Issues docker with pm2 and nginx - node.js

Question

I'm having issues running a pm2 app on a container, I tried accessing through docker port and with an nginx proxy, but none of these solutions are working. Here's my docker config:
version: '3.5'
services:
webapp:
build:
context: .
image: ${DOCKER_IMAGE}
container_name: mypm2app
stdin_open: true
networks:
- "default"
restart: always
ports:
- "8282:8282"
extra_hosts:
- host.local:${LOCAL_IP}
db:
image: mongo:4.2.6
container_name: mongodb
restart: always
environment:
MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
MONGO_INITDB_DATABASE: ${MONGO_INITDB_DATABASE}
volumes:
- ${MONGO_SCRIPT_PATH}:${MONGO_SCRIPT_DESTINATION_PATH}
networks:
- "default"
networks:
default:
external:
name: ${NETWORK_NAME}
Also I have this dockerfile:
FROM image
WORKDIR /var/www/html/path
COPY package.json /var/www/html/path
RUN npm install
COPY . /var/www/html/path
EXPOSE 8282/tcp
CMD pm2-runtime start ecosystem.config.js --env development
pm2 is starting the service, but I cannot access it through localhost:port.
I tried to add an nginx proxy:
nginx:
depends_on:
- webapp
restart: always
build:
dockerfile: Dockerfile.dev
context: ./nginx
ports:
- "3002:80"
networks:
default:
ipv4_address: ${nginx_ip}$
with this docker-file
FROM nginx
COPY ./default.conf /etc/nginx/conf.d/default.conf
This is the nginx configuration, default.conf:
upstream mypm2app {
server mypm2app:8282;
}
server {
listen 80;
server_name mypm2app.local;
location / {
proxy_pass http://mypm2app/;
}
}
I would appreciate any suggestion or answer to this issue.