Docker container port mapping 80:80 only works on localhost but not from external access?

Asked Sep 11 '21 at 10:09

Active Sep 11 '21 at 12:35

Viewed 4,617 times

Logged in my intranet server via SSH on IP 10.10.245.209 (port 22 of course)

Created a docker-compose.yml:

version: '3.8'
services:
  php-apache-environment:
    container_name: php-apache
    image: php:8.0-apache
    volumes:
      - ./php/src:/var/www/html/
    ports:
      - 80:80

And in ./php/src I have index.php:

<?php
echo 123+123;

I use docker-compose up -d in the current directory, and the container is successfully started:

CONTAINER ID   IMAGE                    COMMAND                  CREATED          STATUS                    PORTS                               NAMES
9795a5fdd59f   php:8.0-apache           "docker-php-entrypoi…"   19 minutes ago   Up 19 minutes             0.0.0.0:80->80/tcp, :::80->80/tcp   php-apache

Now if I use lynx http://localhost or lynx http://127.0.0.1, it's correctly returning:

As the web page. But when I try to access the server http://10.10.245.209 in Chrome, it keeps circling for a few seconds and then nothing (ERR_EMPTY_RESPONSE).

lsof -i:80 results:

COMMAND     PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
docker-pr 24074 root    4u  IPv4 129863      0t0  TCP *:http (LISTEN)
docker-pr 24081 root    4u  IPv6 131383      0t0  TCP *:http (LISTEN)

According to docs and some searches in Google, everything I did was correct?

What could be wrong here?

edited Sep 11 '21 at 12:35

asked Sep 11 '21 at 10:09

datasn.io

1

Did you open port 80 in the firewall? – Itai Ganot Sep 11 '21 at 10:12
I would use a other port as 80 on the container due I had a fault in the mapping of the container, however the question is what `lsof -I :80` is telling – djdomi Sep 11 '21 at 10:43
@Itai How do I know if port 80 is open? – datasn.io Sep 11 '21 at 12:00
`lsof -I :80` gives me `lsof: illegal option character: I` – datasn.io Sep 11 '21 at 12:02
@djdomi I've updated the output of `lsof -i:80` in the question. – datasn.io Sep 11 '21 at 12:34
1

@djdomi By `a other port as 80 on the container`, do you mean the container port or the host port? – datasn.io Sep 11 '21 at 12:37
I would use port 8080 for the host, since port 80 seems to be fixed used in the container – djdomi Sep 11 '21 at 17:58

Docker container port mapping 80:80 only works on localhost but not from external access?

0 Answers0