How to Setup a 3 Node Kubernetes Cluster for CKA Step by Step | K21Academy

𝐉𝐨𝐢𝐧 𝐭𝐡𝐞 𝐅𝐑𝐄𝐄 𝐌𝐚𝐬𝐭𝐞𝐫𝐜𝐥𝐚𝐬𝐬 𝐨𝐧 𝐃𝐨𝐜𝐤𝐞𝐫 & 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐅𝐨𝐫 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫𝐬 (𝐂𝐊𝐀) 𝐛𝐲 𝐜𝐥𝐢𝐜𝐤𝐢𝐧𝐠 𝐡𝐞𝐫𝐞 bit.ly/2YWOnm9
📌 A Kubernetes Cluster is a group of nodes or machines for running containerized applications. At the highest level of Kubernetes, there exist two kinds of servers a Master node and a worker node.
📌 These servers can be Virtual Machine (VM) or Physical Machine (Bare Metal). Together, these servers form a Kubernetes cluster and are controlled by the services that make up the Control Plane.
📌 There are 3 ways to deploy a Kubernetes cluster:
❶ By deploying all the components separately.
❷ Using Kubeadm.
❸ Using Managed Kubernetes Services
📌 A cluster is central to the basic architecture of Kubernetes: If you're running Kubernetes, you're running at least one cluster.
📌 A pod is a unit of replication on a cluster; A cluster can contain many pods, related or unrelated [and] grouped under the tight logical borders called namespaces.
💫 If you want to know all the steps for deploying a 3 Node Kubernetes Cluster, you can check out our video by our Cloud Expert💫
𝐖𝐡𝐞𝐫𝐞 𝐰𝐞 𝐜𝐨𝐯𝐞𝐫:
00:00 = Introduction
02:33 = How to set up a three-node Kubernetes cluster?
06:22 = Prerequisites for Cluster Setup
20:48 = How to install packages like Docker, kubectl, kubelet, kubeadm
24:44 = Initializing the cluster
26:27 = Joining worker nodes to the cluster
28:03 = How to check the status of Pods & Nodes
33:42 = Docker & Certified Kubernetes Administrator (CKA)
33:55 = FREE Class on CKA
34:08 = Learning Path for CKA
34:17 = Registration Link for FREE Class
𝐅𝐨𝐫 𝐦𝐨𝐫𝐞 𝐢𝐧-𝐝𝐞𝐩𝐭𝐡 𝐤𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐨𝐧 𝐭𝐡𝐢𝐬, 𝐫𝐞𝐚𝐝 𝐭𝐡𝐢𝐬 𝐛𝐥𝐨𝐠 bit.ly/33iOREV
𝐀𝐥𝐬𝐨, 𝐝𝐨 𝐧𝐨𝐭 𝐟𝐨𝐫𝐠𝐞𝐭 𝐭𝐨 𝐣𝐨𝐢𝐧 𝐮𝐬 𝐨𝐧 𝐨𝐮𝐫 𝐅𝐑𝐄𝐄 𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 𝐠𝐫𝐨𝐮𝐩 telegram.me/k21dockerkubernetes 𝐟𝐨𝐫 𝐫𝐞𝐠𝐮𝐥𝐚𝐫 𝐮𝐩𝐝𝐚𝐭𝐞𝐬 𝐨𝐧 𝐃𝐨𝐜𝐤𝐞𝐫𝐬 & 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬
🤔 𝐃𝐨 𝐲𝐨𝐮 𝐡𝐚𝐯𝐞 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬? 𝐋𝐞𝐭 𝐮𝐬 𝐤𝐧𝐨𝐰 𝐢𝐧 𝐭𝐡𝐞 𝐜𝐨𝐦𝐦𝐞𝐧𝐭 𝐬𝐞𝐜𝐭𝐢𝐨𝐧
#kubernetescluster #createkubernetescluster #threenodekubernetescluster #multiclusterkubernetes #kubernetesinstallation #howtoconfigurekubernetescluster #setupkubernetescluster #setupkubernetes #stepbystepkubernetesinstallation #setupkubernetes #kubernetestraining #howtoinstalldocker #askatul #k21academy
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See you next video!

