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Chapter 4. Configuring Red Hat OpenStack Platform director for Service Telemetry Framework

To collect metrics, events, or both, and to send them to the Service Telemetry Framework (STF) storage domain, you must configure the Red Hat OpenStack Platform (RHOSP) overcloud to enable data collection and transport.

STF can support both single and multiple clouds. The default configuration in RHOSP and STF set up for a single cloud installation.

For a single RHOSP overcloud deployment with default configuration, see Section 4.1, “Deploying Red Hat OpenStack Platform overcloud for Service Telemetry Framework using director”.
To plan your RHOSP installation and configuration STF for multiple clouds, see Section 4.3, “Configuring multiple clouds”.
As part of an RHOSP overcloud deployment, you might need to configure additional features in your environment:
- To disable the data collector services, see Section 4.2, “Disabling Red Hat OpenStack Platform services used with Service Telemetry Framework”.

4.1. Deploying Red Hat OpenStack Platform overcloud for Service Telemetry Framework using director

As part of the Red Hat OpenStack Platform (RHOSP) overcloud deployment using director, you must configure the data collectors and the data transport to Service Telemetry Framework (STF).

Procedure

Additional resources

For more information about deploying an OpenStack cloud using director, see Director Installation and Usage.
To collect data through AMQ Interconnect, see the amqp1 plug-in.

4.1.1. Getting CA certificate from Service Telemetry Framework for overcloud configuration

To connect your Red Hat OpenStack Platform (RHOSP) overcloud to Service Telemetry Framework (STF), retrieve the CA certificate of AMQ Interconnect that runs within STF and use the certificate in RHOSP configuration.

Procedure

View a list of available certificates in STF:
```
$ oc get secrets
```

Retrieve and note the content of the default-interconnect-selfsigned Secret:

$ oc get secret/default-interconnect-selfsigned -o jsonpath='{.data.ca\.crt}' | base64 -d

4.1.2. Retrieving the AMQ Interconnect route address

When you configure the Red Hat OpenStack Platform (RHOSP) overcloud for Service Telemetry Framework (STF), you must provide the AMQ Interconnect route address in the STF connection file.

Procedure

Log in to your Red Hat OpenShift Container Platform environment where STF is hosted.
Change to the service-telemetry project:
```
$ oc project service-telemetry
```

Retrieve the AMQ Interconnect route address:

$ oc get routes -ogo-template='{{ range .items }}{{printf "%s\n" .spec.host }}{{ end }}' | grep "\-5671"
default-interconnect-5671-service-telemetry.apps.infra.watch

4.1.3. Creating the base configuration for STF

To configure the base parameters to provide a compatible data collection and transport for Service Telemetry Framework (STF), you must create a file that defines the default data collection values.

Procedure

Log in to the undercloud host as the stack user.
Create a configuration file called enable-stf.yaml in the /home/stack directory.
Important
Setting EventPipelinePublishers and PipelinePublishers to empty lists results in no event or metric data passing to RHOSP telemetry components, such as Gnocchi or Panko. If you need to send data to additional pipelines, the Ceilometer polling interval of 30 seconds, that you specify in ExtraConfig, might overwhelm the RHOSP telemetry components. You must increase the interval to a larger value, such as 300, which results in less telemetry resolution in STF.

enable-stf.yaml

parameter_defaults:
    # only send to STF, not other publishers
    EventPipelinePublishers: []
    PipelinePublishers: []

    # manage the polling and pipeline configuration files for Ceilometer agents
    ManagePolling: true
    ManagePipeline: true

    # enable Ceilometer metrics and events
    CeilometerQdrPublishMetrics: true
    CeilometerQdrPublishEvents: true

    # enable collection of API status
    CollectdEnableSensubility: true
    CollectdSensubilityTransport: amqp1

    # enable collection of containerized service metrics
    CollectdEnableLibpodstats: true

    # set collectd overrides for higher telemetry resolution and extra plugins
    # to load
    CollectdConnectionType: amqp1
    CollectdAmqpInterval: 5
    CollectdDefaultPollingInterval: 5
    CollectdExtraPlugins:
    - vmem

    # set standard prefixes for where metrics and events are published to QDR
    MetricsQdrAddresses:
    - prefix: 'collectd'
      distribution: multicast
    - prefix: 'anycast/ceilometer'
      distribution: multicast

    ExtraConfig:
        ceilometer::agent::polling::polling_interval: 30
        ceilometer::agent::polling::polling_meters:
        - cpu
        - disk.*
        - ip.*
        - image.*
        - memory
        - memory.*
        - network.services.vpn.*
        - network.services.firewall.*
        - perf.*
        - port
        - port.*
        - switch
        - switch.*
        - storage.*
        - volume.*

