使用 Docker 和 PHP 从 env 文件加载环境变量
Load environment variables from env file with Docker and PHP
如何使用 Docker 文件中设置的 dotenv 变量传递给 Php 应用程序？
最近尝试使用带有一组键值对的“.env”文件来跨不同的配置文件使用，但注意到 Docker + Wordpress 图像不容易设置。虽然在节点等中设置起来很简单
请参阅下面与 docker-compose.yml:
位于同一目录的“.env”文件
WORDPRESS_DB_NAME=wp_xxxx
WORDPRESS_DB_USER=xxxxxx
WORDPRESS_DB_PASSWORD=xxxxxx
WORDPRESS_DB_HOST=xxxxxxxx
此处提供的官方 Wordpress 图片 (https://hub.docker.com/_/wordpress) 记录了 "The following environment variables are also honoured for configuring your WordPress [...] WORDPRESS_DB_USER, WORDPRESS_DB_PASSWORD, etc".
默认情况下，"wp-config.php" 中的配置参数不会被 .env 变量替换，这导致我通过安装 composer 来扩展原始 Wordpress 图像。让我们调用下面的文件 "DockerWordpress.yml":
FROM wordpress:php7.3-apache
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer && chmod +x /usr/bin/composer
RUN composer require vlucas/phpdotenv
在主 Docker-compose.yml 文件中使用，如下所示。查找服务 "Wordpress":
version: '3.1'
services:
web:
container_name: web
image: nginx:1.15.11-alpine
volumes:
- ./nginx/foobar.conf:/etc/nginx/conf.d/default.conf
- ../../foobar-blog-ui/public/:/var/www/html/
ports:
- 80:80
- 443:443
networks:
- foobar-wordpress-network
node:
image: node:8.16.0-slim
working_dir: /home/node/app
environment:
- NODE_ENV=development
volumes:
- ../../foobar-blog-ui/:/home/node/app
- ./node_modules:/home/node/app/node_modules
- ./npm/.npmrc:/home/node/app/.npmrc
ports:
- 8000:8000
- 9000:9000
command: bash -c "apt-get update && apt-get install -y rsync vim git libpng-dev libjpeg-dev libxi6 build-essential libgl1-mesa-glx && npm install && exit 0"
depends_on:
- wordpress
networks:
- foobar-wordpress-network
wordpress:
build:
context: .
dockerfile: ./Services/DockerWordpress.yml
container_name: wordpress
restart: on-failure
ports:
- 8888:80
environment:
WORDPRESS_DB_HOST: ${WORDPRESS_DB_HOST}
WORDPRESS_DB_NAME: ${WORDPRESS_DB_NAME}
WORDPRESS_DB_USER: ${WORDPRESS_DB_USER}
WORDPRESS_DB_PASSWORD: ${WORDPRESS_DB_PASSWORD}
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
- ./wordpress/wp-config.php:/var/www/html/wp-config.php
depends_on:
- db
networks:
- foobar-wordpress-network
wordpress-cli:
image: wordpress:cli
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./scripts/docker-entrypoint.sh:/var/www/html/docker-entrypoint.sh
depends_on:
- wordpress
- db
command: sh -c "sleep 30 && ./docker-entrypoint.sh"
networks:
- foobar-wordpress-network
db:
image: mariadb:latest
ports:
- 3306:3306
restart: on-failure
environment:
MYSQL_DATABASE: ${WORDPRESS_DB_NAME}
MYSQL_USER: ${WORDPRESS_DB_USER}
MYSQL_PASSWORD: ${WORDPRESS_DB_PASSWORD}
# MYSQL_ROOT_HOST: ${WORDPRESS_DB_HOST}
MYSQL_ROOT_HOST: '%'
MYSQL_RANDOM_ROOT_PASSWORD: '1'
volumes:
- ./wordpress/database:/docker-entrypoint-initdb.d
- ./mysql/my.cnf:/etc/mysql/conf.d/my.cnf"
- ./mysql/data:/var/lib/mysql
networks:
- foobar-wordpress-network
healthcheck:
test: ["CMD", "mysqladmin", "-u${WORDPRESS_DB_USER}", "-p${WORDPRESS_DB_PASSWORD}", "ping"]
interval: 60s
timeout: 60s
retries: 3
volumes:
mysql_data:
node_modules:
networks:
foobar-wordpress-network:
driver: bridge
最后，从外部源装载到容器卷中的 "wp-config.php" 文件，正如您在前面的 "docker-compose" 文件中看到的那样。这是通过遵循 defacto 插件提供的文档在 Php 社区中使用 dotEnv 变量 (https://github.com/vlucas/phpdotenv) 来完成的。
<?php
require_once(__DIR__ . './vendor/autoload.php');
(new \Dotenv\Dotenv(__DIR__ . '/../.init/Docker'))->load();
/**
* The base configuration for WordPress
*
* The wp-config.php creation script uses this file during the
* installation. You don't have to use the web site, you can
* copy this file to "wp-config.php" and fill in the values.
