Upgrading VMware Cloud Foundation 5.2.x to VCF 9.1 – A Complete Step-by-Step Upgrade Journey

 Upgrading from VMware Cloud Foundation (VCF) 5.2.x to VCF 9.1 is not just a version upgrade. It is a major architectural transformation that introduces a new management model, new lifecycle services, centralized fleet operations, and a redesigned private cloud operational framework.

With VCF 9.1, VMware has introduced a modernized management architecture built around VCF Management Services, Fleet Lifecycle, unified operations, enhanced automation, and scalable lifecycle management capabilities. Organizations planning this transition should approach the upgrade carefully with proper planning, validation, and sequencing.

In this blog, I will walk through the complete upgrade flow from VCF 5.2.x to VCF 9.1 based on the official upgrade workflow, operational experience, and the latest VCF 9.1 architecture updates.

Understanding the Upgrade Journey

Before starting the upgrade, it is important to understand that this is a phased transition.

VCF 9.1 introduces several architectural changes:

• Introduction of VCF Management Services
• Replacement of Aria Suite Lifecycle functionality
• Fleet-based lifecycle management
• Unified management services runtime
• Enhanced lifecycle orchestration
• New operational framework for Automation and Operations
• Improved upgrade orchestration
• Centralized identity and policy management

If your environment is currently running anything earlier than VCF 5.2.x, you must first upgrade to VCF 5.2.x before proceeding to VCF 9.1.

What Changes in VCF 9.1?

One of the biggest changes introduced in VCF 9.1 is the separation of management services from traditional appliance-based architecture.

VCF 9.1 introduces:

• Shared Services Runtime
• Fleet Lifecycle Management
• Centralized Binary Management
• Unified Identity Services
• Modernized Operations Architecture
• Enhanced Automation Framework
• Real-Time Operational Insights
• Simplified Lifecycle Management

According to VMware’s latest VCF 9.1 announcements, VCF can now scale up to 5,000 ESXi hosts and support upgrades across 256 clusters simultaneously.

Pre-Upgrade Planning

Before beginning the upgrade process, perform a detailed assessment of the environment.

Validate the Following

Hardware Compatibility

Ensure all components are supported for VCF 9.1:

• ESXi hosts
• vSAN controllers
• NICs
• CPUs
• Storage controllers
• NSX Edge appliances

DNS and NTP Validation

Many VCF upgrade failures are related to:

• Improper forward DNS
• Missing reverse PTR entries
• Time synchronization issues

Ensure:

• All components resolve correctly
• Forward and reverse DNS records exist
• NTP is synchronized across all appliances

Backup Requirements

Take backups and snapshots of:

• SDDC Manager
• vCenter Server
• NSX Managers
• Aria Components
• External databases
• Automation appliances

Password and Certificate Validation

Validate:

• Certificate validity
• Expired passwords
• Locked service accounts
• SSH accessibility

Review Interoperability Matrix

Confirm all component versions are compatible with VCF 9.1Upgrade Sequence Overview

The VCF 5.2.x to 9.1 upgrade process follows a strict sequence.

The high-level workflow is:

1. Upgrade Aria Operations
2. Upgrade Protection Components
3. Upgrade Avi Load Balancer
4. Upgrade SDDC Manager
5. Deploy VCF Management Services
6. Upgrade Automation Components
7. Upgrade Network and Security Components
8. Upgrade vCenter
9. Upgrade ESXi Hosts
10. Upgrade Edge Clusters
11. Upgrade Kubernetes Supervisors
12. Upgrade VMware Tools and VM Compatibility

This sequence is critical and should not be modified.

Step 1 – Upgrade Aria Operations to VCF Operations 9.1

VCF Operations becomes a mandatory component in VCF 9.x architecture.

If Aria Operations already exists:

• Upgrade it to version 9.1
• Validate cluster health
• Verify collectors and cloud proxies

If Aria Suite Lifecycle is managing the environment:

• Upgrade through Lifecycle Manager
• Validate product binaries
• Ensure repository synchronization

During this phase:

• Lifecycle services begin transitioning toward the new VCF management architecture
• Legacy lifecycle appliances start getting phased out

VMware notes that VCF Management Services will replace much of the previous Aria Suite Lifecycle functionality.

Step 2 – Upgrade Protection and Recovery Components

If deployed, upgrade the following:

• vSphere Replication
• VMware Live Site Recovery
• vSAN Data Protection

These components are optional depending on deployment architecture.

Ensure replication health is clean before proceeding.