        # to avoid filling the memory buffers if disconnected from the message bus
        # note: this may need an adjustment if there are many metrics to be sent.
        collectd::plugin::amqp1::send_queue_limit: 5000

        # receive extra information about virtual memory
        collectd::plugin::vmem::verbose: true

        # provide name and uuid in addition to hostname for better correlation
        # to ceilometer data
        collectd::plugin::virt::hostname_format: "name uuid hostname"

        # provide the human-friendly name of the virtual instance
        collectd::plugin::virt::plugin_instance_format: metadata

        # set memcached collectd plugin to report its metrics by hostname
        # rather than host IP, ensuring metrics in the dashboard remain uniform
        collectd::plugin::memcached::instances:
          local:
            host: "%{hiera('fqdn_canonical')}"
            port: 11211

4.1.4. Configuring the STF connection for the overcloud

To configure the Service Telemetry Framework (STF) connection, you must create a file that contains the connection configuration of the AMQ Interconnect for the overcloud to the STF deployment. Enable the collection of events and storage of the events in STF and deploy the overcloud. The default configuration is for a single cloud instance with the default message bus topics. For configuration of multiple cloud deployments, see Section 4.3, “Configuring multiple clouds”.

Prerequisites

Retrieve the CA certificate from the AMQ Interconnect deployed by STF. For more information, see Section 4.1.1, “Getting CA certificate from Service Telemetry Framework for overcloud configuration”.
Retrieve the AMQ Interconnect route address. For more information, see Section 4.1.2, “Retrieving the AMQ Interconnect route address”.

Procedure

Log in to the undercloud host as the stack user.
Create a configuration file called stf-connectors.yaml in the /home/stack directory.
In the stf-connectors.yaml file, configure the MetricsQdrConnectors address to connect the AMQ Interconnect on the overcloud to the STF deployment. You configure the topic addresses for Sensubility, Ceilometer, and collectd in this file to match the defaults in STF. For more information about customizing topics and cloud configuration, see Section 4.3, “Configuring multiple clouds”.
stf-connectors.yaml
```
resource_registry:
  OS::TripleO::Services::Collectd: /usr/share/openstack-tripleo-heat-templates/deployment/metrics/collectd-container-puppet.yaml

parameter_defaults:
    MetricsQdrConnectors:
        - host: default-interconnect-5671-service-telemetry.apps.infra.watch
          port: 443
          role: edge
          verifyHostname: false
          sslProfile: sslProfile

    MetricsQdrSSLProfiles:
        - name: sslProfile
          caCertFileContent: |
            -----BEGIN CERTIFICATE-----
            <snip>
            -----END CERTIFICATE-----

    CeilometerQdrEventsConfig:
        driver: amqp
        topic: cloud1-event

    CeilometerQdrMetricsConfig:
        driver: amqp
        topic: cloud1-metering

    CollectdAmqpInstances:
        cloud1-notify:
            notify: true
            format: JSON
            presettle: false
        cloud1-telemetry:
            format: JSON
            presettle: false

    CollectdSensubilityResultsChannel: sensubility/cloud1-telemetry
```
- The resource_registry configuration directly loads the collectd service because you do not include the collectd-write-qdr.yaml environment file for multiple cloud deployments.
- Replace the host parameter with the value that you retrieved in Section 4.1.2, “Retrieving the AMQ Interconnect route address”.
- Replace the caCertFileContent parameter with the contents retrieved in Section 4.1.1, “Getting CA certificate from Service Telemetry Framework for overcloud configuration”.
- Replace the host sub-parameter of MetricsQdrConnectors with the value that you retrieved in Section 4.1.2, “Retrieving the AMQ Interconnect route address”.
- Set topic value of CeilometerQdrEventsConfig to define the topic for Ceilometer events. The value is a unique topic idenifier for the cloud such as cloud1-event.
- Set topic value of CeilometerQdrMetricsConfig.topic to define the topic for Ceilometer metrics. The value is a unique topic identifier for the cloud such as cloud1-metering.
- Set CollectdAmqpInstances sub-paramter to define the topic for collectd events. The section name is a unique topic identifier for the cloud such as cloud1-notify.
- Set CollectdAmqpInstances sub-parameter to define the topic for collectd metrics. The section name is a unique topic identifier for the cloud such as cloud1-telemetry.
- Set CollectdSensubilityResultsChannel to define the topic for collectd-sensubility events. The value is a unique topic identifier for the cloud such as sensubility/cloud1-telemetry.

Note

When you define the topics for collectd and Ceilometer, the value you provide is transposed into the full topic that the Smart Gateway client uses to listen for messages.

Ceilometer topic values are transposed into the topic address anycast/ceilometer/<TOPIC>.sample and collectd topic values are transposed into the topic address collectd/<TOPIC>. The value for sensubility is the full topic path and has no transposition from topic value to topic address.

