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So friends, throughout this skill we have discussed two different programming

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concepts.

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The first one was loops and the second one was conditional statements.

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Now we don't have to understand one in isolation or implement one in isolation

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of the other.

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We can in fact use loops with conditional statements.

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So in this video, that is what we're going to do.

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So let me create a new file once again, let's call this loop condition.YML.

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Again, I'm super creative as you know, it's going to insert mode, have our free

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high

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buttons at the top and let's give this playbook a name.
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buttons at the top and let's give this playbook a name.

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Let's just say play to test loops with conditions.

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Perfect. So the host we are going to target is going to be the old group and

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all I will do

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is define my tasks. So let's have my task keyword followed by my array object

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and then

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we'll specify the name in this task. So the name here is going to be creating

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multiple files

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on UK devices. Now a game, we only have one device, but we can imagine the UK

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group is a

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lot larger than it actually is. Let's say we are not just managing two devices,

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but rather
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but rather

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500 devices in our network, makes it more fun that way after all.

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And the module we're going to use is going to be the Ansible built in shell

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module.

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So all I want to do here is to use the touch command.

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And what I want to do is I want to create a file called, let's maybe say UK one

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UK two

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and UK three if you happen to be in the UK group.

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So I don't want to have to type UK one dot txt here because that would hard

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code the value.

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That would mean we would have to continually retype more tasks defining the

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shell module

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so on so forth, definitely not efficient. So what I will do is I will say touch
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so on so forth, definitely not efficient. So what I will do is I will say touch

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and then I'll have

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my double color braces here. Now what am I going to actually have within the

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parentheses? Well,

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we're going to be looping through some particular details. So let's go out

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there with them.

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Use the loop keywords and we'll specify as an array all of the elements you

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want to loop through.

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So let's just say UK one dot txt. The next one is UK two dot txt and the third

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one can be UK three

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dot txt. So if you want to access each element within the loop, how do we do

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that? Well, we use

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the item keyboard as we saw before. Okay, let's create a new task then we'll
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the item keyboard as we saw before. Okay, let's create a new task then we'll

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create a name.

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I must specify the name as creates multiple files on USA devices. So it really

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similar to before,

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we'll use the Ansible built in shell module and what we're going to do similar

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to as we saw before,

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we're going to use the touch command to create brand new files. But once again,

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we're going to be using a variable and we're going to be leveraging the power

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of lips. So we'll

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use the keyboard item use a lip keyword again, specifying array this time,

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though, the values

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are going to be USA one dot txt, USA two dot txt. And let's maybe add another
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are going to be USA one dot txt, USA two dot txt. And let's maybe add another

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one just called

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America dot txt doesn't actually matter. Now, of course, what's going to happen

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is right now,

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this is going to run for all devices, we do not want that. We want to add a

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conditional with the

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loop element. So at the same level of indentation as the loop, what I'm going

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to do is I'm going to

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invoke the when keyword here. So I'll just say when and have my colon to make a

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key. And as we saw

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before, I'm going to have my double quotation marks. And inside of that, I will
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before, I'm going to have my double quotation marks. And inside of that, I will

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have my single

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quotation marks to specify what it is I'm targeting. I'm going to specify the

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UK group once again

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in lowercase. Let's not make that same mistake again. And then I will say in

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group underscore

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names calling that magic variable once again. And the same thing is going to be

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true with a slight

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modification for the next task, we'll use the when keyword, have a colon,

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double quotation marks,

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and our single quotation marks within this time will specify USA in the magic

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variable group

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underscore names. So with that now done, what I can do is press escape, writing
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underscore names. So with that now done, what I can do is press escape, writing

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quit to save the

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file. Let's hit enter. And if I just say answer will have in playbook loop

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condition dot yml

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and to enter answer, I'm like security. And we can see the outputs are let's

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scroll up a little bit.

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So as we can see here in the output for task one, create multiple files on the

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UK device,

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we can see here for the yellow box, which is a USA device. This particular task

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has been skipped.

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You see that however, when it comes to the blue box, it does actually specify
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You see that however, when it comes to the blue box, it does actually specify

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that this has changed

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and it's changed for the item UK one dot txt UK two dot txt as well as UK three

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dot txt.

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Once again, though, at the next task, the inverse is true. When you want to

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create multiple files

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on USA devices, the blue box has been skipped for all three items USA one USA

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two and America

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dot txt, whereas for the yellow box, which does belong to the USA group for

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this particular task,

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we have actually changed the device again for the item USA one USA two and
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we have actually changed the device again for the item USA one USA two and

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America dot txt.

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So let's go to our respective devices starting with the yellow box. Now, be

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aware, because I

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didn't specify a full absolute path file has been written into the home

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directory of the user.

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Now right now, I am the nugget user, as we can see here, really whom I command.

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However,

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because Ansible is executing as the user Ansible, it's going to be in that

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particular directory.

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Now, if I go into the home directory here, if I try to access Ansible, notice

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the permission is

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denied. So right now, all I will say is Sue Ansible for substitute user. If I
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denied. So right now, all I will say is Sue Ansible for substitute user. If I

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insert, I'll type in

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the answerable password, which is just the word Ansible. Now I am the answer

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able user. If I do

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an LS, we should be able to go into the answerable directory. And if I do an LS

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here, as we can see

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here, we do have these particular files, let's do the same thing on the blue

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box. So once again,

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on the blue box, I am the nugget user, let's substitute user to Ansible, type

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in the password

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of Ansible. If I now say who am I, I am Ansible. If I go to cd home and enter

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the Ansible directory

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to an LS, as we can see here, we actually have the UK files UK one UK two and
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to an LS, as we can see here, we actually have the UK files UK one UK two and

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UK three. So now that

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we've seen how to use loops as well as conditional statements, as well as loops

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with conditional

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statements, let's now validate what we've learned within this scale.