Delegated driver not generating inventory file as expected

[jodybro]

Issue Type

• Bug report

Molecule and Ansible details

ansible --version && molecule --version

ansible 2.9.9
molecule 3.1.4

Molecule installation method (one of):

• source
• pip

pip

Ansible installation method (one of):

• source
• pip
• OS package

pip

Detail any linters or test runners used:

Desired Behavior

Instance created by the create.yml playbook should then have its details placed in the ephemeral inventory file (ip, id, port, user)

Actual Behaviour

Using the delegated driver for a bit of testing. Instance(s) are created in ec2.
Instance creation works fine and I end up with the details from the instance in my instance_conf (ip, instanceid, port, user).

But when molecule generates the ephemeral inventory file...none of these values are placed.

instance_config.yml

- {address: $ip, instance: $id, port: '22', user: $user}

molecule.yml

---
driver:
  name: delegated
  options:
    managed: True
platforms:
  - name: molecule-builder
    instance_type: t3.medium
    vpc_subnet_id: $subnet
    group_id: $sg
    groups:
      - molecule-builder
provisioner:
  name: ansible
  config_options:
    defaults:
      callback_whitelist: profile_tasks, timer, yaml
    ssh_connection:
      pipelining: true
      host_key_checking: no
verifier:
  name: ansible
lint: |
  set -e
  ansible-lint
scenario:
  name: default
  test_sequence:
    - destroy
    - create
    - converge

ansible_inventory.yml

---
all:
  hosts:
    molecule-builder: &id001 {}
  vars: &id002
    molecule_ephemeral_directory: '{{ lookup(''env'', ''MOLECULE_EPHEMERAL_DIRECTORY'')
      }}'
    molecule_file: '{{ lookup(''env'', ''MOLECULE_FILE'') }}'
    molecule_instance_config: '{{ lookup(''env'', ''MOLECULE_INSTANCE_CONFIG'') }}'
    molecule_no_log: '{{ lookup(''env'', ''MOLECULE_NO_LOG'') or not molecule_yml.provisioner.log|default(False)
      | bool }}'
    molecule_scenario_directory: '{{ lookup(''env'', ''MOLECULE_SCENARIO_DIRECTORY'')
      }}'
    molecule_yml: '{{ lookup(''file'', molecule_file) | from_yaml }}'
instance:
  hosts:
    molecule-builder: *id001
  vars: *id002
ungrouped:
  vars: {}

[jodybro]

Found #1292 and made some adjustments:

• Generating an ssh_config file per host (only 1 right now) and placing that in /tmp/ssh_config
• Passing in some options to my molecule.yml to try and use this config file

Right now I'm not seeing any of my changes take affect though.

Current molecule.yml

---
driver:
  name: delegated
  options:
    managed: True
    login_cmd_template: 'ssh {instance} -F /tmp/ssh_config'
    ansible_connection_options:
      connection: ssh
      ansible_ssh_common_args: -F /tmp/ssh_config
platforms:
  - name: molecule-builder
    instance_type: t3.medium
    vpc_subnet_id: $subnet
    group_id: $sg
    groups:
      - instance
provisioner:
  name: ansible
  config_options:
    defaults:
      callback_whitelist: profile_tasks, timer, yaml
    ssh_connection:
      pipelining: true
      host_key_checking: no
verifier:
  name: ansible
lint: |
  set -e
  ansible-lint
scenario:
  name: default
  test_sequence:
    - destroy
    - create
    - converge

Debugged the ansible ssh command and I see:

<molecule-builder> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 -o ControlPath=/Users/$user/.ansible/cp/%h-%p-%r molecule-builder '/bin/sh -c '"'"'/usr/bin/python && sleep 0'"'"''

So the common args dont seem to be getting passed into here.
Ive confirmed that this generated ssh_config works by doing

ssh ${molecule_builder_instance_ip} -F /tmp/ssh_config