在下層目錄中使用Docker運行WordPress
背景 –
-
- 色々やり方がでてきますがやりたいことが微妙に違うので備忘録として。
-
- WordPressをAPIとして使いたいが、APIサーバーは分けたくない。
- 下層ディレクトリwpにDockerを使用してWordPressをインストールしたいときに環境構築に若干躓いた。
环境
-
- macOS Mojave
- Docker for Mac
我想做的事情 (Wǒ zuò de
-
- 公式のWordPressイメージだとドキュメント直下にしかWordPressを置けない
- そのためdocker-compose.ymlとdocker-entrypoint.shを編集する
docker-compose.yml文件的配置
version: "3.3"
services:
db:
image: mysql:5.7
volumes:
- db_data:/var/lib/mysql
restart: always
environment:
MYSQL_ROOT_PASSWORD: somewordpress
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress
wordpress:
depends_on:
- db
volumes:
- ./:/var/www/html
- ./docker-entrypoint.sh:/usr/local/bin/docker-entrypoint.sh
image: wordpress:latest
working_dir: /var/www/html
ports:
- 80:80
restart: always
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
WORDPRESS_SUBDIRECTORY: wp
node: # 使わないなら不要
image: node:8.15.1-alpine #Nodeは各々のVersionで
user: node
working_dir: /home/node/app
volumes:
- ./:/home/node/app #package.jsonがあるディレクトリをmount
volumes:
db_data: {}
docker-entrypoint.sh 的含义是 Docker 的入口脚本。
根据公式的docker-entrypoint.sh进行编辑。
#!/bin/bash
set -euo pipefail
# usage: file_env VAR [DEFAULT]
# ie: file_env 'XYZ_DB_PASSWORD' 'example'
# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
# "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
file_env() {
local var="$1"
local fileVar="${var}_FILE"
local def="${2:-}"
if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
exit 1
fi
local val="$def"
if [ "${!var:-}" ]; then
val="${!var}"
elif [ "${!fileVar:-}" ]; then
val="$(< "${!fileVar}")"
fi
export "$var"="$val"
unset "$fileVar"
}
if [[ "$1" == apache2* ]] || [ "$1" == php-fpm ]; then
+追加 if ! [ -z "$WORDPRESS_SUBDIRECTORY" ]; then
+追加 # force relative path
+追加 WORDPRESS_SUBDIRECTORY=`echo $WORDPRESS_SUBDIRECTORY | sed 's/^\///g'`
+追加 mkdir -p $WORDPRESS_SUBDIRECTORY
+追加 cd $WORDPRESS_SUBDIRECTORY
+追加 fi
if [ "$(id -u)" = '0' ]; then
case "$1" in
apache2*)
user="${APACHE_RUN_USER:-www-data}"
group="${APACHE_RUN_GROUP:-www-data}"
# strip off any '#' symbol ('#1000' is valid syntax for Apache)
pound='#'
user="${user#$pound}"
group="${group#$pound}"
;;
*) # php-fpm
user='www-data'
group='www-data'
;;
esac
else
user="$(id -u)"
group="$(id -g)"
fi
if [ ! -e index.php ] && [ ! -e wp-includes/version.php ]; then
# if the directory exists and WordPress doesn't appear to be installed AND the permissions of it are root:root, let's chown it (likely a Docker-created directory)
if [ "$(id -u)" = '0' ] && [ "$(stat -c '%u:%g' .)" = '0:0' ]; then
chown "$user:$group" .
fi
echo >&2 "WordPress not found in $PWD - copying now..."
