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Hey, folks, welcome back.

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In this video, we will be installing and starting up a package in a Linux machine.

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So the very first thing is we'll pick a name for the YAML file, which we are creating for our playbook.

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Then defining the dash, dash, dash, which tells us that this is going to be a YAML file.

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Now the name of the playbook installing and running Apache or installing and running HTTP de.

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That's the name of the package of the Apache.

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All right, the host, where do you want to install and run this Apache package?

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You want to run it on a local host.

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All right.

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The tasks the third thing, what exactly we're doing, the name is that at this time, we will install

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Apache or HTTP.

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All right.

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Tell me the module that you will use to do that installation.

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We'll use the Yum module.

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All right.

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Or you could use DNF.

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All right.

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The name of the package will be a HTTP feed.

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Now, this is the exact name that you will use as if you are running yum install followed by the package

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name or DNF install followed by HTTP.

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This has to match with that package.

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All right.

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So once we have it, what do you want it to do with this?

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So we know you want to the name is a general information you want to install package and we will be

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using Yum command.

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But we could also do remove using Yum command and we could also do a lot a lot of other functions with

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Yum.

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So what exactly wanted to do with this package?

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We wanted to use the state as present, which tells the Ansible executables that we wanted it to be

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installed.

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So the package name is HTTP PD.

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And when you put in the state and and you define the state as present, it means that we want the package

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to be installed.

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Beautiful.

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Now the next thing is package is installed.

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Now we want to start the package, the service of the package to be started.

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For that, we have to give it a new name for that task and that is start http dx.

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Now if you notice, that name is exactly under the same vertical column of the name of the first name

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where we have the install package.

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All right.

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Then the module that we will be using to start the service is the service module and the name for what

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package.

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For that service we want to install is start.

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That is http.

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All right.

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Now, the state the state here is different than installing it and that is started.

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These are the few things that you have to remember if you do not remember these options and you could

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go back to the documentation and go to the module for Yum!

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Or go to the module for service.

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And then you could see what are the options that are available to you and whether you should use the

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state started or stop or present where you should use it and where you should not.

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All right.

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That's about it.

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This entire playbook is going to be installing the HTTP package and starting up its service.

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Now, once this playbook is completed and saved, then we'll go ahead and run the pack, install the

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YAML file.

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All right, so let's go to our Linux machine right here and let's log in as root.

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All right.

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So we are in our home directory, which is at Ansible Playbooks, which is the directory we are using

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to keep all of our playbooks.

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Who am I?

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I am logged in as root.

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All right, perfect.

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Now let's go ahead and create the YAML file and we are naming it pack install or ensure package install

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yaml.

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Hit enter.

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Now define dash.

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Dash.

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Dash.

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Dash name.

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Installing and running.

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Apache or http.

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DD That's fine.

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Now, where do you want it to run?

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We want it to run it on local hosts.

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All right.

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The tasks, what you want it to do, you want it to, first of all, give it a name of the task.

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By the way, if you don't give a name for a task that is still fine, the Ansible would still run.

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But it is a good practice that you define the name for every module that you will be using to execute

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the task.

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All right, the name will be installed Apache, and the module we will be using is the GM module.

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Great.

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Now, if you notice, as soon as you hit, enter the the shell knows that you are using YAML and it

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knows what are the indentation requirement for YAML file.

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So you don't have to use the spaces and count the spaces.

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All right.

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Anyway, coming back.

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The name of the package that you wanted installed, that is HTTP.

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Exactly the same name.

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Now, the state.

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Once you have that package, once the package is identified, what do you want it to do?

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You want it to install it.

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And for install you will use the the wording for the install is present that will tell the system that

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you want it installed.

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All right.

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So that's one task.

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The second one is I wanted to start this service, so go back to the same where our name is starting.

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So we'll put a second name for our task, which is start http dx.

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All right.

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So service, that's the module we need to use and the name for that is http dx and the state will be

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started.

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All right.

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So this is going to be once again installing it and starting this service.

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One thing you notice, please pay close attention.

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The name of the task.

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When you define the very first name, you put in a hyphen and then you put in the name.

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This is the general information that will show up and you run it when you define the the module and

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then you define the module.

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For example, in this example, you have to define the package name, then you do not use the hyphen.

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In this case, same thing here.

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The service.

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What is the name of the service you want to start?

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The name is this.

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This is these names.

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Do not use the hyphen.

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Hyphen is only used when you want to write the text.

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All right, so that is there.

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Let's save.

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And now let's run our Ansible playbook.

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And by the way, before I do that, let's check if I have a HTTP package installed on my machine or

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not.

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So for that I'll do rpm minus key and grep http pd.

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And let's see if it has it.

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Nope.

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There is no package installed on my machine.

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So now let's run the playbook.

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Okay.

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All right.

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So right here saying installing and running a partial HTP.

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This is the name.

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As I said, it's just the text is nothing else.

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Running it against local host which is right here now it's going to task install Apache.

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This is the name again this is just a text that will show up right on your screen.

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All right.

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What module you wanted to use?

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You wanted to use jump module or it says task change to local host Yes, we wanted to have it on local.

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Host The second one is also local.

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Host okay, three change.

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Two So three meaning this is.

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Host one this is one of the tasks is considering to identify which.

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Host The second one is installed.

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Apache The third one is starting the service.

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All right.

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Now, by looking at this, we know that it has worked and the playbook ran successfully.

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Now to confirm that if we have the package installed, we'll run the same command rpm grep hpdi and

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you'll see right away.

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Beautiful.

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We have all these four packages that matches hpdi.

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Excellent.

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Now the next part that we wanted to do is to start that service as well.

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So in order to check if the service is started, you'll use the command system CTL status.

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At DPD.

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Excellent.

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You'll see right here it is active loaded.

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So it is running and it is started.

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So our playbook did all of that magically instead of us running a couple of commands, which is yum

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install hdd, dpd providing minus y every time it asks whether you want to install it or not.

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Then once it's installed then we will have to go in and do system CTL start http d that will start.

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So maybe it's easier for you to do it on one machine.

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But what if you have to do the same thing on ten or 20 different machines?

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Then it's going to be cumbersome, right?

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Yes.

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That's why Ansible comes to your rescue.

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Then you have to automate these tasks for multiple.

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Machines are remote clients.