*
* This file contains the following configurations:
*
* * MySQL settings
* * Secret keys
* * Database table prefix
* * ABSPATH
*
* @link https://codex.wordpress.org/Editing_wp-config.php
*
* @package WordPress
*/
// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define( 'DB_NAME', '');
/** MySQL database username */
define( 'DB_USER', '');
/** MySQL database password */
define( 'DB_PASSWORD', '');
/** MySQL hostname */
define( 'DB_HOST', '');
/** Database Charset to use in creating database tables. */
define( 'DB_CHARSET', 'utf8');
/** The Database Collate type. Don't change this if in doubt. */
define( 'DB_COLLATE', '');
/**#@+
* Authentication Unique Keys and Salts.
*
* Change these to different unique phrases!
* You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
* You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again.
*
* @since 2.6.0
*/
define( 'AUTH_KEY', 'U(p)0EQ$O;meL`Oe@1$t7nI?<$=|NJ)kb+Shya21)-M2HI#/B#e~:@gX+}h@[LNE' );
define( 'SECURE_AUTH_KEY', 'Qpe;9 Ye^zuSozw@}2*f9mK~]7/V1,gf[^v4=}@ N!$<(q2qI<3U]kNK^P4b)n;7' );
define( 'LOGGED_IN_KEY', 'R=yN?s&Ek8ncd;xuvIHU];2fo#piE[MbF6 63@aP:p1TyZmz#94(>XErht{}6<V,' );
define( 'NONCE_KEY', 'Xr~QqP8%cjPA$] ?m*-CrcjgdfA6Vao>8C/AI6-pi_Y<rI]y=6fKSOS6i/%4F~Xl' );
define( 'AUTH_SALT', '<<7vysQ=uPfNxyl? z=97AyIfm~QNn5%JI7^)bFW&;A`V.5`W2xj+KXJY`_hV66T' );
define( 'SECURE_AUTH_SALT', 'dT-4]:wh_.++<M&L6>&Eywn})wSzy+.`v6eBhl694uF(fc:yp9:?oV! PDbU(ST(' );
define( 'LOGGED_IN_SALT', '3rPPnmKp|dUR=KX{W-TVYH7a:60P7z}$h3jgggKJgn~9XX`)6XuCtzMLjypztu!m' );
define( 'NONCE_SALT', 'X4aAby}iQOenSg7~R@,9+/-mc_lfzq!*RMP+cKOgv0K[{xS73~|k0u:zq>G.My' );
/**#@-*/
/**
* WordPress Database Table prefix.
*
* You can have multiple installations in one database if you give each
* a unique prefix. Only numbers, letters, and underscores please!
*/
$table_prefix = 'wp_';
/**
* For developers: WordPress debugging mode.
*
* Change this to true to enable the display of notices during development.
* It is strongly recommended that plugin and theme developers use WP_DEBUG
* in their development environments.
*
* For information on other constants that can be used for debugging,
* visit the Codex.
*
* @link https://codex.wordpress.org/Debugging_in_WordPress
*/
// define( 'WP_DEBUG', true );
// define( 'WP_DEBUG_LOG', true );
/* That's all, stop editing! Happy publishing. */
/** Absolute path to the WordPress directory. */
if ( ! defined( 'ABSPATH' ) ) {
define( 'ABSPATH', dirname( __FILE__ ) . '/' );
}
/** Sets up WordPress vars and included files. */
require_once( ABSPATH . 'wp-settings.php' );
因为我使用的是 composer 和 phpdotnet 插件，所以我也尝试过：
define( 'DB_NAME', getenv('WORDPRESS_DB_NAME'));
...
