tests: Add regression for add_host with host_key_checking

refs mitogen-hq#1066

Author: moreati

tests/ansible/ansible.cfg

@@ -1,9 +1,12 @@
 [defaults]
 any_errors_fatal = true
-# callback_whitelist naming will be deprecated in ansible-core >= 2.15.
-# callbacks_enabled naming was added in ansible-core 2.11
+# callbacks_enabled was added in Ansible 4 (ansible-core 2.11).
 # profile_tasks: Displays timing for each task and summary table of top N tasks
 # timer: Displays "Playbook run took 0 days, 0 hours, ..."
+callbacks_enabled =
+    profile_tasks,
+    timer
+# callback_whitelist was deprecated in Ansible >= 8 (ansible-core >= 2.15).
 callback_whitelist =
     profile_tasks,
     timer
@@ -37,7 +40,9 @@ no_target_syslog = True
 # Required by integration/ssh/timeouts.yml
 timeout = 30
 
-# On Travis, paramiko check fails due to host key checking enabled.
+# Ideally this would be true here and and overridden for hosts/groups. However
+# ansible_host_key_checking don't work on Vanilla Ansible 2.10, even for
+# static inventory hosts (ansible/ansible#49254, ansible/ansible#73708)
 host_key_checking = False
 
 [inventory]

tests/ansible/regression/all.yml

@@ -15,3 +15,4 @@
 - import_playbook: issue_655__wait_for_connection_error.yml
 - import_playbook: issue_776__load_plugins_called_twice.yml
 - import_playbook: issue_952__ask_become_pass.yml
+- import_playbook: issue_1066__add_host__host_key_checking.yml

tests/ansible/regression/issue_1066__add_host__host_key_checking.yml

@@ -0,0 +1,69 @@
+- name: regression/issue_1066__add_host__host_key_checking.yml
+  hosts: test-targets[0]
+  gather_facts: false
+  become: false
+  tasks:
+    - name: Add hosts dynamically
+      add_host:
+        name: "{{ item.name }}"
+        ansible_host_key_checking:        "{{ item.host_key_checking }}"
+        ansible_host:                     "{{ hostvars[inventory_hostname].ansible_host | default(omit) }}"
+        ansible_password:                 "{{ hostvars[inventory_hostname].ansible_password | default(omit) }}"
+        ansible_port:                     "{{ hostvars[inventory_hostname].ansible_port | default(omit) }}"
+        ansible_python_interpreter:       "{{ hostvars[inventory_hostname].ansible_python_interpreter | default(omit) }}"
+        ansible_user:                     "{{ hostvars[inventory_hostname].ansible_user | default(omit) }}"
+      loop:
+        - {name: issue-1066-host-hkc-false,   host_key_checking: false}
+        - {name: issue-1066-host-hkc-true,    host_key_checking: true}
+      delegate_to: localhost
+  tags:
+    - issue_1066
+
+- name: regression/issue_1066__add_host__host_key_checking.yml
+  hosts: issue-1066-host-hkc-false,issue-1066-host-hkc-true
+  gather_facts: false
+  become: false
+  serial: 1
+  tasks:
+    - meta: reset_connection
+
+    # The host key might be in ~/.ssh/known_hosts. If it's removed then no
+    # problem - test-targets hosts have host_key_checking=false.
+    - name: Remove existing host keys
+      known_hosts:
+        name: "{{ ansible_host }}"
+        state: absent
+      delegate_to: localhost
+
+    - name: Ping dynamically added hosts
+      ping:
+      ignore_errors: true
+      ignore_unreachable: true
+      register: issue_1066_ping
+
+    - debug:
+        var: issue_1066_ping
+
+    - name: Confirm dynamically added hosts are/are not reachable
+      vars:
+        expected:
+          # Host key checking explicitly disabled, therefore connection succeeds
+          issue-1066-host-hkc-false:
+            ansible_host_key_checking: false
+          # Host key checking explicitly enabled, therefore connection fails
+          issue-1066-host-hkc-true:
+            ansible_host_key_checking: true
+            unreachable: true
+      assert:
+        that:
+          - issue_1066_ping.unreachable is defined == expected[inventory_hostname].unreachable is defined
+          - issue_1066_ping.unreachable | default(42) == expected[inventory_hostname].unreachable | default(42)
+          - ansible_host_key_checking is defined
+          - ansible_host_key_checking == expected[inventory_hostname].ansible_host_key_checking
+      # ansible_host_key_checking don't work on Vanilla Ansible 2.10, even for
+      # static inventory hosts (ansible/ansible#49254, ansible/ansible#73708).
+      when:
+        - ansible_version.full is version('2.11', '>=', strict=True)
+          or is_mitogen
+  tags:
+    - issue_1066

tests/ansible/setup/report_controller.yml

@@ -1,5 +1,5 @@
 - name: Report controller parameters
-  hosts: localhost
+  hosts: test-targets[0]
   gather_facts: false
   tasks:
     - debug:
@@ -9,9 +9,11 @@
           - $(groups):                "{{ lookup('pipe', 'groups') }}"
           - $(pwd):                   "{{ lookup('pipe', 'pwd') }}"
           - $(whoami):                "{{ lookup('pipe', 'whoami') }}"
+          - ansible_inventory_sources:        "{{ ansible_inventory_sources | default('<unset>') }}"
           - ansible_run_tags:         "{{ ansible_run_tags | default('<unset>') }}"
           - ansible_playbook_python:  "{{ ansible_playbook_python | default('<unset>') }}"
           - ansible_skip_tags:        "{{ ansible_skip_tags | default('<unset>') }}"
           - ansible_version.full:     "{{ ansible_version.full | default('<unset>') }}"
           - is_mitogen:               "{{ is_mitogen | default('<unset>') }}"
           - playbook_dir:             "{{ playbook_dir | default('<unset>') }}"
+      delegate_to: localhost