Install WebMKS proxy and configure WebMKS

Introduction to WebMKS proxy

Remote access for vCenter 7 is through WebMKS only and Abiquo supports WebMKS.

The purpose of this proxy is to allow remote access to VMs in VCenter/ESXi architectures. This is done via Secure WebSocket protocol using the VMware VNC implementation over WSS (WebMKS). Basically, we request a ticket to the vCenter API, and with this ticket we can request VM remote access data to the ESXi host via WSS. The connection to the Abiquo Server is passed by the Apache proxy to an NGINX proxy on the Remote Services.

\uD83D\uDCD8 Install WebMKS proxy

To install WebMKS do these steps.

1. Log in to the API Server as an administrator

2. Install and load mod_proxy_wstunnel

   1. Edit /etc/httpd/conf.modules.d/00-proxy.conf

   2. Go to the end and add LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so

3. Edit /etc/httpd/conf.d/abiquo.conf and add one Location for each Remote services server. For example, for two servers:

   <Location /wsdata>
       ProxyPass wss://rs1.cloud.example.com:7070 ttl=20 timeout=20
       ProxyPassReverse wss://rs1.cloud.example.com:7070
       Require all granted
   </Location>
   <Location /wsdata2>
       ProxyPass wss://rs2.cloud.example.com:7070 ttl=20 timeout=20
       ProxyPassReverse wss://rs2.cloud.example.com:7070
       Require all granted
   </Location>

4. Edit the /etc/httpd/conf.d/abiquo.conf file and at the end of the VirtualHost section, add the SSL Proxy Engine

   SSLProxyEngine On 

5. Check the DNS values in the /etc/resolv.conf

6. For each Abiquo datacenter, log in to each Remote Services server

7. Install the WebMKS proxy package

   yum install abiquo-webmks-proxy

   This will install NGINX and its configuration files, and also enable it in systemctl.

8. Edit the server configuration at /etc/nginx/nginx.conf

   1. For listen, if you are using another port, change the default of 7070

   2. Set the ssl_certificate and ssl_certificate_key with the location of the UI certificate files. NGINX must have access to these files.

   3. If you are using domain names for your ESXi servers, in the location configure the resolver to point to your DNS servers.

   4. If this is a distributed environment and the API server has another IP, set server_name to _
      

      worker_processes  1;
       
      events {
          worker_connections  1024;
      }
       
      
      http {
          include       mime.types;
          default_type  application/octet-stream;
       
          sendfile        on;
       
          keepalive_timeout  100;
       
          server {
              listen       7070 ssl;
              server_name  localhost;
              ssl_certificate      /etc/pki/abiquo/cloud.example.com.crt;
              ssl_certificate_key  /etc/pki/abiquo/cloud.example.com.key;
       
              ssl_session_cache    shared:SSL:1m;
              ssl_session_timeout  5m;
       
              ssl_ciphers  HIGH:!aNULL:!MD5;
              ssl_prefer_server_ciphers  on;
       
              location / {
                  proxy_pass https://$arg_ip:443;
                  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                  proxy_http_version 1.1;
                  proxy_set_header Upgrade $http_upgrade;
                  proxy_set_header Connection "Upgrade";
      			resolver 10.95.11.5 10.95.11.6;
              }
          }
      }

9. Add these firewall rules on the Remote Services servers, if the API server has a different IP address from the Remote Services servers (not a monolithic environment),

   firewall-cmd --permanent --zone=public --add-port=7070/tcp
   firewall-cmd --permanent --zone=public --add-port=7070/udp
   firewall-cmd --permanent --zone=public --add-port=4822/tcp
   service firewalld reload

10. On the Remote Services servers, edit abiquo.properties

    1. Define the WebMKS proxy path, for example:

       com.abiquo.esxi.webmks.proxypath = api.cloud.example.com/wsdata

       The value is the FQDN and Location of the proxy in Apache on the API Server (without the protocol)

11. For Abiquo versions prior to Abiquo 6.1.2, enable WebMKS for all VMs with no VNC configuration

    com.abiquo.esxi.webmks = true

    For a Monolithic environment also set the force property

    com.abiquo.esxi.webmks.force

    To activate the changes to properties, restart the Tomcat server.

12. Restart the services

    1. On the Remote Services server, restart NGINX

    2. On the API Server, restart the Apache HTTPD service