{"id":21679,"date":"2023-02-21T15:51:37","date_gmt":"2023-02-21T14:51:37","guid":{"rendered":"https:\/\/www.dbi-services.com\/blog\/?p=21679"},"modified":"2023-02-21T15:51:38","modified_gmt":"2023-02-21T14:51:38","slug":"vmware-tanzu-kubernetes-create-your-first-cluster","status":"publish","type":"post","link":"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/","title":{"rendered":"VMware Tanzu Kubernetes: Create your first cluster"},"content":{"rendered":"\n<p>This is the second part of my journey with Tanzu (follow the first part here in case you missed it: <a href=\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-introduction\/\" target=\"_blank\" rel=\"noreferrer noopener\">VMware Tanzu Kubernetes: Introduction<\/a>), this time I&#8217;ll describe how to initiate our first managed cluster. Then, we&#8217;ll deep dive in how to start initializing our first cluster and deploy our first pod.<\/p>\n\n\n\n<p>If you followed my first post regarding Tanzu, you may remember that I described Tanzu Kubernetes for vSphere aka TKGs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Infrastructure example<\/h2>\n\n\n\n<p>Before creating our first cluster, let&#8217;s talk about the topology I used for my infrastructure.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"890\" height=\"486\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra.png\" alt=\"Infrastructure example: Tanzu Kubernetes for vSphere with a jump server\" class=\"wp-image-21681\" srcset=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra.png 890w, https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra-300x164.png 300w, https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra-768x419.png 768w\" sizes=\"auto, (max-width: 890px) 100vw, 890px\" \/><figcaption class=\"wp-element-caption\">Infrastructure example with Tanzu Kubernetes for vSphere<\/figcaption><\/figure>\n<\/div>\n\n\n<p>I decided to provision a VM as my &#8220;Jump server&#8221; for all commands to the supervisor and my provisioned cluster.<\/p>\n\n\n\n<p>To run commands to administer our supervisor, we need to install Kubernetes CLI Tools for vSphere in the jump server.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Configure Tanzu CLI<\/h2>\n\n\n\n<p>The following link will detail exactly how to install the kubectl and its vSphere plugin<strong>.<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/docs.vmware.com\/en\/VMware-vSphere\/7.0\/vmware-vsphere-with-tanzu\/GUID-0F6E45C4-3CB1-4562-9370-686668519FCA.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/docs.vmware.com\/en\/VMware-vSphere\/7.0\/vmware-vsphere-with-tanzu\/GUID-0F6E45C4-3CB1-4562-9370-686668519FCA.html<\/a><\/p>\n\n\n\n<p>Once installed in our environment, let&#8217;s try it.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl vsphere\nvSphere Plugin for kubectl.\n\nUsage:\n  kubectl-vsphere &#x5B;command]\n\nAvailable Commands:\n  help        Help about any command\n  login       Authenticate user with vCenter Namespaces\n  logout      Destroys current sessions with all vCenter Namespaces clusters.\n  version     Prints the version of the plugin.\n\nFlags:\n  -h, --help                     help for kubectl-vsphere\n      --request-timeout string   Request timeout for HTTP client.\n  -v, --verbose int              Print verbose logging information.\n\nUse &quot;kubectl-vsphere &#x5B;command] --help&quot; for more information about a command.\n<\/pre><\/div>\n\n\n<p>Nice, now we are ready to connect to the supervisor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Connection to the Supervisor<\/h2>\n\n\n\n<p>To connect to the supervisor, you will require 2 things:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An account in the supervisor<\/li>\n\n\n\n<li>Install the vCenter server root CA in the jump server (it can be override with &#8211;insecure-skip-tls-verify flag for test purpose)<\/li>\n\n\n\n<li>Supervisor server name (it can be an IP address) <\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl-vsphere login --insecure-skip-tls-verify --server 172.18.100.102 --vsphere-username myaccount\n\nKUBECTL_VSPHERE_PASSWORD environment variable is not set. Please enter the password below\nPassword:\nLogged in successfully.\n\nYou have access to the following contexts:\n   172.18.100.102\n   tkg-test\n\nIf the context you wish to use is not in this list, you may need to try\nlogging in again later, or contact your cluster administrator.\n\nTo change context, use `kubectl config use-context &lt;workload name&gt;`\n<\/pre><\/div>\n\n\n<p><span style=\"text-decoration: underline\">Tips:<\/span> You can set your password using KUBECTL_VSPHERE_PASSWORD for more convenience.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ export KUBECTL_VSPHERE_PASSWORD=mypassword\n<\/pre><\/div>\n\n\n<p>We can notice 2 contexts available which are in fact <strong>vSphere namespaces<\/strong>.<\/p>\n\n\n\n<p>The first one (172.18.100.102) represents the Supervisor namespace and the second one is the vSphere namespace created by our vSphere admin.