前言
使用容器化技术如 Docker 可以极大地简化应用程序的部署和管理过程，本文将介绍如何利用 Docker 构建 LNMP 环境，并通过部署 WordPress 来展示这一过程。
目录
3. 准备 php.ini、php-fpm.conf、www.conf 配置文件
一、环境准备
1. 项目需求
（1）使用 Docker 构建 LNMP 环境并运行 Wordpress 网站平台
（2）限制 Nginx 容器最多使用 512Mb 的内存和 1G 的 Swap
（3）限制 Mysql 容器写 /dev/sda 的速率为 10 MB/s
（4）将所有容器进行快照，然后将 Docker 镜像打包成 tar 包备份到本地
2. 安装包下载
wget https://cdn.mysql.com//archives/mysql-5.7/mysql-boost-5.7.20.tar.gz
wget http://nginx.org/download/nginx-1.12.0.tar.gz
wget https://www.php.net/distributions/php-7.1.10.tar.bz2
wget https://cn.wordpress.org/wordpress-4.9.4-zh_CN.tar.gz3. 服务器环境
| 容器名 | 宿主机系统/配置 | IP地址 | Docker版本 | 基于镜像 | 安装软件 |
| nginx | Centos 7.4；4C/8G | 172.19.8.10 | 20.10.17 | centos:7 | Docker-Nginx Docker-Wordpress |
| mysql | Centos 7.4；4C/8G | 172.19.8.20 | 20.10.17 | centos:7 | Docker-Mysql |
| php | Centos 7.4；4C/8G | 172.19.8.30 | 20.10.17 | centos:7 | Docker-php |
安装 docker-ce-20.10.17：
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
# 安装所需的依赖
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# 添加Docker官方仓库，正常后面还是用国内阿里源更合适
sudo yum makecache fast
# 更新Yum缓存
sudo yum install docker-ce-20.10.17 docker-ce-cli-20.10.17 containerd.io
# 安装Docker CE 20.10.17
sudo systemctl start docker
sudo systemctl enable docker
# 启动并启用Docker服务
docker --version
# 验证安装4. 规划工作目录
[root@localhost ~]# tree /lnmp/ -L 2
/lnmp/
├── images
│ ├── mysql_image.tar
│ ├── nginx_image.tar
│ └── php_image.tar
├── mysql
│ ├── Dockerfile
│ ├── my.cnf
│ └── mysql-boost-5.7.20.tar.gz
├── nginx
│ ├── Dockerfile
│ ├── html
│ ├── nginx-1.12.0.tar.gz
│ ├── nginx.conf
│ └── wordpress-4.9.4-zh_CN.tar.gz
└── php
├── Dockerfile
├── php-7.1.10.tar.bz2
├── php-fpm.conf
├── php.ini
└── www.conf5. 创建自定义网络
创建了一个名为 mynetwork 的自定义 Docker 网络，子网为 172.19.0.0/16，并指定了桥接名称为 docker1。
[root@localhost ~]# docker network create --subnet=172.19.0.0/16 --opt "com.docker.network.bridge.name"="docker1" mynetwork
d2b40d071ba33351aeb1d4a6a8d9738fb6fb7a01991bd26c8fdb7244fce3819f
[root@localhost ~]# docker network ls | grep mynetwork
d2b40d071ba3 mynetwork bridge local
[root@localhost ~]# docker inspect d2b40d071ba3 | grep -i subnet
"Subnet": "172.19.0.0/16"
# 可以看到网络的子网是172.19.0.0/16二、Nginx 镜像创建
1. 建立工作目录
[root@localhost ~]# mkdir /lnmp/{nginx,mysql,php} -p
[root@localhost nginx]# ls
nginx-1.12.0.tar.gz wordpress-4.9.4-zh_CN.tar.gz # 准备安装包
[root@localhost nginx]# mkdir html/
[root@localhost nginx]# tar zxvf wordpress-4.9.4-zh_CN.tar.gz -C /lnmp/nginx/html
[root@localhost nginx]# cd html/;ls
wordpress
[root@localhost html]# cd wordpress/;ls
index.php wp-admin wp-content wp-load.php wp-signup.php
license.txt wp-blog-header.php wp-cron.php wp-login.php wp-trackback.php
readme.html wp-comments-post.php wp-includes wp-mail.php xmlrpc.php
wp-activate.php wp-config-sample.php wp-links-opml.php wp-settings.php
# 准备 wordpress 网站文件2. 编写 Dockerfile 文件
[root@localhost wordpress]# cd ../..
