This topic describes how to use the Tanzu Kubernetes Grid installer interface to deploy a management cluster to a vSphere instance. The Tanzu Kubernetes Grid installer interface guides you through the deployment of the management cluster, and provides different configurations for you to select or reconfigure. If this is the first time that you are deploying a management cluster, it is recommended to use the installer interface.
Make sure that you have met the all of the requirements listed in Install the Tanzu Kubernetes Grid CLI and Deploy Management Clusters to vSphere. If you are deploying clusters in an internet-restricted environment, you must also perform the steps in Deploy Tanzu Kubernetes Grid to an Offline Environment.
tkg init command takes time to complete. While
tkg init is running, do not run additional invocations of
tkg init on the same bootstrap machine to deploy multiple management clusters, run
tkg set management-cluster to change context, or edit
On the machine on which you downloaded and installed the Tanzu Kubernetes Grid CLI, run the
tkg init command with the
tkg init --ui
tkg init command uses and modifies settings in a cluster configuration file, which defaults to
$HOME/.tkg/config.yaml. The command may overwrite values from previous invocations of
tkg init unless you specify a file with a different name or location by using the
--config option. For more information, see Management Clusters and
config.yaml in the Manage Your Management Clusters topic.
tkg init --ui --config /path/my-config.yaml
By default Tanzu Kubernetes Grid saves the
kubeconfig for all management clusters in the
$HOME/.kube-tkg/config.yaml file. If you want to keep the
kubeconfig file for a management cluster separate from the
kubeconfig file for other management clusters, for example so that you can share it, specify the
tkg init --ui --kubeconfig /path/my-kubeconfig.yaml
When you run the
tkg init --ui command, it validates that your system meets the prerequisites:
tkg initand on the hypervisor.
If the prerequisites are met,
tkg init --ui launches the Tanzu Kubernetes Grid installer interface.
tkg init --ui opens the installer interface locally, at http://127.0.0.1:8080 in your default browser. The Installer Interface Options section below explains how you can change where the installer interface runs, including running it on a different machine from the
Click the Deploy button for vSphere.
In the IaaS Provider section, enter the IP address or fully qualified domain name (FQDN) for the vCenter Server instance on which to deploy the management cluster.
Tanzu Kubernetes Grid does not support IPv6 addresses. This is because upstream Kubernetes only provides alpha support for IPv6. Always provide IPv4 addresses in the procedures in this topic.
Enter the vCenter Single Sign On username and password for a user account that has the required privileges for Tanzu Kubernetes Grid operation, and click Connect.
Tanzu Kubernetes Grid Service on vSphere 7
On vSphere 7, the Supervisor Cluster deployable with the vSphere with Tanzu option provides a better experience than a management cluster deployed by Tanzu Kubernetes Grid, and you can use the TKG CLI to connect to the Supervisor Cluster. For information, see Use the Tanzu Kubernetes Grid CLI with a vSphere with Tanzu Supervisor Cluster.
To reflect the recommendation for Tanzu Kubernetes Grid Service, the Tanzu Kubernetes Grid installer behaves as follows:
Select the datacenter in which to deploy the management cluster from the Datacenter drop-down menu.
Paste the contents of your SSH public key into the text box and click Next.
In the Management Cluster Settings section, select the Development or Production tile.
In either of the Development or Production tiles, use the Instance type drop-down menu to select from different combinations of CPU, RAM, and storage for the control plane node VM or VMs.
Choose the configuration for the control plane node VMs depending on the expected CPU, memory, and storage consumption of the workloads that it will run. For example, some workloads might require a large compute capacity but relatively little storage, while others might require a large amount of storage and less compute capacity. If you select an instance type in the Production tile, the instance type that you selected is automatically selected for the Worker Node Instance Type. If necessary, you can change this.
Optionally enter a name for your management cluster.
If you do not specify a name, Tanzu Kubernetes Grid automatically generates a unique name. If you do specify a name, that name must be compliant with DNS hostname requirements as outlined in RFC 952 and amended in RFC 1123.
Under Control Plane Endpoint, enter a static virtual IP address or FQDN for API requests to the management cluster.
Ensure that this IP address is not in your DHCP range, but is in the same subnet as the DHCP range. If you mapped an FQDN to the VIP address, you can specify the FQDN instead of the VIP address. For more information, see Load Balancers for vSphere.
Use the Worker Node Instance Type drop-down menu to select the VM instance type for the management cluster worker nodes.
