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So friends, let's walk through the validation challenge.

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The very first thing I'm going to have to do is to create custom facts on one

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of my devices.

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This file should be called validation with the correct extension.

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So what I will say is sudo mkdir -p to create a nested directory and I will say

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etse

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Ansible, fats.d and if I hit enter, now if I see the enter this particular

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directory,

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what I'm going to have to do is to create a file called validation with the

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correct extension.

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Now the extension is going to end in dot fact.
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Now the extension is going to end in dot fact.

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So what I will do here is this sudo vim validation dot fact and I'm going to

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have to have a heading

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inside of this particular file known as nuggets.

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Okay. And then I'm going to have to create a key called Linux with a

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corresponding value of red hat.

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So let's just write and quit.

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Perfect. So now we should have to find that custom fact on this particular

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device.

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The next thing we're going to have to do is to use Ansible to retrieve this

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custom fact from the device.

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So let me just create a playbook called validation one dot yml.
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Let's just call this validation.

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Now I can target the all group of ISO wish but in this case here, I'm just

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going to target the yellow box

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because that is a device whereby I have my custom fact.

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Now specify my tasks. I'll get the task in name and I'll just say print custom

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facts.

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So I'll use a debug module and let's just use the var parameter.

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And this time here I'm going to print out Ansible local care.

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So if I just write and quit and I run my validation playbook, I enter, we

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gather the facts.

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And as we can see here, we can print out our custom facts that we have to find.
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And as we can see here, we can print out our custom facts that we have to find.

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Now the next thing we're going to have to do is to write a playbook that is

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going to run the pwd command

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against both managed devices and display the outputs.

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So what I will do is I will create a new playbook called validation to dot yml.

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Let's just call this validation to the host. I'm going to target will be the

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all.

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And in this case here, let me just say gather facts is equal to false.

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You don't actually have to do this, but it does make sense because it's going

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to speed things up now to find my tasks.

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The name is going to be run the pwd command and I want to use the ansible built
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The name is going to be run the pwd command and I want to use the ansible built

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in command module.

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And the command I'm going to run is going to be pwd and I actually want to

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capture this output utilizing the register keyword.

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And I'll just call this pwd outputs. Now I want to print the result of this

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output.

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So I'll create a new task. I'll just say print the outputs.

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And I'll use the debug module. And again, I can use the var parameter or if I

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so wish I can use the message parameter as well.

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And just use my double color braces. Let's do that for a little bit of

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variation.

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And I'm going to substitute in my pwd output. If I just write this and save,
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And I'm going to substitute in my pwd output. If I just write this and save,

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let's run validation to now and to enter.

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As we can see here, we are running the command and if you want to be a little

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bit more explicit, what you could do, let's just grab the sdd out information

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to try again.

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There we have the result of the pwd command. We are in the home directory for

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Ansible.

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Now let's write one more playbook. It's called validation three. We'll target

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the host all.

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Let's set gather facts to false once again. And now we'll define our tasks.

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So what we're going to have to do is to create a directory. We'll use the ans

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ible built in file module.
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The path is going to be forward slash temp forward slash validation. And the

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state is going to be directory.

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Now remember, what we want to do is we want to print a message saying that the

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validation directory has been created.

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But we only want to do it when the directory has been created.

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Pretty much we only want to do it when there happens to be a change, i.e. when

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this gets created.

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If we just run it again and already exists, the command or rather the message

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should not be printed.

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Therefore, we want to use the notify directive. That way we can call a
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Therefore, we want to use the notify directive. That way we can call a

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particular handler.

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Let's just say their message. And now at the same level of indentation as tasks

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, I'm going to define my handlers.

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And I'll just say the name is their message. And I'm going to use the debug

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module.

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And the message is going to be validation directory has been created.

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Okay, so let's save this. And let's run the playbook and enter.

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Now we create the directory as we can see here. This has been changed.

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And because we had a change, we have indeed printed out the message validation
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And because we had a change, we have indeed printed out the message validation

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directory has been created.

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Now because they already exist now, if I rerun the playbook, notice we no

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longer print out that message.

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So that is us for our validation challenge. I hope this has been informative

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for you.

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And I'd like to thank you for viewing.