問題描述

TL;DR 你能給我指出一個使用 composer 處理 PHP 依賴項的 docker 鏡像示例嗎?

TL;DR Can you point me to an example of a docker image that uses composer to handle PHP dependencies?

我在這篇文章中的所有問題都是關(guān)于 composer php 依賴工具 不是 docker-composer fig 的繼任者em>.

All my questions in this post are regarding composer the php dependency tool not docker-composer the successor of fig.

我正在嘗試構(gòu)建我自己的 docker 鏡像來運行 WordPress 作為 Composer 依賴項安裝.

I'm trying to build my own docker image to run WordPress installed as a composer dependency.

我正在使用 docker PHP 鏡像作為基礎(chǔ)構(gòu)建 docker 鏡像，我需要做的是安裝 composer 并在鏡像創(chuàng)建時或鏡像構(gòu)建時運行 composer update 命令(不知道是否兩個都可以).

I'm working on building a docker image using docker PHP image as a base and what I need to do is install composer and run a composer update command either on image creation time or on image build time (don't know if both would be ok).

我可以通過手動執(zhí)行所有步驟(運行 docker 鏡像，猛擊它，然后復(fù)制和粘貼每一步)來運行一切正常.

I can run everything just fine by manually executing all the steps (running a docker image, bashing into it, and copying and pasting every step).

但是當(dāng)我將所有這些步驟放在 Dockerfile 上時，我沒有讓 Composer 來編寫文件.

But when I put all that steps on a Dockerfile I don't get composer to write the files.

一段時間以來，我一直在嘗試獲得最少失敗的示例，但我得到的示例并不是最少的.

I've been trying to get a minimum failing example for some time but the one I've got is quite not minimum.

我的測試由以下內(nèi)容組成(鏈接到下面的相關(guān) github 存儲庫)

My test is composed of the following (links to the relevant github repos below)

Dockerfile

NFORMATION ~~~#

# based on
# https://hub.docker.com/r/richarvey/nginx-php-fpm/
# and
#?https://hub.docker.com/_/wordpress/

FROM php:7.0.2-apache

MAINTAINER Miquel Adell <miquel@miqueladell.com>

ENV WORDPRESS_VERSION 4.4.1



#~~~?DEPENDENCIES ~~~#

# Add PHP repository to apt source
RUN apt-get update 
    && apt-get install -y 
        libpng12-dev 
        libjpeg-dev  
        curl 
        sed 
        zlib1g-dev 
    && docker-php-ext-install 
        zip 
        mysqli

RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer



#~~~ DIRS ~~~#

WORKDIR /var/www/html/



#~~~ WORDPRESS ~~~#

COPY files/composer.json composer.json
ONBUILD RUN composer update

docker-compose.yml

wordpress:
  image: miqueladell/composed_wordpress_test
  links:
    - wordpress_db:mysql
  environment:
    - VIRTUAL_HOST=miqueladell.dev
    - WORDPRESS_DB_NAME=wordpress
  ports:
   - "80"

wordpress_db:
  image: miqueladell/mariadb-utf8mb4
  environment:
     - MYSQL_ROOT_PASSWORD=password

我的測試如下

1. 在包含上面粘貼的 Dockerfile 的目錄中構(gòu)建執(zhí)行此命令的映像

1. Build an image executing this command in a directory containing the Dockerfile pasted above

 docker build -t miqueladell/composed_wordpress_test .

(日志中沒有錯誤)

通過在包含上面粘貼的 docker-compose.yml 的目錄中運行以下命令，使用該圖像構(gòu)建容器

Use that image to build a container by running the following command in a directory containing the docker-compose.yml pasted above

 docker-compose up

(日志中沒有錯誤)

bash 進入正在運行的容器以查看文件是否存在

bash into the running container to be able to see if the files are there

 docker exec -i -t miqueladellv2_wordpress_1 bash

 root@bff14367658b:/var/www/html# ls -al
 total 12
 drwxr-xr-x 2 www-data www-data 4096 Jan 19 10:50 .
 drwxr-xr-x 5 root     root     4096 Jan 19 10:50 ..
 -rw-r--r-- 1 root     root      138 Jan 15 09:18 composer.json

您可以在第 4 步中看到 composer update 似乎根本沒有運行.

You can see in step 4 that composer update seems to not have run at all.

我都試過

RUN composer update

和

ONBUILD RUN composer update

在 Dockerfile 上具有相同的結(jié)果.

on Dockerfile with the same results.

如果我回到測試的前一個步驟 4 并在 docker 容器的 bash 提示符下手動運行 composer update 我得到:

If I go back to the previous step 4 of the test and I manually run composer update on the bash prompt of the docker container I get:

root@bff14367658b:/var/www/html# composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Installing johnpbloch/wordpress-core-installer (0.2.1)
    Downloading: 100%

  - Installing johnpbloch/wordpress (4.4.1)
    Downloading: 100%

Writing lock file
Generating autoload files
root@bff14367658b:/var/www/html# ls -al
total 24
drwxr-xr-x 4 www-data www-data 4096 Jan 19 11:12 .
drwxr-xr-x 6 root     root     4096 Jan 19 11:12 ..
-rw-r--r-- 1 root     root      138 Jan 15 09:18 composer.json
-rw-r--r-- 1 root     root     3718 Jan 19 11:12 composer.lock
drwxr-xr-x 4 root     root     4096 Jan 19 11:12 vendor
drwxr-xr-x 5 root     root     4096 Jan 19 11:12 wordpress
root@bff14367658b:/var/www/html#

這正是我在第 4 步中期望的輸出

which is exactly the output I was expecting on step 4

完整文件的github鏈接

• Dockerfile 及其依賴項
• docker-composer

推薦答案

像這樣安裝 composer 可以避免這個問題:

Installing composer like this will avoid this problem:

RUN curl -o /tmp/composer-setup.php https://getcomposer.org/installer 
&& curl -o /tmp/composer-setup.sig https://composer.github.io/installer.sig 
# Make sure we're installing what we think we're installing!
&& php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); echo 'Invalid installer' . PHP_EOL; exit(1); }" 
&& php /tmp/composer-setup.php --no-ansi --install-dir=/usr/local/bin --filename=composer --snapshot 
&& rm -f /tmp/composer-setup.*

這篇關(guān)于獲取 Composer(php 依賴管理器)以在 docker 鏡像構(gòu)建上運行的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！