var/www/html
RUN chmod -R 755 /var/www/html
But when I use a docker-compose.yml
file there is only the directory aw3somevideo
and inside aw3somevideo
there is nothing.
docker-compose.yml:
php:
build: php/
volumes:
- ./Frontend/ :/var/www/html/
- ./Frontend/index.php :/var/www/html/
ports:
- 8100:80
Maybe I do not understand the function of volumes
and if that's the case please tell me how to copy my existing files to the container via a docker-compose.yml
file.
Given
volumes:
- /dir/on/host:/var/www/html
if /dir/on/host
doesn't exist, it is created on the host and the empty content is mounted in the container at /var/www/html
. Whatever content you had before in /var/www/html
inside the container is inaccessible, until you unmount the volume; the new mount is hiding the old content.