This section describes the Tungsten Fabric services and their distribution across the Mirantis OpenStack for Kubernetes (MOS) deployment.
The Tungsten Fabric services run mostly as DaemonSets in a separate
container for each service. The deployment and update processes are managed by
the Tungsten Fabric operator. However, Kubernetes manages the probe checks and
restart of broken containers.
The following tables describe the Tungsten Fabric services:
Configuration and control services in Tungsten Fabric controller containers
Tungsten Fabric plugin services on the OpenStack controller nodes
Service name |
Service description |
|---|---|
|
Exposes a REST-based interface for the Tungsten Fabric API. |
|
Collects data of the Tungsten Fabric configuration processes and sends
it to the Tungsten Fabric |
|
Communicates with the cluster gateways using BGP and with the vRouter agents using XMPP, as well as redistributes appropriate networking information. |
|
Collects the Tungsten Fabric controller process data and sends
this information to the Tungsten Fabric |
|
Manages physical networking devices using |
|
Using the |
|
The customized Berkeley Internet Name Domain (BIND) daemon of
Tungsten Fabric that manages DNS zones for the |
|
Listens to configuration changes performed by a user and generates corresponding system configuration objects. In multi-node deployments, it works in the active-backup mode. |
|
Listens to configuration changes of |
|
Consists of the |
Service name |
Service description |
|---|---|
|
Evaluates and manages the alarms rules. |
|
Provides a REST API to interact with the Cassandra analytics database. |
|
Collects all Tungsten Fabric analytics process data and sends
this information to the Tungsten Fabric |
|
Provisions the init model if needed. Collects data of the |
|
Collects and analyzes data from all Tungsten Fabric services. |
|
Handles the queries to access data from the Cassandra database. |
|
Receives the authorization and configuration of the physical routers
from the |
|
Reads the SNMP information from the physical router user-visible entities (UVEs), creates a neighbor list, and writes the neighbor information to the physical router UVEs. The Tungsten Fabric web UI uses the neighbor list to display the physical topology. |
Service name |
Service description |
|---|---|
|
Connects to the Tungsten Fabric controller container and the Tungsten Fabric DNS system using the Extensible Messaging and Presence Protocol (XMPP). |
|
Collects the supervisor |
Service name |
Service description |
|---|---|
|
|
|
The Kubernetes operator that enables the Cassandra clusters creation and management. |
|
Handles the messaging bus and generates alarms across the Tungsten Fabric analytics containers. |
|
The Kubernetes operator that enabels Kafka clusters creation and management. |
|
Stores the physical router UVE storage and serves as a messaging bus for event notifications. |
|
The Kubernetes operator that enables Redis clusters creation and management. |
|
Holds the active-backup status for the |
|
The Kubernetes operator that enables ZooKeeper clusters creation and management. |
|
Exchanges messages between API servers and original request senders. |
|
The Kubernetes operator that enables RabbitMQ clusters creation and management. |
Service name |
Service description |
|---|---|
|
The Neutron server that includes the Tungsten Fabric plugin. |
|
The Octavia API that includes the Tungsten Fabric Octavia driver. |