For an example of a cloud configuration in the ServiceTelemetry object referring to the full topic address, see the section called “The clouds parameter”.

4.1.5. Deploying the overcloud

Deploy or update the overcloud with the required environment files so that data is collected and transmitted to Service Telemetry Framework (STF).

Procedure

Log in to the undercloud host as the stack user.
Source the stackrc undercloud credentials file:
```
$ source ~/stackrc
```
Add your data collection and AMQ Interconnect environment files to the stack with your other environment files and deploy the overcloud:
```
(undercloud)$ openstack overcloud deploy --templates \
 -e [your environment files] \
 -e /usr/share/openstack-tripleo-heat-templates/environments/metrics/ceilometer-write-qdr.yaml \
 -e /usr/share/openstack-tripleo-heat-templates/environments/metrics/qdr-edge-only.yaml \
 -e /home/stack/enable-stf.yaml \
 -e /home/stack/stf-connectors.yaml
```
- Include the ceilometer-write-qdr.yaml file to ensure that Ceilometer telemetry and events are sent to STF.
- Include the qdr-edge-only.yaml file to ensure that the message bus is enabled and connected to STF message bus routers.
- Include the enable-stf.yaml environment file to ensure that the defaults are configured correctly.
- Include the stf-connectors.yaml environment file to define the connection to STF.

4.1.6. Validating client-side installation

To validate data collection from the Service Telemetry Framework (STF) storage domain, query the data sources for delivered data. To validate individual nodes in the Red Hat OpenStack Platform (RHOSP) deployment, use SSH to connect to the console.

Tip

Some telemetry data is available only when RHOSP has active workloads.

Procedure

Ensure that the metrics_qdr and collection agent containers are running on the node:

$ sudo podman container inspect --format '{{.State.Status}}' metrics_qdr collectd ceilometer_agent_notification ceilometer_agent_central
running
running
running
running

Note

Use this command on compute nodes:

$ sudo podman container inspect --format '{{.State.Status}}' metrics_qdr collectd ceilometer_agent_compute

Return the internal network address on which AMQ Interconnect is running, for example, 172.17.1.44 listening on port 5666:

$ sudo podman exec -it metrics_qdr cat /etc/qpid-dispatch/qdrouterd.conf

listener {
    host: 172.17.1.44
    port: 5666
    authenticatePeer: no
    saslMechanisms: ANONYMOUS
}

Return a list of connections to the local AMQ Interconnect:

$ sudo podman exec -it metrics_qdr qdstat --bus=172.17.1.44:5666 --connections

Connections
  id   host                                                                  container                                                                                                  role    dir  security                            authentication  tenant
  ============================================================================================================================================================================================================================================================================================
  1    default-interconnect-5671-service-telemetry.apps.infra.watch:443      default-interconnect-7458fd4d69-bgzfb                                                                      edge    out  TLSv1.2(DHE-RSA-AES256-GCM-SHA384)  anonymous-user
  12   172.17.1.44:60290                                                     openstack.org/om/container/controller-0/ceilometer-agent-notification/25/5c02cee550f143ec9ea030db5cccba14  normal  in   no-security                         no-auth
  16   172.17.1.44:36408                                                     metrics                                                                                                    normal  in   no-security                         anonymous-user
  899  172.17.1.44:39500                                                     10a2e99d-1b8a-4329-b48c-4335e5f75c84                                                                       normal  in   no-security                         no-auth

There are four connections:

Outbound connection to STF
Inbound connection from ceilometer
Inbound connection from collectd
Inbound connection from our qdstat client
The outbound STF connection is provided to the MetricsQdrConnectors host parameter and is the route for the STF storage domain. The other hosts are internal network addresses of the client connections to this AMQ Interconnect.

To ensure that messages are delivered, list the links, and view the _edge address in the deliv column for delivery of messages:

$ sudo podman exec -it metrics_qdr qdstat --bus=172.17.1.44:5666 --links
Router Links
  type      dir  conn id  id    peer  class   addr                  phs  cap  pri  undel  unsett  deliv    presett  psdrop  acc  rej  rel     mod  delay  rate
  ===========================================================================================================================================================
  endpoint  out  1        5           local   _edge                      250  0    0      0       2979926  0        0       0    0    2979926 0    0      0
  endpoint  in   1        6                                              250  0    0      0       0        0        0       0    0    0       0    0      0
  endpoint  in   1        7                                              250  0    0      0       0        0        0       0    0    0       0    0      0
  endpoint  out  1        8                                              250  0    0      0       0        0        0       0    0    0       0    0      0
  endpoint  in   1        9                                              250  0    0      0       0        0        0       0    0    0       0    0      0
  endpoint  out  1        10                                             250  0    0      0       911      911      0       0    0    0       0    911    0
  endpoint  in   1        11                                             250  0    0      0       0        911      0       0    0    0       0    0      0
  endpoint  out  12       32          local   temp.lSY6Mcicol4J2Kp       250  0    0      0       0        0        0       0    0    0       0    0      0
  endpoint  in   16       41                                             250  0    0      0       2979924  0        0       0    0    2979924 0    0      0
  endpoint  in   912      1834        mobile  $management           0    250  0    0      0       1        0        0       1    0    0       0    0      0
  endpoint  out  912      1835        local   temp.9Ok2resI9tmt+CT       250  0    0      0       0        0        0       0    0    0       0    0      0

