Part 6 | Most Important CKA Question | ETCD Backup & Restore | Certified Kubernetes Administrator

[@EJBest-DevSecOps]

Such great details and guidance!!!

[@iajeetkhan]

I am glad it helped 🙏🏻

[@premanand86]

I have booked the CKA exam and I follow your all videos and its really great help for me .. Thanks !!

[@iajeetkhan]

That's great! I wish you all the best for the exam. Please practice all questions on your own. Remember to switch to the required "context" for each question in the exam. Don't spent too much time on a particular question, just flag it to attempt later. Give your best and do let me know the results and before results, do let us know if questions in the video are similar to exam questions or not. This will help the community. Thanks!

[@iajeetkhan]

Enjoy! Part 7 has been released - kzbin.info/www/bejne/lWq1i3mYfbCjkKc

[@iajeetkhan]

Thanks for your support. Here is a gift for you - A free coupon to enroll in my Udemy Course - www.udemy.com/course/performance-optimization-tuning-tcpip-nginx-linux/?couponCode=THANKS

[@diegoamaya6591]

Thanks, you are a very good explainer

[@iajeetkhan]

I am humbled 🙏🏻🙏🏻 Please support by sharing the playlist on LinkedIn and other social media platform. And please register yourself to get a massive 50% discount on certification voucher. Go through my channel to find the discount video. The sale is about to start from 27th of November. Thanks

[@mrkumar9591]

Hi Ajeet, Changing the hostpath is enough ? don't we change the - --data-dir=/var/lib/etcd in the etcd.yaml file ? Is it really mandatory to change the file path like this..?

[@luqmanhamdan9285]

No need, I tried to change the hostPath which located under etcd-certs and it mess up your k8s cluster. Refer to k8s documentation, it is your best friend during the exam if you have any doubts.

[@moinsyed195]

Really helpful

[@iajeetkhan]

Glad to hear it was helpful. Just in case if you are looking for kubernetes certification, there is a cyber sale going on. Pls watch my latest video to know more details.

[@karankumarkaran1268]

@Ajeet, The etcd utility tools are installed already in the exam or we have to install them manually... If we install it manually, where I get the commands to install ETCD

[@iajeetkhan]

It will be pre-installed

[@karankumarkaran1268]

Thank you for your information @Ajeet

[@iajeetkhan]

I am glad my content is helping. Please like the videos and subscribe the channel 🙏🏻

[@akdevsecops]

you got a new subscriber 😇

[@iajeetkhan]

Thanks for your love and support. Part 7 is releasing in couple of days.

[@iajeetkhan]

Enjoy! Part 7 has been released - kzbin.info/www/bejne/lWq1i3mYfbCjkKc

[@iajeetkhan]

Thanks for your support. Here is a gift for you - A free coupon to enroll in my Udemy Course - www.udemy.com/course/performance-optimization-tuning-tcpip-nginx-linux/?couponCode=THANKS

[@abhishekkulkarni3466]

Hi Sir Thanks for the video. After following the solution mentioned in video my etcd pod stuck in pending state (after restore). Please help me with this.

[@iajeetkhan]

Hi, you can run the command - kubectl describe pod . This will describe the pod details and in the event section it will show why it is in pending state. Hope this helps in debugging. Thanks

[@Remya.Hari.G]

Test environment is too slow 🐌. Any tips?

[@iajeetkhan]

You can create a local setup of minikube for practice or use killerkoda playground as shown in the video

[@erdi005]

Hi! I took my CKA exam yesterday, I got the question about ssh into node, and perform back up and restore of etcd with peer.key and peer.crt. If I passed those in when backing up, I received “no such file or directory” error on the peer.crt/peer.key. Any idea what to do here? Can’t find any examples out there that does this either. I also tried server.crt and server.key, but all I got was “permission denied”, so I suspect I have to authenticate with the peer flags somehow(?) These peer flags were also not present when checking the etcd pod’s commands. I do see in the docs, under Securing Communication that there are some peer flags for configuring etcd with secure peer comm., but these flags were unknown to the etcdctl tool

[@7BlackJack8]

sudo? it's strage, i'm preparing for CKA and i think that the questions must be doable without permissions problems..

[@ParikramaWithAniket]

Hi Ajeet, after restoring the backup what we have to do like we have to check via k get po -n kube-system or we have to stop etcd service then edit file and start the service. I am asking as per exam prospective. whatever you do is enough or we have to restart ETCD

[@HyperTeve]

On the exam I am receiving a failed permission to the key file when running backup. Any solution for this issue? Missed it by 1% unfortunately

[@iajeetkhan]

Generally, the permission on key file should be either 400 or 600. You can change the permission by running the command sudo chmod 400 file.key

[@shadabmirza2361]

Hi It's required to create etcd pod from new backup in cka

[@iajeetkhan]

Hi, it depends on the question. For restoration, you just need to follow the steps as mentioned in the video. Hope it helps😇

[@shadabmirza2361]

@@iajeetkhan In my first attempt of CKA. I have seen that in question restore backup from a particular file path not much information.

[@iajeetkhan]

Then you will just need to edit the etcd manifest with the new path and it should work. You can do kubectl describe command on etcd pods to check if its using a new path.