<\/p>\n\n\n\n<p>Switch on it.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl config use-context tkg-test\nSwitched to context &quot;tkg-test&quot;.\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">Describe our cluster<\/h2>\n\n\n\n<p>In this step, the vSphere admin has already configured all requirements needed to configure our first cluster. Our task as a DevOps Engineer is to use these new resources into a YAML description file.<\/p>\n\n\n\n<p>Let&#8217;s take a look at it.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: yaml; title: ; notranslate\" title=\"\">\napiVersion: run.tanzu.vmware.com\/v1alpha2\nkind: TanzuKubernetesCluster\nmetadata:\n  name: tkgs-cluster-1\n  namespace: tkg-test\nspec:\n  topology:\n    controlPlane:\n      replicas: 3\n      vmClass: best-effort-medium\n      storageClass: tkg-gold-storagepolicy\n      tkr:\n        reference:\n          name: v1.21.6---vmware.1-tkg.1.b3d708a\n    nodePools:\n    - name: worker-pool\n      replicas: 3\n      vmClass: best-effort-large\n      storageClass: tkg-gold-storagepolicy\n      tkr:\n        reference:\n          name: v1.21.6---vmware.1-tkg.1.b3d708a\n<\/pre><\/div>\n\n\n<p>In this example, I used the kind <strong>TanzuKubernetesCluster<\/strong> to describe my cluster. It requires the following informations:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>number of replicas for each master and worker node<\/li>\n\n\n\n<li>vmClass: Instance type available<\/li>\n\n\n\n<li>storageClass: kind of storage at vSphere layer<\/li>\n\n\n\n<li>Kubernetes version to install<\/li>\n<\/ul>\n\n\n\n<p>As my vSphere is version 7.0 u3, my highest available compatible Kubernetes version is v1.21.6<\/p>\n\n\n\n<p>Lets&#8217; create it.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl apply -f test-cluster.yml\ntanzukubernetescluster.run.tanzu.vmware.com\/tkgs-cluster-1 created\n<\/pre><\/div>\n\n\n<p>Now, check our workload in it.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get tanzukubernetesclusters\nNAME             CONTROL PLANE   WORKER   TKR NAME                           AGE   READY   TKR COMPATIBLE   UPDATES AVAILABLE\ntkgs-cluster-1   3               4        v1.21.6---vmware.1-tkg.1.b3d708a   53s   True    True\n<\/pre><\/div>\n\n\n<p>And Voil\u00e0! Very easy to create a Kubernetes cluster isn&#8217;t it? Plus, we can observe we created a multi-master Kubernetes cluster with no effort comparing with kubeadm methodology<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jump into our cluster<\/h2>\n\n\n\n<p>To jump into our freshly deployed Kubernetes cluster, we will use again the kubectl vSphere command.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl-vsphere login --insecure-skip-tls-verify \\\n--server 172.18.100.102 \\\n--vsphere-username myaccount \\\n--tanzu-kubernetes-cluster-namespace tkg-test \\\n--tanzu-kubernetes-cluster-name tkgs-cluster-1\n\nLogged in successfully.\n\nYou have access to the following contexts:\n   172.18.160.102\n   tkg-test\n   tkgs-cluster-1\n\nIf the context you wish to use is not in this list, you may need to try\nlogging in again later, or contact your cluster administrator.\n\nTo change context, use `kubectl config use-context &lt;workload name&gt;`\n<\/pre><\/div>\n\n\n<p>We&#8217;re in! Our cluster is composed of 3 master nodes and 3 worker nodes. We can check that.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get nodes -o wide\nNAME                                                STATUS   ROLES                  AGE   VERSION            INTERNAL-IP     EXTERNAL-IP   OS-IMAGE                 KERNEL-VERSION       CONTAINER-RUNTIME\ntkgs-cluster-1-control-plane-4rrqm                  Ready    control-plane,master   15m   v1.21.6+vmware.1   172.18.100.30   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\ntkgs-cluster-1-control-plane-btvq5                  Ready    control-plane,master   15m   v1.21.6+vmware.1   172.18.100.26   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\ntkgs-cluster-1-control-plane-ftr6f                  Ready    control-plane,master   15m   v1.21.6+vmware.1   172.18.100.29   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\ntkgs-cluster-1-worker-pool-bngdt-56b65999cd-6lqs5   Ready    &lt;none&gt;                 15m   v1.21.6+vmware.1   172.18.100.24   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\ntkgs-cluster-1-worker-pool-bngdt-56b65999cd-7xkzp   Ready    &lt;none&gt;                 15m   v1.21.6+vmware.1   172.18.100.23   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\ntkgs-cluster-1-worker-pool-bngdt-56b65999cd-ggx7x   Ready    &lt;none&gt;                 15m   v1.21.6+vmware.1   172.18.100.62   &lt;none&gt;        VMware Photon OS\/Linux   4.19.198-1.ph3-esx   containerd:\/\/1.4.11\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">Test our storage<\/h2>\n\n\n\n<p>Let&#8217;s query our cluster to create our Persistent Volume Claim (PVC).