{"id":14291,"date":"2023-06-07T15:42:37","date_gmt":"2023-06-07T08:42:37","guid":{"rendered":"https:\/\/gcloudvn.com\/?p=14291"},"modified":"2023-08-16T13:40:22","modified_gmt":"2023-08-16T06:40:22","slug":"kubernetes-cluster-la-gi","status":"publish","type":"post","link":"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/","title":{"rendered":"What is a Kubernetes cluster? How to work with Kubernetes cluster"},"content":{"rendered":"<p style=\"text-align: justify;\"><b>Kubernetes cluster<\/b><span style=\"font-weight: 400;\"> or K8s Cluster is a container orchestration and management system, providing a flexible and powerful environment for deploying and managing applications in cloud environments. A Kubernetes cluster consists of a group of interconnected servers, organized into master nodes and worker nodes.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-14299 size-full\" src=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/7-things-to-look-for-in-a-kubernetes-managed-services-kms-provider-featured.jpg\" alt=\"What is a Kubernetes cluster? How to work with Kubernetes clusters 1\" width=\"600\" height=\"388\" srcset=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/7-things-to-look-for-in-a-kubernetes-managed-services-kms-provider-featured.jpg 600w, https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/7-things-to-look-for-in-a-kubernetes-managed-services-kms-provider-featured-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/#Tong_quan\" >overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/#Cac_thanh_phan_chinh_cua_Kubernetes_cluster\" >Main components of a Kubernetes cluster<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/#Cach_lam_viec_voi_Kubernetes_cluster\" >How to work with Kubernetes clusters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/#Cach_tao_Kubernetes_cluster_voi_Google_Cloud_Platform\" >How to create a Kubernetes cluster with Google Cloud Platform<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/gcloudvn.com\/en\/kienthuc\/kubernetes-cluster-la-gi\/#Tong_ket\" >In conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Tong_quan\"><\/span><b>overview<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">At a minimum, a cluster will contain a control panel and one or more computers. The dashboard is responsible for maintaining the desired state of the cluster, such as which applications are running and which containers they are using. The machines that actually run the applications and workloads.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Cluster is what differentiates Kubernetes from the rest as it includes: the ability to schedule and run containers on a group of devices, which can be physical or virtual, on-premise or in the cloud. Kubernetes containers are not bound to individual machines. Instead, they are abstracted across the cluster.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-14298 size-full aligncenter\" src=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/UD33x1XYKUSYG3C5JSz2MPAf.jpg\" alt=\"What is a Kubernetes cluster? How to work with Kubernetes cluster 2\" width=\"600\" height=\"300\" srcset=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/UD33x1XYKUSYG3C5JSz2MPAf.jpg 600w, https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/UD33x1XYKUSYG3C5JSz2MPAf-18x9.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cac_thanh_phan_chinh_cua_Kubernetes_cluster\"><\/span><b>Main components of a Kubernetes cluster<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Kubernetes cluster includes the following components:\u00a0<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Master Node: This is the central component of the Kubernetes cluster. Master node is responsible for managing and coordinating activities in the cluster. It includes the following main components:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">API Server: Provides an API interface for cluster management and interaction with other components.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Scheduler: Manages and distributes jobs (pods) across worker nodes based on resources and requirements.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Controller Manager: Monitors cluster status and performs control tasks such as managing replica sets, deployments, and services.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">etcd: Stores cluster configuration and state data.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Worker Nodes: These are physical or virtualized servers where containers run and work is performed. Each worker node includes the following components:\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Kubelet: Communicates with the master node and manages containers on that node.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Container Runtime: The environment that runs containers, such as Docker or containerd.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Kube-proxy: Manages network services and provides network connectivity to pods.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pod: Is the smallest unit in a Kubernetes cluster, containing one or more containers. Containers in the same pod share resources and can communicate with each other through localhost.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Service: Represents a group of pods and provides a persistent IP address and domain name to access that pod.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Volume: Provides a data storage mechanism for containers in pods.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Namespace: Separate and classify resources in the cluster into different logical groups.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">These components work together to form a Kubernetes cluster, providing an efficient management and orchestration environment for deploying and running applications in cloud environments.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cach_lam_viec_voi_Kubernetes_cluster\"><\/span><b>How to work with Kubernetes clusters<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">A kubernetes cluster will have a desired state, which is a state that helps determine which applications or workloads will run, along with the images they use, what resources will be provisioned to them, and other configuration details. other image.