To Configure Reverse Proxy i.e. Haproxy and update it’s configuration file automatically on each time new Managed node join the inventory .
We first need to update the configuration file ,ie haproxy.cfg with Jinja .
Here I used ‘for loop’ in Jinja language for printing Groups (webserver) Value(Ip’s present in that group)
I created the architecture in the type like in future it would automatically update it’s configuration file on each time new Managed node join the inventory.
Before copying the haproxy.cfg file to the managed node
haproxy.cfg file in controller node
After copying the haproxy.cfg file to the managed node
haproxy.cfg file in managed node
Inventory File
Inventory file
After Working on the configuration file in the side of controller node ,I created a playbook which would automatically launch a webserver with a Load Balancer or Reverse proxy configured and also start the services .
In haproxy.yml playbook
haproxy.yml playbook
First Creating a play for webserver groups
Play for webserver
STEP 1
Creating a host ,ie webserver groups.
Host
STEP 2
Installing Httpd package with the help of package module .
Installing httpd package
STEP 3
Creating a simple html file in document root of managed node using the module copy.
Copying the webpage
STEP 4
Starting the Httpd Web Services using the module service.
Starting httpd services
STEP 5
Creating a Firewall rule for port no 80 with the protocol tcp using the module firewall.
Creating a Firewall Rule
Secondly creating a play for haproxy groups.
Play for haproxy
STEP 1
Creating a host ,ie haproxy groups.
Host
STEP 2
Installing haproxy package with the help of package module .
Installing haproxy
STEP 3
Copying the configuration file that we updated onto the controller node using the module template .
Copying the file
STEP 4
Starting the Haproxy service using the module service.
Starting haproxy service
STEP 5
Creating a Firewall rule for port no 8080 with the protocol tcp using the module firewall.
Creating a Firewall Rule
Now running haproxy.yml playbook
ansible-playbook haproxy.yml
