CentOS7 Docker Nginx deployment and running example analysis

1. Resource preparation

dockerfile

# "ported" by adam miller <maxamillion@fedoraproject.org> from 
#  https://github.com/fedora-cloud/fedora-dockerfiles 
# 
# originally written for fedora-dockerfiles by 
#  scollier <scollier@redhat.com> 
 
from centos:centos7 
maintainer the centos project <cloud-ops@centos.org> 
 
run yum -y update; yum clean all 
run yum -y install epel-release tar ; yum clean all 
run yum -y install nginx ; yum clean all 
add nginx.conf /opt/deploy/nginx/nginx.conf 
run echo "daemon off;" >> /opt/deploy/nginx/nginx.conf 
#run curl https://git.centos.org/sources/httpd/c7/acf5cccf4afaecf3afeb18c50ae59fd5c6504910 \ 
#  | tar -xz -c /usr/local/nginx/html \ 
#  --strip-components=1 
#run sed -i -e &#39;s/apache/nginx/g&#39; -e &#39;/apache_pb.gif/d&#39; \  
#  /usr/local/nginx/html/index.html 
 
expose 80 
 
#cmd [ "/usr/local/nginx/sbin" ]

Note: The path needs to exist on the system and correspond to the

nginx.conf file

# for more information on configuration, see: 
#  * official english documentation: http://nginx.org/en/docs/ 
#  * official russian documentation: http://nginx.org/ru/docs/ 
 
user nginx; 
worker_processes 1; 
 
error_log /usr/logs/nginx/error.log; 
#error_log /var/log/nginx/error.log notice; 
#error_log /var/log/nginx/error.log info; 
 
pid    /run/nginx.pid; 
 
 
events { 
  worker_connections 1024; 
} 
 
 
http { 
  include    mime.types; 
  default_type application/octet-stream; 
 
  log_format main '$remote_addr - $remote_user [$time_local] "$request" ' 
           '$status $body_bytes_sent "$http_referer" ' 
           '"$http_user_agent" "$http_x_forwarded_for"'; 
 
  access_log /usr/logs/nginx/access.log main; 
 
  sendfile    on; 
  #tcp_nopush   on; 
 
  #keepalive_timeout 0; 
  keepalive_timeout 65; 
 
  #gzip on; 
 
  # load modular configuration files from the /etc/nginx/conf.d directory. 
  # see http://nginx.org/en/docs/ngx_core_module.html#include 
  # for more information. 
  #include /etc/nginx/conf.d/*.conf; 
 
  index  index.html index.htm; 
 
  server { 
    listen    80; 
    server_name localhost; 
    root     /usr/share/nginx/html; 
 
    #charset koi8-r; 
 
    #access_log /var/log/nginx/host.access.log main; 
 
    location / { 
      autoindex on; 
    } 
 
    # redirect server error pages to the static page /40x.html 
    # 
    error_page 404       /404.html; 
    location = /40x.html { 
    } 
 
    # redirect server error pages to the static page /50x.html 
    # 
    error_page  500 502 503 504 /50x.html; 
    location = /50x.html { 
    } 
 
    # proxy the php scripts to apache listening on 127.0.0.1:80 
    # 
    #location ~ \.php$ { 
    #  proxy_pass  http://127.0.0.1; 
    #} 
 
    # pass the php scripts to fastcgi server listening on 127.0.0.1:9000 
    # 
    #location ~ \.php$ { 
    #  root      html; 
    #  fastcgi_pass  127.0.0.1:9000; 
    #  fastcgi_index index.php; 
    #  fastcgi_param script_filename /scripts$fastcgi_script_name; 
    #  include    fastcgi_params; 
    #} 
 
    # deny access to .htaccess files, if apache's document root 
    # concurs with nginx's one 
    # 
    #location ~ /\.ht { 
    #  deny all; 
    #} 
  } 
 
 
  # another virtual host using mix of ip-, name-, and port-based configuration 
  # 
  #server { 
  #  listen    8000; 
  #  listen    somename:8080; 
  #  server_name somename alias another.alias; 
  #  root     html; 
 
  #  location / { 
  #  } 
  #} 
 
 
  # https server 
  # 
  #server { 
  #  listen    443; 
  #  server_name localhost; 
  #  root     html; 
 
  #  ssl         on; 
  #  ssl_certificate   cert.pem; 
  #  ssl_certificate_key cert.key; 
 
  #  ssl_session_timeout 5m; 
 
  #  ssl_protocols sslv2 sslv3 tlsv1; 
  #  ssl_ciphers high:!anull:!md5; 
  #  ssl_prefer_server_ciphers  on; 
 
  #  location / { 
  #  } 
  #} 
 
}

Note: The path needs to exist on the system and correspond to it

2. Execute the build image command

Copy the code The code is as follows:

[root@localhost nginx]# sudo docker build --rm --tag os7/nginx:centos7 .

Screenshot of execution results:

3. Check whether the image is installed and built successfully docker images

#4. Create a container docker run -i -t -d -p 192.168.32.129:81:80 os7/nginx / bin/bash

Note: If the IP address is 192.168.32.129, you need to add

192.168.32.129 localhost

# in /etc/hosts ##5. Check whether the container is created successfully and start docker ps

6. Test whether curl http://192.168.32.129:81

is successfully accessed.

This connection refused appears, what should I do? There is a way to solve it. Let’s first enter the container.

7. Enter the container docker exec -i -t small_hodgkin /bin/sh

8. Then Execute inside the container (just enter it directly)

nginx

9. Execute curl http://192.168.32.129:81

## outside the container

#Successful.

10. Go outside the virtual machine and access it through the browser

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