vSphere Deployment
Configurations
vSphere
Automation
client applications communicate with services on the
Platform
Services Controller
and
vCenter
Server
components of the virtual environment.
vCenter
Server
can be deployed with an embedded or external
Platform
Services Controller
.
vCenter
Server with an Embedded
Platform
Services Controller
vCenter
Server
with an Embedded
Platform
Services Controller
vCenter
Server
and
Platform
Services Controller
reside on the same virtual machine or physical server.
This deployment is most suitable for small environments such as development or
test beds.
You can use the
in two ways to establish secure, authenticated
sessions for your client application, by making requests to the Lookup Service
and the
vCenter Single
Sign-On
Service.
One way to use the
Platform
Services Controller
is to request an authentication token that can be used
to authenticate requests across services. The client connects to the Lookup
Service and retrieves the
vCenter Single
Sign-On
Service endpoint and the
vSphere
Automation
API endpoint. The client then uses the
vCenter Single
Sign-On
endpoint to authenticate with user credentials and
receive a token that securely verifies the client's credentials. This allows
the client to authenticate with a number of service endpoints without sending
user credentials over the network repeatedly.
Alternatively, if the client
connects directly to the
vSphere
Automation
API endpoint, there is no need for the client to
interact with the
vCenter Single
Sign-On
Service. The client sends user credentials to the
vSphere
Automation
API endpoint, which creates a session identifier that
persists across requests.
vCenter
Server
with Embedded
Platform
Services Controller
vCenter
Server with an External
Platform
Services Controller
vCenter
Server
with an External
Platform
Services Controller
In the case of an external
Platform
Services Controller
, the
vCenter
Server
and the
Platform
Services Controller
are deployed on separate virtual machines or physical
servers. The
Platform
Services Controller
can be shared across several
vCenter
Server
instances. For larger deployments or to provide better availability, more than
one
Platform
Services Controller
can be deployed. When configured as replication
partners within a single
vCenter Single
Sign-On
domain,
Platform
Services Controller
instances replicate all user and system data within
the cluster.
A client application functions
in a similar way as in a
Platform
Services Controller
with embedded
vCenter
Server
deployment. The only difference is that the client application can access
services on multiple
vCenter
Server
instances, or services only on a particular
vCenter
Server
instance.
vCenter
Server
with External
Platform
Services Controller