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The desired state is defined by configuration files made up of files like JSON or YAML that will help declare the type of application that will run and the number of copies required to run a system flawlessly.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The desired state of the cluster is determined using the Kubernetes API. This can be done from code (using kubectl) or by using the API to interact with the cluster to set or modify your desired state.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Kubernetes will automatically manage your cluster to match the desired state. As a simple example, let&#039;s say you deploy an application whose desired state is \u201c3\u201d, meaning 3 copies of the application will be launched. If 1 of those containers goes down, Kubernetes will see that there are only 2 replicas running, so it will add 1 more replica to satisfy the desired state.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">You can also use Kubernetes templates to automatically manage the scale of your cluster.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-14297 size-full aligncenter\" src=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/blog_master-databases-to-get-the-most-out-of-Kubernetes-clusters_V2.jpg\" alt=\"What is a Kubernetes cluster? How to work with Kubernetes clusters 3\" width=\"600\" height=\"314\" srcset=\"https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/blog_master-databases-to-get-the-most-out-of-Kubernetes-clusters_V2.jpg 600w, https:\/\/gcloudvn.com\/wp-content\/uploads\/2023\/06\/blog_master-databases-to-get-the-most-out-of-Kubernetes-clusters_V2-18x9.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cach_tao_Kubernetes_cluster_voi_Google_Cloud_Platform\"><\/span><b>How to create a Kubernetes cluster with Google Cloud Platform<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">To create a Kubernetes cluster above <a href=\"https:\/\/gcloudvn.com\/en\/google-cloud-platform\/\">Google Cloud Platform<\/a> (GCP), you need to do the following steps:\u00a0<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Step 1: Log in to your GCP account: Access the GCP Console (https:\/\/console.cloud.google.com) and log in to your GCP account.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">B2: Create a new project: In GCP Console, select or create a new project to deploy the Kubernetes cluster.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Step 3: Activate <a href=\"https:\/\/gcloudvn.com\/en\/google-kubernetes-engine-gke\/\">Kubernetes Engine<\/a>: In GCP Console, navigate to \u201cKubernetes Engine\u201d and enable the service if it is not already enabled.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Step 4: Create a Kubernetes cluster: In GCP Console, select \u201cKubernetes Engine\u201d &gt; \u201cClusters\u201d and click the \u201cCreate Cluster\u201d button. Adjust settings such as cluster name, geographic region, number of nodes, size and other options according to your requirements.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Step 5: Wait for the deployment process: After setting the options, click the \u201cCreate\u201d button and wait for the cluster deployment process to complete. GCP will automatically create nodes and configure the cluster for you. Step 6: Test and manage the cluster: After the cluster is deployed, you can use GCP Console or other management tools like kubectl to test and manage the cluster. Test network connectivity, deploy applications, and manage cluster resources according to your requirements.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Tong_ket\"><\/span><b>In conclusion<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">With the new <\/span><b>Kubernetes cluster<\/b><span style=\"font-weight: 400;\">, businesses can leverage flexibility and scalability to deploy and manage applications effectively. Using a Kubernetes cluster simplifies the deployment process, increasing application reliability and scalability in cloud environments.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Through the above article, we can see that Cloud has been an inevitable trend in the development and technology optimization systems of businesses. <a href=\"https:\/\/gcloudvn.com\/en\/\">Gimasys \u2013 Premier Partner of Google<\/a> in Vietnam is a unit that provides and consults on structures and designs optimal Cloud solutions for you. For technical support, you can <a href=\"https:\/\/gcloudvn.com\/en\/dang-ky-dung-thu\/\" target=\"_blank\" rel=\"nofollow noopener\">Contact Gimasys<\/a> \u2013 Premier Partner of Google in Vietnam according to information:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Hotline: <\/b><span style=\"font-weight: 400;\">0974 417 099 (HCM) | 0987 682 505 (HN)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Email: <\/b><span style=\"font-weight: 400;\">gcp@gimasys.com<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right;\"><b>Source: Gimasys<\/b><\/p>","protected":false},"excerpt":{"rendered":"<p>Kubernetes cluster hay K8s Cluster l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd v\u00e0 \u0111i\u1ec1u ph\u1ed1i c\u00e1c container, cung c\u1ea5p m\u1ed9t m\u00f4i tr\u01b0\u1eddng linh ho\u1ea1t v\u00e0 m\u1ea1nh m\u1ebd \u0111\u1ec3 tri\u1ec3n khai v\u00e0 qu\u1ea3n l\u00fd \u1ee9ng d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng \u0111\u00e1m m\u00e2y. M\u1ed9t&hellip;<\/p>","protected":false},"author":2,"featured_media":14296,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1,135],"tags":[],"class_list":["post-14291","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kienthuc","category-google-cloud-platform","entry","has-media"],"_links":{"self":[{"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/posts\/14291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/comments?post=14291"}],"version-history":[{"count":0,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/posts\/14291\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/media\/14296"}],"wp:attachment":[{"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/media?parent=14291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/categories?post=14291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gcloudvn.com\/en\/wp-json\/wp\/v2\/tags?post=14291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}