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Deploying Tanzu Kubernetes “guest” cluster in vSphere with Tanzu
In this final installment of my “vSphere with Tanzu” posts, we are going to look at how to create our very first Tanzu Kubernetes (TKG) guest cluster. In previous posts, we have compared vSphere with Tanzu to VCF with Tanzu, and covered the prerequisites. Then we looked at the steps involved in deploying the HA-Proxy to provide a load balancer service to vSphere with Tanzu. In my most recent post, we looked at the steps involved in enabling workload management. Now that all of that is in…Read More
“A Digital Foundation for an Unpredictable World”
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The vSphere Clustering Service (vCLS) is a new capability that is introduced in the vSphere 7 Update 1 release. It’s first release provides the foundation to work towards creating a decoupled and distributed control plane for clustering services in vSphere.
Starting with vSphere 7.0 Update 1, vSphere Cluster Services (vCLS) is enabled by default and runs in all vSphere clusters. vCLS ensures that if vCenter Server becomes unavailable, cluster services remain available to maintain the resources and health of the workloads that run in the clusters. vCenter Server is still required in 7.0 update 1 to run DRS and HA.
vCLS uses agent virtual machines to maintain cluster services health. The vCLS agent virtual machines (vCLS VMs) are created when you add hosts to clusters. Up to three vCLS VMs are required to run in each vSphere cluster, distributed within a cluster. vCLS is also enabled on clusters which contain only one or two hosts. In these clusters the number of vCLS VMs is one and two.
How to? Retrieving Password for vCLS VMs
You can retrieve the password to login to the vCLS VMs. To ensure cluster services health, avoid accessing the vCLS VMs. This document is intended for explicit diagnostics on vCLS VMs.
- Use SSH to login to the vCenter Server Appliance.
- Run the following python script:
- Read the output for the password.
Read key from file
Connected to PSQL
PWD: (password displayed here)
Operations that might disrupt the healthy functioning of vCLS VMs:
- Changing the power state of the vCLS VMs
- Resource reconfiguration of the vCLS VMs such as changing CPU, Memory, Disk size, Disk placement
- VM encryption
- Triggering vMotion of the vCLS VMs
- Changing the BIOS
- Removing the vCLS VMs from the inventory
- Deleting the vCLS VMs from disk
- Enabling FT of vCLS VMs
- Cloning vCLS VMs
- Configuring PMem
- Moving vCLS VM to a different folder
- Renaming the vCLS VMs
- Renaming the vCLS folders
- Enabling DRS rules and overrides on vCLS VMs
- Enabling HA admission control policy on vCLS VMs
- Enabling HA overrides on vCLS VMs
- Moving vCLS VMs to a resource pool
- Recovering vCLS VMs from a snapshot
By default, the administrative password for the NSX Manager and NSX Edge appliances expires after 90 days. However, you can reset the expiration period after initial installation and configuration.
If the password expires, you will be unable to log in and manage components. Additionally, any task or API call that requires the administrative password to execute will fail. If your password expires, see Knowledge Base article 70691 NSX-T admin password expired.
- Use a secure program to connect to the NSX CLI console.
- Reset the expiration period. You can set the expiration period for between 1 and 9999 days.
nsx-mgrx> set user admin password-expiration <1 - 9999>
- (Optional) You can disable password expiry so the a password never expires. And check condigured expiration.
nsx-mgrx> clear user admin password-expiration nsx-mgrx> clear user root password-expiration nsx-mgrx> clear user audit password-expiration nsx-mgrx> get user admin password-expiration Password expiration not configured for this user
What’s New with VMware Cloud Foundation 4.1
The VMware Cloud Foundation product team is pleased to announce the upcoming release of VMware Cloud Foundation 4.1. This new release builds upon the industry momentum and traction from the March announcement of VMware Cloud Foundation 4.0 with Tanzu by introducing new features and functionality that deliver developer ready infrastructure, allowing customers to scale without The post What’s New with VMware Cloud Foundation 4.1 appeared first on Cloud Foundation.