在错误日志中，我可以看到：
wordpress exited with code 4
上面code 4的错误是由于提供"environment variables"造成的，导致入口点脚本试图为我们修改wp-config.php。
由于code 4是环境变量引起的，有无inspect docker image returns如下（没有env变量）：
[
{
"Id": "sha256:0d91452f5f88a168d9e85e2c4992460e2ef50d66d60c581c3ffc60b78824a416",
"RepoTags": [
"docker_wordpress:latest"
],
"RepoDigests": [],
"Parent": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Comment": "",
"Created": "2019-09-09T22:54:10.8766881Z",
"Container": "20a95e0640aa65d9c1c244cdacf0dae09165c4da3ff19460190dce4cf4a80d8b",
"ContainerConfig": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"PHPIZE_DEPS=autoconf \t\tdpkg-dev \t\tfile \t\tg++ \t\tgcc \t\tlibc-dev \t\tmake \t\tpkg-config \t\tre2c",
"PHP_INI_DIR=/usr/local/etc/php",
"APACHE_CONFDIR=/etc/apache2",
"APACHE_ENVVARS=/etc/apache2/envvars",
"PHP_EXTRA_BUILD_DEPS=apache2-dev",
"PHP_EXTRA_CONFIGURE_ARGS=--with-apxs2 --disable-cgi",
"PHP_CFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_CPPFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_LDFLAGS=-Wl,-O1 -Wl,--hash-style=both -pie",
"GPG_KEYS=CBAF69F173A0FEA4B537F470D66C9593118BCCB6 F38252826ACD957EF380D39F2F7956BC5DA04B5D",
"PHP_VERSION=7.3.9",
"PHP_URL=https://www.php.net/get/php-7.3.9.tar.xz/from/this/mirror",
"PHP_ASC_URL=https://www.php.net/get/php-7.3.9.tar.xz.asc/from/this/mirror",
"PHP_SHA256=4007f24a39822bef2805b75c625551d30be9eeed329d52eb0838fa5c1b91c1fd",
"PHP_MD5=",
"WORDPRESS_VERSION=5.2.3",
"WORDPRESS_SHA1=5efd37148788f3b14b295b2a9bf48a1a467aa303"
],
"Cmd": [
"/bin/sh",
"-c",
"composer require vlucas/phpdotenv"
],
"Image": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Volumes": {
"/var/www/html": {}
},
"WorkingDir": "/var/www/html",
"Entrypoint": null,
"OnBuild": null,
"Labels": null,
"StopSignal": "WINCH"
},
"DockerVersion": "19.03.2",
"Author": "",
"Config": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"PHPIZE_DEPS=autoconf \t\tdpkg-dev \t\tfile \t\tg++ \t\tgcc \t\tlibc-dev \t\tmake \t\tpkg-config \t\tre2c",
"PHP_INI_DIR=/usr/local/etc/php",
"APACHE_CONFDIR=/etc/apache2",
"APACHE_ENVVARS=/etc/apache2/envvars",
"PHP_EXTRA_BUILD_DEPS=apache2-dev",
"PHP_EXTRA_CONFIGURE_ARGS=--with-apxs2 --disable-cgi",
"PHP_CFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_CPPFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_LDFLAGS=-Wl,-O1 -Wl,--hash-style=both -pie",
"GPG_KEYS=CBAF69F173A0FEA4B537F470D66C9593118BCCB6 F38252826ACD957EF380D39F2F7956BC5DA04B5D",
"PHP_VERSION=7.3.9",
"PHP_URL=https://www.php.net/get/php-7.3.9.tar.xz/from/this/mirror",
"PHP_ASC_URL=https://www.php.net/get/php-7.3.9.tar.xz.asc/from/this/mirror",
"PHP_SHA256=4007f24a39822bef2805b75c625551d30be9eeed329d52eb0838fa5c1b91c1fd",
"PHP_MD5=",
"WORDPRESS_VERSION=5.2.3",
"WORDPRESS_SHA1=5efd37148788f3b14b295b2a9bf48a1a467aa303"
],
"Cmd": [
"apache2-foreground"
],
"ArgsEscaped": true,
"Image": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Volumes": {
"/var/www/html": {}
},
"WorkingDir": "/var/www/html",
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": null,
"StopSignal": "WINCH"
},
"Architecture": "amd64",
"Os": "linux",
"Size": 530754564,
"VirtualSize": 530754564,
"GraphDriver": {
"Data": {
...
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
...