Step 3 – Upgrade VMware Avi Load Balancer

If NSX Advanced Load Balancer (Avi) is integrated:

• Upgrade controllers
• Upgrade SE groups
• Validate cloud connectors
• Validate certificates

Check:

• NSX-T integration
• VIP reachability
• DNS integration

Step 4 – Upgrade SDDC Manager to 9.1

This is one of the most important upgrade stages.

The process includes:

• Download upgrade bundles
• Run prechecks
• Resolve all blocking issues
• Execute SDDC Manager upgrade

The workflow remains similar to previous VCF releases, but VCF 9.1 introduces deeper integration with Fleet Lifecycle Management.

Important Validation Areas

Check Bundle Repository

Verify:

• Bundle availability
• Download integrity
• Repository synchronization

Run Upgrade Prechecks

Common failures include:

• DNS mismatch
• Password expiration
• Certificate issues
• NTP drift
• Resource shortages

Resolve every error before proceeding.

Step 5 – Deploy VCF Management Services

This is the major architectural transition point.

VCF 9.1 introduces VCF Management Services hosted on a shared services runtime.

The deployment includes:

• Lifecycle services
• Software depot
• Identity services
• Fleet management
• Runtime services
• Log management

During deployment:

• New runtime clusters are deployed
• Service VMs are created
• Licensing services are configured

According to VMware documentation, the services runtime acts as the common foundation for lifecycle management and automation services.

Step 6 – Identity Services Migration

Older VMware Identity Manager components are not directly upgraded.

Instead:

• Identity Broker 9.1 is deployed
• Authentication services migrate into the new architecture
• Existing Identity Manager may still remain temporarily for authentication dependencies

This is an important operational consideration during migration.

Step 7 – Upgrade Automation Components

Next, upgrade:

• Aria Automation → VCF Automation 9.1
• Aria Orchestrator → VCF Operations Orchestrator
• Aria Operations for Networks
• HCX
• Log Management services

VCF 9.1 introduces a more service-oriented automation architecture.

Key improvements include:

• Shared runtime integration
• Better lifecycle control
• Unified automation framework
• Improved scalability

Step 8 – Upgrade NSX Components

Once management services are stable:

• Upgrade NSX Manager cluster
• Validate cluster synchronization
• Check transport nodes
• Validate overlay connectivity

VCF 9.1 changes upgrade sequencing slightly.

The NSX Manager upgrade occurs earlier in the workflow compared to older releases.

Validation Checklist

• TEP connectivity
• BGP status
• Edge health
• Tunnel status
• Segment reachability

Step 9 – Upgrade vCenter Server

Next, upgrade vCenter Server.

The process includes:

• Snapshot creation
• Compatibility validation
• Lifecycle execution
• Service validation

Post-upgrade validation:

• Cluster health
• DRS status
• HA status
• vSAN health
• Storage policy validation

Step 10 – Upgrade ESXi Hosts

ESXi upgrades can now be performed with significantly higher parallelism in VCF 9.1.

VMware states that VCF 9.1 supports upgrades across up to 256 clusters simultaneously.

ESXi Upgrade Workflow

• Enter maintenance mode
• Validate vSAN evacuation
• Upgrade host image
• Reboot host
• Exit maintenance mode
• Validate cluster health

Step 11 – Upgrade NSX Edge Clusters

Once hosts are upgraded:

• Upgrade Edge appliances
• Validate Tier-0/Tier-1 routing
• Check BGP sessions
• Validate load balancer functionality

Finally:

• Complete NSX finalize upgrade task

Step 12 – Upgrade Kubernetes and Supervisor Services

If using Supervisor Clusters or VKS:

• Upgrade Supervisor clusters
• Validate namespaces
• Upgrade Tanzu Kubernetes clusters
• Validate CSI and CNI operations

VCF 9.1 includes enhanced VKS operational capabilities and improved cost visibility for Kubernetes workloads.

Step 13 – Upgrade VMware Tools and VM Compatibility

Final cleanup activities include:

• VMware Tools upgrade
• VM hardware compatibility upgrade
• vSAN on-disk format upgrade
• vSAN File Services upgrade

These should be planned carefully to avoid unnecessary guest downtime.

Common Upgrade Challenges

DNS Problems

The most common issue in VCF upgrades.

Ensure:

• Forward lookup works
• Reverse PTR records exist
• All FQDNs resolve correctly

Community discussions frequently highlight DNS issues as major blockers during upgrades.