[@zxcvbnm50748]

Very nice video with clear explanation of all the steps for the successful k8s cluster bring-up. Thank you for sharing this.

[@K21Academy]

Thank you for your kind words. It keeps us motivated to do more. Stay tuned for more such detailed content.

[@beshoynabil1073]

Really that was helpful!! Thank you

[@K21Academy]

Thanks, keep watching!

[@fahadbawazir1771]

Good

[@saibabaachanna5542]

Is it possible to configure the multizone k8s cluster using kubeadm method

[@DeepakSharma-zj3xd]

Yes, it is possible to configure a multi-zone Kubernetes cluster using the kubeadm method. Kubeadm is a popular tool for creating and managing Kubernetes clusters, and it supports the creation of multi-zone clusters. To configure a multi-zone cluster using kubeadm, you will need to follow these general steps: Set up your infrastructure: First, you will need to set up your infrastructure across multiple zones. This may involve creating virtual machines, setting up networking, and configuring load balancers. Install kubeadm: Next, you will need to install kubeadm on each node in your cluster. You can use a package manager like apt or yum to install kubeadm on each node. Initialize the cluster: Once kubeadm is installed, you can use it to initialize your cluster. You will need to specify the --control-plane-endpoint flag to configure a load balancer that can route traffic to the API server in each zone. Join worker nodes: After initializing the control plane nodes, you can join worker nodes to the cluster using the kubeadm join command. You will need to specify the control plane endpoint and any additional configuration necessary for networking and load balancing. Configure network and storage: Finally, you will need to configure your network and storage to work across multiple zones. You can use a network plugin like Calico or Flannel to set up networking, and you may need to configure storage providers like AWS EBS or Google Cloud Storage to work across multiple zones. Keep in mind that setting up a multi-zone Kubernetes cluster can be complex and requires careful planning and configuration. It is important to ensure that your infrastructure is set up correctly and that you have adequate redundancy and failover mechanisms in place. Hope this will help you. Thanks Team K21

[@gz4746]

what is the paint drawing program is using for this video? thanks

[@K21Academy]

Its a whiteboard Eric.

[@bharavikumar363]

Why we need docker,kubelet on master, please can you explain. I'm beginner in Kubernetes

[@K21Academy]

Docker and kubelet are needed on the master node in a Kubernetes cluster to manage the deployment and scheduling of containerized applications across the worker nodes. Docker provides the container runtime environment, while kubelet is responsible for managing the state of the nodes and ensuring that the correct number of containers are running. Hope this helps! Regards Team K21Academy

[@bharavikumar363]

But the kubelet and docker will be installed in worker nodes and the pods will be monitored by controller and scheduled in worker nodes by scheduler in master node right?

[@TheBestDanceMoves]

please I have a question. How can I create nodes in a particular namespace? maybe using kubect

[@K21Academy]

Hi @thebestdancemoves, Nodes are cluster-wide resources and cannot be created within a specific namespace. However, you can control pod placement on specific nodes using node selectors or affinity rules in your pod's configuration. First, label your nodes using kubectl label nodes =. Then, specify these labels in your pod specs within the desired namespace to ensure they are scheduled on the appropriate nodes.

[@TheBestDanceMoves]

Perfect, that worked. thank you@@K21Academy

[@K21Academy]

𝐉𝐨𝐢𝐧 𝐭𝐡𝐞 𝐅𝐑𝐄𝐄 𝐌𝐚𝐬𝐭𝐞𝐫𝐜𝐥𝐚𝐬𝐬 𝐨𝐧 𝐃𝐨𝐜𝐤𝐞𝐫 & 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐅𝐨𝐫 𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫𝐬 (𝐂𝐊𝐀) 𝐛𝐲 𝐜𝐥𝐢𝐜𝐤𝐢𝐧𝐠 𝐡𝐞𝐫𝐞 bit.ly/31xDoAx