Highly Available Control Plane with kubeadm 1.14+ 

so this is using stacked control plane and etcd nodes. do you have a video using external etcd nodes? Very informative video. Learned a lot. Thanks!

I have a question. When joining a master node, the following messages appear: error execution phase preflight: [preflight] Some fatal errors occurred: [ERROR FileAvailable--etc-kubernetes-kubelet.conf]: /etc/kubernetes/kubelet.conf already exists [ERROR Port-10250]: Port 10250 is in use In what state should these nodes be added?

For my builds i export the kubeconfig file in build machines to establish connection. Is it going to be same in this case?

thanks for this video. i got error when access curl xx.xx.xx.xx curl: (7) Failed to connect to xx.xx.xx.xx port 6443: Connection refused. my firewall off. on other hand master1 kubelet status show master1 not found. any succession on this ?

Excellent video!! I have one question though. I've bootstraped my cluster a couple of months ago with a single control plane and some workers. No LoadBalancer in front. Now I wanted to make it HA, by adding 2 more masters I already created a LB (haproxy). What should I change in my master01? (this master was not initialized with a LB ip as you did in your video) Many thanks in advance!

Hi Octetz, Your video really helped me. Implemented multi master for kubernetes version 1.18.0 using kubeadmconfig file API version beta2.

if we don't give the flag --experimental-control-plane and --certificate-key ? node will join cluster not as master but as application node? I got great information about HA setup using kubeadm. I am thinking there are similar steps for joining nodes (not master) using nginx node as lb.

thank you very much for this tutorial. Will this setup make http/https endpoint highy available , i mean will it make https/https traffic loadbalanced among the master ? thanks you

can you do this with cloud provider?? (AWS/GCP) seems we need to do additional config for Cloud !

also how to pass client HTTP/HTTPS traffic through HAProxy to multi-master cluster? any idea?

I don t really understand why someone would dislike this. Good job! Keep the good work and thank you for the added value!

maybe I missed, could you pls answer is it possible to join worker nodes?

Thanks you very much, this informative. can you do automation using ansible

Thank you very much, can I use microk8s to build multi master cluster?

When I try to execute `kubeadm init --config=/etc/kubernetes/kubeadm/kubeadm-config.yaml --experimental-upload-certs `, I faced "unknown flag: --experimental-upload-certs" error, next I tried `kubeadm init --config /etc/kubernetes/kubeadm/kubeadm-config.yaml --upload-certs`, but the initialization got stock in "error execution phase wait-control-plane: couldn't initialize a Kubernetes cluster", can any body help please?

real like your terminal layout, hope you can do a tutoral about your daily workstation config(windows tiling etc,.) thx

A great video for the HA setup.Thank you.Good work!!

Love this video..I am new to k8s and you are helping me out a lot. keep up the good works!

awesome, answering all of my curious mind.. thank you so much

Nice video to setup multi kubeadm, Really it's working nicely.

Really nice. Can i use this in production environment? If any of mater node have problem we can use the same method of creating certs and can join right?

Such a fantastic video. Thanks a lot for your time

Really Nice Thanks a lot

Loved it and subscribed to your channel as well.

Thank you so much

Great presentation

Thank you very much for your video, it has helped me a lot.

Thanks you! You showed a step that I didn't know how to do!

Fantastic !! Spot on Bro :) Thank you so much !!

Hi sir. I want to ask why I could not use kubectl to see the pod after I shut down one of the master node. HA means I have three master node. I shut down one of them. I still have two masters. The other master node would move pod to available node. Many thanks.

thank you. this is exactly what i was looking for

Nice article to follow with detailed steps

Thanks man, it has helped me a lot

Excellent 👌