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When you are learning certain tools, it is important that you should know why you are learning or what's

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the benefit of learning that tool.

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So I have compiled a list of all the benefits that Ansible has to offer.

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And the very first one is it is agent lists what it means that Ansible can be installed on one server.

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And let's say if you have to manage 100 other servers, you don't need to install the Ansible or its

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agent to those other hundred servers.

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All you need is an SSH access to that server and then let Ansible do the rest.

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Then Ansible is open source.

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It could.

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It has its features that can be changed or added as you move on.

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Or you could also not only rely on the company to add its feature, you could request a feature and

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have them updated by the community, then avoid human errors.

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If you have to make a changes to one, two or three servers, most likely you're not going to make a

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mistake.

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But if you repeating the same procedure on ten or 15 or 20 different servers, then most likely you

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will make a mistake.

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And especially when we are talking about a larger environment where you have to manage or log into thousands

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of different servers and do the same configuration change, then I'm very sure that you will make a

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mistake because I know I have made a mistakes in the past.

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So when you are making a change on only on one place and unanswerable server and you double checking

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it and you're pushing it out to the servers, beautiful, you don't have to make a mistake.

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There won't be a chance of human errors.

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So of course when you are automating tasks, what is it doing for you?

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It is saving you time and once your time is saved, what happens?

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It increases your productivity.

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You could focus on other projects in your organization and let Ansible do these repetitive, boring,

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tedious tasks for you.

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Easy to use.

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Yes, it's a lot easier when I learn Ansible.

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I had to learn from scratch, I tell you that.

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But it's so easy to learn, especially for those who know Linux.

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You don't have to be really good in Linux, but if you have a basic understanding of Linux, it's a

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lot easier to use its simple, human readable text file.

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What it means is the playbooks that we you going to write to automate task those those playbooks are

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so simple human readable text file you would know by looking at it that's a lot easier.

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It's not really like a code or C++ code where you look at it and you're like, Oops, what is that?

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No, it's very easy to read and understand.

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It's flexible.

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Moving on is secure.

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Yes.

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If it's age and list and you are doing everything over such as, you know, SSH stands for Secure Shell.

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So if you are connecting to all your remote hosts over Sage, it's automatically secure.

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All right.

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Moving down the line are moving down the list.

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It provides pre-written modules so you don't have to have your own or create your own module to do a

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certain task.

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Let's say if you have to do a jump install, you have a module for it.

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Let's say if you wanted to start a service, you have a module for it.

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Most of the tasks that we do in the Linux environment or even Windows environment, we have a pre-written

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modules for them.

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It's very easy to learn, of course.

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Now remember, as long as you have a good instructor, I will make sure that you learn everything about

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Ansible in this entire course.

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All right.

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Great product for orchestration.

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Yes.

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If you have an environment where you have to schedule tasks or put them in order, it's a great product

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for that.

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Ansible can be used not only for systems but also for network storage and cloud.

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All those gears that you have that you if you wanted to configure them, you could use Ansible for it.

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It provides approximately 1300 miles out of the box and about 4000 module on galaxy.

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As you're going to go through the modules right now, you probably don't know what module is, but module

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just give you a quick update.

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Module is something that provides you to automate a certain task.

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We'll cover that later.

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Right out of the box has had 13 of those sorry 1300 of those are huge online ANSIBLE resources.

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That's for documentation, that's for module, that's for systems information.

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You could go to Ansible Docs, dot, ansible, galaxy, dot, ansible, GitHub and many, many other

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online resources where you find great, great documentations and resources on Ansible.

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And the last, but not the least, it's a big plus for job seekers who are looking for jobs and for

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those.

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You are already in it and they wanted to level up their career.

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If you wanted to be in a DevOps, which is the development operations and if you wanted to enhance your

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skills.

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Ansible is the tool for you.

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If you know Linux, if you are in the system administration Ansible is the answer for you.

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Because I know the system administrator does a lot of automation.

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You write probably write shell scripts to automate your things or you write shell scripting, sorry,

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PowerShell in Windows with Ansible.

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You don't have to do that in every server.

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Here is the answer to your prayers where you do or manage or automate all your IT tasks.

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In this video, we will cover the terminologies used in Ansible.

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The very first one is the control node or Ansible server, the server which runs Ansible application.

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This is the main Linux server where Ansible engine or Ansible application or tool is installed and that's

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where you could create or manage all your playbooks and you could send it or communicate from this server

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to all the remaining or remote clients.

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This server is called control node.

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Then Modules Module is a command meant to be executed on the client side.

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Most of the IT task modules are already created and can be found on Ansible website.

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There are almost 1300 modules out of the box that are available and about 4000 plus modules on Ansible

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Galaxy websites.

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You could go to Docs and Apple.com and search for modules of your choice.

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If you want to automate a certain task, you can also go to Galaxy and Apple.com.

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Now let's look at the example of modules.

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Of course we will cover modules in great detail later on, install HTTP for example.

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If that's something you want to do when you want to install HTTP, what do you what command you do?

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You use either Yum or in newer versions of Linux, you could use DNF.

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So you do have a module for that.

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You don't have to actually use the Yum command or DNF command itself.

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You rely on the module same way you enable the service.

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There is a service module for it and you can start that service.

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There's a module, a service module for that as well.

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These are pretty much two modules that you see.

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One is to install HTTP and second module that is used is to enable and start the service.

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And we combine all of these three, they become a task.

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That task is within a YAML file.

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Now let's talk about a task.

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A task is a section that consists of a single procedure to be completed.

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A task can have multiple modules.

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And as we have seen in the above example, there are installing a HTTP package.

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Once it's installed, we enable it so it could start at boot time and then we wanted to start that service.

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All of that together is comprised of a task.

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Then you could have more or additional tasks doing different modules.

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All right, moving on then we have a playbook.

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Automation file with step by step execution of multiple tasks.

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So when you.

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Combine all those tasks and each task would have multiple modules that is written in a certain file.

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That certain file is called a playbook.

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YAML YAML stands for a playbook written in YAML language, and YAML itself stands for yet another markup

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language.

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So the format that is written within Playbook, that format is called YAML, and once that format has

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all the module and task, it is defined.

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The final item or the final product is called Playbook Inventory.

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Now you have a node, a control node or ANSIBLE server.

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You have to go and reach out to the remote servers.

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Right.

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So those remote servers has to be listed somewhere that is listed in a file called host.

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And that host file is our inventory file file that has information about remote clients where tasks

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are executed.

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Moving on to tag, there is another terms that used called tag, a reference or alias to a specific

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task.

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So this way you don't have to repeat that module or that task again and again.

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You could reference it to a tag.

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Of course, we'll cover that later on.

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Variable variable are like containers that holds.

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Or defined value which can be used repetitively.

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Then a roll splitting of playbooks into smaller groups roles lets you automatically load related wars

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files, task handlers and other ansible artifacts based on unknown file structure.

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After you group your content in roles, you can easily reuse them and share them with other users.

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So if you have, for example, you want to install the Apache server, you want to start the service,

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you could put them into a smaller playbook, and then you could put that playbook into a role.

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So the main playbook doesn't have to be so cluttered.

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I would say with all those long lists of modules, you could call upon those smaller playbooks, and

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that's what these roles are for anyway.

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That's the list of terminologies that I wanted to cover.

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There are few that I probably not have covered, but anyway, these are the most important ones that

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you should know as you're going to learn.

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Ansible.