add support for HashiCorp signed SSH certificates

awx/main/credential_plugins/azure_kv.py

@@ -37,7 +37,7 @@ azure_keyvault_inputs = {
 }
 
 
-def azure_keyvault_backend(**kwargs):
+def azure_keyvault_backend(raw, **kwargs):
     url = kwargs['url']
 
     def auth_callback(server, resource, scope):

awx/main/credential_plugins/hashivault.py

@@ -6,22 +6,12 @@ from .plugin import CredentialPlugin
 from hvac import Client
 
 
-hashi_inputs = {
+base_inputs = {
     'fields': [{
         'id': 'url',
         'label': 'Server URL',
         'type': 'string',
         'help_text': 'The URL to the HashiCorp Vault',
-    }, {
-        'id': 'secret_path',
-        'label': 'Path to Secret',
-        'type': 'string',
-        'help_text': 'The path to the secret e.g., /some-engine/some-secret/',
-    }, {
-        'id': 'secret_field',
-        'label': 'Key Name',
-        'type': 'string',
-        'help_text': 'The name of the key to look up in the secret.',
     }, {
         'id': 'token',
         'label': 'Token',
@@ -29,31 +19,60 @@ hashi_inputs = {
         'secret': True,
         'help_text': 'The access token used to authenticate to the Vault server',
     }, {
-        'id': 'api_version',
-        'label': 'API Version',
-        'choices': ['v1', 'v2'],
-        'help_text': 'API v1 is for static key/value lookups.  API v2 is for versioned key/value lookups.',
-        'default': 'v1',
+        'id': 'secret_path',
+        'label': 'Path to Secret',
+        'type': 'string',
+        'help_text': 'The path to the secret e.g., /some-engine/some-secret/',
+    }],
+    'required': ['url', 'token', 'secret_path'],
+}
+
+hashi_kv_inputs = {
+    'fields': base_inputs['fields'] + [{
+        'id': 'secret_field',
+        'label': 'Key Name',
+        'type': 'string',
+        'help_text': 'The name of the key to look up in the secret.',
     }, {
         'id': 'secret_version',
         'label': 'Secret Version (v2 only)',
         'type': 'string',
         'help_text': 'Used to specify a specific secret version (if left empty, the latest version will be used).',
+    }, {
+        'id': 'api_version',
+        'label': 'API Version',
+        'choices': ['v1', 'v2'],
+        'help_text': 'API v1 is for static key/value lookups.  API v2 is for versioned key/value lookups.',
+        'default': 'v1',
     }],
-    'required': ['url', 'secret_path', 'secret_field', 'token', 'api_version'],
+    'required': base_inputs['required'] + ['secret_field', 'api_version']
+}
+
+hashi_ssh_inputs = {
+    'fields': base_inputs['fields'] + [{
+        'id': 'role',
+        'label': 'Role Name',
+        'type': 'string',
+        'help_text': 'The name of the role used to sign.'
+    }, {
+        'id': 'valid_principals',
+        'label': 'Valid Principals',
+        'type': 'string',
+        'help_text': 'Valid principals (either usernames or hostnames) that the certificate should be signed for.',
+    }],
+    'required': base_inputs['required'] + ['role']
 }
 
 
-def hashi_backend(**kwargs):
-    token = kwargs.get('token')
-    url = kwargs.get('url')
-    secret_path = kwargs.get('secret_path')
+def kv_backend(raw, **kwargs):
+    token = kwargs['token']
+    url = kwargs['url']
+    secret_path = kwargs['secret_path']
     secret_field = kwargs.get('secret_field', None)
-    verify = kwargs.get('verify', False)
 
     api_version = kwargs.get('api_version', None)
 
-    client = Client(url=url, token=token, verify=verify)
+    client = Client(url=url, token=token, verify=True)
     if api_version == 'v2':
         try:
             mount_point, *path = pathlib.Path(secret_path.lstrip(os.sep)).parts
@@ -90,8 +109,31 @@ def hashi_backend(**kwargs):
     return response['data']
 
 
-hashivault_plugin = CredentialPlugin(
+def ssh_backend(raw, **kwargs):
+    token = kwargs['token']
+    url = kwargs['url']
+
+    client = Client(url=url, token=token, verify=True)
+    json = {
+        'public_key': raw
+    }
+    if kwargs.get('valid_principals'):
+        json['valid_principals'] = kwargs['valid_principals']
+    resp = client._adapter.post(
+        '/v1/{}/sign/{}'.format(kwargs['secret_path'], kwargs['role']),
+        json=json,
+    )
+    return resp.json()['data']['signed_key']
+
+
+hashivault_kv_plugin = CredentialPlugin(
     'HashiCorp Vault Secret Lookup',
-    inputs=hashi_inputs,
-    backend=hashi_backend
+    inputs=hashi_kv_inputs,
+    backend=kv_backend
+)
+
+hashivault_ssh_plugin = CredentialPlugin(
+    'HashiCorp Vault Signed SSH',
+    inputs=hashi_ssh_inputs,
+    backend=ssh_backend
 )

awx/main/models/credential/__init__.py

@@ -808,6 +808,11 @@ ManagedCredentialType(
             'format': 'ssh_private_key',
             'secret': True,
             'multiline': True
+        }, {
+            'id': 'ssh_public_key_data',
+            'label': ugettext_noop('Signed SSH Certificate'),
+            'type': 'string',
+            'multiline': True,
         }, {
             'id': 'ssh_key_unlock',
             'label': ugettext_noop('Private Key Passphrase'),
@@ -1342,7 +1347,10 @@ class CredentialInputSource(PrimordialModel):
                 backend_kwargs[field_name] = decrypt_field(self.source_credential, field_name)
             else:
                 backend_kwargs[field_name] = value
-        return backend(**backend_kwargs)
+        return backend(
+            self.target_credential.inputs.get(self.input_field_name),
+            **backend_kwargs
+        )
 
