docker镜像创建 2 ——实战(SSHDLNMP)

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实验1 构建ssh镜像容器

#创建sshd的工作目录
mkdir /opt/sshd
cd /opt/sshd
vim Dockerfile

.............................................
#第一行必须指明基于的基础镜像
FROM centos:7

#作者信息.
MAINTAINER this is ssh image <lp>

#镜像的操作指令
RUN yum -y update
RUN yum -y install openssh* net-tools lsof telnet passwd
RUN echo  123456 | passwd --stdin root 
RUN sed -i  s/UsePAM yes/UsePAM no/g /etc/ssh/sshd_config         #不使用PAM认证
RUN sed -ri  /^session\\s+required\\s+pam loginuid.so/ s/^/#/ /etc/pam.d/sshd     #取消pam限制

RUN ssh- keygen -t rsa -A            #生成密钥认证文件
RUN mkdir -p /root/.ssh && chown root.root /root && chmod 700 /root/.ssh              
EXPOSE 22
CMD ["/usr/sbin/sshd" ,"-D"]             #/usr/sbin/sshd -D用于前台启动sshd服务
..............................................................

//生成镜像,千万注意"."不要忘记了!不是多打的字符
#记得在工作目录下生成镜像哦!
docker build -t sshd:centos .

//启动容器并修改root密码

docker run -d -P sshd: centos

docker ps -a

ssh localhost -p 
(然后输入密码123456;我dockerfile里面设置得就行)
#第一次有警告,记得yes

创建sshd的工作目录

编写dockerfile文件

然后在/opt/sshd目录当中创建镜像

显示创建镜像成功

运行这个镜像用ps -a 检查是否启动

使用ssh localhost -p 登录sshd容器

构建完成sshd的容器后,下面再容器中构建sshd的Systemctl镜像来查看信息状态

#创建systemctl
mkdir /opt/systemctl
cd /opt/systemctl
vim Dockerfile

.....................................
FROM sshd:centos
MAINTAINER this is systemctl image <zjh>
ENV container docker

#除了systemd-tmpfiles-setup.service,删除其它所有文件
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i;done); \\

rm -f /lib/systemd/system/multi-user.target.wants/*; \\ 
rm -f /etc/systemd/system/*.wants/*; \\
rm -f /lib/systemd/system/local-fs.target.wants/*; \\
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \\
rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \\
rm -f /lib/systemd/system/basic.target.wants/*;\\
rm -f /lib/systemd/system/anaconda.target.wants/*;
VOLUME [ "/sys/fs/cgroup" ]

#CMD ["/usr/sbin/init"]

//生成镜像

docker build -t systemd:centos .

//启动容器,并挂载宿主机目录挂载到容器中,和进行初始化

docker run --privileged -d -P -v /sys/fs/cgroup:/sys/fs/cgroup:ro systemd:centos /sbin/init

#--privileged: 使container内的root拥有真正的root权限。 否则,container内的root只是外部的一 个普通用户权限。
docker ps -a

//进入容器

docker exec -it f4a367e951b8 bash

systemctl status sshd

创建工作目录,根据上面的sshd:centos继续堆

完成后出来在/opt/systemctl目录中构建镜像

启动镜像,查看ps -a 是否正常运行

进入到这个镜像当中,使用systemcrl命令来查看sshd的状态,或者使用systemctl命令来操作sshd的状态

实验 构建docker容器-LNMP(实战项目)

环境:(docker ip)
192.168.100.1 nginx doc01
192.168.100.2 mysql doc02
192.168.100.3 php doc03
默认所有机器关闭防火墙、配好yum

```html/xml
首先部署nginx
#部署自定义网络,部署nginx(容器IP 为 192.168.100.1
#容器ip是容器ip,ens33实体网卡ip是另外一个ip,别搞混了!!!
docker network create --subnet=192.168.100.0/24 --opt "com.docker.network.bridge.name"="docker1" mynetwork

#创建工作目录
mkdir /opt/nginx
cd /opt/nginx/

#上传 nginx-1.12.0.tar.gz、wordpress-4.9.4-zh_CN.tar.gz、nginx.conf配置文件 到 /opt/nginx/ 目录中

mkdir /opt/nginx/html #创建相应文件给nginx解压
tar zxvf wordpress-4.9.4-zh_CN.tar.gz -C /opt/nginx/html

vim Dockerfile
.........................................................

FROM centos:7
MAINTAINER this is nginx image <zjh>
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make
RUN useradd -M -s /sbin/nologin nginx
ADD nginx-1.12.0.tar.gz /usr/local/src/
WORKDIR /usr/local/src/nginx-1.12.0
RUN ./configure \\
--prefix=/usr/local/nginx \\
--user=nginx \\
--group=nginx \\
--with-http_stub_status_module && make && make install
ENV PATH /usr/local/nginx/sbin:$PATH
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
EXPOSE 443
CMD nginx -g "daemon off;"

.............................................................
#创建nginx镜像
docker build -t nginx:lnmp .

#运行容器docker run -d --name nginx -p 80:80 -v /opt/nginx/html:/usr/local/nginx/html --net mynetwork --ip 192.168.100.1 nginx:lnmp

提示:如果没现成配置文件,自己改
修改nginx配置文件(与php的docker IP对接)
在本机或者其他主机安装nginx,把nginx配置文件移进本机
vim nginx.conf
...
location /
root html;
index index.html index.php;

...
location ~ .php$
root html
(这行修改!) fastcgi_pass 172.18.0.30:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/local/nginx/html$fastcgi_script_name;
include fastcgi_params;

...

首先是创建自定义网络,然后创建nginx的工作目录,然后切换进去吧nginx-1.12.0.tar.gz、wordpress-4.9.4-zh_CN.tar.gz、nginx.conf配置文件传进去(nginx.conf自己先配好)
![1.png](https://s2.51cto.com/images/20220309/1646833437184496.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
随后我们创建相应文件给nginx解压,解压文件即可
![2.png](https://s2.51cto.com/images/20220309/1646833506975415.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
下面是在 /opt/nginx/里创建dockerfile文件

![3.1.png](https://s2.51cto.com/images/20220309/1646833556144569.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
成功创建镜像文件
![3.png](https://s2.51cto.com/images/20220309/1646833587310035.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
![3.2.png](https://s2.51cto.com/images/20220309/1646833591834327.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
运行镜像,然后就把他运行起来就行
![4.png](https://s2.51cto.com/images/20220309/1646833608871090.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