To list the addresses from RHOSP nodes to STF, connect to Red Hat OpenShift Container Platform to retrieve the AMQ Interconnect pod name and list the connections. List the available AMQ Interconnect pods:
```
$ oc get pods -l application=default-interconnect

NAME                                    READY   STATUS    RESTARTS   AGE
default-interconnect-7458fd4d69-bgzfb   1/1     Running   0          6d21h
```

Connect to the pod and list the known connections. In this example, there are three edge connections from the RHOSP nodes with connection id 22, 23, and 24:

$ oc exec -it default-interconnect-7458fd4d69-bgzfb -- qdstat --connections

2020-04-21 18:25:47.243852 UTC
default-interconnect-7458fd4d69-bgzfb

Connections
  id  host               container                                                      role    dir  security                                authentication  tenant  last dlv      uptime
  ===============================================================================================================================================================================================
  5   10.129.0.110:48498  bridge-3f5                                                    edge    in   no-security                             anonymous-user          000:00:00:02  000:17:36:29
  6   10.129.0.111:43254  rcv[default-cloud1-ceil-meter-smartgateway-58f885c76d-xmxwn]  edge    in   no-security                             anonymous-user          000:00:00:02  000:17:36:20
  7   10.130.0.109:50518  rcv[default-cloud1-coll-event-smartgateway-58fbbd4485-rl9bd]  normal  in   no-security                             anonymous-user          -             000:17:36:11
  8   10.130.0.110:33802  rcv[default-cloud1-ceil-event-smartgateway-6cfb65478c-g5q82]  normal  in   no-security                             anonymous-user          000:01:26:18  000:17:36:05
  22  10.128.0.1:51948   Router.ceph-0.redhat.local                                     edge    in   TLSv1/SSLv3(DHE-RSA-AES256-GCM-SHA384)  anonymous-user          000:00:00:03  000:22:08:43
  23  10.128.0.1:51950   Router.compute-0.redhat.local                                  edge    in   TLSv1/SSLv3(DHE-RSA-AES256-GCM-SHA384)  anonymous-user          000:00:00:03  000:22:08:43
  24  10.128.0.1:52082   Router.controller-0.redhat.local                               edge    in   TLSv1/SSLv3(DHE-RSA-AES256-GCM-SHA384)  anonymous-user          000:00:00:00  000:22:08:34
  27  127.0.0.1:42202    c2f541c1-4c97-4b37-a189-a396c08fb079                           normal  in   no-security                             no-auth                 000:00:00:00  000:00:00:00

To view the number of messages delivered by the network, use each address with the oc exec command:

$ oc exec -it default-interconnect-7458fd4d69-bgzfb -- qdstat --address

2020-04-21 18:20:10.293258 UTC
default-interconnect-7458fd4d69-bgzfb

Router Addresses
  class   addr                                phs  distrib    pri  local  remote  in           out          thru  fallback
  ==========================================================================================================================
  mobile  anycast/ceilometer/event.sample     0    balanced   -    1      0       970          970          0     0
  mobile  anycast/ceilometer/metering.sample  0    balanced   -    1      0       2,344,833    2,344,833    0     0
  mobile  collectd/notify                     0    multicast  -    1      0       70           70           0     0
  mobile  collectd/telemetry                  0    multicast  -    1      0       216,128,890  216,128,890  0     0

4.2. Disabling Red Hat OpenStack Platform services used with Service Telemetry Framework

Disable the services used when deploying Red Hat OpenStack Platform (RHOSP) and connecting it to Service Telemetry Framework (STF). There is no removal of logs or generated configuration files as part of the disablement of the services.

Procedure

Log in to the undercloud host as the stack user.
Source the stackrc undercloud credentials file:
```
$ source ~/stackrc
```

Create the disable-stf.yaml environment file:

$ cat > ~/disable-stf.yaml <<EOF
---
resource_registry:
  OS::TripleO::Services::CeilometerAgentCentral: OS::Heat::None
  OS::TripleO::Services::CeilometerAgentNotification: OS::Heat::None
  OS::TripleO::Services::CeilometerAgentIpmi: OS::Heat::None
  OS::TripleO::Services::ComputeCeilometerAgent: OS::Heat::None
  OS::TripleO::Services::Redis: OS::Heat::None
  OS::TripleO::Services::Collectd: OS::Heat::None
  OS::TripleO::Services::MetricsQdr: OS::Heat::None
EOF

Remove the following files from your RHOSP director deployment:
- ceilometer-write-qdr.yaml
- qdr-edge-only.yaml
- enable-stf.yaml
- stf-connectors.yaml
Update the RHOSP overcloud. Ensure that you use the disable-stf.yaml file early in the list of environment files. By adding disable-stf.yaml early in the list, other environment files can override the configuration that would disable the service:
```
(undercloud)$ openstack overcloud deploy --templates \
-e /home/stack/disable-stf.yaml \
-e [your environment files]
```

4.3. Configuring multiple clouds

You can configure multiple Red Hat OpenStack Platform (RHOSP) clouds to target a single instance of Service Telemetry Framework (STF). When you configure multiple clouds, every cloud must send metrics and events on their own unique message bus topic. In the STF deployment, Smart Gateway instances listen on these topics to save information to the common data store. Data that is stored by the Smart Gateway in the data storage domain is filtered by using the metadata that each of Smart Gateways creates.

Figure 4.1. Two RHOSP clouds connect to STF

An example of two RHOSP clouds connecting to STF

To configure the RHOSP overcloud for a multiple cloud scenario, complete the following tasks:

Plan the AMQP address prefixes that you want to use for each cloud. For more information, see Section 4.3.1, “Planning AMQP address prefixes”.
Deploy metrics and events consumer Smart Gateways for each cloud to listen on the corresponding address prefixes. For more information, see Section 4.3.2, “Deploying Smart Gateways”.
Configure each cloud with a unique domain name. For more information, see Section 4.3.4, “Setting a unique cloud domain”.
Create the base configuration for STF. For more information, see Section 4.1.3, “Creating the base configuration for STF”.
Configure each cloud to send its metrics and events to STF on the correct address. For more information, see Section 4.3.5, “Creating the Red Hat OpenStack Platform environment file for multiple clouds”.

4.3.1. Planning AMQP address prefixes

By default, Red Hat OpenStack Platform (RHOSP) nodes receive data through two data collectors; collectd and Ceilometer. The collectd-sensubility plugin requires a unique address. These components send telemetry data or notifications to the respective AMQP addresses, for example, collectd/telemetry. STF Smart Gateways listen on those AMQP addresses for data. To support multiple clouds and to identify which cloud generated the monitoring data, configure each cloud to send data to a unique address. Add a cloud identifier prefix to the second part of the address. The following list shows some example addresses and identifiers:

collectd/cloud1-telemetry
collectd/cloud1-notify
sensubility/cloud1-telemetry
anycast/ceilometer/cloud1-metering.sample
anycast/ceilometer/cloud1-event.sample
collectd/cloud2-telemetry
collectd/cloud2-notify
sensubility/cloud2-telemetry
anycast/ceilometer/cloud2-metering.sample
anycast/ceilometer/cloud2-event.sample
collectd/us-east-1-telemetry
collectd/us-west-3-telemetry

4.3.2. Deploying Smart Gateways

You must deploy a Smart Gateway for each of the data collection types for each cloud; one for collectd metrics, one for collectd events, one for Ceilometer metrics, one for Ceilometer events, and one for collectd-sensubility metrics. Configure each of the Smart Gateways to listen on the AMQP address that you define for the corresponding cloud. To define Smart Gateways, configure the clouds parameter in the ServiceTelemetry manifest.

When you deploy STF for the first time, Smart Gateway manifests are created that define the initial Smart Gateways for a single cloud. When you deploy Smart Gateways for multiple cloud support, you deploy multiple Smart Gateways for each of the data collection types that handle the metrics and the events data for each cloud. The initial Smart Gateways are defined in cloud1 with the following subscription addresses:

collector	type	default subscription address
collectd	metrics	collectd/telemetry
collectd	events	collectd/notify
collectd-sensubility	metrics	sensubility/telemetry
Ceilometer	metrics	anycast/ceilometer/metering.sample
Ceilometer	events	anycast/ceilometer/event.sample

Prerequisites

You have determined your cloud naming scheme. For more information about determining your naming scheme, see Section 4.3.1, “Planning AMQP address prefixes”.
You have created your list of clouds objects. For more information about creating the content for the clouds parameter, see the section called “The clouds parameter”.

Procedure

Log in to Red Hat OpenShift Container Platform.
Change to the service-telemetry namespace:
```
$ oc project service-telemetry
```

Edit the default ServiceTelemetry object and add a clouds parameter with your configuration:

Warning

Long cloud names might exceed the maximum pod name of 63 characters. Ensure that the combination of the ServiceTelemetry name default and the clouds.name does not exceed 19 characters. Cloud names cannot contain any special characters, such as -. Limit cloud names to alphanumeric (a-z, 0-9).