[@iajeetkhan]

@MJOfficial2023 can you check what error it’s giving. Run kubectl describe command for etcd pod. This will show the detail of issue

[@Aditya-b9e3v]

@@iajeetkhan I am getting this error sir on Killacoda controlplane $ ETCDCTL_API=3 --data-dir=/var/lib/etcd-backup snapshot restore /opt/etcd-backup.db bash: --data-dir=/var/lib/etcd-backup: No such file or directory

[@KishorPawar-y8v]

Hi Guys, Is it anyone gave exam of CKA by referring Ajeet sir videos, I saw this videos , that are helpful to understand but just want to know how much you got help in real time CKA exam by watching this videos, Is it same questions you faced in exam?

[@iajeetkhan]

Hi, These questions are very much similar to what you will face in the exam. All you need to do is at least practice all the questions twice and you should be able to solve all these questions on your own. For verification - many people have reported in comments that they have cleared the exams by watching my videos. You can also search for "Ajeet Khan CKA" on LinkedIn and you will find many people posting their successful attempt and tagging me to thank me for these videos. Rest all depends on your practice. I wish you all the best for the exam. Do share your experience.

[@KishorPawar-y8v]

Thanks @iajeetkhan, for your quick response. I'll do more practise on this.

[@akdevsecops]

thankyou bro

[@iajeetkhan]

Thanks for your support. Here is a gift for you - A free coupon to enroll in my Udemy Course - www.udemy.com/course/performance-optimization-tuning-tcpip-nginx-linux/?couponCode=THANKS

[@MahindraDn-n6o]

Thank you for creating these videos sir, I hope they will be very useful for my upcoming exam. Could you please provide the remaining questions as well as soon as possible? My CKA exam is scheduled for July 10th.

[@iajeetkhan]

I am working hard to complete the series ASAP. This requires lot of efforts of creating content and editing it. Since I am a full-time working DevOps, I need to manage the time accordingly on weekends. But be assured, I will do my best to release the remaining parts ASAP. 🙏🏻🙏🏻

[@iajeetkhan]

Enjoy! Part 7 has been released - kzbin.info/www/bejne/lWq1i3mYfbCjkKc

[@iajeetkhan]

Thanks for your support. Here is a gift for you - A free coupon to enroll in my Udemy Course - www.udemy.com/course/performance-optimization-tuning-tcpip-nginx-linux/?couponCode=THANKS

[@diegoamaya6591]

Would be amazing an Udemy course about cka, thanks again for your effort.

[@rakeshsjadhav]

In case of backup restore using ETCDCTL_API=3 snapshot restore , we also need to modify path /var/lib/etcd-from-backup Do we need to use ssh & use command sudo -i while we enter path /var/lib/etcd to /var/lib/etcd-from-backup I tried ssh controlplane but could not find any file under /var/lib

[@iajeetkhan]

That depends on etcd installation. I suggest you to create your own cluster with etcd and then try with the path you have used during the installation of etcd. I will try to cover installation of cluster with etcd in upcoming videos. BTW, part 7 will be released in couple of days.

[@iajeetkhan]

Enjoy! Part 7 has been released - kzbin.info/www/bejne/lWq1i3mYfbCjkKc

[@iajeetkhan]

Thanks for your support. Here is a gift for you - A free coupon to enroll in my Udemy Course - www.udemy.com/course/performance-optimization-tuning-tcpip-nginx-linux/?couponCode=THANKS

[@rakeshsjadhav]

@@iajeetkhan I cleared CKA exam.thanks for your videos

[@iajeetkhan]

Congratulations 🎉 Please give a shoutout on LinkedIn and other social platform by sharing this channel 🙏🏻

[@SunitaSonawane2007]

Hello Ajeet, how many more Qs u r going to cover?

[@iajeetkhan]

Hi, I am planning 10 parts, out of which 6 parts + 1 (Tips Video) is already released till date. But that's not the end. I will be making more videos as long as I discover new questions. But 10 Parts should be good enough to clear the exam easily with good marks. 🙏🏻🙏🏻

[@SunitaSonawane2007]

@@iajeetkhan thats great. Please upload early. I am planning for exam may be after 1 week. Atleast list out Qs if video creation is not possible within a week.

[@akdevsecops]

@@iajeetkhan could you please 🥺 release those remaining parts as soon as possible

[@iajeetkhan]

@@akdevsecops I am trying my best to release as soon as possible but it takes time to create content and then edit it. Part 7 will be released in a couple of days.

[@iajeetkhan]

Enjoy! Part 7 has been released - kzbin.info/www/bejne/lWq1i3mYfbCjkKc

[@ankitdahiya2227]

Hi Ajeet, I am trying in killer.sh, After doing the backup and restore and updating the location in etcd.yaml, etcd pod is going into a pending state and not showing any error in describe output. Any suggestion will help me in exam!

[@iajeetkhan]

Try to check the pod logs

[@amreshpattnaik6]

Today I gave CKA. The etcd pod was in pending state after restore. But I did all the steps correctly. Did not gte enough time to re verify again

[@7BlackJack8]

did u pass?