]
},
"Metadata": {
"LastTagTime": "2019-09-09T22:54:10.9465719Z"
}
}
]
请记住，我希望文档是正确的，并且上面的设置应该符合环境变量。
以下是帮助我找到解决方案的一些注意事项，希望它能对以后的其他人有所帮助。
首先是我在尝试和看到时发现的问题：
导致上面暴露的错误的第一个 wordpress exited with code 4 是 wp-content.php 在安装到容器中时失败，所以要么是为了允许 "wordpress" entrypoint sh script to modify the file for us or accept will do something else, as tried above, the plugin phpdotenv and $_ENV or getenv fn (https://www.php.net/manual/en/function.getenv.php)
卷挂载在 Docker-compose.yml 文件中并覆盖文件，例如我们尝试复制到容器 WORKDIR 等的文件
Docker-compose 上下文不允许复制其范围之外的文件"The path must be inside the context of the build"
下面你会找到一个对我有用的工作版本 (WIP)，作为默认行为的替代方法，如前所述，默认行为应该得到尊重（我相信重构，考虑到上述几点，考虑到考虑到所有，这可以改进，但让我们把它与将 dotenv 传递给 PHP 联系起来，将来应该对其他人有用。
++++++++++++ docker-compose.yml ++++++++++++++++
version: '3.1'
services:
web:
container_name: web
image: nginx:1.15.11-alpine
volumes:
- ./nginx/foobar.conf:/etc/nginx/conf.d/default.conf
- ../../foobar-blog-ui/public/:/var/www/html/
ports:
- 80:80
- 443:443
networks:
- foobar-wordpress-network
node:
image: node:8.16.0-slim
working_dir: /home/node/app
environment:
- NODE_ENV=development
volumes:
- ../../foobar-blog-ui/:/home/node/app
- ./node_modules:/home/node/app/node_modules
- ./npm/.npmrc:/home/node/app/.npmrc
ports:
- 8000:8000
- 9000:9000
command: bash -c "apt-get update && apt-get install -y rsync vim git libpng-dev libjpeg-dev libxi6 build-essential libgl1-mesa-glx && npm install && exit 0"
depends_on:
- wordpress
networks:
- foobar-wordpress-network
wordpress:
build:
context: ../../
dockerfile: ./.init/Docker/Services/DockerWordpress.yml
container_name: wordpress
restart: on-failure
ports:
- 8888:80
depends_on:
- db
networks:
- foobar-wordpress-network
wordpress-cli:
image: wordpress:cli
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./scripts/docker-entrypoint.sh:/var/www/html/docker-entrypoint.sh
depends_on:
- wordpress
- db
command: sh -c "sleep 30 && ./docker-entrypoint.sh"
networks:
- foobar-wordpress-network
volumes:
node_modules:
networks:
foobar-wordpress-network:
driver: bridge
++++++++++++ docker文件 ++++++++++++++++
FROM wordpress:php7.3-apache
WORKDIR /var/www/html/
COPY ./.init/Docker/.env .
COPY ./foobar-wordpress-cms .
COPY ./.init/Docker/php/uploads.ini /usr/local/etc/php/conf.d/uploads.ini
COPY ./.init/Docker/wordpress/wp-config.php ./wp-config.php
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer && chmod +x /usr/bin/composer
RUN composer require vlucas/phpdotenv
RUN ls -la
以下文章也有帮助（https://vsupalov.com/docker-arg-env-variable-guide/#the-dot-env-file-env）。
Since the code 4 is caused by the environment variables, with or
without the inspect docker image returns the following (does not have
env variables):
您正在混合 dotenv 和 system environment variable 这两种东西。 dotenv 优先级始终低于系统环境变量，您在 docker inspect.
中看不到 dotenv 变量
要在 Docker 中设置环境，它应该在 Docker 文件中 ( docker inspect will work) 或者应该在创建时传递给 运行 命令。
docker exec you_container_name bash -c "printenv" 这将打印系统环境变量，而不是 dotenv.
不变性
By default, Dotenv will NOT overwrite existing environment variables
that are already set in the environment.
If you want Dotenv to overwrite existing environment variables, use
overload instead of load:
$dotenv = Dotenv\Dotenv::create(__DIR__);
$dotenv->overload();
因此，如果 WordPress 不是从 dotenv 中选择或应该从 system 环境变量中选择，我会建议在系统环境中设置 WordPress。
Docker
中的环境变量
在 docker-compose.yml
中设置 .env
环境文件 .env
WORDPRESS_DB_NAME=platform-ops-db
docker-compose.yml
version: '2'
services:
web:
image: nginx:1.15.11-alpine
container_name: web
env_file:
- ./.env
environment:
MYSQL_DATABASE: ${WORDPRESS_DB_NAME}
我们可以在整个应用程序 运行 中使用 WORDPRESS_DB_NAME 容器 web。
对于 运行 代理后面容器中的 Wordpress，请检查 repo conf 文件 Wordpress as a container behind the proxy in the repo Repo
如何使用 Docker 文件中设置的 dotenv 变量传递给 Php 应用程序？
最近尝试使用带有一组键值对的“.env”文件来跨不同的配置文件使用，但注意到 Docker + Wordpress 图像不容易设置。虽然在节点等中设置起来很简单
请参阅下面与 docker-compose.yml:
位于同一目录的“.env”文件WORDPRESS_DB_NAME=wp_xxxx
WORDPRESS_DB_USER=xxxxxx
WORDPRESS_DB_PASSWORD=xxxxxx
WORDPRESS_DB_HOST=xxxxxxxx
此处提供的官方 Wordpress 图片 (https://hub.docker.com/_/wordpress) 记录了 "The following environment variables are also honoured for configuring your WordPress [...] WORDPRESS_DB_USER, WORDPRESS_DB_PASSWORD, etc".
