Centos 7 制作 鏡像

1、拉取基礎鏡象

docker pull centos:7      

2、檢視鏡象

[root@kvm108 ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/centos    7                   5e35e350aded        5 months ago        203 MB      

3、建立容器

docker run --privileged -it -p 8080:80 -d 5e35e350aded /usr/sbin/init

# --privileged       root權限
# -d 5e35e350aded    鏡像 ID
# -p 8080:80         端口映射，後面要裝nginx      

4、檢視容器

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                  NAMES
80e052bb4c83        5e35e350aded        "/usr/sbin/init"    7 seconds ago       Up 6 seconds        0.0.0.0:8080->80/tcp   pensive_albattani      

5、進入容器

docker exec -it 80e052bb4c83 /bin/bash      

 6、安裝 Nginx

# 配置 nginx yum 源
vi /etc/yum.repos.d/nginx.repo
 

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1
 
# 安裝
yum install nginx -y

# 啟動
systemctl start nginx

# 成功通路
curl http://localhost      

7、安裝 PHP

# 安裝 相關
yum install epel-release -y
rpm -ivh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

# 安裝 PHP
yum install php71w php71w-fpm \
php71w-cli php71w-common php71w-devel php71w-gd \
php71w-pdo php71w-mysql php71w-mbstring php71w-bcmath \
php71w-pecl-redis

# 啟動
systemctl start php-fpm


# 修改配置檔案

vi /etc/nginx/conf.d/default.conf

server {
    listen       80;
    server_name  localhost;

    root   /opt/www;
    index  index.php index.html index.htm;

    location ~ \.php$ {
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }
}

# 測試頁
echo "<?php phpinfo(); ?>" > /opt/www/info.php

# 成功通路
curl http://localhost/info.php      

8、安裝 MySQL

wget http://repo.mysql.com/mysql57-community-release-el7-9.noarch.rpm

rpm -ivh mysql-community-release-el6-5.noarch.rpm

# 安裝
yum install mysql-community-server.x86_64

# 啟動
systemctl start mysqld


# vi /opt/www/conn.php

<?php

$servername = "127.0.0.1";
$username = "root";
$password = "Abc@123456";

$conn = mysqli_connect($servername, $username, $password);

if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}

echo "success"

?>      

9、通過容器建構鏡象

# 檢視鏡象
docker ps -a

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                  NAMES
80e052bb4c83        5e35e350aded        "/usr/sbin/init"    2 hours ago         Up 2 hours          0.0.0.0:8080->80/tcp   pensive_albattani

# 建構鏡象
docker commit 80e052bb4c83 lnmp

# 80e052bb4c83    容器名
# lnmp            鏡象名      

10、檢視鏡象

docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
lnmp                latest              0448509551fc        53 seconds ago      1.56 GB
docker.io/centos    7                   5e35e350aded        5 months ago        203 MB      

docker save -o lnmp.tar lnmp

# 檢視
[root@kvm113 ~]# ll

-rw-------  1 root root 376077312 4月  27 17:14 lnmp.tar      

[root@vm73 ~]# scp [email protected]:/root/lnmp.tar /home/

# 檢視
[root@vm73 ~]# ll /home/
-rw------- 1 root root 376077312 4月  27 17:19 lnmp.tar

# 加載
[root@vm73 ~]# docker load -i /home/lnmp.tar

# 檢視鏡象
[root@vm73 ~]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
lnmp               latest              947680f32a52        39 minutes ago      365MB

# 運作容器
docker run --name lnmp -it -d lnmp /bin/bash

# 進入容器
[root@vm73 ~]# docker exec -it lnmp /bin/bash