Select the configuration for the worker nodes depending on the expected CPU, memory, and storage consumption of the workloads that the cluster will run.
Optionally, deselect the Machine Health Checks checkbox if you want to disable
MachineHealthCheck and click Next.
MachineHealthCheck provides node health monitoring and node auto-repair on the clusters that you deploy with this management cluster. You can enable or disable
MachineHealthCheck on clusters after deployment by using the CLI. For instructions, see Configure Machine Health Checks for Tanzu Kubernetes Clusters.
In the Metadata section, optionally provide descriptive information about this management cluster.
Any metadata that you specify here applies to the management cluster and to the Tanzu Kubernetes clusters that it manages, and can be accessed by using the cluster management tool of your choice.
release : beta,
environment : staging, or
environment : production. For more information, see Labels and Selectors in the Kubernetes documentation.
In the Resources section, select vSphere resources for the management cluster to use, and click Next.
If appropriate resources do not already exist in vSphere, without quitting the Tanzu Kubernetes Grid installer, go to vSphere to create them. Then click the refresh button so that the new resources can be selected.
In the Kubernetes Network Settings section, configure the networking for Kubernetes services and click Next.
100.96.0.0/11are unavailable, update the values under Cluster Service CIDR and Cluster Pod CIDR.
In the OS Image section, use the drop-down menu to select the OS image template to use for deploying Tanzu Kubernetes Grid VMs, and click Next.
The drop-down menu includes all of the OS image templates that are present in your vSphere instance that meet the criteria for use as Tanzu Kubernetes Grid base OS images. The OS image template must include the correct version of Kubernetes for this release of Tanzu Kubernetes Grid. If you have not already imported a suitable OS image template to vSphere, you can do so now without quitting the Tanzu Kubernetes Grid installer. After you import it, use the Refresh button to make it available in the drop-down menu.
In the CEIP Participation section, optionally deselect the check box to opt out of the VMware Customer Experience Improvement Program.
You can also opt in or out of the program after the deployment of the management cluster. For information about the CEIP, see Opt in or Out of the VMware CEIP and https://www.vmware.com/solutions/trustvmware/ceip.html.
Click Review Configuration to see the details of the management cluster that you have configured.
When you click Review Configuration, Tanzu Kubernetes Grid populates the cluster configuration file,
.tkg/config.yaml by default, with the settings that you specified in the interface. You can optionally copy the cluster configuration file without completing the deployment. You can copy the cluster configuration file to another bootstrap machine and deploy the management cluster from that machine. For example, you might do this so that you can deploy the management cluster from a bootstrap machine that does not have a Web browser.
(Optional) Under CLI Command Equivalent, click the Copy button to copy the CLI command for the configuration that you specified.
Copying the CLI command allows you to reuse the command at the command line to deploy management clusters with the configuration that you specified in the interface. This can be useful if you want to automate management cluster deployment.
(Optional) Click Edit Configuration to return to the installer wizard to modify your configuration.
Click Deploy Management Cluster.
Deployment of the management cluster can take several minutes. The first run of
tkg init takes longer than subsequent runs because it has to pull the required Docker images into the image store on your bootstrap machine. Subsequent runs do not require this step, so are faster. You can follow the progress of the deployment of the management cluster in the installer interface or in the terminal in which you ran
tkg init --ui. If the machine on which you run
tkg init shuts down or restarts before the local operations finish, the deployment will fail. If you inadvertently close the browser or browser tab in which the deployment is running before it finishes, the deployment continues in the terminal.
tkg init --ui opens the installer interface locally, at http://127.0.0.1:8080 in your default browser. You can use the
--bind options to control where the installer interface runs:
--browserspecifies the local browser to open the interface in.
--bindto run the interface on a different machine, as described below.
--bindspecifies the IP address and port to serve the interface from.
Warning: Serving the installer interface from a non-default IP address and port could expose the
tkg CLI to a potential security risk while the interface is running. VMware recommends passing in to the
--bind option an IP and port on a secure network.
Use cases for
--bindto serve the interface from a different local port.
tkgCLI and create management clusters on a remote machine, and run the installer interface locally or elsewhere:
tkg init --uiwith the following options and values:
--bind: an IP address and port for the remote machine
tkg init --ui --bind 192.168.1.87:5555 --browser none
kubectlto the management cluster, and how to create namespaces see Examine the Management Cluster Deployment.