默认情况下，"wp-config.php" 中的配置参数不会被 .env 变量替换，这导致我通过安装 composer 来扩展原始 Wordpress 图像。让我们调用下面的文件 "DockerWordpress.yml":
FROM wordpress:php7.3-apache
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer && chmod +x /usr/bin/composer
RUN composer require vlucas/phpdotenv
在主 Docker-compose.yml 文件中使用，如下所示。查找服务 "Wordpress":
version: '3.1'
services:
web:
container_name: web
image: nginx:1.15.11-alpine
volumes:
- ./nginx/foobar.conf:/etc/nginx/conf.d/default.conf
- ../../foobar-blog-ui/public/:/var/www/html/
ports:
- 80:80
- 443:443
networks:
- foobar-wordpress-network
node:
image: node:8.16.0-slim
working_dir: /home/node/app
environment:
- NODE_ENV=development
volumes:
- ../../foobar-blog-ui/:/home/node/app
- ./node_modules:/home/node/app/node_modules
- ./npm/.npmrc:/home/node/app/.npmrc
ports:
- 8000:8000
- 9000:9000
command: bash -c "apt-get update && apt-get install -y rsync vim git libpng-dev libjpeg-dev libxi6 build-essential libgl1-mesa-glx && npm install && exit 0"
depends_on:
- wordpress
networks:
- foobar-wordpress-network
wordpress:
build:
context: .
dockerfile: ./Services/DockerWordpress.yml
container_name: wordpress
restart: on-failure
ports:
- 8888:80
environment:
WORDPRESS_DB_HOST: ${WORDPRESS_DB_HOST}
WORDPRESS_DB_NAME: ${WORDPRESS_DB_NAME}
WORDPRESS_DB_USER: ${WORDPRESS_DB_USER}
WORDPRESS_DB_PASSWORD: ${WORDPRESS_DB_PASSWORD}
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
- ./wordpress/wp-config.php:/var/www/html/wp-config.php
depends_on:
- db
networks:
- foobar-wordpress-network
wordpress-cli:
image: wordpress:cli
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./scripts/docker-entrypoint.sh:/var/www/html/docker-entrypoint.sh
depends_on:
- wordpress
- db
command: sh -c "sleep 30 && ./docker-entrypoint.sh"
networks:
- foobar-wordpress-network
db:
image: mariadb:latest
ports:
- 3306:3306
restart: on-failure
environment:
MYSQL_DATABASE: ${WORDPRESS_DB_NAME}
MYSQL_USER: ${WORDPRESS_DB_USER}
MYSQL_PASSWORD: ${WORDPRESS_DB_PASSWORD}
# MYSQL_ROOT_HOST: ${WORDPRESS_DB_HOST}
MYSQL_ROOT_HOST: '%'
MYSQL_RANDOM_ROOT_PASSWORD: '1'
volumes:
- ./wordpress/database:/docker-entrypoint-initdb.d
- ./mysql/my.cnf:/etc/mysql/conf.d/my.cnf"
- ./mysql/data:/var/lib/mysql
networks:
- foobar-wordpress-network
healthcheck:
test: ["CMD", "mysqladmin", "-u${WORDPRESS_DB_USER}", "-p${WORDPRESS_DB_PASSWORD}", "ping"]
interval: 60s
timeout: 60s
retries: 3
volumes:
mysql_data:
node_modules:
networks:
foobar-wordpress-network:
driver: bridge
最后，从外部源装载到容器卷中的 "wp-config.php" 文件，正如您在前面的 "docker-compose" 文件中看到的那样。这是通过遵循 defacto 插件提供的文档在 Php 社区中使用 dotEnv 变量 (https://github.com/vlucas/phpdotenv) 来完成的。
<?php
require_once(__DIR__ . './vendor/autoload.php');
(new \Dotenv\Dotenv(__DIR__ . '/../.init/Docker'))->load();
/**
* The base configuration for WordPress
*
* The wp-config.php creation script uses this file during the
* installation. You don't have to use the web site, you can
* copy this file to "wp-config.php" and fill in the values.
