How to set up Supervisor and Laravel Horizon on Docker - php

Question

I have successfully deployed a laravel application with horizon installed to AWS ECS. However horizon has remained Inactive and I am stuck trying to get it to work as my emails are getting queued and never sent. This is my docker file
FROM php:8.1.4-fpm-alpine3.14
RUN apk update
RUN apk add --no-cache git libzip-dev zip unzip php8-exif supervisor
RUN mkdir -p /usr/src/php/ext/redis; \
curl -fsSL https://pecl.php.net/get/redis --ipv4 | tar xvz -C "/usr/src/php/ext/redis" --strip 1; \
docker-php-ext-install redis;
RUN docker-php-ext-install pdo pdo_mysql zip exif \
&& curl -sS https://getcomposer.org/installer | php -- \
--install-dir=/usr/local/bin --filename=composer
WORKDIR /var/www/html
COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
COPY horizon.conf /etc/supervisor/conf.d/horizon.conf
COPY . .
RUN chown -R www-data:www-data /var/www/html
RUN composer install --ignore-platform-req=ext-pcntl
RUN chmod 544 startup.sh
CMD ["/usr/bin/supervisord"]
ENTRYPOINT ["./startup.sh"]
I created a supervisord.conf file with this content in it
[supervisord]
nodaemon=true
[program:sshd]
command=/usr/sbin/sshd -D
a horizon.conf file with its content below
[program:horizon]
process_name=%(program_name)s
command=php /var/www/html/artisan horizon
autostart=true
autorestart=true
user=root
redirect_stderr=true
stdout_logfile=/var/log/horizon.log
stopwaitsecs=3600
and this is what my startup script startup.sh looks like
#!/bin/sh
php artisan migrate
php artisan db:seed
php artisan config:cache
php artisan route:cache
php artisan horizon
php artisan queue:restart
php artisan serve --host=0.0.0.0 --port 80
I am not exactly very knowledgable with supervisor on containers so I need help figuring out why I am not able to get horizon to be active and fix it.