502 Bad Gateway, cURL request to API Platform, Symfony - php

Question

I'm making a cURL request
curl -X 'POST' \
'http://localhost:8013/api/superheros' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
"name": "Clark Kent",
"slug": "supermman",
"featured": true,
"createdAt": "2021-10-11T11:48:22.366Z"
}'
to an API endpoint on my local above. I receive a 502 bad gateway error.
I'm using Docker for all intents and purposes.
docker-compose.yml
version: '3'
services:
#PHP Service
app1:
build:
context: .
dockerfile: Dockerfile
image: digitalocean.com/php
container_name: app1
restart: unless-stopped
tty: true
environment:
SERVICE_NAME: app1
SERVICE_TAGS: dev
working_dir: /var/www
volumes:
- ./:/var/www
- ./php/local.ini:/usr/local/etc/php/conf.d/local.ini
networks:
- app-network
#Nginx Service
webserver1:
image: nginx:alpine
container_name: webserver1
restart: unless-stopped
tty: true
ports:
- "8013:80"
- "443:443"
volumes:
- ./:/var/www
- ./nginx/conf.d/:/etc/nginx/conf.d/
networks:
- app-network
#MySQL Service
db1:
image: mysql:5.7.22
container_name: db1
restart: unless-stopped
tty: true
ports:
- "3318:3306"
environment:
MYSQL_DATABASE: rest_api
MYSQL_ROOT_PASSWORD: password
SERVICE_TAGS: dev
SERVICE_NAME: mysql
volumes:
- dbdata:/var/lib/mysql
- ./mysql/my.cnf:/etc/mysql/my.cnf
networks:
- app-network
#Docker Networks
networks:
app-network:
driver: bridge
#Volumes
volumes:
dbdata:
driver: local
Dockerfile
FROM php:7.4-fpm
# Copy composer.lock and composer.json
COPY composer.lock composer.json /var/www/
# Set working directory
WORKDIR /var/www
# Install dependencies
RUN apt-get update && apt-get install -y \
build-essential \
libpng-dev \
libjpeg62-turbo-dev \
libfreetype6-dev \
locales \
libzip-dev \
zip \
jpegoptim optipng pngquant gifsicle \
vim \
unzip \
git \
curl
# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
# Install extensions
RUN docker-php-ext-install pdo_mysql zip exif pcntl
RUN docker-php-ext-configure gd --with-freetype --with-jpeg
RUN docker-php-ext-install gd
# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
# Add user for laravel application
RUN groupadd -g 1000 www
RUN useradd -u 1000 -ms /bin/bash -g www www
# Copy existing application directory contents
COPY . /var/www
# Copy existing application directory permissions
COPY --chown=www:www . /var/www
# Change current user to www
USER www
# Expose port 9000 and start php-fpm server
EXPOSE 9000
CMD ["php-fpm"]
app.conf
server {
listen 80;
index index.php index.html;
error_log /var/log/nginx/error.log;
access_log /var/log/nginx/access.log;
root /var/www/public;
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass app1:9000;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
}
location / {
try_files $uri $uri/ /index.php?$query_string;
gzip_static on;
}
}
I've read people saying that PHP-FPM isn't running but my Dockerfile clearly uses it. Are you able to offer some clues?

Answer 1

You could try to pass arguments to php-fpm in your Dockerfile as below, and make sure 9000 port is configured in local.ini
CMD ["php-fpm", "-F", "-y", "/usr/local/etc/php/conf.d/local.ini"]
-F force php-fpm running in foreground
-y sepcify the config path
After Dockerfile modified, you need to run docker-compose build to rebuild docker image