RemoveDisk VirtualMachine. Rename VirtualMachine. ResetGuestInfo VirtualMachine. Resource VirtualMachine. Settings VirtualMachine. UpgradeVirtualHardware VirtualMachine. GuestControl VirtualMachine. PowerOff VirtualMachine. PowerOn VirtualMachine. Reset VirtualMachine. Create VirtualMachine. CreateFromExisting VirtualMachine. Delete VirtualMachine. Clone VirtualMachine. DeployTemplate VirtualMachine. MarkAsTemplate Folder. Create Folder. Additionally, the user requires some ReadOnly permissions, and some of the roles require permission to propogate the permissions to child objects.
These settings vary depending on whether or not you install the cluster into an existing folder. For more information about creating an account with only the required privileges, see vSphere Permissions and User Management Tasks in the vSphere documentation.
OpenShift Container Platform generally supports compute-only vMotion. Using Storage vMotion can cause issues and is not supported. If you are using vSphere volumes in your pods, migrating a VM across datastores either manually or through Storage vMotion causes invalid references within OpenShift Container Platform persistent volume PV objects.
These references prevent affected pods from starting up and can result in data loss. Similarly, OpenShift Container Platform does not support selective migration of VMDKs across datastores, using datastore clusters for VM provisioning or for dynamic or static provisioning of PVs, or using a datastore that is part of a datastore cluster for dynamic or static provisioning of PVs. When you deploy an OpenShift Container Platform cluster that uses installer-provisioned infrastructure, the installation program must be able to create several resources in your vCenter instance.
Although these resources use GB of storage, the bootstrap node is destroyed during the cluster installation process. A minimum of GB of storage is required to use a standard cluster. If you deploy more compute machines, the OpenShift Container Platform cluster will use more storage. Available resources vary between clusters. The number of possible clusters within a vCenter is limited primarily by available storage space and any limitations on the number of required resources.
Be sure to consider both limitations to the vCenter resources that the cluster creates and the resources that you require to deploy a cluster, such as IP addresses and networks. Additionally, you must create the following networking resources before you install the OpenShift Container Platform cluster:.
Installation is possible without an NTP server. However, asynchronous server clocks will cause errors, which NTP server prevents. You must provide these IP addresses to the installation program when you install the OpenShift Container Platform cluster.
This record must be resolvable by both clients external to the cluster and from all the nodes within the cluster. If you want to SSH in to your cluster nodes to perform installation debugging or disaster recovery, you must provide the SSH public key during the installation process.
Do not skip this procedure in production environments, where disaster recovery and debugging is required. You must use a local key, not one that you configured with platform-specific approaches such as AWS key pairs.
If you do not have an existing SSH key pair on your local machine to use for authentication onto your cluster nodes, create one. For example, on a computer that uses a Linux operating system, run the following command:. Instead, create a key that uses the rsa or ecdsa algorithm.
SSH agent management of the key is required for password-less SSH authentication onto your cluster nodes, or if you want to use the. If the ssh-agent process is not already running for your local user, start it as a background task:.
Before you install OpenShift Container Platform, download the installation file on a local computer. If you have a Red Hat account, log in with your credentials. If you do not, create an account. Navigate to the page for your installation type, download the installation program for your operating system, and place the file in the directory where you will store the installation configuration files.
The installation program creates several files on the computer that you use to install your cluster. You must keep the installation program and the files that the installation program creates after you finish installing the cluster.
Both files are required to delete the cluster. Deleting the files created by the installation program does not remove your cluster, even if the cluster failed during installation. To remove your cluster, complete the OpenShift Container Platform uninstallation procedures for your specific cloud provider. Extract the installation program. A static IP address must be set for vCenter. In this example we use the. Main components used in this vSphere installation and setup guide are:.
ESXi hosts and VMs are connected to the same network You can create separate networks for virtual machines. If you are going to deploy a high number of virtual machines, consider using separate VM networks. Your router must support VLANs in this case. Separate networks must be configured for vMotion and management when using VMware clustering a vMotion network and management network. First of all, you should deploy ESXi hosts.
