Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Mengubah ukuran cluster pengguna berarti menambahkan atau menghapus node. Menambahkan node
memerlukan alamat IP yang tersedia untuk node baru. Anda mengubah ukuran cluster pengguna dengan mengubah jumlah replika di kumpulan node.
Untuk mengetahui informasi tentang batas maksimum dan minimum untuk cluster pengguna, lihat
Batas skalabilitas.
Jika ingin memiliki node N setelah mengubah ukuran, Anda harus memiliki alamat IP
N + 1 yang tersedia.
Sebelum mengubah ukuran cluster, pastikan Anda memiliki cukup alamat IP. Cara Anda melakukan
verifikasi bergantung pada apakah cluster menggunakan server DHCP atau alamat IP statis.
DHCP
Jika cluster menggunakan DHCP, pastikan server DHCP dapat menyediakan alamat IP yang memadai. Rentang IP harus dapat menyediakan setidaknya satu alamat IP lebih banyak daripada jumlah node yang akan ada di cluster setelah pengubahan ukuran.
IP Statis
Cara memverifikasi bahwa Anda memiliki cukup alamat IP statis bergantung pada apakah
cluster terdaftar di GKE On-Prem API. Cluster pengguna terdaftar di GKE On-Prem API jika salah satu hal berikut benar:
Cluster dibuat menggunakan konsol Google Cloud , Google Cloud CLI (gcloud CLI), atau Terraform, yang otomatis mendaftarkan cluster di GKE On-Prem API. Secara kolektif, aplikasi standar ini
disebut sebagai klien GKE On-Prem API.
Jika GKE On-Prem API mengelola cluster pengguna, gunakan konsol untuk menghitung jumlah IP dan menambahkan lebih banyak IP jika diperlukan.
Jika cluster pengguna tidak dikelola oleh GKE On-Prem API, Anda dapat menjalankan
gkectl update cluster terlebih dahulu, yang memverifikasi apakah Anda telah mengalokasikan alamat IP
yang cukup di cluster. Jika tidak, Anda dapat menemukan jumlah alamat IP tambahan
yang diperlukan dalam pesan error.
Menambahkan IP statis
Jika cluster dikelola oleh GKE On-Prem API, gunakan konsol untuk menambahkan lebih banyak alamat IP. Jika tidak, gunakan command line di workstation admin Anda.
Konsol
Di konsol, buka halaman ringkasan cluster Google Kubernetes Engine.
Pilih Google Cloud project tempat cluster pengguna berada.
Di daftar cluster, klik nama cluster, lalu klik
Detail selengkapnya di panel Detail.
Di bagian Networking, klik edit
Edit.
Di kotak dialog Tambahkan alamat IP statis tambahan, klik
Tambahkan Alamat IP. Masukkan alamat IP dan, secara opsional, nama host.
Ulangi jika perlu. Setelah selesai, klik Selesai.
Pastikan semua alamat IP yang ingin Anda gunakan untuk cluster pengguna
disertakan dalam file blok IP. File blok IP harus memiliki setidaknya
satu alamat IP lebih banyak daripada jumlah node yang akan berada dalam cluster
setelah pengubahan ukuran.
Untuk melihat alamat yang dicadangkan untuk cluster pengguna:
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-09-01 UTC."],[],[],null,["Resizing a user cluster means adding or removing nodes. Adding nodes\nrequires that IP addresses are available for the new nodes. You resize a user\ncluster by changing the number of replicas in the node pool.\n\nFor information on maximum and minimum limits for user clusters, see\n[Scalability limits](/kubernetes-engine/distributed-cloud/vmware/docs/concepts/scalability#limits).\n\nFor information on managing node pools, see\n[creating and managing node pools](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/managing-node-pools).\n\nVerify that enough IP addresses are available\n\nIf you intend to have N nodes after the resizing, then you must have N + 1 IP\naddresses available.\n\nBefore resizing a cluster, verify that you have enough IP addresses. How you do\nthe verification depends on whether the cluster uses a DHCP server or static IP\naddresses. \n\nDHCP\n\nIf the cluster uses DHCP, check that the DHCP server can provide enough IP\naddresses. It must be able to provide at least one more IP address than the\nnumber of nodes that will be in the cluster after the resizing.\n\nStatic IPs\n\nHow you verify that you have enough static IP addresses depends on whether the\ncluster is enrolled in the GKE On-Prem API. A user cluster is enrolled in\nthe GKE On-Prem API if one of the following is true:\n\n- The cluster was created by using the Google Cloud console, the Google Cloud CLI\n (gcloud CLI), or Terraform, which automatically enrolls the\n cluster in the GKE On-Prem API. Collectively, these standard applications are\n referred to as GKE On-Prem API clients.\n\n- The command `gkectl enroll cluster` was run on a user cluster, which\n [configures it to be managed by the GKE On-Prem API](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/enroll-cluster).\n\nIf the GKE On-Prem API is managing a user cluster, use the\nconsole to count the number of IPs and add more IPs if needed.\nIf the user cluster isn't managed by the GKE On-Prem API, you can run\n`gkectl update cluster` first, which verifies whether you've allocated enough\nIP addresses in the cluster. If not, you can find the number of extra IP\naddresses needed in the error message.