[root@localhost nginx]# vim Dockerfile
FROM centos:7 # 基于centOS:7镜像作为基础镜像
MAINTAINER nginx image <fql> # 指定镜像的维护者信息
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make # yum安装必要的软件包至镜像；
RUN useradd -M -s /sbin/nologin nginx # 创建nginx的系统用户，且无法登录系统
ADD nginx-1.12.0.tar.gz /usr/local/src/ # 将nginx文件解压到/usr/local/src/目录下
WORKDIR /usr/local/src/nginx-1.12.0 # 工作目录切换
RUN ./configure \ # 配置、编译并安装Nginx，指定安装路径、用户、用户组以及使用了 with-http_sub_status_module 模块
--prefix=/usr/local/nginx \
--user=nginx \
--group=nginx \
--with-http_stub_status_module && make -j 4 && make instal
ENV PATH /usr/local/nginx/sbin:$PATH # 将Nginx可执行文件路径添加到环境变量中
ADD nginx.conf /usr/local/nginx/conf/ # 将宿主机当前目录nginx.conf配置文件复制到镜像指定目录
#ADD wordpress-4.9.4-zh_CN.tar.gz /usr/local/nginx/html/
RUN chmod 777 -R /usr/local/nginx/html/ # 授权
EXPOSE 80 # 暴露容器的80端口，http
EXPOSE 443 # 暴露容器的443端口，https
VOLUME [ "/usr/local/nginx/html/" ] # 在Docker内创建挂载点
ENTRYPOINT [ "/usr/local/nginx/sbin/nginx", "-g", "daemon off;" ]
# 启动Nginx并以非守护进程方式运行3. 准备 nginx.conf 配置文件
[root@localhost nginx]# egrep -v "^(.)*#(.)*$" nginx.conf | grep -v "^$"
# 从文件nginx.conf中过滤掉以#开头的注释行和空行，然后输出剩余的非注释非空行内容
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
charset utf-8;
location / {
root html;
index index.html index.php;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location ~ \.php$ { # 指定了匹配请求URI以.php结尾的条件，~表示使用正则表达式匹配
root html; # 查找文件的根目录为html
fastcgi_pass 172.19.0.30:9000; # Nginx将把.php文件发送到172.19.0.30上的FastCGI服务器的9000端口
fastcgi_index index.php; # 当请求URI以/结尾时，Nginx应该使用的默认文件
fastcgi_param SCRIPT_FILENAME /usr/local/nginx/html$fastcgi_script_name;
# 这个参数告诉FastCGI服务器要执行的PHP脚本的路径。$fastcgi_script_name是一个FastCGI变量，代表请求的文件路径
include fastcgi_params; # 包含了一个外部文件fastcgi_params
}
}
}
# 根据请求的URI找到对应的PHP文件，将请求发送给FastCGI服务器进行处理，并设置一些FastCGI参数。这样可以实现在Nginx服务器上运行PHP脚本的功能。4. 生成镜像
[root@localhost nginx]# docker build -t nginx:lnmp .
[root@localhost nginx]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx lnmp b0ab50b55dac 43 seconds ago 569MB
nginx latest 7383c266ef25 4 days ago 188MB
centos 7 eeb6ee3f44bd 2 years ago 204MB
5. 启动镜像容器
限制 Nginx 容器最多使用 512Mb 的内存和 1G 的 Swap：
[root@localhost nginx]# docker run -d --name nginx -p 80:80 -m 512M --memory-swap=1G -v /lnmp/nginx/html:/usr/local/nginx/html --net mynetwork --ip 172.19.0.10 nginx:lnmp
30bac7a9755929001177b15047c39680cc0a26ea8ddf17ea32fd31045b3c6aa1
[root@localhost nginx]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
30bac7a97559 nginx:lnmp "/usr/local/nginx/sb…" 50 seconds ago Up 48 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp, 443/tcp nginx
[root@localhost nginx]# docker inspect nginx
"Gateway": "172.19.0.1",
"IPAddress": "172.19.0.10",
[root@localhost nginx]# docker stats
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
30bac7a97559 nginx 0.00% 952KiB / 512MiB 0.18% 2.41kB / 0B 0B / 0B 26. 验证 nginx
在宿主机目录建立html文件：
[root@localhost nginx]# echo nginx welcome > html/index.html
三、Mysql 镜像创建
1. 进入工作目录
[root@localhost nginx]# cd ../mysql/
[root@localhost mysql]# ls
mysql-boost-5.7.20.tar.gz # 准备安装包
2. 编写 Dockerfile 文件
[root@localhost mysql]# vim Dockerfile
FROM centos:7
MAINTAINER mysql image <fql>
RUN yum -y install gcc gcc-c++ ncurses ncurses-devel bison cmake make
ADD mysql-boost-5.7.20.tar.gz /usr/local/src/ # 将MySQL源代码包解压缩到镜像/usr/local/src/目录下
WORKDIR /usr/local/src/mysql-5.7.20/ # 设置工作目录为MySQL源代码包的目录
RUN cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DSYSCONFDIR=/etc \