ESXi is a hypervisor that can run virtual machines on real hardware by using hardware emulation virtual devices are emulated for a virtual machine. ESXi is the first type hypervisor. If you want to practice vSphere 7 deployment but you have not prepared servers yet, read the blog post about VMware 7 Home Lab to learn how to deploy ESXi hosts and vSphere 7 on VMware Workstation virtual machines for educational purposes.
Read the welcome message and hit Enter to continue. Select a Disk to Install or Upgrade. In this example we have one disk to install ESXi 7. Later you can attach more disks, initialize them and use as datastores to store VM files. Select a storage device and hit Enter.
Please select a keyboard layout. US Default is used in our case. We recommend that you use the same option. Confirm Install. Press F11 to start the installation process of ESXi 7. Installation Complete.
When you see this screen, it means that ESXi 7. Remove the installation medium and press Enter to reboot the machine. Once you have installed ESXi 7. Authentication required. Enter the root password that you have set during ESXi installation. Hit Enter to continue. Now you are in the System Customization menu. Select Configure Management Network and hit Enter. Select Set static IPv4 address and network configuration and hit a Spacebar. Select the deployment size in line with the number of hosts and virtual machines that will be managed, click Next.
Select the datastore where the appliance will be deployed, choose thin provisioning if required, and click Next again. Enter the network settings to be applied to the appliance, including IPv4, DNS, and network adapter settings, then click Next. Then click Next. Configure a password for the SSO administrator, and click Next. If you already have existing vCenter Servers in an SSO domain that you want to join, using Enhanced Linked Mode functionality up to 15 , enter the administrator credentials for the existing SSO domain.
Review the details on the summary page and click Finish. When the installer is complete click Close to close the wizard. Both vCenter and ESXi are armed with automatic 60 day evaluation periods. The following steps may also be useful post-installation of vCenter Server 7. Featured image by Jonas Svidras on Unsplash.
You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. Products Overview Features Pricing. Documentation OpenShift Container Platform 4. Installing a cluster on vSphere with user-provisioned infrastructure. Prerequisites Provision persistent storage for your cluster. Be sure to also review this site list if you are configuring a proxy.
Obtain the packages that are required to perform cluster updates. VMware vSphere infrastructure requirements You must install the OpenShift Container Platform cluster on a VMware vSphere version 6 or 7 instance that meets the requirements for the components that you use.
Machine requirements for a cluster with user-provisioned infrastructure For a cluster that contains user-provisioned infrastructure, you must deploy all of the required machines. One temporary bootstrap machine Three control plane, or master, machines At least two compute machines, which are also known as worker machines. All virtual machines must reside in the same datastore and in the same folder as the installer.
Minimum resource requirements Each cluster machine must meet the following minimum requirements:. Certificate signing requests management Because your cluster has limited access to automatic machine management when you use infrastructure that you provision, you must provide a mechanism for approving cluster certificate signing requests CSRs after installation. Creating the user-provisioned infrastructure Before you deploy an OpenShift Container Platform cluster that uses user-provisioned infrastructure, you must create the underlying infrastructure.
Host level services, including the node exporter on ports - Configure the following conditions: Layer 4 load balancing only. Do not configure session persistence for an API load balancer. Configure the following ports on both the front and back of the load balancers:. IN MX 10 smtp. For clusters using installer-provisioned infrastructure, only the DNS records must be added.
Generating an SSH private key and adding it to the agent If you want to perform installation debugging or disaster recovery on your cluster, you must provide an SSH key to both your ssh-agent and the installation program.
In a production environment, you require disaster recovery and debugging. Agent pid Obtaining the installation program Before you install OpenShift Container Platform, download the installation file on a local computer. Manually creating the installation configuration file For installations of OpenShift Container Platform that use user-provisioned infrastructure, you manually generate your installation configuration file.
You must name this configuration file install-config. Sample install-config. All DNS records must be sub-domains of this base and include the cluster name. To meet the requirements of the different data structures, the first line of the compute section must begin with a hyphen, - , and the first line of the controlPlane section must not. Although both sections currently define a single machine pool, it is possible that future versions of OpenShift Container Platform will support defining multiple compute pools during installation.
Only one control plane pool is used. By default, simultaneous multithreading is enabled to increase the performance of your machines' cores. You can disable it by setting the parameter value to Disabled. If you disable simultaneous multithreading in some cluster machines, you must disable it in all cluster machines. The URL scheme must be http. If you use an MITM transparent proxy network that does not require additional proxy configuration but requires additional CAs, you must not specify an httpProxy value.
