docs: add helm doc updates (#9122)

docs/reference/deploy/helm-config-reference.rst

@@ -251,4 +251,26 @@
    namespaces. Maps to the ``resource_pools`` section from the :ref:`master configuration
    <master-config-reference>`.
 
+-  ``additional_resource_managers``: This section includes additional resource managers for
+   launching jobs across multiple Kubernetes clusters. Maps to :ref:`additional_resource_managers
+   <master-config-additional-resource-managers>` in the master configuration. An example
+   configuration is provided in the ``values.yaml`` file.
+
+   -  ``resource_manager``: Describes the configuration settings for the resource manager. Maps to
+      :ref:`resource_manager <master-config-resource-manager>` in the master configuration.
+
+      -  ``kubeconfig_secret_name``: Specifies the name of the secret containing the kubeconfig for
+         the resource manager. This kubeconfig is used to connect to the Kubernetes cluster and
+         launch tasks. Note that some kubeconfigs may require additional adjustments or
+         modifications. For example some kubeconfigs reference file paths, which may need to be
+         bind-mounted into the container or have their data paths encoded into the kubeconfig. Other
+         kubeconfigs, like those for GKE, may require installing plugins into the Determined master
+         container and binding certain credential files. (*Required*)
+
+      -  ``kubeconfig_secret_value``: The name of the secret that contains the resource manager's
+         kubeconfig. (*Required*)
+
+   -  ``resource_pools``: The resource pool configuration. See :ref:`resource_pools
+      <cluster-resource-pools>` for available configuration options.
+
 .. include:: ../../_shared/note-dtrain-learn-more.txt

docs/reference/deploy/master-config-reference.rst

@@ -226,6 +226,8 @@ notebook instance is considered to be idle if it is not receiving any HTTP traff
 otherwise active (as defined by the ``notebook_idle_type`` option in the :ref:`task configuration
 <command-notebook-configuration>`). Defaults to ``null``, i.e. disabled.
 
+.. _master-config-resource-manager:
+
 **********************
  ``resource_manager``
 **********************
@@ -1187,6 +1189,8 @@ those partitions/queues.
    the HPC partition named ``defq_GPU`` with the ``gpu_type`` property set, and Slurm constraint
    associated with the feature ``XL675d`` used to identify the model type of the compute node.
 
+.. _master-config-additional-resource-managers:
+
 **********************************
  ``additional_resource_managers``
 **********************************

helm/charts/determined/values.yaml

@@ -351,3 +351,16 @@ resourcePools:
 
 ## Configure the initial user password for the cluster
 # initialUserPassword
+
+# additional_resource_managers:
+#   - resource_manager:
+#       type: kubernetes
+#       max_slots_per_pod: 1
+#       name: carolina-multirm-1
+#       namespace: default
+#       kubeconfig_secret_name: additionalrm
+#       kubeconfig_secret_value: config
+#       determined_master_ip: 10.11.12.13
+#       determined_master_port: 8080
+#     resource_pools:
+#       - pool_name: additional_pool