1- pull the container:
sudo docker pull nginx
2- Start the container ( listening on port )
sudo docker run -d --name mynginx3 -p 8080:80 nginx
3- information about
sudo docker info mynginx
4- listening port: 8080 >>> send to the container on port 80
jlk@ubuntu:~$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
818616837c2b nginx "nginx -g 'daemon off" 33 minutes ago Up 33 minutes 0.0.0.0:8080->80/tcp mynginx3
f69ae6288204 nginx "nginx -g 'daemon off" About an hour ago Up About an hour 80/tcp mynginx
5- execute a command into the container: list the file in the
root@ubuntu:/srv# docker exec mynginx ls /usr/share/nginx/html/
50x.html
index.html
root@ubuntu:/srv# docker exec mynginx cat /usr/share/nginx/html/index.html
<!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>
6- mapping the /usr/share/nginx/html/ directory in the container to the /srv/www directory in the host
sudo docker run --name our-nginx -v /srv/www:/usr/share/nginx/html:ro -d nginx