Apache Superset

Dockerfile Cookbook Recipes Part 03: apache / php

thinkmelt@protonmail.com

Jun 23, 2024 • 2 min read

The goal is to always make these guides very simple - but to build from there, and to always try to include debugging information.

Prerequisites: If you need a quick startup script for installing docker / docker-ce:

apache images are for serving static content.
php images are for serving php code which can generate pages and also poll from databases for dataset presentations

Step 1: Apache Container Basics Calling a basic apache docker image and running it to see how it works.

docker run -it --name my-apache-app -p 8080:80 httpd:latest

-it Interactive terminal mode
--name name of running container
-p 8080:80 port 8080 on host will map to port 80 on container
httpd:latest the image to pull and run

Naturally we have not mapped any data. Adding data and going into 'daemon' mode only requires changing your command line to the following

docker run -dit --name htttp -p 8080:80 -v /data:/usr/local/apache2/htdocs/ httpd:latest

The pages root dir in a apache2 are served from /usr/local/apache2/htdocs/
The pages root dir in otherapache server are served from /var/www/html

A docker-compose.yaml example:

version: '3'
services:
    apache2:
        image: httpd:latest
        volumes:
            - /data:/usr/local/apache2/htdocs/
        ports:
            - 8080:80

Which is then stood up with (diagnostic mode)

docker-compose up

Or in full continuance mode:

docker-compose up -d

Step 2: PHP Container Basics

The process of standing up a php html server is identical, and will enable you to run and process php code along with serving content.
The internal root is /var/www/html

Running in diagnostic mode:

docker run -it -p 8080:80 --name php_app -v /data:/var/www/html php:7.2-apache

Running in permanent daemon mode one adds -d to above

Checking the capabilities of the php running container:

Make a file in the /data named index.php:

<?php 
 phpinfo(); 

 phpinfo(INFO_MODULES);
?>

And then call it with:

http://<local ip>/index.php

It will show up as (if it is working)

Docker-compose.yaml example:

version: '3.1'

services:
  php:
    image: php:7.2-apache
    ports:
      - 8080:80
    volumes:
      - /data:/var/www/html/