-DSYSTEMD_PID_DIR=/usr/local/mysql \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DWITH_BOOST=boost \
-DWITH_SYSTEMD=1 && make -j 4 && make install
ADD my.cnf /etc/
ENV PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH # 将MySQL的可执行文件路径添加到环境变量中
RUN useradd -M -s /sbin/nologin mysql
RUN chown mysql:mysql /etc/my.cnf
RUN chown -R mysql:mysql /usr/local/mysql/
RUN /usr/local/mysql/bin/mysqld \ # 运行MySQL的初始化命令，初始化MySQL数据库
--initialize-insecure \
--user=mysql \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data
EXPOSE 3306
CMD ["/usr/local/mysql/bin/mysqld"] # 启动MySQL数据库服务3. 准备 my.cnf 文件
[root@localhost mysql]# cat my.cnf
[client]
port = 3306
socket=/usr/local/mysql/mysql.sock
[mysql]
port = 3306
socket = /usr/local/mysql/mysql.sock
auto-rehash
[mysqld]
user = mysql
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
character-set-server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket=/usr/local/mysql/mysql.sock
bind-address = 0.0.0.0
skip-name-resolve
max_connections=2048
default-storage-engine=INNODB
max_allowed_packet=16M
server-id = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES4. 生成镜像
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=container error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache
# 如果遇到类似dns问题，可修改dns、替换阿里源尝试解决
[root@localhost mysql]# docker build -t mysql:lnmp .
[root@localhost mysql]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mysql lnmp 2b328d4ecd04 About a minute ago 10.1GB
nginx lnmp b0ab50b55dac 2 hours ago 569MB
5. 启动镜像容器
限制 Mysql 容器写 /dev/sda 的速率为 10 MB/s：
[root@localhost mysql]# docker run --name=mysql -d --privileged --device-write-bps /dev/sda:10M -v /usr/local/mysql -P --net mynetwork --ip 172.19.0.20 mysql:lnmp
ddd452f38b116b7c01a85676837933d25cacb53e65e2a61f36e43e7725544bae
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS
7da2cc6a302c nginx:lnmp "/usr/local/nginx/sb…" About an hour ago Up 15 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp, 443/tcp nginx
817aedefb6f6 mysql:lnmp "/usr/local/mysql/bi…" About an hour ago Up 14 minutes 0.0.0.0:49153->3306/tcp, :::49153->3306/tcp mysql
测试IO：
[root@localhost mysql]# docker exec -it mysql /bin/bash
[root@ddd452f38b11 mysql-5.7.20]# dd if=/dev/zero of=test bs=20M count=5 oflag=direct
5+0 records in
5+0 records out
104857600 bytes (105 MB) copied, 9.97887 s, 10.5 MB/s
# 速率限制是近似值，并且在实际应用中可能会有一些波动6. 验证 mysql
容器登录：
[root@localhost mysql]# docker exec -it mysql /bin/bash
[root@ddd452f38b11 mysql-5.7.20]# mysql -uroot -p # 默认没有密码，直接回车
mysql>
远程登录：
[root@slave01 ~]# mysql -u root -h 192.168.190.108 -P 49153 -p'abc123'
mysql>四、Php 镜像创建
1. 进入工作目录
[root@localhost mysql]# cd ../php/
[root@localhost php]# ls
php-7.1.10.tar.bz2 # 准备安装包2. 编写 Dockerfile 文件
[root@localhost php]# vim Dockerfile
FROM centos:7
MAINTAINER php image <fql>
RUN yum -y install gd \ # 安装一系列依赖包
libjpeg libjpeg-devel \
libpng libpng-devel \
freetype freetype-devel \
libxml2 libxml2-devel \
zlib zlib-devel \
curl curl-devel \
openssl openssl-devel \
gcc gcc-c++ make pcre-devel
RUN useradd -M -s /sbin/nologin nginx
ADD php-7.1.10.tar.bz2 /usr/local/src/ # 将php文件解压并复制到/usr/local/src/目录下
WORKDIR /usr/local/src/php-7.1.10 # 设置工作目录
RUN ./configure \ # 配置PHP编译选项
--prefix=/usr/local/php \
--with-mysql-sock=/usr/local/mysql/mysql.sock \
--with-mysqli \
--with-zlib \
--with-curl \
--with-gd \
--with-jpeg-dir \
--with-png-dir \
--with-freetype-dir \
--with-openssl \
--enable-fpm \
--enable-mbstring \
--enable-xml \
--enable-session \
--enable-ftp \
