Remove docker driver from core

molecule/command/create.py

@@ -24,6 +24,7 @@
 from molecule import logger
 from molecule.api import drivers
 from molecule.command import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 
@@ -109,7 +110,7 @@ def execute(self):
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in drivers()]),
-    help="Name of driver to use. (docker)",
+    help=f"Name of driver to use. ({DEFAULT_DRIVER})",
 )
 def create(ctx, scenario_name, driver_name):  # pragma: no cover
     """Use the provisioner to start the instances."""

molecule/command/destroy.py

@@ -26,6 +26,7 @@
 from molecule import logger, util
 from molecule.api import drivers
 from molecule.command import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 MOLECULE_PARALLEL = os.environ.get("MOLECULE_PARALLEL", False)
@@ -122,7 +123,7 @@ def execute(self):
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in drivers()]),
-    help="Name of driver to use. (docker)",
+    help=f"Name of driver to use. ({DEFAULT_DRIVER})",
 )
 @click.option(
     "--all/--no-all",

molecule/command/init/role.py

@@ -28,6 +28,7 @@
 from molecule import api, logger, util
 from molecule.command import base as command_base
 from molecule.command.init import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 
@@ -109,8 +110,8 @@ def execute(self):
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in api.drivers()]),
-    default="docker",
-    help="Name of driver to initialize. (docker)",
+    default=DEFAULT_DRIVER,
+    help=f"Name of driver to initialize. ({DEFAULT_DRIVER})",
 )
 @click.option(
     "--lint-name",

molecule/command/init/scenario.py

@@ -26,6 +26,7 @@
 from molecule import api, config, logger, util
 from molecule.command import base as command_base
 from molecule.command.init import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 
@@ -157,8 +158,8 @@ def _default_scenario_exists(ctx, param, value):  # pragma: no cover
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in api.drivers()]),
-    default="docker",
-    help="Name of driver to initialize. (docker)",
+    default=DEFAULT_DRIVER,
+    help=f"Name of driver to initialize. ({DEFAULT_DRIVER})",
 )
 @click.option(
     "--lint-name",

molecule/command/prepare.py

@@ -24,6 +24,7 @@
 from molecule import logger
 from molecule.api import drivers
 from molecule.command import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 
@@ -118,7 +119,7 @@ def execute(self):
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in drivers()]),
-    help="Name of driver to use. (docker)",
+    help=f"Name of driver to use. ({DEFAULT_DRIVER})",
 )
 @click.option(
     "--force/--no-force",

molecule/command/test.py

@@ -26,6 +26,7 @@
 from molecule import logger, util
 from molecule.api import drivers
 from molecule.command import base
+from molecule.config import DEFAULT_DRIVER
 
 LOG = logger.get_logger(__name__)
 MOLECULE_PARALLEL = os.environ.get("MOLECULE_PARALLEL", False)
@@ -108,7 +109,7 @@ def execute(self):
     "--driver-name",
     "-d",
     type=click.Choice([str(s) for s in drivers()]),
-    help="Name of driver to use. (docker)",
+    help=f"Name of driver to use. ({DEFAULT_DRIVER})",
 )
 @click.option(
     "--all/--no-all",

molecule/config.py

@@ -35,6 +35,7 @@
 MOLECULE_DIRECTORY = "molecule"
 MOLECULE_FILE = "molecule.yml"
 MOLECULE_KEEP_STRING = "MOLECULE_"
+DEFAULT_DRIVER = "delegated"
 
 
 # https://stackoverflow.com/questions/16017397/injecting-function-call-after-init-with-decorator  # noqa
@@ -338,7 +339,7 @@ def _get_defaults(self):
                 "env": {},
             },
             "driver": {
-                "name": "docker",
+                "name": "delegated",
                 "provider": {"name": None},
                 "options": {"managed": True},
                 "ssh_connection_options": [],

molecule/driver/delegated.py

@@ -185,27 +185,28 @@ def ansible_connection_options(self, instance_name):
                 conn_dict["ansible_user"] = d.get("user")
                 conn_dict["ansible_host"] = d.get("address")
                 conn_dict["ansible_port"] = d.get("port")
-                conn_dict["ansible_connection"] = d.get("connection", "smart")
-                if d.get("become_method"):
+                if d.get("ansible_connection", None):
+                    conn_dict["ansible_connection"] = d.get("connection", "smart")
+                if d.get("become_method", False):
                     conn_dict["ansible_become_method"] = d.get("become_method")
-                if d.get("become_pass"):
+                if d.get("become_pass", None):
                     conn_dict["ansible_become_pass"] = d.get("become_pass")
-                if d.get("identity_file"):
+                if d.get("identity_file", None):
                     conn_dict["ansible_private_key_file"] = d.get("identity_file")
                     conn_dict["ansible_ssh_common_args"] = " ".join(
                         self.ssh_connection_options
                     )
-                if d.get("password"):
+                if d.get("password", None):
                     conn_dict["ansible_password"] = d.get("password")
-                if d.get("winrm_transport"):
+                if d.get("winrm_transport", None):
                     conn_dict["ansible_winrm_transport"] = d.get("winrm_transport")
-                if d.get("winrm_cert_pem"):
+                if d.get("winrm_cert_pem", None):
                     conn_dict["ansible_winrm_cert_pem"] = d.get("winrm_cert_pem")
-                if d.get("winrm_cert_key_pem"):
+                if d.get("winrm_cert_key_pem", None):
                     conn_dict["ansible_winrm_cert_key_pem"] = d.get(
                         "winrm_cert_key_pem"
                     )
-                if d.get("winrm_server_cert_validation"):
+                if d.get("winrm_server_cert_validation", None):
                     conn_dict["ansible_winrm_server_cert_validation"] = d.get(
                         "winrm_server_cert_validation"
                     )
@@ -218,7 +219,7 @@ def ansible_connection_options(self, instance_name):
                 # Instance has yet to be provisioned , therefore the
                 # instance_config is not on disk.
                 return {}
-        return self.options["ansible_connection_options"]
+        return self.options.get("ansible_connection_options", {})
 
     def _created(self):
         if self.managed: