Create config.yaml in your home directory, for example, /home/templates/custom, and configure the MetricsQdrConnectors parameter to point to STF server side:

MetricsQdrConnectors:
    - host: qdr-normal-sa-telemetry.apps.remote.tld
      port: 443
      role: inter-router
      sslProfile: sslProfile
      verifyHostname: false
MetricsQdrSSLProfiles:
    - name: sslProfile

In the config.yaml file, list the plug-ins you want under CollectdExtraPlugins. You can also provide parameters in the ExtraConfig section. By default, collectd comes with the cpu, df, disk, hugepages, interface, load, memory, processes, tcpconns, unixsock, and uptime plug-ins. You can add additional plug-ins using the CollectdExtraPlugins parameter. You can also provide additional configuration information for the CollectdExtraPlugins using the ExtraConfig option as shown. For example, to enable the virt plug-in, and configure the connection string and the hostname format, use the following syntax:

parameter_defaults:
  CollectdExtraPlugins:
    - disk
    - df
    - virt

  ExtraConfig:
    collectd::plugin::virt::connection: "qemu:///system"
    collectd::plugin::virt::hostname_format: "hostname uuid"

To enable collectd-sensubility, add the following environment configuration to the config.yaml file:

parameter_defaults:
  CollectdEnableSensubility: true

  # Use this if there is restricted access for your checks by using the sudo command.
  # The rule will be created in /etc/sudoers.d for sensubility to enable it calling restricted commands via sensubility executor.
  CollectdSensubilityExecSudoRule: "collectd ALL = NOPASSWD: <some command or ALL for all commands>"

  # Connection URL to Sensu server side for reporting check results.
  CollectdSensubilityConnection: "amqp://sensu:sensu@<sensu server side IP>:5672//sensu"

  # Interval in seconds for sending keepalive messages to Sensu server side.
  CollectdSensubilityKeepaliveInterval: 20

  # Path to temporary directory where the check scripts are created.
  CollectdSensubilityTmpDir: /var/tmp/collectd-sensubility-checks

  # Path to shell used for executing check scripts.
  CollectdSensubilityShellPath: /usr/bin/sh

  # To improve check execution rate use this parameter and value to change the number of goroutines spawned for executing check  scripts.
  CollectdSensubilityWorkerCount: 2

  # JSON-formatted definition of standalone checks to be scheduled on client side. If you need to schedule checks
  # on overcloud nodes instead of Sensu server, use this parameter. Configuration is compatible with Sensu check definition.
  # For more information, see https://docs.sensu.io/sensu-core/1.7/reference/checks/#check-definition-specification
  # There are some configuration options which sensubility ignores such as: extension, publish, cron, stdin, hooks.
  CollectdSensubilityChecks:
    example:
      command: "ping -c1 -W1 8.8.8.8"
      interval: 30

  # The following parameters are used to modify standard, standalone checks for monitoring container health on overcloud nodes.
  # Do not modify these parameters.
  # CollectdEnableContainerHealthCheck: true
  # CollectdContainerHealthCheckCommand: <snip>
  # CollectdContainerHealthCheckInterval: 10
  # The Sensu server side event handler to use for events created by the container health check.
  # CollectdContainerHealthCheckHandlers:
  #   - handle-container-health-check
  # CollectdContainerHealthCheckOccurrences: 3
  # CollectdContainerHealthCheckRefresh: 90

Deploy the overcloud. Include config.yaml, collectd-write-qdr.yaml, and one of the qdr-*.yaml files in your overcloud deploy command. For example:

$ openstack overcloud deploy
-e  /home/templates/custom/config.yaml
-e tripleo-heat-templates/environments/metrics/collectd-write-qdr.yaml
-e tripleo-heat-templates/environments/metrics/qdr-form-controller-mesh.yaml