Ansible script to install cplex on a linux server

#ANSIBLE SCRIPT TO INSTALL CPLEX ON A LINUX SERVER HOW TO#

name: ensure apache is at the latest versionР”В¬opy: src=/static_files/index.html dest=/var/www/html/ mode=0644 # mkdir /etc/ansible/playbooksР”Р„nd a file named apache.yml inside of there with the following contents:. handlers are actions that are triggered at the end of the tasks section in each play, and are mostly used to restart services or trigger reboots in the remote systems. Service: name=name_of_service state=service_statusР”Тђ. Task2: parameter1=value_for_parameter1 parameter2=value_for_parameter2 Task1: parameter1=value_for_parameter1 parameter2=value_for_parameter2 In that case, start a new play by adding the hosts directive at the bottom and starting over:. If you need to execute a different set of associated tasks for a specific host, create another play in the current Playbook (in other words, the purpose of a play is to map a specific selection of hosts to well-defined tasks). Within a play, all hosts are going to get the same task directives. tasks are executed in order, one at a time, against all machines that match hosts. vars: variables used to modify the behavior of the remote system(s).Р”В¤. remote_user: remote account that will be used to perform the tasks.Р”Р€. hosts: this is a list of machines (as per /etc/ansible/hosts) where the following tasks will be performed.Р”Сћ. Inside each Playbook you will find one or more group of hosts (each one of these groups is also called a play) where the desired tasks are to be performed.Р”Р„n example from the official docs will help us to illustrate:Р”РЋ.

Simply put, Playbooks are plain text files written in the YAML format, and contain a list with items with one or more key/value pairs (also known as a РІР‚Сљ hashРІР‚Сњ or a РІР‚Сљ dictionaryРІР‚Сњ). It doesnРІР‚в„ўt take long for one to realize that this method of running tasks on remote computers works fine for short commands but can quickly become burdensome or messy for more complex tasks that require further well-structured configuration parameters or interactions with other servicesР”Р‡or example, setting up and configuring WordPress on multiple hosts РІР‚вЂњ which we will cover in the next article of this series).

In the example above, we ran hostnamectl -static on node1 and node2. Introducing Ansible PlaybooksР”Р„s described in the previous guide, you can use the ansible utility to run commands in remote nodes as follows: # ansible -a '/bin/hostnamectl -static' webservers That said, letРІР‚в„ўs get started with the topic at hand. In addition, please note that both nodes have been added in the webservers section of the local /etc/ansible/hosts file: Ansible Host File All hosts are CentOS 7 boxes: Controller machine (where Ansible is installed): 192.168.0.19 Throughout this article, as well as the next one, we will use the following test environment.

#ANSIBLE SCRIPT TO INSTALL CPLEX ON A LINUX SERVER HOW TO#

Use Ansible Playbooks to Automate Complex Tasks on Linux РІР‚вЂњ Part 2Р”Р„fter installing the software in the controller machine, creating the keys for passwordless login and copying them to the nodes, itРІР‚в„ўs time to learn how to optimize the process of managing such remote systems using Ansible. In the previous article of this Ansible series, we explained that Ansible is an agent-less tool that allows you to quickly and efficiently manage multiple machines (also known as nodes РІР‚вЂњ and perform deployments to them as well) from a single system.

Ansible script to install cplex on a linux server