I needed this when I switched from kubernetes to docker compose(Kubernetes was too much to maintain and I only had one small project).
To load balance I used the following config for nginx:
upstream pool-of-services {
# Resolved by docker dns, so they must exist at nginx startup, othewise this fails
server container_1:6070;
server container_2:6070;
}
server {
# Listen to port 443 on both IPv4 and IPv6.
listen 443 ssl;
listen [::]:443 ssl;
location / {
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_pass http://pool-of-services;
}
}