add kms_key_id to block device docs

website/data/format.yml

@@ -0,0 +1,8 @@
+required:
+    <config parameter>:
+        type: <type>
+        docs: <doc string>
+optional:
+    <config parameter>:
+        type: <type>
+        docs: <doc string>

website/source/docs/builders/amazon-chroot.html.md

@@ -170,6 +170,9 @@ each category, the available configuration keys are alphabetized.
 
     -   `encrypted` (boolean) - Indicates whether to encrypt the volume or not
 
+    -   `kms_key_id` (string) - The ARN for the KMS encryption key. When
+        specifying `kms_key_id`, `encrypted` needs to be set to `true`.
+
     -   `iops` (number) - The number of I/O operations per second (IOPS) that the
         volume supports. See the documentation on
         [IOPs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EbsBlockDevice.html)

website/source/docs/builders/amazon-ebs.html.md

@@ -87,6 +87,9 @@ builder.
 
     -   `encrypted` (boolean) - Indicates whether to encrypt the volume or not
 
+    -   `kms_key_id` (string) - The ARN for the KMS encryption key. When
+        specifying `kms_key_id`, `encrypted` needs to be set to `true`.
+
     -   `iops` (number) - The number of I/O operations per second (IOPS) that the
         volume supports. See the documentation on
         [IOPs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EbsBlockDevice.html)

website/source/docs/builders/amazon-ebssurrogate.html.md

@@ -80,6 +80,9 @@ builder.
 
     -   `encrypted` (boolean) - Indicates whether to encrypt the volume or not
 
+    -   `kms_key_id` (string) - The ARN for the KMS encryption key. When
+        specifying `kms_key_id`, `encrypted` needs to be set to `true`.
+
     -   `iops` (number) - The number of I/O operations per second (IOPS) that the
         volume supports. See the documentation on
         [IOPs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EbsBlockDevice.html)

website/source/docs/builders/amazon-instance.html.md

@@ -109,6 +109,9 @@ builder.
 
     -   `encrypted` (boolean) - Indicates whether to encrypt the volume or not
 
+    -   `kms_key_id` (string) - The ARN for the KMS encryption key. When
+        specifying `kms_key_id`, `encrypted` needs to be set to `true`.
+
     -   `iops` (number) - The number of I/O operations per second (IOPS) that the
         volume supports. See the documentation on
         [IOPs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EbsBlockDevice.html)