diff --git a/lamp_haproxy/README.md b/lamp_haproxy/README.md index 0bdf21f..f926272 100644 --- a/lamp_haproxy/README.md +++ b/lamp_haproxy/README.md @@ -7,6 +7,7 @@ without affecting the service. ***Setup Entire Site. Firstly we setup the entire stack, configure the 'hosts' inventory file to include the names of your hosts on which the stack would be deployed. + [webservers] web3 web2 @@ -14,23 +15,28 @@ Firstly we setup the entire stack, configure the 'hosts' inventory file to inclu web3 [lbservers] web2 -After which we execute the following command to deploy the site. + +After which we execute the following command to deploy the whole site. + ansible-playbook -i hosts site.yml The deployment can be verified by accessing the webpage." lynx http://:8888. multiple access should land you up in diffrent webservers. ***Remove a node from the cluster. Removal of a node from the cluster would be as simple as executing the following command: + ansible-playbook -i hosts roles/remove_webservers.yml --limit=web2 ***Adding a node to the cluster. -Adding a node to the cluster can be done by executing the following command +Adding a node to the cluster can be done by executing the following command: + ansible-playbook -i hosts roles/add_webservers.yml --limit=web2 ***Rolling update of the entire site or a single hosts Rolling updates are the preffered way to do an update as this wont affect the end users, In this example the hosts are updated in serial fashion, which means that only one server would be updated at one time, this behaviour can be changed by setting the 'serial' keyword in webservers.yml file. Once the code has been updated in the repository which can be defined in the group_vars/all file, execute the following command: + ansible-playbook -i hosts roles/rolling_update.yml