Docker PHP应用程序示例

Docker PHP应用程序示例

我们可以使用docker运行php应用程序。 在以下步骤中,将使用创建Docker并运行php应用程序。

  1. 创建一个目录

使用以下命令创建一个目录来组织配置和PHP代码文件。

zyiz@ubuntu:~$ mkdir /home/zyiz/docker/php-docker-app
  1. 创建一个PHP文件

创建一个名称为:index.php的PHP文件(vi /home/zyiz/docker/php-docker-app/index.php),内容如下 -

<?php  
    echo "This is first PHP Script build by docker.";
?>
  1. 创建一个 Dockerfile 文件
FROM php:7.0-apache  
COPY . /var/www/html 
RUN rm -rf /etc/apache2/sites-enabled/000-default.conf

创建上面文件之后(vi /home/zyiz/docker/php-docker-app/Dockerfile),项目有两个文件,如下面所示 -

zyiz@ubuntu:~$ cd /home/zyiz/docker/php-docker-app/
zyiz@ubuntu:~/docker/php-docker-app$ ll
total 16
drwxrwxr-x 2 zyiz zyiz 4096 Jun  3 20:10 ./
drwxrwxr-x 4 zyiz zyiz 4096 Jun  3 20:08 ../
-rw-rw-r-- 1 zyiz zyiz   44 Jun  3 20:10 Dockerfile
-rw-rw-r-- 1 zyiz zyiz   66 Jun  3 20:08 index.php
zyiz@ubuntu:~/docker/php-docker-app$

注意:Dockerfile文件的名称要区分大小写。

  1. 创建Docker映像
zyiz@ubuntu:~/docker/php-docker-app$ docker build -t php-app .

在下面的屏幕截图中,是正在创建docker映像的输出。

zyiz@ubuntu:~/docker/php-docker-app$ sudo docker build -t php-app .
Sending build context to Docker daemon  3.072kB
Step 1/2 : FROM php:7.0-apache
7.0-apache: Pulling from library/php
10a267c67f42: Downloading  23.79MB/52.58MB
10a267c67f42: Pull complete
370377701f89: Pull complete
455c73a122bc: Pull complete
fb71bac61c47: Pull complete
288a1d91ad4e: Pull complete
86e0256ba4b0: Pull complete
f14fbe7a9dfb: Pull complete
0f36dd91c0ab: Pull complete
ee4d938396ab: Pull complete
a0e5f6ef63c3: Pull complete
4d3b68c01e8a: Pull complete
855c8caa7af5: Pull complete
cd53b61c5ad7: Pull complete
Digest: sha256:9bec874758f731e5e4e2908744a5e2abfc8bbb6c94425b8abd8d6ef3b5938288
Status: Downloaded newer image for php:7.0-apache
 ---> a4322279ced1
Step 2/2 : COPY . /var/www/html
 ---> c2e626f9d9c6
Removing intermediate container 9a44af0ee1bb
Successfully built c2e626f9d9c6
Successfully tagged php-app:latest
zyiz@ubuntu:~/docker/php-docker-app$

现在可以看看Docker容器中所有可用的映像。使用 docker images -

zyiz@ubuntu:~/docker/php-docker-app$ sudo docker images
[sudo] password for zyiz:
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
php-app             latest              c2e626f9d9c6        16 minutes ago      390MB
java-app            latest              bd61e7f49911        21 hours ago        643MB
php                 7.0-apache          a4322279ced1        30 hours ago        390MB
java                8                   d23bdf5b1b1b        4 months ago        643MB
hello-world         latest              48b5124b2768        4 months ago        1.84kB
zyiz@ubuntu:~/docker/php-docker-app$

上面的输出结果中,它显示了所有创建的可用映像中,包函了php-app

  1. 运行Docker映像

现在运行Docker映像,以下命令用于运行Docker映像。

$ sudo docker run php-app

可以看到我们的Docker映像正在运行。此映像正在IP为172.17.0.2上运行,现在打开浏览器或使用curl 172.17.0.2 访问测试。

zyiz@ubuntu:~/docker/php-docker-app$ sudo docker build -t php-app .
Sending build context to Docker daemon  4.096kB
Step 1/3 : FROM php:7.0-apache
 ---> a4322279ced1
Step 2/3 : COPY . /var/www/html
 ---> 67b4cdd58ecc
Removing intermediate container 506cd5be7ef3
Step 3/3 : RUN rm -rf /etc/apache2/sites-enabled/000-default.conf
 ---> Running in 3e0751150765
 ---> 7bd0234c2184
Removing intermediate container 3e0751150765
Successfully built 7bd0234c2184
Successfully tagged php-app:latest
zyiz@ubuntu:~/docker/php-docker-app$ sudo docker run php-app
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
[Sun Jun 04 04:28:11.305554 2017] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.10 (Debian) PHP/7.0.19 configured -- resuming normal operations
[Sun Jun 04 04:28:11.305706 2017] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
172.17.0.2:80 172.17.0.1 - - [04/Jun/2017:04:28:23 +0000] "GET / HTTP/1.1" 200 216 "-" "curl/7.47.0"

打开另一个终端,访问:curl 172.17.0.2 输出结果如下 -

zyiz@ubuntu:~$ curl 172.17.0.2
This is first PHP Script build by docker.
zyiz@ubuntu:~$