if [ -n "$(ls -A)" ]; then
echo >&2 "WARNING: $PWD is not empty! (copying anyhow)"
fi
sourceTarArgs=(
--create
--file -
--directory /usr/src/wordpress
--owner "$user" --group "$group"
)
targetTarArgs=(
--extract
--file -
)
if [ "$user" != '0' ]; then
# avoid "tar: .: Cannot utime: Operation not permitted" and "tar: .: Cannot change mode to rwxr-xr-x: Operation not permitted"
targetTarArgs+=( --no-overwrite-dir )
fi
tar "${sourceTarArgs[@]}" . | tar "${targetTarArgs[@]}"
echo >&2 "Complete! WordPress has been successfully copied to $PWD"
if [ ! -e .htaccess ]; then
# NOTE: The "Indexes" option is disabled in the php:apache base image
cat > .htaccess <<-'EOF'
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
EOF
chown "$user:$group" .htaccess
fi
fi
# allow any of these "Authentication Unique Keys and Salts." to be specified via
# environment variables with a "WORDPRESS_" prefix (ie, "WORDPRESS_AUTH_KEY")
uniqueEnvs=(
AUTH_KEY
SECURE_AUTH_KEY
LOGGED_IN_KEY
NONCE_KEY
AUTH_SALT
SECURE_AUTH_SALT
LOGGED_IN_SALT
NONCE_SALT
)
envs=(
WORDPRESS_DB_HOST
WORDPRESS_DB_USER
WORDPRESS_DB_PASSWORD
WORDPRESS_DB_NAME
WORDPRESS_DB_CHARSET
WORDPRESS_DB_COLLATE
"${uniqueEnvs[@]/#/WORDPRESS_}"
WORDPRESS_TABLE_PREFIX
WORDPRESS_DEBUG
WORDPRESS_CONFIG_EXTRA
)
haveConfig=
for e in "${envs[@]}"; do
file_env "$e"
if [ -z "$haveConfig" ] && [ -n "${!e}" ]; then
haveConfig=1
fi
done
# linking backwards-compatibility
if [ -n "${!MYSQL_ENV_MYSQL_*}" ]; then
haveConfig=1
# host defaults to "mysql" below if unspecified
: "${WORDPRESS_DB_USER:=${MYSQL_ENV_MYSQL_USER:-root}}"
if [ "$WORDPRESS_DB_USER" = 'root' ]; then
: "${WORDPRESS_DB_PASSWORD:=${MYSQL_ENV_MYSQL_ROOT_PASSWORD:-}}"
else
: "${WORDPRESS_DB_PASSWORD:=${MYSQL_ENV_MYSQL_PASSWORD:-}}"
fi
: "${WORDPRESS_DB_NAME:=${MYSQL_ENV_MYSQL_DATABASE:-}}"
fi
# only touch "wp-config.php" if we have environment-supplied configuration values
if [ "$haveConfig" ]; then
: "${WORDPRESS_DB_HOST:=mysql}"
: "${WORDPRESS_DB_USER:=root}"
: "${WORDPRESS_DB_PASSWORD:=}"
: "${WORDPRESS_DB_NAME:=wordpress}"
: "${WORDPRESS_DB_CHARSET:=utf8}"
: "${WORDPRESS_DB_COLLATE:=}"
# version 4.4.1 decided to switch to windows line endings, that breaks our seds and awks
# https://github.com/docker-library/wordpress/issues/116
# https://github.com/WordPress/WordPress/commit/1acedc542fba2482bab88ec70d4bea4b997a92e4
sed -ri -e 's/\r$//' wp-config*
if [ ! -e wp-config.php ]; then
awk '
/^\/\*.*stop editing.*\*\/$/ && c == 0 {
c = 1
system("cat")
if (ENVIRON["WORDPRESS_CONFIG_EXTRA"]) {
print "// WORDPRESS_CONFIG_EXTRA"
print ENVIRON["WORDPRESS_CONFIG_EXTRA"] "\n"
}
}
{ print }
' wp-config-sample.php > wp-config.php <<'EOPHP'
// If we're behind a proxy server and using HTTPS, we need to alert WordPress of that fact
// see also http://codex.wordpress.org/Administration_Over_SSL#Using_a_Reverse_Proxy
if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
$_SERVER['HTTPS'] = 'on';
}
EOPHP
chown "$user:$group" wp-config.php
elif [ -e wp-config.php ] && [ -n "$WORDPRESS_CONFIG_EXTRA" ] && [[ "$(< wp-config.php)" != *"$WORDPRESS_CONFIG_EXTRA"* ]]; then
# (if the config file already contains the requested PHP code, don't print a warning)
echo >&2
echo >&2 'WARNING: environment variable "WORDPRESS_CONFIG_EXTRA" is set, but "wp-config.php" already exists'
echo >&2 ' The contents of this variable will _not_ be inserted into the existing "wp-config.php" file.'