Certificate Issues

Check for:

• Expired certificates
• Incorrect SAN entries
• Trust chain issues

Resource Constraints

VCF 9.1 introduces additional management services.

Ensure adequate:

• CPU
• Memory
• Storage
• IP pools

NSX Integration Problems

Validate:

• Manager connectivity
• Edge synchronization
• Host transport nodes
• Segment health

Best Practices for Production Upgrades

Build a Detailed Upgrade Plan

Document:

• Upgrade order
• Downtime windows
• Rollback procedures
• Validation checkpoints

Use a Lab Environment First

Always test:

• Upgrade workflow
• Prechecks
• DNS configuration
• Certificate validation
• Service migration

Validate After Every Stage

Do not rush through sequential upgrades.

Validate:

• Service health
• Cluster health
• Workload functionality
• NSX status
• vSAN health

before moving to the next phase.

The upgrade from VCF 5.2.x to VCF 9.1 is one of the most significant platform transformations in VMware Cloud Foundation history.

VCF 9.1 introduces:

• Modern lifecycle architecture
• Unified management services
• Improved scalability
• Enhanced automation
• Centralized operational visibility
• Better lifecycle orchestration
• Simplified private cloud operations

While the upgrade process is extensive, proper planning, validation, and sequencing make the transition manageable and predictable.

Organizations adopting VCF 9.1 gain access to a significantly modernized private cloud platform designed for both traditional VM workloads and modern Kubernetes-based applications.

For environments planning long-term private cloud modernization, VCF 9.1 becomes a foundational operational platform rather than simply another infrastructure upgrade.

Useful References

• Official VCF 9.1 Upgrade Documentation
• VCF 9.1 Release Notes
• VMware Cloud Foundation Blog

 

Deep Dive into VCF 9.1 Deployment Architecture, Platform Scope, and First Instance FQDN & IP Address Planning

One of the most important design considerations while deploying VMware Cloud Foundation is selecting the appropriate deployment model based on scalability, resiliency, and operational requirements.

VCF 9.1 introduces flexible deployment options that allow organizations to choose between a Simple Deployment Model and a High Availability (HA) Deployment Model. While both deployment models provide the core capabilities of VMware Cloud Foundation, the HA deployment adds additional clustered and replica nodes for critical services to ensure better availability and operational continuity.

The following table provides a detailed comparison of the deployment scope for each platform component across both deployment models.

VCF Installer Deployment Scope per Platform

Component Group	Component Node / Instance	VMware Cloud Foundation Simple	VMware Cloud Foundation High Availability
VMware vCenter	vCenter	Yes	Yes
VCF Operations	operations (primary node)	Yes	Yes
	operations (replica node)	No	Yes
	operations (data node)	No	Yes
	cloud proxy	Yes	Yes
	license server	Yes	Yes
VMware NSX	NSX Manager (node 1)	Yes	Yes
	NSX Manager (node 2)	No	Yes
	NSX Manager (node 3)	No	Yes
VCF Automation*	automation (node 1)	Yes	Yes
	automation (node 2)	No	Yes
	automation (node 3)	No	Yes
SDDC Manager	SDDC Manager	Yes	Yes
VCF Management Services	VCF services runtime	Yes	Yes
	Fleet lifecycle	Yes	Yes
	SDDC lifecycle	Yes	Yes
	Software depot	Yes	Yes
	Identity broker	Yes	Yes
	Salt RaaS	Yes	Yes
	Salt master	Yes	Yes
	Telemetry	Yes	Yes

---

Simple Deployment Model

The Simple deployment model is designed for:

• Smaller production environments
• Lab and test deployments
• Resource-constrained infrastructure
• Faster deployment with lower VM footprint

In this model, only the primary nodes for core services are deployed. This minimizes infrastructure consumption while still providing the complete VCF management experience.

High Availability Deployment Model

The High Availability (HA) deployment model is recommended for:

• Enterprise production environments
• Mission-critical workloads
• Large-scale cloud deployments
• Environments requiring resiliency and fault tolerance

The HA model deploys additional nodes for services such as:

• Operations
• NSX Managers
• VCF Automation
• Data and replica services

This architecture ensures service continuity even during node failures.

Why HA Deployment Matters

The HA deployment architecture significantly improves:

• Platform resiliency
• Operational uptime
• Management plane availability
• Lifecycle management continuity
• Automation service reliability

For example:

• Multiple VMware NSX Manager nodes provide clustered NSX management availability.
• Additional Operations nodes improve monitoring and analytics resiliency.
• Multiple Automation nodes enhance self-service portal and API availability.

