Add Nginx to Your Docker SSH Image and Access It from Outside

Idea

(1) Log into the container via SSH and install Nginx.

(2) Create a new Nginx image.

(3) Start a container from the new image and test Nginx.

Steps

1. Install Nginx

Run a container with the SSH port exposed: docker run -d -p 22 dys/centos:ssh Find the host port mapped to the container's 22 (e.g., 1035) and SSH into the container: ssh [email protected] -p 1035 Inside the container (CentOS), install Nginx:

yum install gcc-c++

yum -y install zlib zlib-devel openssl openssl-devel pcre pcre-devel

yum install wget

wget http://nginx.org/download/nginx-1.8.0.tar.gz

tar -zxvf nginx-1.8.0.tar.gz

cd nginx-1.8.0

./configure --prefix=/usr/local/nginx --with-http_stub_status_module

make && make install

Start Nginx: /usr/local/nginx/sbin/nginx Test locally: curl http://127.0.0.1 You should see the Nginx welcome page.

2. Create a New Nginx Image

Stop the running container and note its ID (e.g., 9708d2e3f613): docker stop 9708d2e3f613 Commit the container as a new image named centos_nginx:

docker commit 9708d2e3f613 centos_nginx

3. Run the New Image

Start a container from the new image, exposing both SSH (22) and HTTP (80) ports: docker run -d -p 22 -p 80 centos_nginx Check the port mapping (e.g., host 1041 → 22, host 1042 → 80): docker ps SSH into the container again if needed and start Nginx: /usr/local/nginx/sbin/nginx Now access Nginx from the host using the mapped port: http://<host_ip_or_domain>:1042 The Nginx welcome page should be displayed.