     def get_absolute_url(self, request=None):
         view_name = 'api:credential_input_source_detail'

awx/main/tasks.py

@@ -772,7 +772,12 @@ class BaseTask(object):
             'credentials': {
                 <awx.main.models.Credential>: '/path/to/decrypted/data',
                 <awx.main.models.Credential>: '/path/to/decrypted/data',
-                <awx.main.models.Credential>: '/path/to/decrypted/data',
+                ...
+            },
+            'certificates': {
+                <awx.main.models.Credential>: /path/to/signed/ssh/certificate,
+                <awx.main.models.Credential>: /path/to/signed/ssh/certificate,
+                ...
             }
         }
         '''
@@ -787,7 +792,6 @@ class BaseTask(object):
                 # and we're running an earlier version (<6.5).
                 if 'OPENSSH PRIVATE KEY' in data and not openssh_keys_supported:
                     raise RuntimeError(OPENSSH_KEY_ERROR)
-            for credential, data in private_data.get('credentials', {}).items():
                 # OpenSSH formatted keys must have a trailing newline to be
                 # accepted by ssh-add.
                 if 'OPENSSH PRIVATE KEY' in data and not data.endswith('\n'):
@@ -813,6 +817,13 @@ class BaseTask(object):
                     f.close()
                     os.chmod(path, stat.S_IRUSR | stat.S_IWUSR)
                 private_data_files['credentials'][credential] = path
+            for credential, data in private_data.get('certificates', {}).items():
+                name = 'credential_%d-cert.pub' % credential.pk
+                path = os.path.join(kwargs['private_data_dir'], name)
+                with open(path, 'w') as f:
+                    f.write(data)
+                    f.close()
+                os.chmod(path, stat.S_IRUSR | stat.S_IWUSR)
         return private_data_files
 
     def build_passwords(self, instance, runtime_passwords):
@@ -1269,7 +1280,12 @@ class RunJob(BaseTask):
             'credentials': {
                 <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>,
                 <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>,
-                <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>
+                ...
+            },
+            'certificates': {
+                <awx.main.models.Credential>: <signed SSH certifacte data>,
+                <awx.main.models.Credential>: <signed SSH certifacte data>,
+                ...
             }
         }
         '''
@@ -1279,6 +1295,8 @@ class RunJob(BaseTask):
             # back (they will be written to a temporary file).
             if credential.has_input('ssh_key_data'):
                 private_data['credentials'][credential] = credential.get_input('ssh_key_data', default='')
+            if credential.has_input('ssh_public_key_data'):
+                private_data.setdefault('certificates', {})[credential] = credential.get_input('ssh_public_key_data', default='')
 
             if credential.kind == 'openstack':
                 openstack_auth = dict(auth_url=credential.get_input('host', default=''),
@@ -2187,7 +2205,12 @@ class RunAdHocCommand(BaseTask):
             'credentials': {
                 <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>,
                 <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>,
-                <awx.main.models.Credential>: <credential_decrypted_ssh_key_data>
+                ...
+            },
+            'certificates': {
+                <awx.main.models.Credential>: <signed SSH certifacte data>,
+                <awx.main.models.Credential>: <signed SSH certifacte data>,
+                ...
             }
         }
         '''
@@ -2197,6 +2220,8 @@ class RunAdHocCommand(BaseTask):
         private_data = {'credentials': {}}
         if creds and creds.has_input('ssh_key_data'):
             private_data['credentials'][creds] = creds.get_input('ssh_key_data', default='')
+        if creds and creds.has_input('ssh_public_key_data'):
+            private_data.setdefault('certificates', {})[creds] = creds.get_input('ssh_public_key_data', default='')
         return private_data
 
     def build_passwords(self, ad_hoc_command, runtime_passwords):

awx/main/tests/functional/test_credential.py

@@ -76,10 +76,12 @@ GLqbpJyX2r3p/Rmo6mLY71SqpA==
 def test_default_cred_types():
     assert sorted(CredentialType.defaults.keys()) == [
         'aws',
+        'azure_kv',
         'azure_rm',
         'cloudforms',
         'gce',
-        'hashivault',
+        'hashivault_kv',
+        'hashivault_ssh',
         'insights',
         'net',
         'openstack',

setup.py

@@ -115,7 +115,8 @@ setup(
             'awx-manage = awx:manage',
         ],
         'awx.credential_plugins': [
-            'hashivault = awx.main.credential_plugins.hashivault:hashivault_plugin',
+            'hashivault_kv = awx.main.credential_plugins.hashivault:hashivault_kv_plugin',
+            'hashivault_ssh = awx.main.credential_plugins.hashivault:hashivault_ssh_plugin',
             'azure_kv = awx.main.credential_plugins.azure_kv:azure_keyvault_plugin',
         ]
     },

tools/docker-compose/awx.egg-info/entry_points.txt

@@ -3,5 +3,6 @@ tower-manage = awx:manage
 awx-manage = awx:manage
 
 [awx.credential_plugins]
-hashivault = awx.main.credential_plugins.hashivault:hashivault_plugin
+hashivault_kv = awx.main.credential_plugins.hashivault:hashivault_kv_plugin
+hashivault_ssh = awx.main.credential_plugins.hashivault:hashivault_ssh_plugin
 azure_kv = awx.main.credential_plugins.azure_kv:azure_keyvault_plugin