*
* This file contains the following configurations:
*
* * MySQL settings
* * Secret keys
* * Database table prefix
* * ABSPATH
*
* @link https://codex.wordpress.org/Editing_wp-config.php
*
* @package WordPress
*/
// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define( 'DB_NAME', '');
/** MySQL database username */
define( 'DB_USER', '');
/** MySQL database password */
define( 'DB_PASSWORD', '');
/** MySQL hostname */
define( 'DB_HOST', '');
/** Database Charset to use in creating database tables. */
define( 'DB_CHARSET', 'utf8');
/** The Database Collate type. Don't change this if in doubt. */
define( 'DB_COLLATE', '');
/**#@+
* Authentication Unique Keys and Salts.
*
* Change these to different unique phrases!
* You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
* You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again.
*
* @since 2.6.0
*/
define( 'AUTH_KEY', 'U(p)0EQ$O;meL`Oe@1$t7nI?<$=|NJ)kb+Shya21)-M2HI#/B#e~:@gX+}h@[LNE' );
define( 'SECURE_AUTH_KEY', 'Qpe;9 Ye^zuSozw@}2*f9mK~]7/V1,gf[^v4=}@ N!$<(q2qI<3U]kNK^P4b)n;7' );
define( 'LOGGED_IN_KEY', 'R=yN?s&Ek8ncd;xuvIHU];2fo#piE[MbF6 63@aP:p1TyZmz#94(>XErht{}6<V,' );
define( 'NONCE_KEY', 'Xr~QqP8%cjPA$] ?m*-CrcjgdfA6Vao>8C/AI6-pi_Y<rI]y=6fKSOS6i/%4F~Xl' );
define( 'AUTH_SALT', '<<7vysQ=uPfNxyl? z=97AyIfm~QNn5%JI7^)bFW&;A`V.5`W2xj+KXJY`_hV66T' );
define( 'SECURE_AUTH_SALT', 'dT-4]:wh_.++<M&L6>&Eywn})wSzy+.`v6eBhl694uF(fc:yp9:?oV! PDbU(ST(' );
define( 'LOGGED_IN_SALT', '3rPPnmKp|dUR=KX{W-TVYH7a:60P7z}$h3jgggKJgn~9XX`)6XuCtzMLjypztu!m' );
define( 'NONCE_SALT', 'X4aAby}iQOenSg7~R@,9+/-mc_lfzq!*RMP+cKOgv0K[{xS73~|k0u:zq>G.My' );
/**#@-*/
/**
* WordPress Database Table prefix.
*
* You can have multiple installations in one database if you give each
* a unique prefix. Only numbers, letters, and underscores please!
*/
$table_prefix = 'wp_';
/**
* For developers: WordPress debugging mode.
*
* Change this to true to enable the display of notices during development.
* It is strongly recommended that plugin and theme developers use WP_DEBUG
* in their development environments.
*
* For information on other constants that can be used for debugging,
* visit the Codex.
*
* @link https://codex.wordpress.org/Debugging_in_WordPress
*/
// define( 'WP_DEBUG', true );
// define( 'WP_DEBUG_LOG', true );
/* That's all, stop editing! Happy publishing. */
/** Absolute path to the WordPress directory. */
if ( ! defined( 'ABSPATH' ) ) {
define( 'ABSPATH', dirname( __FILE__ ) . '/' );
}
/** Sets up WordPress vars and included files. */
require_once( ABSPATH . 'wp-settings.php' );
因为我使用的是 composer 和 phpdotnet 插件，所以我也尝试过：
define( 'DB_NAME', getenv('WORDPRESS_DB_NAME'));
...