Topic addresses have no character limitation and can be different from the clouds.name value.

$ oc edit stf default

apiVersion: infra.watch/v1beta1
kind: ServiceTelemetry
metadata:
  ...
spec:
  ...
  clouds:
  - name: cloud1
    events:
      collectors:
      - collectorType: collectd
        subscriptionAddress: collectd/cloud1-notify
      - collectorType: ceilometer
        subscriptionAddress: anycast/ceilometer/cloud1-event.sample
    metrics:
      collectors:
      - collectorType: collectd
        subscriptionAddress: collectd/cloud1-telemetry
      - collectorType: sensubility
        subscriptionAddress: sensubility/cloud1-telemetry
      - collectorType: ceilometer
        subscriptionAddress: anycast/ceilometer/cloud1-metering.sample
  - name: cloud2
    events:
      ...

Save the ServiceTelemetry object.

Verify that each Smart Gateway is running. This can take several minutes depending on the number of Smart Gateways:

$ oc get po -l app=smart-gateway
NAME                                                      READY   STATUS    RESTARTS   AGE
default-cloud1-ceil-event-smartgateway-6cfb65478c-g5q82   2/2     Running   0          13h
default-cloud1-ceil-meter-smartgateway-58f885c76d-xmxwn   2/2     Running   0          13h
default-cloud1-coll-event-smartgateway-58fbbd4485-rl9bd   2/2     Running   0          13h
default-cloud1-coll-meter-smartgateway-7c6fc495c4-jn728   2/2     Running   0          13h
default-cloud1-sens-meter-smartgateway-8h4tc445a2-mm683   2/2     Running   0          13h

4.3.3. Deleting the default Smart Gateways

After you configure Service Telemetry Framework (STF) for multiple clouds, you can delete the default Smart Gateways if they are no longer in use. The Service Telemetry Operator can remove SmartGateway objects that were created but are no longer listed in the ServiceTelemetry clouds list of objects. To enable the removal of SmartGateway objects that are not defined by the clouds parameter, you must set the cloudsRemoveOnMissing parameter to true in the ServiceTelemetry manifest.

Tip

If you do not want to deploy any Smart Gateways, define an empty clouds list by using the clouds: [] parameter.

Warning

The cloudsRemoveOnMissing parameter is disabled by default. If you enable the cloudsRemoveOnMissing parameter, you remove any manually-created SmartGateway objects in the current namespace without any possibility to restore.

Procedure

Define your clouds parameter with the list of cloud objects that you want the Service Telemetry Operator to manage. For more information, see the section called “The clouds parameter”.

Edit the ServiceTelemetry object and add the cloudsRemoveOnMissing parameter:

apiVersion: infra.watch/v1beta1
kind: ServiceTelemetry
metadata:
  ...
spec:
  ...
  cloudsRemoveOnMissing: true
  clouds:
    ...

Save the modifications.
Verify that the Operator deleted the Smart Gateways. This can take several minutes while the Operators reconcile the changes:
```
$ oc get smartgateways
```

4.3.4. Setting a unique cloud domain

To ensure that AMQ Interconnect router connections from Red Hat OpenStack Platform (RHOSP) to Service Telemetry Framework (STF) are unique and do not conflict, configure the CloudDomain parameter.

Warning

Ensure that you do not change host or domain names in an existing deployment. Host and domain name configuration is supported in new cloud deployments only.

Procedure

Create a new environment file, for example, hostnames.yaml.

Set the CloudDomain parameter in the environment file, as shown in the following example:

hostnames.yaml

parameter_defaults:
    CloudDomain: newyork-west-04
    CephStorageHostnameFormat: 'ceph-%index%'
    ObjectStorageHostnameFormat: 'swift-%index%'
    ComputeHostnameFormat: 'compute-%index%'

Add the new environment file to your deployment.

Additional resources

Section 4.3.5, “Creating the Red Hat OpenStack Platform environment file for multiple clouds”
Core Overcloud Parameters in the Overcloud Parameters guide

4.3.5. Creating the Red Hat OpenStack Platform environment file for multiple clouds

To label traffic according to the cloud of origin, you must create a configuration with cloud-specific instance names. Create an stf-connectors.yaml file and adjust the values of CeilometerQdrEventsConfig, CeilometerQdrMetricsConfig and CollectdAmqpInstances to match the AMQP address prefix scheme.

Note

If you enabled container health and API status monitoring, you must also modify the CollectdSensubilityResultsChannel parameter. For more information, see Section 5.9, “Red Hat OpenStack Platform API status and containerized services health”.

