您的位置：首页 > 运维架构 > Docker

【Docker构建】- Nginx创建带Nginx服务的Centos Docker镜像

2017-07-06 23:02 726 查看
Nginx是一个高性能的Web和反向代理服务器，它具有很多非常优越的特性，下面我就分步骤向大家介绍如何创建带Nginx服务的Centos Docker镜像.
基础镜像：
[root@localhost ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
sshd-centos         latest              64136bdc0cc8        45 hours ago        261.8 MB
centos              latest              0f73ae75014f        5 weeks ago         172.3 MB
1
2
3
4
1
2
3
4
其中镜像sshd-centos是以镜像centos为基础的开放SSH服务的镜像。 

第一部分，手工配置并生成镜像
一 、以镜像sshd-centos为基础新建容器，并指定容器的ssh端口22映射到宿主机的2222端口上
docker run -d -p 2222:22 sshd-centos /usr/sbin/sshd -D
1
1
查看容器运行情况：
[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS              PORTS                  NAMES
ed9361b598c8        sshd-centos         "/usr/sbin/sshd -D"   16 minutes ago      Up 16 minutes       0.0.0.0:2222->22/tcp   distracted_mclean
1
2
3
1
2
3
二、在宿主机上通过ssh登录容器
ssh localhost -p 2222
1
1
如果提示没有ssh命令请安装openssh-clients
yum install -y openssh-clients
1
1
三、下载Nginx源码包，编译安装 

1、安装wget
yum install -y wget
1
1
2、下载源码包
cd /usr/local/src
wget http://nginx.org/download/nginx-1.8.0.tar.gz[/code]1 2
1
2
3、解压源码包
tar -zxvf nginx-1.8.0.tar.gz
cd nginx-1.8.0
1
2
1
2
4、安装gcc 、make编译器和Nginx依赖包 

由于下载的docker镜像是简化版，所以连最基本的gcc和make都没有带，只好自已安装； 同时需要安装Nginx依赖包pcre和zlib
yum install -y gcc make pcre-devel zlib-devel
1
1
5、编译
./configure   --prefix=/usr/local/nginx   --with-pcre

make
make install
1
2
3
4
1
2
3
4
四，启动nginx服务
/usr/local/nginx/sbin/nginx
1
1
查看是安装是否正常，能否访问默认页:
[root@ed9361b598c8 nginx-1.8.0]# curl localhost
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
测试成功！
五，修改Ngnix配置文件 

设置生成容器时，Nginx以非daemon启动
echo "\ndaemon off;">>/usr/local/nginx/conf/nginx.conf
1
1
六、编写启动ssh和Nginx服务的脚本
cd /usr/local/sbin
vi run.sh
1
2
1
2
脚本内容
#!/bin/bash
/usr/sbin/sshd &
/usr/local/nginx/sbin/nginx
1
2
3
1
2
3
改变脚本权限，使其可以运行
chmod 755 run.sh
1
1
七、创建带有Nginx和ssh服务的镜像 

1、查看当前容器的 Container ID
[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS              PORTS                  NAMES
ed9361b598c8        sshd-centos         "/usr/sbin/sshd -D"   16 minutes ago      Up 16 minutes       0.0.0.0:2222->22/tcp   distracted_mclean
1
2
3
1
2
3
2、根据容器CONTAINER ID生成新的镜像
docker commit ed9361b598c8 nginx:centos
1
1
3、查看新生成的镜像
[root@localhost ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
nginx               centos              b61204959427        10 seconds ago      369.9 MB
sshd-centos         latest              64136bdc0cc8        45 hours ago        261.8 MB
centos              latest              0f73ae75014f        5 weeks ago         172.3 MB
1
2
3
4
5
1
2
3
4
5
八、根据新生成的镜像生成容器 

分别映射容器的22端口和80端口到宿主机的2223端口和8000端口
docker run -d -p 2223:22 -p 8000:80 nginx:centos /usr/local/sbin/run.sh
1
1
查看生成的容器：
[root@localhost ~]#docker ps -a
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS

NAMES
f5a87e085a0b        nginx:centos        "/usr/local/sbin/run   6 seconds ago       Up 5 seconds        0.0.0.0:2223->22/tcp, 0.0.0.0:8000->80/tcp

stoic_kirch
ed9361b598c8        sshd-centos         "/usr/sbin/sshd -D"    37 minutes ago      Up 37 minutes       0.0.0.0:2222->22/tcp

distracted_mclean
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
测试Nginx服务：
[root@localhost ~]# curl localhost:8000
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
测试ssh服务
[root@localhost ~]# ssh localhost -p 2223
The authenticity of host '[localhost]:2223 ([::1]:2223)' can't be established.
RSA key fingerprint is d7:fd:3d:40:46:b6:0c:c9:ee:f1:fb:9e:08:c4:12:57.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[localhost]:2223' (RSA) to the list of known hosts.
root@localhost's password:
1
2
3
4
5
6
1
2
3
4
5
6
测试通过！
第二部分，通过Dockerfile生成镜像 