在错误日志中，我可以看到：
wordpress exited with code 4
上面code 4的错误是由于提供"environment variables"造成的，导致入口点脚本试图为我们修改wp-config.php。
由于code 4是环境变量引起的，有无inspect docker image returns如下（没有env变量）：
[
{
"Id": "sha256:0d91452f5f88a168d9e85e2c4992460e2ef50d66d60c581c3ffc60b78824a416",
"RepoTags": [
"docker_wordpress:latest"
],
"RepoDigests": [],
"Parent": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Comment": "",
"Created": "2019-09-09T22:54:10.8766881Z",
"Container": "20a95e0640aa65d9c1c244cdacf0dae09165c4da3ff19460190dce4cf4a80d8b",
"ContainerConfig": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"PHPIZE_DEPS=autoconf \t\tdpkg-dev \t\tfile \t\tg++ \t\tgcc \t\tlibc-dev \t\tmake \t\tpkg-config \t\tre2c",
"PHP_INI_DIR=/usr/local/etc/php",
"APACHE_CONFDIR=/etc/apache2",
"APACHE_ENVVARS=/etc/apache2/envvars",
"PHP_EXTRA_BUILD_DEPS=apache2-dev",
"PHP_EXTRA_CONFIGURE_ARGS=--with-apxs2 --disable-cgi",
"PHP_CFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_CPPFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_LDFLAGS=-Wl,-O1 -Wl,--hash-style=both -pie",
"GPG_KEYS=CBAF69F173A0FEA4B537F470D66C9593118BCCB6 F38252826ACD957EF380D39F2F7956BC5DA04B5D",
"PHP_VERSION=7.3.9",
"PHP_URL=https://www.php.net/get/php-7.3.9.tar.xz/from/this/mirror",
"PHP_ASC_URL=https://www.php.net/get/php-7.3.9.tar.xz.asc/from/this/mirror",
"PHP_SHA256=4007f24a39822bef2805b75c625551d30be9eeed329d52eb0838fa5c1b91c1fd",
"PHP_MD5=",
"WORDPRESS_VERSION=5.2.3",
"WORDPRESS_SHA1=5efd37148788f3b14b295b2a9bf48a1a467aa303"
],
"Cmd": [
"/bin/sh",
"-c",
"composer require vlucas/phpdotenv"
],
"Image": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Volumes": {
"/var/www/html": {}
},
"WorkingDir": "/var/www/html",
"Entrypoint": null,
"OnBuild": null,
"Labels": null,
"StopSignal": "WINCH"
},
"DockerVersion": "19.03.2",
"Author": "",
"Config": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"PHPIZE_DEPS=autoconf \t\tdpkg-dev \t\tfile \t\tg++ \t\tgcc \t\tlibc-dev \t\tmake \t\tpkg-config \t\tre2c",
"PHP_INI_DIR=/usr/local/etc/php",
"APACHE_CONFDIR=/etc/apache2",
"APACHE_ENVVARS=/etc/apache2/envvars",
"PHP_EXTRA_BUILD_DEPS=apache2-dev",
"PHP_EXTRA_CONFIGURE_ARGS=--with-apxs2 --disable-cgi",
"PHP_CFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_CPPFLAGS=-fstack-protector-strong -fpic -fpie -O2",
"PHP_LDFLAGS=-Wl,-O1 -Wl,--hash-style=both -pie",
"GPG_KEYS=CBAF69F173A0FEA4B537F470D66C9593118BCCB6 F38252826ACD957EF380D39F2F7956BC5DA04B5D",
"PHP_VERSION=7.3.9",
"PHP_URL=https://www.php.net/get/php-7.3.9.tar.xz/from/this/mirror",
"PHP_ASC_URL=https://www.php.net/get/php-7.3.9.tar.xz.asc/from/this/mirror",
"PHP_SHA256=4007f24a39822bef2805b75c625551d30be9eeed329d52eb0838fa5c1b91c1fd",
"PHP_MD5=",
"WORDPRESS_VERSION=5.2.3",
"WORDPRESS_SHA1=5efd37148788f3b14b295b2a9bf48a1a467aa303"
],
"Cmd": [
"apache2-foreground"
],
"ArgsEscaped": true,
"Image": "sha256:73c390be73f955ac64e67751faba8095ed0d31a98a3eb841ea38be6a81d9bd02",
"Volumes": {
"/var/www/html": {}
},
"WorkingDir": "/var/www/html",
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": null,
"StopSignal": "WINCH"
},
"Architecture": "amd64",
"Os": "linux",
"Size": 530754564,
"VirtualSize": 530754564,
"GraphDriver": {
"Data": {
...
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
...
