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I want to run my asp.net application at nginx server, But I am facing the following error in dev environment
"502 Bad Gateway". Information of docker compose and nginx is given below respectively

-------docker compose ----------

`version: '3.4'

services:
webapplication1:
image: ${DOCKER_REGISTRY-}webapplication1
build:
context: .
dockerfile: WebApplication1/Dockerfile
expose:
- "5050"
networks:
- app-network

db1:
image: microsoft/mssql-server-linux
container_name: db1
environment:
SA_PASSWORD: "Thingtrax%1"
ACCEPT_EULA: "Y"
MSSQL_PID: Express
ports:
- "7004:1433"
networks:
app-network:
ipv4_address: 172.27.0.3

web_nginx:
image: nginx
ports:
- "8088:80"
volumes:
- ${APPDATA}/nginx/nginx.conf:/etc/nginx/nginx.conf
depends_on:
- webapplication1
- db1
networks:
- app-network
container_name: web_nginx
restart: always

networks:
app-network:
ipam:
driver: default
config:
- subnet: 172.27.0.0/16`

nginx.conf###

worker_processes 4;

events { worker_connections 1024; }

http {
sendfile on;

upstream webapplication {
    server webapplication1:5050;
}

server {
    listen 80;

    location / {
        proxy_pass         http://webapplication;
        proxy_redirect     http://localhost http://webapplication;
        proxy_set_header   Host $host;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Host $server_name;

    }
}

}

Please help me to solve this issue