<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get storageclass\n\nNAME                     PROVISIONER              RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE\n\ntkg-gold-storagepolicy   csi.vsphere.vmware.com   Delete          Immediate           true                   5h38m\n<\/pre><\/div>\n\n\n<p>We can create our PVC using the storage class mentioned above.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: yaml; title: ; notranslate\" title=\"\">\nkind: PersistentVolumeClaim\napiVersion: v1\nmetadata:\n  name: tkgs-test-pvc\nspec:\n  accessModes:\n    - ReadWriteOnce\n  storageClassName: tkg-gold-storagepolicy\n  resources:\n    requests:\n      storage: 2Gi\n<\/pre><\/div>\n\n\n<p>Once applied, we can check if it is available.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get pvc\nNAME            STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS             AGE\ntkgs-test-pvc   Bound    pvc-232d636d-8904-40c5-b22b-283e21ecdb9f   2Gi        RWO            tkg-gold-storagepolicy   6s\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">Deploy our first pod<\/h2>\n\n\n\n<p>Maybe you&#8217;re wondering how can I already deploy my first pod without configuring my Kubernetes Network (CNI), this is all the magic of a managed Kubernetes, all is pre-configured by the vSphere administrator and by default TKGs cluster are provisioned with <strong>Antrea<\/strong> CNI.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get deploy -n kube-system\nNAME                   READY   UP-TO-DATE   AVAILABLE   AGE\nantrea-controller      1\/1     1            1           30m\nantrea-resource-init   1\/1     1            1           30m\ncoredns                2\/2     2            2           30m\n<\/pre><\/div>\n\n\n<p>Ok, now deploy our first &#8220;test pod&#8221;<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl run mypod --image=nginx\npod\/mypod created\n<\/pre><\/div>\n\n\n<p>Is the pod functional and correctly scheduled?<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: bash; title: ; notranslate\" title=\"\">\n$ kubectl get pod -o wide\nNAME    READY   STATUS    RESTARTS   AGE   IP             NODE                                                NOMINATED NODE   READINESS GATES\nmypod   1\/1     Running   0          19s   192.168.5.40   tkgs-cluster-1-worker-pool-bngdt-56b65999cd-xwgwp   &lt;none&gt;           &lt;none&gt;\n<\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Our cluster is now ready, we can go further on Tanzu Kubernetes specificities like components available regarding your edition and how to initialize Tanzu component packaging. Stay tuned for the next blog.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is the second part of my journey with Tanzu (follow the first part here in case you missed it: VMware Tanzu Kubernetes: Introduction), this time I&#8217;ll describe how to initiate our first managed cluster. Then, we&#8217;ll deep dive in how to start initializing our first cluster and deploy our first pod. If you followed [&hellip;]<\/p>\n","protected":false},"author":109,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1320,1522],"tags":[151,89,2808],"type_dbi":[],"class_list":["post-21679","post","type-post","status-publish","format-standard","hentry","category-devops","category-kubernetes","tag-devops","tag-kubernetes","tag-tanzu"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>VMware Tanzu Kubernetes: Create your first cluster - dbi Blog<\/title>\n<meta name=\"description\" content=\"Tanzu Kubernetes for vSphere first steps to connect to the supervisor and create your first managed cluster.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"VMware Tanzu Kubernetes: Create your first cluster\" \/>\n<meta property=\"og:description\" content=\"Tanzu Kubernetes for vSphere first steps to connect to the supervisor and create your first managed cluster.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\" \/>\n<meta property=\"og:site_name\" content=\"dbi Blog\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-21T14:51:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-21T14:51:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra.png\" \/>\n<meta name=\"author\" content=\"DevOps\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DevOps\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\"},\"author\":{\"name\":\"DevOps\",\"@id\":\"https:\/\/www.dbi-services.com\/blog\/#\/schema\/person\/4cd1b5f8a3de93f05a16ab8d7d2b7735\"},\"headline\":\"VMware Tanzu Kubernetes: Create your first cluster\",\"datePublished\":\"2023-02-21T14:51:37+00:00\",\"dateModified\":\"2023-02-21T14:51:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\"},\"wordCount\":599,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2023\/01\/Tanzu-Infra.png\",\"keywords\":[\"DevOps\",\"kubernetes\",\"Tanzu\"],\"articleSection\":[\"DevOps\",\"Kubernetes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\",\"url\":\"https:\/\/www.dbi-services.com\/blog\/vmware-tanzu-kubernetes-create-your-first-cluster\/\",\"name\":\"VMware Tanzu Kubernetes: Create your first cluster - 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