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This is the solution video for DKA of greed Labbe.



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So let's wait for the first question to load up.



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And the first question, this lab test your skills on a breeding ground in this cluster, we have a



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production cluster with applications running on it.



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Let us explore the set up first.



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What is the current of the cluster?



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All right.



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So let's go to the Domna and type in cube.



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You'll get notes.



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And here, at least, the cumulate version of Boudinot master, another one, and you can see that the



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vision is one dot one seven zero.



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And to see the cluster version, we can also run Cube CTCA version.



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And makers of Dashty Short Flag.



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And here you can see that the silver version is one out, one seven.



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How many nodes are part of this cluster?



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We already saw that there is a massive node and not zero one, which is the focus.



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So the answer is to.



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How many nodes can host Workload's in the cluster?



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To find this latest round Kubek deal, get Pott's.



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And we'll use the natural option.



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And here we can see that we have two pots and they are running on Masser and not the other one, so



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the exact option is to.



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How many applications are hosted on the cluster, so let's check the deployments for that.



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And there is one deployment by the name of Fred.



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What roads are the potholes around?



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So we already saw that it's running on Muser as well as Nunziata one, so let's select that.



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You are tasked to upgrade the cluster users, accessing the application must not be impacted and you



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cannot provision new VMS.



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What strategy would you use to upgrade the cluster?



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So if you have gone to the lecture, we have already seen that in such circumstances, we have to upgrade



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the node one by one and move close to the other, nor of the cluster so that the application is not



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affected.



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So that secret option.



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What is the latest cable version available for upgrade, so let's use Kube EDM tool and find out the



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latest available version.



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So clear the screen.



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And let's right cube Kubica.



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Sorry, that should be.



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Cube, Adam.



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Plan.



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And here you can see that the latest version that is available as vision one dot one seven, dot 11.



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We'll be upgrading the muscle, not first green, the muscle note of workload's and market on schedule



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will.



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Fathers will make use of the U.S. children, come on.



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So they can see it is already affecting parts from M. So it should not be hosting any more pods once



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this command is complete and it should also market on schedule, Will.



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So new parts will not be scheduled on the master.



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So let's wait for this command to complete.



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And then miraculously still get notes, you'll see that scheduling is disabled for master.



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Upgrade the muscle components to the exact vision one, not one aid, upgrade the cube Alium tool first,



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then the muscle components and finally the Kubelik.



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All right, so let's first upgrade the cube idiom to we already saw that it's on Vision one one seven,



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but let's validate that anyway.



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So you can see that it is on within one two one seven, so first thing would be to upgrade it.



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So for those will use out and stall and sort of upgrade.



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Out and stole KUB, LDM and the exact execution so you give is equal to one dot, one eight zero zero



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zero.



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So they should install the latest Ubaidi motion or the exact the motion one dot, one aide or the current



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version, which is one out, one seven.



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So it's when you're ready.



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And let's wait for the installation to complete.



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All right, so let's check the region again.



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And now it's running version one not wanted.



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So the next step is to upgrade the cluster, so we'll use Kube EDM upgrade appli version one dot one



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eight zero.



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That's the exact version that we want to agree to.



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Currently it's on one dot, one seven.



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So when you execute this command, it will run a bunch of pre-flight checks and if there are any errors,



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it will not let you proceed.



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So in this case, everything looks to be in order.



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So hit.



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Yes.



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Or y when you're ready to proceed.



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And right now, let's wait for the upgrade to complete for the cluster.



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As you can see, it is currently upgrading the control plane components.



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So this can take a couple of minutes.



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All right, so the cluster is now agreed to one that wanted.



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To validate this, we can again on Kubek Delusion.



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And here you can see that isover vision is one part, one eight cubicle client vision as one one seven.



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So if we can agree that if needed.



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But let's move on to the next step.



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If you're on Cube CTA, get notes, you'll see that division is still one dot, one seven.



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That's because the cube led vision has not been updated yet.



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So let's use the same command as before.



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And instead of medium, let's type in cumulate.



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So wait for the Kuebler process to come up, that can take a couple of minutes as well.



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So if you see this mess, they just give it a minute or two.



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And now you can see that the evolution of M.S. one dot, one eight, which is what we desire.



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So let's move on to the next question.



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All right, next, we have to mark the must note as scheduled, well, again, and to do this, we will



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use the cubicle uncowed on command.



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And now from the U.S., they'll get NATO to concede that it is in already relisted.



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Next, as the volcano drained, the volcano of will close and market on schedule.



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So let's use the same commanders before it just keeps cold rain



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and in this case will select another one.



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Secured still get those shoes that no one is the one right now, which is disabled for scheduling.



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So now let's agree, cannot do the exact version 1.0 on it, so let's get into another one.



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So I'm going to switch from the masseur to another one.



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It has password less SSX enabled so you don't have to enter a password.



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So, as before, let's update the committee to before, so I run the exact same command as before.



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Being is equal to here.



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So we'll essentially follow the same process as before what we carried out in the Senate.



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We will upgrade the EDM tools first and then upgrade the node configuration using cube medium.



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And then finally, we'll upgrade the cube, let.



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So next, let's upgrade the node configuration.



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So the correct come on is cube a.T.M, great node.



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And this is a very small process, adopted the Kuebler configuration, as you can see, it, is using



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the wooden one, not one end of the conflict map.



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And that said, let's now agree, the cube cube let.



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So exactly the same commanders before I accept that we will select cumulate to be upgraded right now.



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And that said, let's now head back to the muscle, not using control to log out and now I'm back in



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the muscle not.



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And if Iran keeps it, you'll get Newsweek division as one that won it for both Muser another one.



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And finally, let us remove the restriction and Mike Deaver can always schedule a well again, so let's



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try and keep clear, unquote, on that one and verify it once.



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And here we have now both nodes of the cluster which are in already state and which are running within



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one dot, one eight.



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So that was the last question.



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Thank you for joining me in this situation video.



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I'll see in the next one.