在宿主机上准备的文件清单：
Dockerfile
#启动ssh和apache服务的角本
run.sh
1
2
3
1
2
3
以上文件都放到/root/nginx_centos目录下
mkdir -p /root/nginx_centos
cd /root/nginx_centos
1
2
1
2
一、准备run.sh文件 

在/root/nginx_centos目录新建run.sh
vim run.sh
1
1
角本内容如下：
#!/bin/bash
/usr/sbin/sshd &
/usr/local/nginx/sbin/nginx
1
2
3
1
2
3
二、准备Dockerfile 

在/root/nginx_centos目录新建Dockerfile
vim Dockerfile
1
1
文件内容如下：
#新生成的镜像是基于sshd:dockerfile镜像
FROM sshd-centos
MAINTAINER by cmzsteven
WORKDIR /usr/local/src
#安装wget
RUN yum install -y  wget
#下载并解压源码包
RUN wget http://nginx.org/download/nginx-1.8.0.tar.gz RUN tar -zxvf nginx-1.8.0.tar.gz
WORKDIR nginx-1.8.0
#编译安装nginx
RUN yum install -y gcc make pcre-devel zlib-devel
RUN ./configure   --prefix=/usr/local/nginx   --with-pcre
RUN make
RUN make install
#启动Nginx服务
RUN/usr/local/nginx/sbin/nginx
#修改Nginx配置文件,以非daemon方式启动
RUN echo "daemon off;">>/usr/local/nginx/conf/nginx.conf
#复制服务启动脚本并设置权限
ADD run.sh /usr/local/sbin/run.sh
RUN chmod 755 /usr/local/sbin/run.sh
#设置生成容器时需要执行的脚本
CMD ["/usr/local/sbin/run.sh"]
#开放22、80、443端口
EXPOSE 22
EXPOSE 80
EXPOSE 443
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
需要注意的是：在Dockerfile文件中更换当前目录不可以用“cd”命令，而要改用“WORKDIR”. 

三、根据Dockerfile生成镜像
docker build -t nginx_dockerfile:centos .
1
1
查看镜像：
[root@localhost nginx_centos]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
nginx_dockerfile    centos              9ad55461b2fe        5 minutes ago       386.1 MB
nginx               centos              b738cec02b29        47 minutes ago      369.9 MB
sshd-centos         latest              64136bdc0cc8        46 hours ago        261.8 MB
centos              latest              0f73ae75014f        5 weeks ago         172.3 MB
1
2
3
4
5
6
1
2
3
4
5
6
四、根据镜像生成的容器并进行测试 

1、生成新的容器
[root@localhost nginx_centos]#docker run -d -p 2224:22 -p 8001:80 -p 4443:443 nginx_dockerfile:centos /usr/local/sbin/run.sh
1
1
将容器的22端口、80端口和443端口分别映射到到宿主机上的2224端口、8001端口和4443端口,并运行服务脚本。 

也可以使用-P参数来让系统随机指定端口映射到22、80和443端口：
docker run -d -P nginx_dockerfile:centos
1
1
因为在Dockerfile中指定了EXPOSE所以系统会自动将指定的端口映射出来；同时使用CMD来指定生成容器时所需要执行的角本，所以这里省略了“/usr/local/sbin/run.sh”。 

2、查看新生成的容器：
[root@localhost nginx_centos]# docker ps -a
CONTAINER ID        IMAGE                     COMMAND                CREATED             STATUS              PORTS

NAMES
c69d42541f52        nginx_dockerfile:centos   "/usr/local/sbin/run   26 seconds ago      Up 25 seconds       0.0.0.0:2224->22/tcp, 0.0.0.0:8001->80/tcp, 0.0.0.0:4443->443/tcp

high_colden
f5a87e085a0b        nginx:centos              "/usr/local/sbin/run   49 minutes ago      Up 49 minutes       0.0.0.0:2223->22/tcp, 0.0.0.0:8000->80/tcp

stoic_kirch
ed9361b598c8        sshd-centos               "/usr/sbin/sshd -D"    About an hour ago   Up About an hour    0.0.0.0:2222->22/tcp

distracted_mclean
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3、测试 

测试nignx:
[root@localhost nginx_centos]# curl localhost:8001
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
测试成功！
测试ssh
[root@localhost nginx_centos]# ssh localhost -p 2224
The authenticity of host '[localhost]:2224 ([::1]:2224)' can't be established.
RSA key fingerprint is d7:fd:3d:40:46:b6:0c:c9:ee:f1:fb:9e:08:c4:12:57.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[localhost]:2224' (RSA) to the list of known hosts.
root@localhost's password:
1
2
3
4
5
6
7
1
2
3
4
5
6
7
测试成功！
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 点击这里给我发消息
标签： 
相关文章推荐
新的分享
章节导航