use scoped var, pass it down the line

.drone.yml

@@ -8,8 +8,12 @@ steps:
       REMOTE_USER: molecule
       HCLOUD_TOKEN:
         from_secret: HCLOUD_TOKEN
+    volumes:
+      - name: docker_sock
+        path: /var/run/docker.sock
     commands:
-      - apt update && apt install -y pwgen
+      - apt update && apt install -y pwgen curl
+      - curl -fsSL https://get.docker.com | bash
       - mkdir -p /root/.ansible/roles && ln -sr . /root/.ansible/roles/autonomic.new-hetzner
       - export INSTANCE_UUID=$(pwgen 8 1)
       - pip install -r requirements.txt

molecule/default/converge.yml

@@ -2,16 +2,16 @@
 - name: Converge
   hosts: all
   vars:
-    - new_hetzner_server_name: autonomic.new-hetzner-molecule
-    - add_users_inventory_hostname: autonomic.new-hetzner-molecule
-    - new_hetzner_server_type: cx11
-    - new_hetzner_server_image: debian-10
-    - new_hetzner_delete_protection: false
-    - new_hetzner_rebuild_protection: false
-    - members: files/members.yml
+    new_hetzner_server_name: autonomic.new-hetzner-molecule
+    add_users_inventory_hostname: autonomic.new-hetzner-molecule
+    new_hetzner_server_type: cx11
+    new_hetzner_server_image: debian-10
+    new_hetzner_delete_protection: false
+    new_hetzner_rebuild_protection: false
+    new_hetzner_user_accounts: files/members.yml
   pre_tasks:
     - name: Include resource variables
-      include_vars: "{{ members }}"
+      include_vars: "{{ new_hetzner_user_accounts }}"
   tasks:
     - name: Run the role under test
       block:

molecule/default/files/members.yml

@@ -2,5 +2,5 @@
 members:
   - username: foobar
     email: barfoo
-    ssh_key: "ssh-rsa foo bar@nowhere.com"
+    ssh_key: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMniNzAzuI527bfk/EipqFILFayUCwYXDoZ3R7+QgYq6"
     uid: 1100

requirements.txt

@@ -1,5 +1,5 @@
 ansible-lint==6.0.0
 ansible==5.4.0
-molecule-docker=1.1.0
+molecule-docker==1.1.0
 molecule-hetznercloud==1.3.0
 molecule==3.6.1

tasks/main.yml

@@ -4,13 +4,13 @@
     that: "{{ item }} is defined"
     fail_msg: "You must define the '{{ item }}' variable"
   with_items:
-    - members
+    - new_hetzner_user_accounts
     - new_hetzner_server_image
     - new_hetzner_server_name
     - new_hetzner_server_type
 
 - name: Include resource variables
-  include_vars: "{{ members }}"
+  include_vars: "{{ new_hetzner_user_accounts }}"
   tags:
     - molecule-notest
 
@@ -66,7 +66,7 @@
 
 - name: Run the add-users role on the new instance
   vars:
-    members: "{{ members }}"
+    add_users_user_accounts: "{{ new_hetzner_user_accounts }}"
   delegate_to: root-new-instance
   import_role:
     name: autonomic.add-users
@@ -74,6 +74,8 @@
     - molecule-notest
 
 - name: Run the sshd role on the new instance
+  vars:
+    sshd_user_accounts: "{{ new_hetzner_user_accounts }}"
   delegate_to: root-new-instance
   import_role:
     name: autonomic.sshd