CODEWITHSUNDEEP
dockerdocker-compose
Andrey Kryukov
Andrey Kryukov

Reputation: 795

Docker. Access to php image from Ubuntu image

I'm trying to create my first dev environment based on docker.

My host is Windows 10 I need to create stack Ubuntu:14.04 + php in separate images.

Dockerfile for ubuntu: FROM ubuntu:14.04

Dockerfile for php: FROM php:5.6-fpm

Just that simple. W\o any additional parameters at that point.

docker-compose.yml:

version: '3.7'
services:
  os:
    build:
      context: .
      dockerfile: .docker/ubuntu/Dockerfile
    container_name: ubuntu
    tty: true
    links:
      - php
  php:
    build: ./.docker/php
    container_name: php

Then docker-compose up --build

result is:

Building os
Step 1/2 : FROM ubuntu:14.04
 ---> 971bb384a50a
Step 2/2 : LABEL maintainer="Andrey Kryukov"
 ---> Using cache
 ---> 3d71726444ee

Successfully built 3d71726444ee
Successfully tagged nnrservice_os:latest
Building php
Step 1/2 : FROM php:5.6-fpm
 ---> 8d3dc6499e61
Step 2/2 : LABEL maintainer="Andrey Kryukov"
 ---> Using cache
 ---> b6fc0c83131b

Successfully built b6fc0c83131b
Successfully tagged nnrservice_php:latest
Starting ubuntu ... done
Starting php    ... done
Attaching to ubuntu, php
php    | [24-Aug-2018 05:14:01] NOTICE: fpm is running, pid 1
php    | [24-Aug-2018 05:14:01] NOTICE: ready to handle connections

And then docker-compose exec os /bin/sh result is:

#

W\o any errors. So I expected that php will be available inside my console. But no!

# php -v
/bin/sh: 1: php: not found
#

What I am doing wrong? Or maybe I losing some important concept?

Upvotes: 1

Views: 815

Answers (1)

Sathyajith Bhat
Sathyajith Bhat

Reputation: 21851

docker-compose exec os /bin/sh

You're connecting to the os container and trying to execute php, which is in the PHP container. Obviously, that will not work because the os container has only the base utils, not the PHP libraries and PHP-FPM application which is in the php container, as evident by 

php    | [24-Aug-2018 05:14:01] NOTICE: fpm is running, pid 1
php    | [24-Aug-2018 05:14:01] NOTICE: ready to handle connection

Why do you need an OS container and a PHP container? That defeats the purpose. The php container will have a base OS + required applications/libraries for PHP. You don't need two, if you goal is to just run PHP

Upvotes: 2

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