--enable-pdo \
--enable-tokenizer \
--enable-zip && make -j 4 && make install
ENV PATH /usr/local/php/bin:/usr/local/php/sbin:$PATH # 将PHP可执行文件路径添加到系统PATH中
ADD php.ini /usr/local/php/lib/
ADD php-fpm.conf /usr/local/php/etc/
ADD www.conf /usr/local/php/etc/php-fpm.d/
EXPOSE 9000 # 暴露容器的9000端口，用于PHP-FPM服务
ENTRYPOINT [ "/usr/local/php/sbin/php-fpm", "-F" ] # 启动PHP-FPM服务并以守护进程方式运行3. 准备 php.ini、php-fpm.conf、www.conf 配置文件
- php.ini 用于配置 PHP 的运行时参数和特性
- php-fpm.conf 用于配置 PHP-FPM 的全局行为和进程管理
- www.conf 用于配置 PHP-FPM 的进程池参数，如进程数和管理方式
[root@localhost php]# ls
Dockerfile php-7.1.10.tar.bz2 php-fpm.conf php.ini www.conf
3.1 php.ini
[root@localhost php]# vim php.ini
939 date.timezone = Asia/Shanghai # 取消注释，修改
1170 mysqli.default_socket = /usr/local/mysql/mysql.sock
# MySQL数据库的默认socket文件路径，用于PHP连接MySQL数据库时寻找MySQL服务器的通信端口
[root@localhost php]# egrep -v "^;" php.ini | egrep -v "^$"
# 显示php.ini文件中的非注释和非空行内容，即显示出配置文件中的有效配置项
[PHP]
engine = On
short_open_tag = Off
precision = 14
output_buffering = 4096
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = -1
disable_functions =
disable_classes =
zend.enable_gc = On
expose_php = On
max_execution_time = 30
max_input_time = 60
memory_limit = 128M
error_reporting = E_ALL
display_errors = On
display_startup_errors = On
log_errors = On
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
track_errors = On
html_errors = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 8M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 2M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
[CLI Server]
cli_server.color = On
[Date]
date.timezone = Asia/Shanghai
[filter]
[iconv]
[intl]
[sqlite3]
[Pcre]
[Pdo]
[Pdo_mysql]
pdo_mysql.cache_size = 2000
pdo_mysql.default_socket=
[Phar]
[mail function]
SMTP = localhost
smtp_port = 25
mail.add_x_header = On
[SQL]
sql.safe_mode = Off
[ODBC]
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
[Interbase]
ibase.allow_persistent = 1
ibase.max_persistent = -1
ibase.max_links = -1
ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
ibase.dateformat = "%Y-%m-%d"
ibase.timeformat = "%H:%M:%S"
[MySQLi]
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.cache_size = 2000
mysqli.default_port = 3306
mysqli.default_socket = /usr/local/mysql/mysql.sock
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
[mysqlnd]
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = On
[OCI8]
[PostgreSQL]
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
[bcmath]
bcmath.scale = 0
[browscap]
[Session]
session.save_handler = files
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
session.sid_bits_per_character = 5
[Assertion]
zend.assertions = 1
[COM]
[mbstring]
[gd]
[exif]
[Tidy]
tidy.clean_output = Off
[soap]
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
[sysvshm]
[ldap]
ldap.max_links = -1
[mcrypt]
[dba]
[opcache]
[curl]
[openssl]3.2 php-fpm.conf
[root@localhost php]# vim php-fpm.conf
17 pid = run/php-fpm.pid # 删除注释符号“;”
[root@localhost php]# egrep -v "^;" php-fpm.conf | egrep -v "^$"
[global]
pid = run/php-fpm.pid
include=/usr/local/php/etc/php-fpm.d/*.conf3.3 www.conf
[root@localhost php]# vim www.conf
23 user = nginx
24 group = nginx
36 listen = 172.19.0.30:9000 # 修改监听IP和端口为容器IP:9000端口
[root@localhost php]# egrep -v "^;" www.conf | egrep -v "^$"
[www]
user = nginx
group = nginx
listen = 172.19.0.30:9000
listen.allowed_clients = 127.0.0.1,172.19.0.10
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
4. 生成镜像
[root@localhost php]# docker build -t php:lnmp .