With VMware Cloud Foundation, organizations now have greater flexibility in choosing a deployment architecture that aligns with their business and operational requirements.

The Simple deployment model offers a lightweight and faster deployment approach, while the High Availability model delivers enterprise-grade resiliency for production environments. Selecting the correct deployment model during the planning phase is critical for ensuring long-term scalability, availability, and operational success of the VCF platform.

First VCF Instance FQDNs and IP Address Requirements

During the planning and deployment phase of VMware Cloud Foundation, it is important to properly reserve Fully Qualified Domain Names (FQDNs) and IP addresses for all management components and infrastructure services.

The number of required FQDNs and IP addresses varies depending on whether you deploy the platform using the Simple Deployment Model or the High Availability (HA) Deployment Model.

The following table provides a detailed overview of the naming and IP addressing requirements for the first VCF instance deployment.

First VCF Instance FQDNs and IP Addresses

 

 

Component	Category	Simple Deployment FQDNs and IP Addresses	High Availability Deployment FQDNs and IP Addresses
vCenter	vCenter	1 FQDN	1 FQDN
NSX Manager	NSX Manager nodes	1 FQDN	3 FQDNs
	NSX Manager Cluster VIP	1 FQDN	1 FQDN
SDDC Manager	SDDC Manager	1 FQDN	1 FQDN
vSAN	vSAN Network	1 IP Address for each host	1 IP Address for each host
vMotion	vMotion Network	1 IP Address for each host	1 IP Address for each host
VCF Operations	Primary node	1 FQDN	1 FQDN
	Replica node	-	1 FQDN
	Data node	-	1 FQDN
	Load balancer (Optional)	-	1 FQDN
	Cloud Proxy	1 FQDN	1 FQDN
	License Server	1 FQDN	1 FQDN
VCF Automation	VCF Automation	1 FQDN	1 FQDN
	VCF services runtime	1 FQDN	1 FQDN
	VCF Automation nodes	5 IP Addresses	5 IP Addresses
VCF Management Services	Fleet components	1 FQDN	1 FQDN
	Instance components	1 FQDN	1 FQDN
	VCF services runtime	1 FQDN	1 FQDN
	VCF services runtime nodes	12 IP Addresses minimum 30 IP Addresses for Day-N expansion operations	12 IP Addresses minimum 30 IP Addresses for Day-N expansion operations
	Identity broker	1 FQDN	1 FQDN
	Log management*	1 FQDN 6 IP Addresses 2 IP Addresses for each additional replica	1 FQDN 6 IP Addresses 2 IP Addresses for each additional replica
	Real-time metrics*	6 IP Addresses	6 IP Addresses
VCF Operations for Networks	Platform node*	1 IP Address	1 IP Address
	Collector node*	1 IP Address	1 IP Address

* Component deployment is a Day-N operation

** Do not use capital letters in the FQDN.

DNS Planning

Proper DNS planning is mandatory before starting the deployment of VMware Cloud Foundation. Every component requiring an FQDN must have:

• Forward DNS resolution
• Reverse DNS resolution
• Reachable network connectivity
• Reserved static IP assignments

High Availability Requires Additional Resources

The HA deployment model requires:

• Additional FQDNs for clustered services
• More management IP addresses
• Additional load balancing endpoints
• Increased network planning

For example:

• VMware NSX requires three NSX Manager node FQDNs in HA mode.
• VCF Operations introduces replica and data nodes for resiliency.
• Additional IP pools are required for runtime services and future Day-N operations.

Day-N Expansion Readiness

VCF 9.1 reserves additional IP addresses for future scalability and lifecycle operations. This simplifies:

• Deploying additional services later
• Enabling optional capabilities
• Expanding automation and management services
• Future workload domain growth

Accurate DNS and IP address planning is one of the most critical prerequisites for a successful VMware Cloud Foundation deployment.

Organizations deploying the High Availability model should carefully size and reserve additional networking resources to support clustered infrastructure services, operational scalability, and Day-N expansion activities.

Top of Form

 

Bottom of Form

 

Understanding VKS Cluster Deployment Phases in VMware Cloud Foundation 9

Modern private cloud platforms are evolving rapidly, and Kubernetes has become a core requirement for running modern applications. With VMware Cloud Foundation (VCF) and VMware vSphere Kubernetes Service (VKS), deploying Kubernetes clusters is no longer just about creating virtual machines. The complete deployment workflow is highly automated and driven through multiple orchestration phases.

