nomad: Add client documentation for new fingerprint block.

content/nomad/v1.11.x/content/docs/configuration/client.mdx

@@ -227,6 +227,11 @@ client {
   `data-dir`][top_level_data_dir] suffixed with `common_plugins`, like
   `"/opt/nomad/common_plugins"`. This must be an absolute path.
 
+- `fingerprint` <code>([Fingerprint](#fingerprint-parameters): nil)</code> -
+  Provides configuration for fingerprinters used by the client and applies to
+  `"env_aws"`, `"env_azure"`, `"env_digitalocean"`, and `"env_gce"`
+  fingerprinters.
+
 - `host_volume` <code>([host_volume](#host_volume-block): nil)</code> - Exposes
   paths from the host as volumes that can be mounted into jobs.
 
@@ -520,6 +525,39 @@ refer to the [drivers documentation](/nomad/docs/job-declare/task-driver).
   the Nomad client's environment. By default a minimal environment is set including
   a `PATH` appropriate for the operating system.
 
+### `fingerprint` Parameters
+
+- `name` `(string: "")` - The name of the fingerprinter the configuration
+  applies to. This field is required and is part of the block label.
+  It supports `"env_aws"`, `"env_azure"`, `"env_digitalocean"`, and `"env_gce"`.
+
+- `retry_attempts` `(int: 0)` - Specifies the maximum number of retry attempts
+  to make before giving up. This field supports `-1` for unlimited retries, but
+  we do not recommend `-1` as this may cause the client to hang indefinitely on
+  startup if the fingerprinting source is unavailable. The default value of `0`
+  means no retries are made.
+
+- `retry_interval` `(string: "2s")` - Specifies the amount of time to wait
+  between retry attempts.
+
+- `exit_on_failure` `(bool: false)` - Specifies whether the client should exit
+  if fingerprinter fails to probe the envrionment endpoint service.
+
+  Nomad tries to identify if its running within the named environment on startup
+  by probing the environment's metadata endpoint. If the endpoint is
+  unreachable, Nomad by default skips fingerprinting for that environment
+  and continue startup. Setting this option to `true` causes Nomad to exit
+  in this situation. This is useful if you want to ensure that Nomad
+  only starts when it can successfully fingerprint the environment.
+
+```hcl
+fingerprinter "env_aws" {
+  retry_attempts  = "5"
+  retry_interval  = "1s"
+  exit_on_failure = true
+}
+```
+
 ### `template` Parameters
 
 - `function_denylist` `([]string: ["plugin", "executeTemplate",