[root@localhost php]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
php lnmp 39e39b251e20 24 seconds ago 1.4GB
mysql lnmp 2b328d4ecd04 44 minutes ago 10.1GB
nginx lnmp b0ab50b55dac 2 hours ago 569MB
5. 启动镜像容器
[root@localhost php]# docker run --name=php -d -p 9000:9000 --volumes-from mysql --volumes-from nginx --net mynetwork --ip 172.19.0.30 php:lnmp
5e91e0162badda54ad70cb39240b3b7e633b5764ad12830edad17f6c152645d9
[root@localhost php]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5e91e0162bad php:lnmp "/usr/local/php/sbin…" 5 seconds ago Up 3 seconds 0.0.0.0:9000->9000/tcp, :::9000->9000/tcp php
ddd452f38b11 mysql:lnmp "/usr/local/mysql/bi…" 43 minutes ago Up 43 minutes 3306/tcp mysql
30bac7a97559 nginx:lnmp "/usr/local/nginx/sb…" 2 hours ago Up About an hour 0.0.0.0:80->80/tcp, :::80->80/tcp, 443/tcp nginx6. 验证 php
[root@localhost php]# docker exec -it php /bin/bash
[root@5e91e0162bad php-7.1.10]# ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 113028 7520 ? Ss 09:39 0:00 php-fpm: master process (/usr/loc
nginx 8 0.0 0.0 113028 3768 ? S 09:39 0:00 php-fpm: pool www
nginx 9 0.0 0.0 113028 3768 ? S 09:39 0:00 php-fpm: pool www
root 10 1.5 0.0 11828 1880 pts/0 Ss 09:46 0:00 /bin/bash
root 24 0.0 0.0 51732 1724 pts/0 R+ 09:46 0:00 ps -aux
7. 进入容器登录 mysql 授权
[root@localhost php]# docker exec -it mysql /bin/bash
[root@ddd452f38b11 mysql-5.7.20]# mysql
mysql> create database wordpress;
mysql> grant all privileges on wordpress.* to 'wordpress'@'%' identified by '123456';
mysql> grant all privileges on *.* to 'root'@'%' identified by 'abc123';
mysql> flush privileges;8. 创建一个新的配置文件 wp-config.php
[root@localhost ~]# cd /lnmp/nginx/html/wordpress
[root@localhost wordpress]# cp wp-config-sample.php wp-config.php
[root@localhost wordpress]# vim wp-config.php
define('DB_NAME', 'wordpress');
define('DB_USER', 'wordpress');
define('DB_PASSWORD', '123456');
# 修改WordPress数据库信息9. 浏览器访问 wordpress
http://192.168.190.108/wordpress/index.php
五、Docker 镜像打包
1. 基本信息
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b4d901f2bccc php:lnmp "/bin/sh -c '/usr/lo…" 30 minutes ago Up 11 minutes 0.0.0.0:9000->9000/tcp, :::9000->9000/tcp php
7da2cc6a302c nginx:lnmp "/usr/local/nginx/sb…" About an hour ago Up 12 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp, 443/tcp nginx
817aedefb6f6 mysql:lnmp "/usr/local/mysql/bi…" About an hour ago Up 11 minutes 0.0.0.0:49153->3306/tcp, :::49153->3306/tcp mysql
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
php lnmp d36e706ae5d6 31 minutes ago 1.4GB
nginx lnmp a6b0e83b8ff8 About an hour ago 569MB
mysql lnmp 2b328d4ecd04 5 hours ago 10.1GB
2. 容器导出
[root@localhost ~]# mkdir /lnmp/images
[root@localhost ~]# cd /lnmp/images/
[root@localhost images]# docker export nginx > nginx_image.tar
[root@localhost images]# docker export mysql > mysql_image.tar
[root@localhost images]# docker export php > php_image.tar
[root@localhost images]# ll -h
总用量 9.4G
-rw-r--r--. 1 root root 7.6G 4月 28 22:11 mysql_image.tar
-rw-r--r--. 1 root root 503M 4月 28 22:06 nginx_image.tar
-rw-r--r--. 1 root root 1.3G 4月 28 22:13 php_image.tar