If you use an MITM transparent proxy network that does not require additional proxy configuration but requires additional CAs, you must not specify an httpsProxy value. Preface a domain with. For example,. The installation program does not support the proxy readinessEndpoints field. Creating the Kubernetes manifest and Ignition config files Because you must modify some cluster definition files and manually start the cluster machines, you must generate the Kubernetes manifest and Ignition config files that the cluster needs to make its machines.
Because you create and manage these resources yourself, you do not have to initialize them. Save and exit the file. Extracting the infrastructure name The Ignition config files contain a unique cluster identifier that you can use to uniquely identify your cluster in VMware vSphere. Click the VMs and Templates view.
Right-click the name of your datacenter. On the Select a compute resource tab, click the name of your vSphere cluster.
On the Select storage tab, configure the storage options for your VM. Select the datastore that you specified in your install-config. For a bootstrap machine, specify the URL of the bootstrap Ignition config file that you hosted. Navigate to a virtual machine from the vCenter Server inventory. Optional: On the Select storage tab, customize the storage options.
From the Latency Sensitivity list, select High. Define the following parameter names and values: guestinfo. Disk partitioning In most cases, data partitions are originally created by installing RHCOS, rather than by installing another operating system.
SSH Public Key The root file system is automatically resized to fill all available space up to the specified offset. If no value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of RHCOS might overwrite the beginning of the data partition. Updating the bootloader using bootupd To update the bootloader by using bootupd , you must either install bootupd on RHCOS machines manually or provide a machine config with the enabled systemd unit.
Inspect the system status: bootupctl status. Component EFI Installed: grub2-efi-x If the system status is Adoptable , perform the adoption:.
Updated: grub2-efi-x Provide a machine config file with the enabled systemd unit, as shown in the following example: Example output. To check your PATH , open the command prompt and execute the following command:. To check your PATH , open a terminal and execute the following command:.
Creating the cluster To create the OpenShift Container Platform cluster, you wait for the bootstrap process to complete on the machines that you provisioned by using the Ignition config files that you generated with the installation program. INFO It is now safe to remove the bootstrap resources. Logging in to the cluster by using the CLI You can log in to your cluster as a default system user by exporting the cluster kubeconfig file. Approving the certificate signing requests for your machines When you add machines to a cluster, two pending certificate signing requests CSRs are generated for each machine that you added.
Some Operators might not become available until some CSRs are approved. Initial Operator configuration After the control plane initializes, you must immediately configure some Operators so that they all become available.
Image registry removed during installation On platforms that do not provide shareable object storage, the OpenShift Image Registry Operator bootstraps itself as Removed.
The Prometheus console provides an ImageRegistryRemoved alert, for example:. Image registry storage configuration The Image Registry Operator is not initially available for platforms that do not provide default storage. Configuring registry storage for VMware vSphere As a cluster administrator, following installation you must configure your registry to use storage.
When using shared storage, review your security settings to prevent outside access. Configuring storage for the image registry in non-production clusters You must configure storage for the Image Registry Operator. Configure this option for only non-production clusters. Error from server NotFound : configs. Configuring block registry storage for VMware vSphere To allow the image registry to use block storage types such as vSphere Virtual Machine Disk VMDK during upgrades as a cluster administrator, you can use the Recreate rollout strategy.
With ReadWriteOnce , the volume can be mounted with read and write permissions by a single node. Completing installation on user-provisioned infrastructure After you complete the Operator configuration, you can finish installing the cluster on infrastructure that you provide. INFO Waiting up to 30m0s for the cluster to initialize If the pod logs display, the Kubernetes API server can communicate with the cluster machines. Backing up VMware vSphere volumes OpenShift Container Platform provisions new volumes as independent persistent disks to freely attach and detach the volume on any node in the cluster.
Stop the application that is using the persistent volume. Clone the persistent volume. Restart the application. Create a backup of the cloned volume. Delete the cloned volume. Next steps Customize your cluster. Storage with in-tree drivers. Network reachability tests. The default ports that Kubernetes reserves. Kubernetes node port. Kubernetes API.
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