Add support for boot_disk_type to google_dataproc_cluster (hashicorp#1855)

Author: rileykarson

docs/r/dataproc_cluster.html.markdown

@@ -38,6 +38,7 @@ resource "google_dataproc_cluster" "mycluster" {
             num_instances     = 1
             machine_type      = "n1-standard-1"
             disk_config {
+                boot_disk_type = "pd-ssd"
                 boot_disk_size_gb = 10
             }
         }
@@ -100,7 +101,7 @@ resource "google_dataproc_cluster" "mycluster" {
 
 - - -
 
-The **cluster_config** block supports:
+The `cluster_config` block supports:
 
 ```hcl
     cluster_config {
@@ -149,7 +150,7 @@ The **cluster_config** block supports:
 
 - - -
 
-The **cluster_config.gce_cluster_config** block supports:
+The `cluster_config.gce_cluster_config` block supports:
 
 ```hcl
     cluster_config {
@@ -203,14 +204,15 @@ The **cluster_config.gce_cluster_config** block supports:
    will be launched in.
 - - -
 
-The **cluster_config.master_config** block supports:
+The `cluster_config.master_config` block supports:
 
 ```hcl
     cluster_config {
         master_config {
             num_instances     = 1
             machine_type      = "n1-standard-1"
             disk_config {
+                boot_disk_type    = "pd-ssd"
                 boot_disk_size_gb = 10
                 num_local_ssds    = 1
             }
@@ -225,25 +227,31 @@ The **cluster_config.master_config** block supports:
    to create for the master. If not specified, GCP will default to a predetermined
    computed value (currently `n1-standard-4`).
 
-* `disk_config.boot_disk_size_gb` - (Optional, Computed) Size of the primary disk attached to each node, specified
+* `disk_config` (Optional) Disk Config
+
+	* `disk_config.boot_disk_type` - (Optional) The disk type of the primary disk attached to each node.
+	One of `"pd-ssd"` or `"pd-standard"`. Defaults to `"pd-standard"`.
+
+	* `disk_config.boot_disk_size_gb` - (Optional, Computed) Size of the primary disk attached to each node, specified
 	in GB. The primary disk contains the boot volume and system libraries, and the
 	smallest allowed disk size is 10GB. GCP will default to a predetermined
 	computed value if not set (currently 500GB). Note: If SSDs are not
 	attached, it also contains the HDFS data blocks and Hadoop working directories.
 
-* `disk_config.num_local_ssds` - (Optional) The amount of local SSD disks that will be
+	* `disk_config.num_local_ssds` - (Optional) The amount of local SSD disks that will be
 	attached to each master cluster node. Defaults to 0.
 
 - - -
 
-The **cluster_config.worker_config** block supports:
+The `cluster_config.worker_config` block supports:
 
 ```hcl
     cluster_config {
         worker_config {
             num_instances     = 3
             machine_type      = "n1-standard-1"
             disk_config {
+                boot_disk_type    = "pd-standard"
                 boot_disk_size_gb = 10
                 num_local_ssds    = 1
             }
@@ -265,6 +273,9 @@ The **cluster_config.worker_config** block supports:
 
 * `disk_config` (Optional) Disk Config
 
+    * `disk_config.boot_disk_type` - (Optional) The disk type of the primary disk attached to each node.
+	One of `"pd-ssd"` or `"pd-standard"`. Defaults to `"pd-standard"`.
+
     * `boot_disk_size_gb` - (Optional, Computed) Size of the primary disk attached to each worker node, specified
     in GB. The smallest allowed disk size is 10GB. GCP will default to a predetermined
     computed value if not set (currently 500GB). Note: If SSDs are not
@@ -275,7 +286,7 @@ The **cluster_config.worker_config** block supports:
 
 - - -
 
-The **cluster_config.preemptible_worker_config** block supports:
+The `cluster_config.preemptible_worker_config` block supports:
 
 ```hcl
     cluster_config {
@@ -303,7 +314,7 @@ will be set for you based on whatever was set for the `worker_config.machine_typ
 
 - - -
 
-The **cluster_config.software_config** block supports:
+The `cluster_config.software_config` block supports:
 
 ```hcl
     cluster_config {
@@ -330,7 +341,7 @@ The **cluster_config.software_config** block supports:
 
 - - -
 
-The **initialization_action** block (Optional) can be specified multiple times and supports:
+The `initialization_action` block (Optional) can be specified multiple times and supports:
 
 ```hcl
     cluster_config {
@@ -370,7 +381,6 @@ exported:
 * `cluster_config.software_config.properties` - A list of the properties used to set the daemon config files.
    This will include any values supplied by the user via `cluster_config.software_config.override_properties`
 
-<a id="timeouts"></a>
 ## Timeouts
 
 `google_dataproc_cluster` provides the following