Karunakar: Ansible on CentOS 7

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Video Title: How to install on centOs7.

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Youtube upload title: Ansible playbook-How to install on centOs7-by-NCD0318H020

Tasks and solutions:

Task 1 : How to Install and Configure Ansible for IT Management in CentOS 7

Step1:

# Your VM is up-to-date and update epel

sudo yum update -y

Step2:

# Note : Make sure you are doing all operations under root only.

sudo rpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

Step3:

# Installing Ansible on your VM

sudo yum install ansible

# View ansible version

ansible --version

Step4:

# Adding the node, setting up key and adding permanent key

ssh-keygen

ssh-copy-id -i host ip addr

Step5:

# Adding host to ansible and creating playbook

sudo  /etc/ansible

# In that goto hosts edit the file.

sudo vi hosts

[remote-server]
ip-address of the host

# this will let you check whether the IP given is correct or not

ansible -m  ping  'remote-server'

# create a playbook with .yml format and add below command into it.

sudo vi name.yml

#in that

—
– hosts: remote-server
tasks:
– name: Install EPEL release for nginx
yum: name=epel-release state=present

– name: Install nginx web server
yum: name=nginx state=installed update_cache=true
notify:
– start nginx

– name: Upload the default index.html file
copy: src=html_files/index.html dest=/usr/share/nginx/www/ mode=0644

handlers:
– name: start nginx
service: name=nginx enabled=yes state=started

Step6:

#Creating a pre-requisite directory& file and running playbook for node.

# this file is to be created if ansible cannot create it while running a playbook.

sudo mkdir html_files

# because we are working on ngnix here so we create this file

sudo vi index.html

#running your playbook

ansible-playbook name.yml

# make sure the firewall is disabled on the host

systemctl disable firewalld

# Goto browser

#accessing the nginx host.

http://hostIp:port

#Nginx default port is 80.

Karunakar