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Create our Docker Container

Create a nginx reverse proxy by issuing the following command:

> docker run -d --net host --restart=always -p 80:80 --name proxy -v {CERTS_DIR}:/etc/nginx/certificates -v {SITES_CONFIG_DIR}:/etc/nginx/sites-enabled lerenn/nginx-reverse-proxy


This will create a reverse proxy running on the host network. We specify a SITES_CONFIG_DIR where we will add our site config files (see below).

We also specify a folder for our certificates that we will reference for our SSL enabled sites.

Define our Nginx Configuration Files

In the config folder we defined in our docker command we will add a configuration like the following:

mysite.conf
server {
        listen       80;
        server_name  wiki wiki.jmehan.com;
        location / {
            proxy_pass         http://192.168.1.60:8090/;
            proxy_redirect     off;

            proxy_set_header   Host             $host;
            proxy_set_header   X-Real-IP        $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

            client_max_body_size       10m;
            client_body_buffer_size    128k;

            proxy_connect_timeout      90;
            proxy_send_timeout         90;
            proxy_read_timeout         90;

            proxy_buffer_size          4k;
            proxy_buffers              4 32k;
            proxy_busy_buffers_size    64k;
            proxy_temp_file_write_size 64k;
        }
}

Adding SSL Support


If we want to terminate an SSL connection at our proxy, we can generate an SSL cert and configure it in nginx.


Generate the SSL certificate using the following command:

> openssl req -nodes -new -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 7300


This command will generate a self signed SSL certificate valid for 10 years.


Configure the endpoint to use the certificates. Here we are defining the docker location for the certs. 

mysite.conf
server {
        listen       8443 ssl;
        #server_name  svn svn.jmehan.com;
        ssl_certificate     /etc/nginx/certificates/svn/cert.pem;
        ssl_certificate_key /etc/nginx/certificates/svn/key.pem;

        location / {
            proxy_pass         http://192.168.1.60:9080/;
            proxy_set_header   Host             $host;
            proxy_set_header   X-Real-IP        $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;

            client_max_body_size       10m;
            client_body_buffer_size    128k;
            proxy_connect_timeout      90;
            proxy_send_timeout         90;
            proxy_read_timeout         90;

            proxy_buffer_size          4k;
            proxy_buffers              4 32k;
            proxy_busy_buffers_size    64k;
            proxy_temp_file_write_size 64k;
        }
}

Adding Basic Authentication

You may need to add apache2-utils to your nginx docker container using the following cmd:

> sudo apt-get install apache2-utils


Login to the docker container and create the password file

> docker exec -it <nginx_container> bash


Create a password file

> htpasswd -c /etc/nginx/conf.d/htpasswd <username>


Update the configuration

server {
        server_name  kibana kibana.jmehan.com;
        location / {
            proxy_pass         http://192.168.1.60:5601/;
            auth_basic "Administrator's Area";
            auth_basic_user_file /etc/nginx/conf.d/htpasswd;
        }
}


References

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