Add provider class for Nautobot Secrets Functionality

README.md

@@ -82,7 +82,8 @@ The plugin behavior can be controlled with the following list of settings.
 | dispatcher_mapping | {"newos": "dispatcher.newos"} | None | A dictionary in which the key is a platform slug and the value is the import path of the dispatcher in string format |
 | username | ntc | N/A | The username when leveraging the `CredentialsSettingsVars` credential provider. |
 | password | password123 | N/A | The password when leveraging the `CredentialsSettingsVars` credential provider. |
-| secret | password123 | N/A | The secret password when leveraging the `CredentialsSettingsVars` credential provider, **placeholder only, not currently functioning**. |
+| secret | password123 | N/A | The secret password when leveraging the `CredentialsSettingsVars` credential provider.|
+| use_config_context | False | Whether to pull Secret Access Type from Config Context.|
 
 Finally, as root, restart Nautobot and the Nautobot worker.
 
@@ -176,11 +177,40 @@ class CustomNautobotORMCredentials(NautobotORMCredentials):
 
 You would have to set your `nornir_settings['credentials']` path to your custom class, such as `local_plugin.creds.CustomNautobotORMCredentials`.
 
-Out of the box, users have access to the `nautobot_plugin_nornir.plugins.credentials.settings_vars.CredentialsSettingsVars` and 
-`nautobot_plugin_nornir.plugins.credentials.env_vars.CredentialsEnvVars` class. This `CredentialsEnvVars` class simply leverages the 
-environment variables `NAPALM_USERNAME`, `NAPALM_PASSWORD`, and `DEVICE_SECRET`.
+Out of the box, users have access to three classes:
 
-> Note: DEVICE_SECRET does not currently work.
+- `nautobot_plugin_nornir.plugins.credentials.settings_vars.CredentialsSettingsVars`
+  - Leverages the username, password, secret that is specified in the plugin configuration.
+- `nautobot_plugin_nornir.plugins.credentials.env_vars.CredentialsEnvVars`
+  - Leverages the environment variables `NAPALM_USERNAME`, `NAPALM_PASSWORD`, and `DEVICE_SECRET`.
+- `nautobot_plugin_nornir.plugins.credentials.nautobot_secrets.CredentialsNautobotSecrets`
+  - Leverages the [Nautobot Secrets Group](https://nautobot.readthedocs.io/en/latest/core-functionality/secrets/#secrets-groups) core functionality.  **The default assumes Secrets Group contain secrets with "Access Type" of `Generic`** and expects these secrets to have "Secret Type" of `username`, `password`, and optionally `secret`. The "Access Type" is configurable via the plugin configuration parameter `use_config_context`, which if enabled changes the plugin functionality to pull `['nautobot_plugin_nornir']['secret_access_type']` from each devices config_context.
+
+  - Enabling the use of Config Context:
+  ```python
+  PLUGINS_CONFIG = {
+  "nautobot_plugin_nornir": {
+    "use_config_context": True,  # <--
+    "nornir_settings": {
+      "credentials": "nautobot_plugin_nornir.plugins.credentials.nautobot_secrets.CredentialsNautobotSecrets",
+      "runner": {
+        "plugin": "threaded",
+        "options": {
+            "num_workers": 20,
+        },
+      },
+    }
+  }
+  }
+  ```
+
+  - Config Context Example:
+  ```yaml
+  nautobot_plugin_nornir:
+    secret_access_type: SSH  # "GENERIC", "CONSOLE", "GNMI", "HTTP", "NETCONF", "REST", "RESTCONF", "SNMP", "SSH"
+  ```
+
+> For any of these classes, if a "secret" value is not defined, the "password" will also be used as the "secret" value.
 
 The environment variable must be accessible on the web service. This often means simply exporting the environment variable will not 
 suffice, but instead requiring users to update the `nautobot.service` file, however this will ultimately depend on your own setup. Environment

nautobot_plugin_nornir/plugins/credentials/nautobot_secrets.py

@@ -0,0 +1,61 @@
+"""Credentials class designed to work with Nautobot Secrets Functionality."""
+
+from nautobot.extras.choices import SecretsGroupAccessTypeChoices, SecretsGroupSecretTypeChoices
+from nautobot.extras.models.secrets import SecretsGroupAssociation
+from nautobot_plugin_nornir.constants import PLUGIN_CFG
+
+from .nautobot_orm import MixinNautobotORMCredentials
+
+
+def _get_secret_value(secret_type, device_obj):
+    """Get value for a secret based on secret type and device.
+
+    Args:
+        secret_type (SecretsGroupSecretTypeChoices): Type of secret to check.
+        device_obj (dcim.models.Device): Nautobot device object.
+
+    Returns:
+        str: Secret value.
+    """
+    if PLUGIN_CFG.get("use_config_context"):
+        access_type_str = device_obj.get_config_context()["nautobot_plugin_nornir"]["secret_access_type"].upper()
+        access_type = getattr(SecretsGroupAccessTypeChoices, f"TYPE_{access_type_str}")
+    else:
+        access_type = SecretsGroupAccessTypeChoices.TYPE_GENERIC
+    try:
+        value = device_obj.secrets_group.get_secret_value(
+            access_type=access_type,
+            secret_type=secret_type,
+            obj=device_obj,
+        )
+    except SecretsGroupAssociation.DoesNotExist:
+        value = None
+    return value
+
+
+class CredentialsNautobotSecrets(MixinNautobotORMCredentials):
+    """Credentials Class designed to work with Nautobot Secrets Functionality."""
+
+    def get_device_creds(self, device):
+        """Return the credentials for a given device.
+
+        Args:
+            device (dcim.models.Device): Nautobot device object
+
+        Return:
+            username (string):
+            password (string):
+            secret (string):
+        """
+        if device.secrets_group:
+            self.username = _get_secret_value(
+                secret_type=SecretsGroupSecretTypeChoices.TYPE_USERNAME, device_obj=device
+            )
+            self.password = _get_secret_value(
+                secret_type=SecretsGroupSecretTypeChoices.TYPE_PASSWORD, device_obj=device
+            )
+            self.secret = _get_secret_value(secret_type=SecretsGroupSecretTypeChoices.TYPE_SECRET, device_obj=device)
+            if not self.secret:
+                self.secret = self.password
+            return (self.username, self.password, self.secret)
+        return (None, None, None)