The deployment architecture shown in the image explains how a VKS cluster is created step-by-step, starting from topology generation all the way to worker node availability. Understanding these phases is very important for administrators because it helps in troubleshooting deployment issues, validating infrastructure readiness, and understanding how Kubernetes components interact with vSphere infrastructure.

VKS Cluster Deployment Overview

The deployment workflow is divided into four major phases:

1. Phase 1 – Topology Custom Resource Generation
2. Phase 2 – Infrastructure Provisioning
3. Phase 3 – Control Plane Deployment
• Phase 3a – Control Plane Bootstrap
• Phase 3b – Control Plane VM Provisioning
• Phase 3c – Node Bootstrap
4. Phase 4 – Worker Provisioning

Each phase performs a dedicated function in preparing and deploying the Kubernetes cluster.

Phase 1 – Topology Custom Resource Generation

This is the starting point of the entire deployment workflow.

In this phase, Kubernetes custom resources are generated to define the cluster topology and desired state. These resources are consumed later by Cluster API (CAPI) and vSphere infrastructure providers.

The major components involved are:

• Cluster
• Machine Deployment
• Machine Set
• Kubeadm Control Plane
• vSphere Cluster

Cluster Object

The Cluster object acts as the primary Kubernetes resource representing the Kubernetes cluster being deployed.

It defines:

• Cluster identity
• Networking configuration
• Kubernetes version
• Infrastructure references
• Control plane references

This object becomes the central orchestration point for all subsequent deployment tasks.

Machine Deployment

The Machine Deployment resource defines the desired worker node deployment configuration.

It controls:

• Number of worker nodes
• Worker node scaling
• Worker node upgrade strategy
• Rolling update behaviours

This works similarly to a Kubernetes Deployment object but is used for virtual machine lifecycle management.

Machine Set

The Machine Set resource is automatically generated from the Machine Deployment.

Responsibilities include:

• Creating worker node machines
• Maintaining desired node count
• Replacing failed worker nodes
• Ensuring node consistency

The Machine Set continuously monitors worker node availability.

Kubeadm Control Plane

The Kubeadm Control Plane (KCP) object defines the Kubernetes control plane configuration.

It includes:

• API server configuration
• etcd deployment settings
• Control plane node count
• Bootstrap specifications
• Kubernetes initialization parameters

KCP is responsible for ensuring the Kubernetes control plane remains healthy and highly available.

vSphere Cluster

The vSphere Cluster object maps Kubernetes cluster deployment requirements to the underlying vSphere infrastructure.

It provides:

• Datacenter references
• Datastore selection
• Cluster placement policies
• Network references
• Resource pool configuration

This creates the bridge between Kubernetes orchestration and vSphere infrastructure resources.

Phase 2 – Infrastructure Provisioning

Once the cluster topology is defined, infrastructure provisioning begins.

This phase prepares the required networking and VM infrastructure services before Kubernetes nodes are deployed.

Key components:

• SubnetSet
• VMService
• Infra Ready State

SubnetSet

The SubnetSet resource allocates networking resources required by Kubernetes nodes.

This includes:

• IP allocation
• Network attachment
• Pod network preparation
• Service network preparation

Subnet readiness is extremely important because Kubernetes nodes cannot initialize without proper networking.

VMService

The VMService provides virtual machine lifecycle services for Kubernetes nodes.

Responsibilities include:

• VM creation
• VM power operations
• Resource allocation
• Storage attachment
• VM metadata injection

VMService integrates directly with the Supervisor environment and vSphere infrastructure.

Infra Ready State

After networking and infrastructure services are successfully configured, the deployment reaches the Infra Ready state.

This indicates:

• Networking is operational
• Infrastructure services are reachable
• VM provisioning services are functional
• Deployment prerequisites are satisfied

Only after this validation does the deployment proceed to control plane provisioning.

Phase 3 – Control Plane Deployment

This is one of the most critical stages in VKS cluster deployment.

The Kubernetes control plane is responsible for cluster orchestration, API management, scheduling, and overall cluster health.

Phase 3 is divided into three sub-phases:

• Phase 3a – Control Plane Bootstrap
• Phase 3b – Control Plane VM Provisioning
• Phase 3c – Node Bootstrap

Phase 3a – Control Plane Bootstrap

This phase initializes the Kubernetes control plane configuration.

Key components:

• kubeadmConfig
• Machine CP
• Secret
• SubnetPort

kubeadmConfig

The kubeadmConfig resource contains bootstrap instructions used to initialize Kubernetes.

