anchor.diff:  Hawkular Metrics is a multi-tenanted application. It is configured so that a
   project in {product-title} corresponds to a tenant in Hawkular Metrics.
   
  -As such, when accessing metrics for a project named *MyProject* you will need
  -to set the
  +As such, when accessing metrics for a project named *MyProject* you must set the
   link:http://www.hawkular.org/docs/rest/rest-metrics.html#_tenant_header[*Hawkular-Tenant*]
   header to *MyProject*.
   
   There is also a special tenant named *_system* which contains system level
  -metrics. This will require either a *cluster-reader* or *cluster-admin* level
  +metrics. This requires either a *cluster-reader* or *cluster-admin* level
   privileges to access.
   
   === Authorization
  
positive.code: for that project. For the *_system* tenant, the user requesting to read from
  this tenant must have *cluster-reader* permission.
  
  When accessing the Hawkular Metrics API, you will need to pass a bearer token in
  the *Authorization* header.
  
  ifdef::openshift-origin[]
  == Accessing Heapster Directly
  
negative.code: |Set to *true* to allow for xref:../install_config/persistent_storage/dynamically_provisioning_pvs.adoc#install-config-persistent-storage-dynamically-provisioning-pvs[dynamically provisioned storage].
  
  |`*REDEPLOY*`
  |If set to *true*, the deployer will try to delete all the existing components
  before trying to redeploy.
  
  |`*HAWKULAR_METRICS_HOSTNAME*`
  |External host name where clients can reach Hawkular Metrics.  This is the FQDN
  of the machine running the router pod.
  
  |`*MASTER_URL*`
  |Internal URL for the master, for authentication retrieval.
  
  |`*IMAGE_VERSION*`
  |Specify version for metrics components. For example, for
  *openshift/origin-metrics-deployer:latest*, set version to *latest*.
  
  |`*IMAGE_PREFIX*`
  |Specify prefix for metrics components. For example, for
  *openshift/origin-metrics-deployer:latest*, set prefix to *openshift/origin-*.
  
  |`*MODE*`
  a|Can be set to:
  
  - *preflight* to perform validation before a deployment.
  - *deploy* to perform an initial deployment.
  - *refresh* to delete and redeploy all components but to keep persisted data and routes.
  - *redeploy* to delete and redeploy everything (losing all data in the process).
  - *validate* to re-run validations after a deployment.
  
  |`*IGNORE_PREFLIGHT*`
  |Can be set to *true* to disable the preflight checks. This allows the deployer
  to continue even if the preflight check has failed.
  
  |`*USER_WRITE_ACCESS*`
  |Sets whether user accounts should be able to write metrics. Defaults to `false`
  so that only Heapster can write metrics and not individual users. It is
  recommended to disable user write access; if enabled, any user will be able to
  write metrics to the system which can affect performance and can cause Cassandra
  disk usage to unpredictably increase.
  
  |===
  
  The only required parameter is `*HAWKULAR_METRICS_HOSTNAME*`. This value is
  required when creating the deployer because it specifies the host name for the
  Hawkular Metrics xref:../architecture/core_concepts/routes.adoc#architecture-core-concepts-routes[route]. This
  value should correspond to a fully qualified domain name. You must know
  the value of `*HAWKULAR_METRICS_HOSTNAME*` when
  xref:../install_config/cluster_metrics.adoc#configuring-openshift-metrics[configuring the console] for metrics access.
  
  If you are using
  xref:../install_config/cluster_metrics.adoc#metrics-persistent-storage[persistent
  