Docker Swarm - communicate between two containers?

Question

I created docker-compose.yml which works on my computer (local) but not work on server (docker swarm, portainer). Container nginx can`t see php-fpm.

docker-compose.yml:

version: "3"

services:
  nginx:
    image: nginx-php-test:8
    ports:
    - "8888:80"
    restart: always
    environment:
    - ROLE=nginx #run nginx

  fpm:
    image: nginx-php-test:8
    environment:
    - ROLE=fpm #run php
    restart: always

in /etc/nginx/conf.d/default:

...
fastcgi_pass fpm:9000;
...

and entrypoint.sh for nginx-php-test:

#!/bin/bash

if [ "$ROLE" == "nginx" ]; then
    exec /usr/sbin/nginx
elif [ "$ROLE" == "fpm" ]; then
    exec /usr/sbin/php-fpm7.4 -F
fi

How to connect to the fpm container?

I don't think this is possible. – Robert Moskal Jan 12 '20 at 02:58 — Robert Moskal, Jan 12 '20 at 02:58
@RobertMoskal look my answer ;) – Arkadiusz G. Jan 12 '20 at 10:53 — Arkadiusz G., Jan 12 '20 at 10:53

score 0 · Answer 1 · answered Jan 12 '20 at 10:48

0

I found a solution:

version: "3"

services:
  nginx:
    image: nginx-php-test:8
    ports:
    - "8888:80"
    restart: always
    environment:
    - ROLE=nginx #run nginx

  fpm:
    image: nginx-php-test:8
    environment:
    - ROLE=fpm #run php
    restart: always
networks:
    nginx-php:
      driver: overlay

answered Jan 12 '20 at 10:48

Arkadiusz G.

1,024
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Is that really communicating between two containers? – Robert Moskal Jan 16 '20 at 20:47
yes i checked it. You can also like this: networks: nginx-php: – Arkadiusz G. Jan 16 '20 at 22:26

Docker Swarm - communicate between two containers?

1 Answers1