docker nginx container doesn't contain nginx? - docker

Question

I have a laravel project that runs on a single docker container.
I use docker-composer.yml to configure the container. I use nginx:latest base image in my Dockerfile. For some reason when I tried to launch my project with command docker-compose up I got this error:
web_1 | 2019-05-10 15:51:14,035 INFO spawnerr: can't find command '/usr/sbin/nginx'
web_1 | 2019-05-10 15:51:15,037 INFO spawnerr: can't find command '/usr/sbin/nginx'
web_1 | 2019-05-10 15:51:17,040 INFO spawnerr: can't find command '/usr/sbin/nginx'
web_1 | 2019-05-10 15:51:20,050 INFO spawnerr: can't find command '/usr/sbin/nginx'
web_1 | 2019-05-10 15:51:20,050 INFO gave up: nginx entered FATAL state, too many start retries too quickly
I was suprised so I took a look inside the container with docker exec -ti mycontainername bash and I couldn't find nginx anywhere. I tried with nginx -v,
whereis nginx , cd /etc/nginx <-- directory didn't exist.
So i tried to create a simple container, which containts only nginx. I should theoretically be able to go to localhost:80 and see the Nginx welcome message, right?
docker run --rm -d -p 80:80 --name my-nginx nginx
well there was no message and when I took a look inside the container
docker exec my-nginx I couldn't find nginx anywhere, but if I ran the command apt-get nginx it showed that nginx is already the latest version.
FULL DOCKER-COMPOSE.YML
version: '1'
services:
web:
build:
context: ./
# dockerfile: web.dockerfile
working_dir: /var/www/html
# volumes_from:
# - app
ports:
- 8080:80
volumes:
- ./:/var/www/html
- /var/run/docker.sock:/var/run/docker.sock
environment:
full Dockerfile:
FROM nginx:latest
RUN apt-get update && apt-get install -y php-gd
RUN apt-get -y install php7.2-zip
#COPY app /var/www/html/app
#COPY artisan /var/www/html/app/artisan
#COPY bootstrap /var/www/html/bootstrap
#COPY config /var/www/html/config
#COPY database /var/www/html/database
#COPY public /var/www/html/public
#COPY resources /var/www/html/resources
#COPY routes /var/www/html/routes
#COPY storage /var/www/html/storage
#COPY vendor /var/www/html/vendor
#COPY artisan /var/www/html/artisan
#COPY composer.json /var/www/html/composer.json
COPY entrypointcust.sh /entrypointcust.sh
RUN chmod +x /entrypointcust.sh
EXPOSE 80
WORKDIR /var/www/html/old
# Add crontab file in the cron directory
ADD cron /etc/cron.d/appcron
# Give execution rights on the cron job
RUN chmod 0644 /etc/cron.d/appcron
RUN /usr/bin/crontab /etc/cron.d/appcron
# Create the log file to be able to run tail
#RUN touch /var/log/cron.log
#RUN touch /var/www/html/storage/logs/laravel.log
#RUN chown -R www-data:www-data /var/www/html
#RUN chmod -R 777 /var/www/html/storage
ENTRYPOINT ["/bin/bash", "-c", "/entrypointcust.sh"]
What am I missing?