```html/xml
下面我们创建mysql-docker02
192.168.100.2

#部署mysql(容器IP 为 192.168.100.2)
mkdir /opt/mysqld
cd /opt/mysqld

上传 mysql-boost-5.7.20.tar.gz 和mysql.conf到 /opt/mysqld 目录中

vim Dockerfile
........................

FROM centos:7
MAINTAINER this is mysql image <zjh 2022-03-10>
RUN yum -y install gcc gcc-c++ ncurses ncurses-devel bison cmake make
RUN 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_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  && make install
RUN chown -R mysql:mysql /usr/local/mysql/
ADD my.cnf /etc/my.cnf
RUN chown mysql:mysql /etc/my.cnf
ENV PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
WORKDIR /usr/local/mysql/
RUN bin/mysqld \\
--initialize-insecure \\
--user=mysql \\
--basedir=/usr/local/mysql \\
--datadir=/usr/local/mysql/data
RUN cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/
EXPOSE 3306
RUN systemctl enable mysqld
VOLUME [ "/usr/local/mysql" ]
CMD /usr/sbin/init

...........................................

下面是进行my.cnf配置文件修改
vim my.cnf
.........................................
3.在当前目录创建mysql配置文件
vim my.cnf
[client]
port = 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock

[mysql]
port = 3306
default-character-set=utf8
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
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

..............................................

docker build -t mysql:lnmp .

docker run --name=mysql -d --privileged -v /usr/local/mysql --net mynetwork --ip 192.168.100.2 mysql:lnmp /usr/sbin/init

首先是创建目录,然后传文件进去

vim my.cnf 进去如图所示配置

然后是vim Dockerfile,如图所示填写dockerfile文件(上面有文字版)

docker build -t mysql:lnmp . (开始创建镜像文件,然后成功)

创建自定义网络192.168.100.2

```html/xml
#部署php(容器IP 为 192.168.100.3)

mkdir /opt/php
cd /opt/php

上传 php-7.1.10.tar.bz2 到 /opt/php 目录中

vim Dockerfile

。。。。。。。。。。。。。。
FROM centos:7
MAINTAINER this is php image <zjh>
RUN yum -y install 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
RUN 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 && 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
..............................
首先是php-fpm.conf
修改 pid = php-fpm.conf

然后是vim php.ini
修改mysqli.default_socket = /usr/local/ mysqL/mysqL.sock
修改 date. timezone = Asia/Shanghai

最后是 vim www.conf
修改:
user= nginx
group = nginx

linten = 172.18.0.30:9000 (php)

#创建镜像
docker build -t php:lnmp .
#自定义网络
docker run --name=php -d -p 9000:9000 --volumes-from mysql --volumes-from nginx --net mynetwork --ip 192.168.100.3 php:lnmp

最后一步:进入mysql授权
docker exec -it mysql /bin/bash

mysql
create database wordpress;
grant all privileges on wordpress. to wordpress@% identified by 123456;
grant all privileges on
.* to root@% identified by abc123;
flush privileges;

浏览器访问:
http://192.168.206.3/wordpress/index.php



![1.png](https://s2.51cto.com/images/20220310/1646892499795665.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

制作dockerfile文件
![2.png](https://s2.51cto.com/images/20220310/1646892504767799.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
运行镜像
![2.1.png](https://s2.51cto.com/images/20220310/1646892519512285.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
![3.png](https://s2.51cto.com/images/20220310/1646892529832450.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

运行容器
![4.png](https://s2.51cto.com/images/20220310/1646892535949912.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
制作mysql数据库
![5.png](https://s2.51cto.com/images/20220310/1646892546480783.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

刷新数据库
![5.1.png](https://s2.51cto.com/images/20220310/1646892557661782.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)
![5.2.png](https://s2.51cto.com/images/20220310/1646892565953237.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

#浏览器访问
http://192.168.206.3/wordpress/index.php
即可

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