It defines:

• Kubernetes version
• Cluster initialization commands
• Certificates
• API server settings
• kubelet configuration

This configuration is later injected into the control plane VM.

Machine CP

The Machine CP object represents the control plane machine definition.

It defines:

• VM sizing
• Placement policies
• Bootstrap references
• Infrastructure references

This object acts as the orchestration layer for control plane VM creation.

Secret

The Secret resource stores sensitive deployment data.

Examples include:

• Kubernetes certificates
• Authentication tokens
• kubeconfig files
• Encryption data

Secrets are automatically consumed during bootstrap operations.

SubnetPort

The SubnetPort resource assigns networking interfaces and IP addresses to the control plane node.

This ensures:

• Control plane VM connectivity
• API server reachability
• Cluster communication

Phase 3b – Control Plane VM Provisioning

After bootstrap configuration is ready, the actual control plane VM is deployed.

Main components:

• vSphereMachine
• VirtualMachine

vSphereMachine

The vSphereMachine object defines the infrastructure-specific VM configuration.

It contains:

• VM template references
• Datastore selection
• CPU and memory allocation
• Network attachment
• Storage policies

This object interacts directly with vSphere APIs.

Virtual Machine

The Virtual Machine object represents the actual VM deployed in vSphere.

Once powered on:

• kubeadm bootstrap begins
• Kubernetes binaries initialize
• etcd starts
• API server comes online

At this stage, the Kubernetes control plane starts becoming operational.

Phase 3c – Node Bootstrap

This phase completes Kubernetes initialization.

The major operation here is:

CP Init

Control Plane Initialization performs:

• etcd cluster initialization
• Kubernetes API startup
• Controller Manager startup
• Scheduler startup
• Certificate generation
• Cluster token creation

Once completed:

• Kubernetes API becomes reachable
• Cluster management becomes available
• Worker node provisioning can begin

This is effectively the point where the Kubernetes cluster becomes alive.

 

Phase 4 – Worker Provisioning

After the control plane is operational, worker nodes are deployed.

Key components include:

• KubeadminConfig
• Machine Worker
• vSphereMachine
• VirtualMachine
• SubnetPort
• Available State

Machine Worker

The Machine Worker object defines worker node specifications.

It controls:

• Worker node sizing
• Scaling policies
• Bootstrap references
• Infrastructure references

Worker Node Bootstrap

Worker nodes receive bootstrap configuration from the control plane using kubeadm join operations.

This process includes:

• Fetching cluster certificates
• Registering with API server
• Installing kubelet
• Joining Kubernetes cluster

vSphereMachine and VirtualMachine

Just like control plane deployment, worker nodes are provisioned as virtual machines in vSphere.

These VMs are:

• Attached to Kubernetes networking
• Configured using bootstrap metadata
• Registered into the Kubernetes cluster

Available State

Once worker nodes successfully join the cluster, the deployment reaches the Available state.

This confirms:

• Control plane is healthy
• Worker nodes are operational
• Kubernetes services are functional
• Cluster is ready for workloads

Understanding the Complete Workflow

The complete deployment sequence can be summarized as:

1. Cluster topology definitions are generated
2. Infrastructure resources are prepared
3. Control plane configuration is initialized
4. Control plane VMs are deployed
5. Kubernetes API becomes operational
6. Worker nodes are provisioned
7. Worker nodes join the cluster
8. Cluster reaches available state

Why These Deployment Phases Matter

Understanding these phases is extremely useful for:

Troubleshooting

Administrators can identify exactly where deployment failures occur:

• Topology generation issues
• Infrastructure readiness problems
• VM provisioning failures
• Bootstrap failures
• Node join issues

Operational Visibility

Each phase provides visibility into:

• Infrastructure readiness
• Cluster initialization
• Networking dependencies
• VM lifecycle state

Better Design Planning

Understanding the workflow helps architects design:

• Scalable Kubernetes environments
• Reliable infrastructure layouts
• High availability configurations
• Efficient network planning

The VKS cluster deployment workflow inside VMware Cloud Foundation is designed with a layered and highly automated architecture. Instead of manually deploying Kubernetes components, VKS orchestrates infrastructure provisioning, control plane initialization, networking, VM deployment, and worker node onboarding through a structured deployment pipeline.

Each phase in the deployment process has a very specific responsibility, and together they create a reliable, scalable, and enterprise-ready Kubernetes platform on top of VMware infrastructure.

For administrators working with VMware Cloud Foundation and VKS, understanding these deployment phases is essential for successful implementation, troubleshooting, and lifecycle management of Kubernetes environments.