Prerequisites

You have retrieved the CA certificate from the AMQ Interconnect deployed by STF. For more information, see Section 4.1.1, “Getting CA certificate from Service Telemetry Framework for overcloud configuration”.
You have created your list of clouds objects. For more information about creating the content for the clouds parameter, see the clouds configuration parameter.
You have retrieved the AMQ Interconnect route address. For more information, see Section 4.1.2, “Retrieving the AMQ Interconnect route address”.
You have created the base configuration for STF. For more information, see Section 4.1.3, “Creating the base configuration for STF”.
You have created a unique domain name environment file. For more information, see Section 4.3.4, “Setting a unique cloud domain”.

Procedure

Log in to the undercloud host as the stack user.
Create a configuration file called stf-connectors.yaml in the /home/stack directory.
In the stf-connectors.yaml file, configure the MetricsQdrConnectors address to connect to the AMQ Interconnect on the overcloud deployment. Configure the CeilometerQdrEventsConfig, CeilometerQdrMetricsConfig, CollectdAmqpInstances, and CollectdSensubilityResultsChannel topic values to match the AMQP address that you want for this cloud deployment.
stf-connectors.yaml
```
resource_registry:
  OS::TripleO::Services::Collectd: /usr/share/openstack-tripleo-heat-templates/deployment/metrics/collectd-container-puppet.yaml

parameter_defaults:
    MetricsQdrConnectors:
        - host: default-interconnect-5671-service-telemetry.apps.infra.watch
          port: 443
          role: edge
          verifyHostname: false
          sslProfile: sslProfile

    MetricsQdrSSLProfiles:
        - name: sslProfile
          caCertFileContent: |
            -----BEGIN CERTIFICATE-----
            <snip>
            -----END CERTIFICATE-----

    CeilometerQdrEventsConfig:
        driver: amqp
        topic: cloud1-event

    CeilometerQdrMetricsConfig:
        driver: amqp
        topic: cloud1-metering

    CollectdAmqpInstances:
        cloud1-notify:
            notify: true
            format: JSON
            presettle: false
        cloud1-telemetry:
            format: JSON
            presettle: false

    CollectdSensubilityResultsChannel: sensubility/cloud1-telemetry
```
- The resource_registry configuration directly loads the collectd service because you do not include the collectd-write-qdr.yaml environment file for multiple cloud deployments.
- Replace the host parameter with the value that you retrieved in Section 4.1.2, “Retrieving the AMQ Interconnect route address”.
- Replace the caCertFileContent parameter with the contents retrieved in Section 4.1.1, “Getting CA certificate from Service Telemetry Framework for overcloud configuration”.
- Replace the host sub-parameter of MetricsQdrConnectors with the value that you retrieved in Section 4.1.2, “Retrieving the AMQ Interconnect route address”.
- Set topic value of CeilometerQdrEventsConfig to define the topic for Ceilometer events. The value is a unique topic idenifier for the cloud such as cloud1-event.
- Set topic value of CeilometerQdrMetricsConfig.topic to define the topic for Ceilometer metrics. The value is a unique topic identifier for the cloud such as cloud1-metering.
- Set CollectdAmqpInstances sub-paramter to define the topic for collectd events. The section name is a unique topic identifier for the cloud such as cloud1-notify.
- Set CollectdAmqpInstances sub-parameter to define the topic for collectd metrics. The section name is a unique topic identifier for the cloud such as cloud1-telemetry.
- Set CollectdSensubilityResultsChannel to define the topic for collectd-sensubility events. The value is a unique topic identifier for the cloud such as sensubility/cloud1-telemetry.
  Note
  When you define the topics for collectd and Ceilometer, the value you provide is transposed into the full topic that the Smart Gateway client uses to listen for messages.
  Ceilometer topic values are transposed into the topic address anycast/ceilometer/<TOPIC>.sample and collectd topic values are transposed into the topic address collectd/<TOPIC>. The value for sensubility is the full topic path and has no transposition from topic value to topic address.
  For an example of a cloud configuration in the ServiceTelemetry object referring to the full topic address, see the section called “The clouds parameter”.
Ensure that the naming convention in the stf-connectors.yaml file aligns with the spec.bridge.amqpUrl field in the Smart Gateway configuration. For example, configure the CeilometerQdrEventsConfig.topic field to a value of cloud1-event.
Log in to the undercloud host as the stack user.
Source the stackrc undercloud credentials file:
```
$ source stackrc
```
Include the stf-connectors.yaml file and unique domain name environment file hostnames.yaml in the openstack overcloud deployment command, with any other environment files relevant to your environment:
Warning
If you use the collectd-write-qdr.yaml file with a custom CollectdAmqpInstances parameter, data publishes to the custom and default topics. In a multiple cloud environment, the configuration of the resource_registry parameter in the stf-connectors.yaml file loads the collectd service.
```
(undercloud)$ openstack overcloud deploy --templates \
-e [your environment files] \
-e /usr/share/openstack-tripleo-heat-templates/environments/metrics/ceilometer-write-qdr.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/metrics/qdr-edge-only.yaml \
-e /home/stack/hostnames.yaml \
-e /home/stack/enable-stf.yaml \
-e /home/stack/stf-connectors.yaml
```
Deploy the Red Hat OpenStack Platform overcloud.

