目录
3. 准备php.ini、php-fpm.conf、www.conf配置文件
一、项目模拟
1. 项目环境
公司在实际的生产环境中,需要使用Docker技术在一台主机上创建LNMP服务并运行Wordpress网站平台。然后对此服务进行相关的性能调优和管理工作。
2. 服务器环境
容器 | 操作系统 | IP地址 | 主要软件 |
---|---|---|---|
nginx | CentOS 7.9 x86_64 | 172.111.0.10 | Docker-Nginx |
mysql | Centos 7.9 x86_64 | 172.111.0.20 | Docker-Mysql |
php | Centos 7.9 x86_64 | 172.111.0.30 | Docker-php |
3. 任务需求
(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500Mb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。
二、Linux系统基础镜像
[root@docker ~]# systemctl disable --now firewalld
[root@docker ~]# setenforce 0
[root@docker ~]# docker pull centos:7
#从公有仓库中下载centos 7作为系统基础镜像
[root@docker ~]# docker images
三、Nginx
1. 建立工作目录
[root@docker ~]# mkdir /opt/nginx
[root@docker ~]# cd /opt/nginx
[root@docker nginx]# rz -E
rz waiting to receive.
#上传nginx安装包nginx-1.12.0.tar.gz
[root@docker nginx]# rz -E
rz waiting to receive.
#上传wordpress服务包wordpress-4.9.4-zh_CN.tar.gz
2. 编写Dockerfile脚本
[root@docker nginx]# vim Dockerfile
FROM centos:7
#基础镜像是CentOS 7
MAINTAINER this is nginx image <lnmp>
#设置镜像的维护者信息。
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make;useradd -M -s /sbin/nologin nginx
#安装Nginx编译所需的依赖和工具。
#创建一个名为nginx的系统用户,该用户没有登录shell,并且没有家目录。
ADD nginx-1.12.0.tar.gz /usr/local/src/
#将当前目录下的nginx-1.12.0.tar.gz文件添加到镜像的/usr/local/src/目录下。
WORKDIR /usr/local/src/nginx-1.12.0
#设置工作目录为/usr/local/src/nginx-1.12.0
RUN ./configure \
--prefix=/usr/local/nginx \
--user=nginx \
--group=nginx \
--with-http_stub_status_module;make -j4 && make install
#编译和安装Nginx。这里使用了4个线程来并行编译,-j4是make的一个选项。
ENV PATH /usr/local/nginx/sbin:$PATH
设置环境变量,将Nginx的sbin目录添加到PATH中。
ADD nginx.conf /usr/local/nginx/conf/
ADD wordpress-4.9.4-zh_CN.tar.gz /usr/local/nginx/html
RUN chmod 777 -R /usr/local/nginx/html/
EXPOSE 80
VOLUME [ "/usr/local/nginx/html/" ]
CMD [ "/usr/local/nginx/sbin/nginx","-g","daemon off;" ]
3. 准备nginx.conf配置文件
[root@docker nginx]# ls
Dockerfile nginx-1.12.0.tar.gz nginx.conf wordpress-4.9.4-zh_CN.tar.gz
[root@docker nginx]# egrep -v "^(.)*#(.)*$" nginx.conf | grep -v "^$"
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
charset utf-8;
location / {
root html;
index index.html index.php;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
location ~ \.php$ {
root html;
fastcgi_pass 172.111.0.30:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/local/nginx/html$fastcgi_script_name;
include fastcgi_params;
}
}
}
4. 生成镜像
[root@docker nginx]# docker build -t nginx:lnmp .
[root@docker nginx]# docker images
5. 创建自定义网络
[root@docker nginx]# docker network create --subnet=172.111.0.0/16 --opt "com.docker.network.bridge.name"="docker0" mynetwork
6. 启动镜像容器
[root@docker nginx]# docker run -d --name nginx -p 80:80 -m 500m --memory-swap 1g --net mynetwork --ip 172.111.0.10 nginx:lnmp
57616d4ea225c82a50b731472b003dabfd681e8dc6c6ef85a9bb2f665354334b
[root@docker nginx]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
57616d4ea225 nginx:lnmp "/usr/local/nginx/sb…" 13 seconds ago Up 12 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp nginx
[root@docker nginx]# docker inspect nginx
······
"IPv4Address": "172.111.0.10"
7. 验证nginx
[root@docker nginx]# curl http://192.168.122.10:80
四、Mysql
1. 建立工作目录
[root@docker nginx]# mkdir /opt/mysql
[root@docker nginx]# cd /opt/mysql/
[root@docker mysql]# rz -E
rz waiting to receive.