\n\nAdd static IPs\n\nIf the cluster is managed by the GKE On-Prem API, use the\nconsole to add more IP addresses. Otherwise, use the command\nline on your admin workstation. \n\nConsole\n\n1. In the console, go to the **Google Kubernetes Engine clusters overview**\n page.\n\n [Go to GKE clusters](https://console.cloud.google.com/kubernetes/list/overview)\n2. Select the Google Cloud project that the user cluster is in.\n\n3. In the cluster list, click the name of the cluster, and then click\n **More details** in the **Details** panel.\n\n4. In the **Networking** section, click edit **Edit**.\n\n5. In the **Add additional static IP addresses** dialog box, click\n **Add IP Address** . Enter the IP address and optionally, a hostname.\n Repeat as needed. When finished, click **Done**.\n\nCommand line\n\n1. Open the user cluster's [IP block file](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/ip-block-file)\n for editing.\n\n2. Verify that all of the IP addresses you intend to use for the user cluster\n are included in the IP block file. The IP block file should have at least\n one more IP address than the number of nodes that will be in the cluster\n after the resizing.\n\n3. To view the addresses reserved for a user cluster:\n\n ```bash\n kubectl get cluster --kubeconfig ADMIN_CLUSTER_KUBECONFIG \\\n --namespace USER_CLUSTER_NAME USER_CLUSTER_NAME --output yaml\n ```\n\n Replace the following:\n - \u003cvar translate=\"no\"\u003eADMIN_CLUSTER_KUBECONFIG\u003c/var\u003e: the path of the admin cluster kubeconfig file\n - \u003cvar translate=\"no\"\u003eUSER_CLUSTER_NAME\u003c/var\u003e: the name of the user cluster\n4. Add as many additional static IP addresses to the corresponding block as required, and then\n run `gkectl update cluster`.\n\nHere is an example of an IP block file that has four IP addresses and the\ncorresponding hostnames:\n\n```\nhostconfig:\ndns: 172.16.255.1\ntod: 216.239.35.0\nblocks:\n- netmask: 255.255.248.0\n gateway: 21.0.135.254\n ips:\n - ip: 21.0.133.41\n hostname: user-node-1\n - ip: 21.0.133.50\n hostname: user-node-2\n - ip: 21.0.133.56\n hostname: user-node-3\n - ip: 21.0.133.47\n hostname: user-node-4\n```\n\nResize the cluster \n\nConsole\n\n1. In the console, go to the **Google Kubernetes Engine clusters overview**\n page.\n\n [Go to GKE clusters](https://console.cloud.google.com/kubernetes/list/overview)\n2. Select the Google Cloud project that the user cluster is in.\n\n3. In the cluster list, click the name of the cluster, and then click\n **More details** in the **Details** panel.\n\n4. Click the **Nodes** tab.\n\n5. Click the name of the node pool that you want to resize.\n\n6. Click edit **Resize**.\n\n7. In the **Nodes** field, enter the number of nodes that you want in\n the node pool, and then click **Done**.\n\n8. Click arrow_back to go back to the\n previous page.\n\n9. The console displays **Cluster status: changes in\n progress** . Click **Show Details** to view the **Resource status\n condition** and **Status messages**.\n\nCommand line\n\nIn the\n[user cluster configuration file](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/user-cluster-configuration-file-latest#nodepool-replicas-field),\nupdate the value of the `replicas` field in one or more of the `nodePools`\nelements.\n\nResize the cluster:\n\n```\ngkectl update cluster --kubeconfig ADMIN_CLUSTER_KUBECONFIG --config USER_CLUSTER_CONFIG\n```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eADMIN_CLUSTER_KUBECONFIG\u003c/var\u003e: the path of the admin cluster kubeconfig file\n\n- \u003cvar translate=\"no\"\u003eUSER_CLUSTER_CONFIG\u003c/var\u003e: the path of the user cluster configuration file\n\nVerify that the resizing succeeded:\n\n- If [advanced cluster](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/admin-cluster-configuration-file-latest#enable-advanced-cluster-field) isn't enabled:\n\n ```bash\n kubectl --kubeconfig USER_CLUSTER_KUBECONFIG get nodes\n\n kubectl --kubeconfig USER_CLUSTER_KUBECONFIG describe machinedeployments NODE_POOL_NAME | grep Replicas\n ```\n- If [advanced cluster](/kubernetes-engine/distributed-cloud/vmware/docs/how-to/admin-cluster-configuration-file-latest#enable-advanced-cluster-field) is enabled\n\n ```bash\n kubectl --kubeconfig USER_CLUSTER_KUBECONFIG get nodes\n\n kubectl --kubeconfig ADMIN_CLUSTER_KUBECONFIG describe nodepoolclaim -n USER_CLUSTER_NAMESPACE NODE_POOL_NAME | grep \"Node Count\"\n ```\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eADMIN_CLUSTER_KUBECONFIG\u003c/var\u003e: the path of the admin cluster\n kubeconfig file\n\n- \u003cvar translate=\"no\"\u003eUSER_CLUSTER_KUBECONFIG\u003c/var\u003e: the path of the user cluster\n kubeconfig file\n\n- \u003cvar translate=\"no\"\u003eNODE_POOL_NAME\u003c/var\u003e: the name of the node pool that you\n resized.\n\n- \u003cvar translate=\"no\"\u003eUSER_CLUSTER_NAMESPACE\u003c/var\u003e: the namespace of the user cluster that you\n resized.\n\nTroubleshooting\n\nSee\n[Troubleshooting cluster creation and upgrade](/kubernetes-engine/distributed-cloud/vmware/docs/troubleshooting/create-upgrade)."]]