]
},
"Metadata": {
"LastTagTime": "2019-09-09T22:54:10.9465719Z"
}
}
]
请记住，我希望文档是正确的，并且上面的设置应该符合环境变量。
以下是帮助我找到解决方案的一些注意事项，希望它能对以后的其他人有所帮助。
首先是我在尝试和看到时发现的问题：
导致上面暴露的错误的第一个
wordpress exited with code 4是 wp-content.php 在安装到容器中时失败，所以要么是为了允许 "wordpress" entrypoint sh script to modify the file for us or accept will do something else, as tried above, the plugin phpdotenv and $_ENV or getenv fn (https://www.php.net/manual/en/function.getenv.php)卷挂载在 Docker-compose.yml 文件中并覆盖文件，例如我们尝试复制到容器 WORKDIR 等的文件
Docker-compose 上下文不允许复制其范围之外的文件"The path must be inside the context of the build"
下面你会找到一个对我有用的工作版本 (WIP)，作为默认行为的替代方法，如前所述，默认行为应该得到尊重（我相信重构，考虑到上述几点，考虑到考虑到所有，这可以改进，但让我们把它与将 dotenv 传递给 PHP 联系起来，将来应该对其他人有用。
++++++++++++ docker-compose.yml ++++++++++++++++
version: '3.1'
services:
web:
container_name: web
image: nginx:1.15.11-alpine
volumes:
- ./nginx/foobar.conf:/etc/nginx/conf.d/default.conf
- ../../foobar-blog-ui/public/:/var/www/html/
ports:
- 80:80
- 443:443
networks:
- foobar-wordpress-network
node:
image: node:8.16.0-slim
working_dir: /home/node/app
environment:
- NODE_ENV=development
volumes:
- ../../foobar-blog-ui/:/home/node/app
- ./node_modules:/home/node/app/node_modules
- ./npm/.npmrc:/home/node/app/.npmrc
ports:
- 8000:8000
- 9000:9000
command: bash -c "apt-get update && apt-get install -y rsync vim git libpng-dev libjpeg-dev libxi6 build-essential libgl1-mesa-glx && npm install && exit 0"
depends_on:
- wordpress
networks:
- foobar-wordpress-network
wordpress:
build:
context: ../../
dockerfile: ./.init/Docker/Services/DockerWordpress.yml
container_name: wordpress
restart: on-failure
ports:
- 8888:80
depends_on:
- db
networks:
- foobar-wordpress-network
wordpress-cli:
image: wordpress:cli
volumes:
- ../../foobar-wordpress-cms/:/var/www/html
- ./scripts/docker-entrypoint.sh:/var/www/html/docker-entrypoint.sh
depends_on:
- wordpress
- db
command: sh -c "sleep 30 && ./docker-entrypoint.sh"
networks:
- foobar-wordpress-network
volumes:
node_modules:
networks:
foobar-wordpress-network:
driver: bridge
++++++++++++ docker文件 ++++++++++++++++
FROM wordpress:php7.3-apache
WORKDIR /var/www/html/
COPY ./.init/Docker/.env .
COPY ./foobar-wordpress-cms .
COPY ./.init/Docker/php/uploads.ini /usr/local/etc/php/conf.d/uploads.ini
COPY ./.init/Docker/wordpress/wp-config.php ./wp-config.php
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer && chmod +x /usr/bin/composer
RUN composer require vlucas/phpdotenv
RUN ls -la
以下文章也有帮助（https://vsupalov.com/docker-arg-env-variable-guide/#the-dot-env-file-env）。
Since the code 4 is caused by the environment variables, with or without the inspect docker image returns the following (does not have env variables):
您正在混合 dotenv 和 system environment variable 这两种东西。 dotenv 优先级始终低于系统环境变量，您在 docker inspect.
dotenv 变量
要在 Docker 中设置环境，它应该在 Docker 文件中 ( docker inspect will work) 或者应该在创建时传递给 运行 命令。
docker exec you_container_name bash -c "printenv" 这将打印系统环境变量，而不是 dotenv.
不变性
By default, Dotenv will NOT overwrite existing environment variables that are already set in the environment.
If you want Dotenv to overwrite existing environment variables, use overload instead of load:
$dotenv = Dotenv\Dotenv::create(__DIR__);
$dotenv->overload();
因此，如果 WordPress 不是从 dotenv 中选择或应该从 system 环境变量中选择，我会建议在系统环境中设置 WordPress。
Docker
中的环境变量在 docker-compose.yml
.env
环境文件 .env
WORDPRESS_DB_NAME=platform-ops-db
docker-compose.yml
version: '2'
services:
web:
image: nginx:1.15.11-alpine
container_name: web
env_file:
- ./.env
environment:
MYSQL_DATABASE: ${WORDPRESS_DB_NAME}
我们可以在整个应用程序 运行 中使用 WORDPRESS_DB_NAME 容器 web。
对于 运行 代理后面容器中的 Wordpress，请检查 repo conf 文件 Wordpress as a container behind the proxy in the repo Repo