echo >&2 ' (see https://github.com/docker-library/wordpress/issues/333 for more details)'
echo >&2
fi
# see http://stackoverflow.com/a/2705678/433558
sed_escape_lhs() {
echo "$@" | sed -e 's/[]\/$*.^|[]/\\&/g'
}
sed_escape_rhs() {
echo "$@" | sed -e 's/[\/&]/\\&/g'
}
php_escape() {
local escaped="$(php -r 'var_export(('"$2"') $argv[1]);' -- "$1")"
if [ "$2" = 'string' ] && [ "${escaped:0:1}" = "'" ]; then
escaped="${escaped//$'\n'/"' + \"\\n\" + '"}"
fi
echo "$escaped"
}
set_config() {
key="$1"
value="$2"
var_type="${3:-string}"
start="(['\"])$(sed_escape_lhs "$key")\2\s*,"
end="\);"
if [ "${key:0:1}" = '$' ]; then
start="^(\s*)$(sed_escape_lhs "$key")\s*="
end=";"
fi
sed -ri -e "s/($start\s*).*($end)$/\1$(sed_escape_rhs "$(php_escape "$value" "$var_type")")\3/" wp-config.php
}
set_config 'DB_HOST' "$WORDPRESS_DB_HOST"
set_config 'DB_USER' "$WORDPRESS_DB_USER"
set_config 'DB_PASSWORD' "$WORDPRESS_DB_PASSWORD"
set_config 'DB_NAME' "$WORDPRESS_DB_NAME"
set_config 'DB_CHARSET' "$WORDPRESS_DB_CHARSET"
set_config 'DB_COLLATE' "$WORDPRESS_DB_COLLATE"
for unique in "${uniqueEnvs[@]}"; do
uniqVar="WORDPRESS_$unique"
if [ -n "${!uniqVar}" ]; then
set_config "$unique" "${!uniqVar}"
else
# if not specified, let's generate a random value
currentVal="$(sed -rn -e "s/define\(\s*(([\'\"])$unique\2\s*,\s*)(['\"])(.*)\3\s*\);/\4/p" wp-config.php)"
if [ "$currentVal" = 'put your unique phrase here' ]; then
set_config "$unique" "$(head -c1m /dev/urandom | sha1sum | cut -d' ' -f1)"
fi
fi
done
if [ "$WORDPRESS_TABLE_PREFIX" ]; then
set_config '$table_prefix' "$WORDPRESS_TABLE_PREFIX"
fi
if [ "$WORDPRESS_DEBUG" ]; then
set_config 'WP_DEBUG' 1 boolean
fi
if ! TERM=dumb php -- <<'EOPHP'
<?php
// database might not exist, so let's try creating it (just to be safe)
$stderr = fopen('php://stderr', 'w');
// https://codex.wordpress.org/Editing_wp-config.php#MySQL_Alternate_Port
// "hostname:port"
// https://codex.wordpress.org/Editing_wp-config.php#MySQL_Sockets_or_Pipes
// "hostname:unix-socket-path"
list($host, $socket) = explode(':', getenv('WORDPRESS_DB_HOST'), 2);
$port = 0;
if (is_numeric($socket)) {
$port = (int) $socket;
$socket = null;
}
$user = getenv('WORDPRESS_DB_USER');
$pass = getenv('WORDPRESS_DB_PASSWORD');
$dbName = getenv('WORDPRESS_DB_NAME');
$maxTries = 10;
do {
$mysql = new mysqli($host, $user, $pass, '', $port, $socket);
if ($mysql->connect_error) {
fwrite($stderr, "\n" . 'MySQL Connection Error: (' . $mysql->connect_errno . ') ' . $mysql->connect_error . "\n");
--$maxTries;
if ($maxTries <= 0) {
exit(1);
}
sleep(3);
}
} while ($mysql->connect_error);
if (!$mysql->query('CREATE DATABASE IF NOT EXISTS `' . $mysql->real_escape_string($dbName) . '`')) {
fwrite($stderr, "\n" . 'MySQL "CREATE DATABASE" Error: ' . $mysql->error . "\n");
$mysql->close();
exit(1);
}
$mysql->close();
EOPHP
then
echo >&2
echo >&2 "WARNING: unable to establish a database connection to '$WORDPRESS_DB_HOST'"
echo >&2 ' continuing anyways (which might have unexpected results)'
echo >&2
fi
fi
# now that we're definitely done writing configuration, let's clear out the relevant envrionment variables (so that stray "phpinfo()" calls don't leak secrets from our code)
for e in "${envs[@]}"; do
unset "$e"
done
fi
exec "$@"
进行动作
docker-compose up -d
执行后，可以通过访问localhost/wp来打开WordPress安装页面。
如果出现错误
chmod +x docker-entrypoint.sh
执行。
使用Node时
docker-compose run node npm install
请执行等命令。
以下是参考的简述：
– Reference
– 用作参考
– 参照
– 参考资料
使用Docker官方的WordPress镜像，在下层目录中运行现有的WordPress。非常感谢借鉴Docker入门指南（实际上，这篇文章更加出色）。