4.3.5.1. Ansible-based deployment of Service Telemetry Framework

Warning

The content for this feature is available in this release as a Documentation Preview, and therefore is not fully verified by Red Hat. Use it only for testing, and do not use in a production environment.

As of Red Hat OpenStack Platform 17.0, you can preview the use of Ansible instead of Puppet for deploying Service Telemetry Framework (STF) components. The use of Ansible has the following advantages:

Consolidation of configuration under a single service-specific THT variable (MetricsQdrVars and CollectdVars)
The ability to switch QDR modes from mesh-mode to edge-only and back
Fewer technologies used in the deployment stack, resulting in a simpler debug process

To use the Ansible-based deployment, substitute the word "ansible" in place of "puppet" in the resource_registry section of your stf-connectors.yaml file:

    OS::TripleO::Services::Collectd: /usr/share/openstack-tripleo-heat-templates/deployment/metrics/collectd-container-ansible.yaml
    OS::TripleO::Services::MetricsQdr: /usr/share/openstack-tripleo-heat-templates/deployment/metrics/qdr-container-ansible.yaml

To set the configuration, use the new service-specific THT variables, as shown in the following example:

parameter_defaults:
  MetricsQdrVars:
    tripleo_metrics_qdr_deployment_mode: edge-only
  CollectdVars:
    tripleo_collectd_amqp_host: stf.mycluster.example.com

The full list of supported configuration parameters can be found in the deployment files referenced above. https://github.com/openstack/tripleo-heat-templates/blob/stable/wallaby/deployment/metrics/qdr-container-ansible.yaml#L172

https://github.com/openstack/tripleo-heat-templates/blob/stable/wallaby/deployment/metrics/collectd-container-ansible.yaml#L307

Additional resources

For information about how to validate the deployment, see Section 4.1.6, “Validating client-side installation”.

4.3.6. Querying metrics data from multiple clouds

Data stored in Prometheus has a service label according to the Smart Gateway it was scraped from. You can use this label to query data from a specific cloud.

To query data from a specific cloud, use a Prometheus promql query that matches the associated service label; for example: collectd_uptime{service="default-cloud1-coll-meter"}.

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Chapter 4. Configuring Red Hat OpenStack Platform director for Service Telemetry Framework

4.1. Deploying Red Hat OpenStack Platform overcloud for Service Telemetry Framework using director

4.1.1. Getting CA certificate from Service Telemetry Framework for overcloud configuration

4.1.2. Retrieving the AMQ Interconnect route address

4.1.3. Creating the base configuration for STF

4.1.4. Configuring the STF connection for the overcloud

4.1.5. Deploying the overcloud

4.1.6. Validating client-side installation

4.2. Disabling Red Hat OpenStack Platform services used with Service Telemetry Framework

4.3. Configuring multiple clouds

4.3.1. Planning AMQP address prefixes

4.3.2. Deploying Smart Gateways

4.3.3. Deleting the default Smart Gateways

4.3.4. Setting a unique cloud domain

4.3.5. Creating the Red Hat OpenStack Platform environment file for multiple clouds

4.3.5.1. Ansible-based deployment of Service Telemetry Framework

4.3.6. Querying metrics data from multiple clouds

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Chapter 4. Configuring Red Hat OpenStack Platform director for Service Telemetry Framework

4.1. Deploying Red Hat OpenStack Platform overcloud for Service Telemetry Framework using director

4.1.1. Getting CA certificate from Service Telemetry Framework for overcloud configuration

4.1.2. Retrieving the AMQ Interconnect route address

4.1.3. Creating the base configuration for STF

4.1.4. Configuring the STF connection for the overcloud

4.1.5. Deploying the overcloud

4.1.6. Validating client-side installation

4.2. Disabling Red Hat OpenStack Platform services used with Service Telemetry Framework

4.3. Configuring multiple clouds

4.3.1. Planning AMQP address prefixes

4.3.2. Deploying Smart Gateways

4.3.3. Deleting the default Smart Gateways

4.3.4. Setting a unique cloud domain

4.3.5. Creating the Red Hat OpenStack Platform environment file for multiple clouds

4.3.5.1. Ansible-based deployment of Service Telemetry Framework

4.3.6. Querying metrics data from multiple clouds

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