#传入mysql安装包mysql-boost-5.7.20.tar.gz
2. 编写Dockerfile
[root@docker mysql]# vim Dockerfile
FROM centos:7
MAINTAINER this is mysql image <lnmp>
RUN yum -y install ncurses ncurses-devel bison cmake pcre-devel zlib-devel gcc gcc-c++ make;useradd -M -s /sbin/nologin mysql
ADD mysql-boost-5.7.20.tar.gz /usr/local/src/
WORKDIR /usr/local/src/mysql-5.7.20/
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_EXTRA_CHARSETS=all \
-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 -j4;make install
ADD my.cnf /etc/my.cnf
EXPOSE 3306
RUN chown -R mysql:mysql /usr/local/mysql/;chown mysql:mysql /etc/my.cnf
WORKDIR /usr/local/mysql/bin/
RUN ./mysqld \
--initialize-insecure \
--user=mysql \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data;cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/;systemctl enable mysqld
ENV PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
VOLUME [ "/usr/local/mysql" ]
CMD ["/usr/sbin/init"]
3. 准备my.cnf文件
[root@docker mysql]# vim my.cnf
[client]
port = 3306
socket=/usr/local/mysql/mysql.sock
[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_QUOTES
4. 生成镜像
[root@docker nysql]# docker build -t mysql:lnmp .
[root@docker mysql]# docker run --name=mysql -d --privileged --device-write-bps /dev/sda:10M -v /usr/local/mysql --net mynetwork --ip 172.111.0.20 mysql:lnmp
[root@docker mysql]# docker ps -a
五、Php
1. 建立工作目录
[root@docker mysql]# mkdir ../php
[root@docker mysql]# cd ../php/
[root@docker php]# rz -E
rz waiting to receive.
#传入php安装包php-7.1.10.tar.bz2
2. 编写Dockerfile脚本
[root@docker php]# vim Dockerfile
FROM centos:7
MAINTAINER this is php image <lnmp>
RUN yum install -y gd \
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;useradd -M -s /sbin/nologin nginx
ADD php-7.1.10.tar.bz2 /usr/local/src/
WORKDIR /usr/local/src/php-7.1.10
RUN ./configure \
--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:$PATH
ADD php.ini /usr/local/php/lib/
ADD php-fpm.conf /usr/local/php/etc/
ADD www.conf /usr/local/php/etc/php-fpm.d/
EXPOSE 9000
CMD /usr/local/php/sbin/php-fpm -F
3. 准备php.ini、php-fpm.conf、www.conf配置文件
从其他机器安装php后,scp配置文件到容器宿主机并进行修改
3.1 php.ini
该配置文件模板位于安装目录的php-7.1.10/php.ini-development位置
[root@docker php]# vim php.ini
#939行,取消注释,修改
date.timezone = Asia/Shanghai
#1170行,修改
mysqli.default_socket = /usr/local/mysql/mysql.sock
[root@docker php]# egrep -v "^;" php.ini | egrep -v "^$"
3.2 php-fpm.conf
该配置文件位于/usr/local/php/etc/php-fpm.conf.default
[root@docker php]# vim php-fpm.conf
#17行,删除注释符号“;”
pid = run/php-fpm.pid
[root@docker php]# egrep -v "^;" php-fpm.conf | egrep -v "^$"
3.3 www.conf
该配置文件位于usr/local/php/etc/php-fpm.d/www.conf.default
[root@docker php]# vim www.conf
#23、24行,修改用户和组
user = nginx
group = nginx
#36行,修改监听IP和端口为容器IP:9000端口
listen = 172.111.0.30:9000
[root@docker php]# egrep -v "^;" www.conf | egrep -v "^$"
4. 生成镜像
[root@docker php]# docker build -t php:lnmp .
[root@docker php]# docker images
5. 启动镜像容器
[root@docker php]# docker run -itd --name php --net mynetwork --ip 172.111.0.30 -p 9000:9000 --volumes-from nginx --volumes-from mysql php:lnmp
954d8ecdd6c7d47270fe15ce4ad6db9c4a5396f42f9d111315ecee69358a9566
[root@docker php]# docker ps -a
6. 验证php
[root@docker php]# docker exec -it php bash
[root@954d8ecdd6c7 php-7.1.10]# ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 113028 9536 pts/0 Ss+ 06:00 0:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
nginx 7 0.0 0.0 113028 5780 pts/0 S+ 06:00 0:00 php-fpm: pool www
nginx 8 0.0 0.0 113028 5784 pts/0 S+ 06:00 0:00 php-fpm: pool www
root 9 0.2 0.0 11828 1888 pts/1 Ss 06:01 0:00 bash
root 23 0.0 0.0 51732 1728 pts/1 R+ 06:01 0:00 ps -aux
六、启动wordpress服务
1. mysql授权
[root@ebafbdc1c4dc bin]# mysql -u root -p
Enter password:
#初始密码为空
mysql> create database wordpress;
Query OK, 1 row affected (0.00 sec)
mysql> grant all privileges on wordpress.* to 'wordpress'@'%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> grant all privileges on *.* to 'root'@'%' identified by '123456';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
2. 浏览器访问测试
访问http://192.168.80.116/wordpress/index.php