ipaautomountlocation: Allow execution of plugin in client host.

Update automountlocation README file and add tests for executing plugin
with `ipaapi_context` set to `client`.

A new test playbook can be found at:

    tests/automountlocation/test_automountlocation_client_context.yml

The new test file can be executed in a FreeIPA client host that is
not a server. In this case, it should be defined in the `ipaclients`
group, in the inventory file.

README-automountlocation.md

@@ -104,6 +104,7 @@ Variable | Description | Required
 -------- | ----------- | --------
 `ipaadmin_principal` | The admin principal is a string and defaults to `admin` | no
 `ipaadmin_password` | The admin password is a string and is required if there is no admin ticket available on the node | no
+`ipaapi_context` | The context in which the module will execute. Executing in a server context is preferred. If not provided context will be determined by the execution environment. Valid values are `server` and `client`. | no
 `name` \| `cn` \| `location` | List of one or more automountlocation names. | yes
 `state` | The state to ensure. It can be one of `present`, or `absent`, default: `present`. | no
 

tests/automount/test_automountlocation.yml

 ---
 - name: Test automountlocation
-  hosts: ipaserver
+  hosts: "{{ ipa_test_host | default('ipaserver') }}"
   become: true
   gather_facts: false
 
@@ -8,6 +8,7 @@
   - name: ensure automountlocation TestLocations are absent before testing
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name:
       - TestLocation_01
       - TestLocation_02
@@ -16,6 +17,7 @@
   - name: ensure empty automountlocation does nothing
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: []
       state: present
     register: result
@@ -24,6 +26,7 @@
   - name: ensure empty automountlocation does nothing on absent
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: []
       state: absent
     register: result
@@ -32,6 +35,7 @@
   - name: ensure automountlocation TestLocation is present
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: TestLocation_01
       state: present
     register: result
@@ -40,6 +44,7 @@
   - name: ensure automountlocation TestLocation is present again
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: TestLocation_01
       state: present
     register: result
@@ -48,6 +53,7 @@
   - name: ensure automountlocation TestLocation is absent
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: TestLocation_01
       state: absent
     register: result
@@ -56,6 +62,7 @@
   - name: ensure automountlocation TestLocation is absent again
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name: TestLocation_01
       state: absent
     register: result
@@ -64,6 +71,7 @@
   - name: ensure a list of automountlocations are present
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name:
       - TestLocation_01
       - TestLocation_02
@@ -74,6 +82,7 @@
   - name: ensure a list of automountlocations exist
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name:
       - TestLocation_01
       - TestLocation_02
@@ -84,6 +93,7 @@
   - name: ensure a list of automountlocations are absent
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name:
       - TestLocation_01
       - TestLocation_02
@@ -94,6 +104,7 @@
   - name: ensure multiple automountlocations are absent
     ipaautomountlocation:
       ipaadmin_password: SomeADMINpassword
+      ipaapi_context: "{{ ipa_context | default(omit) }}"
       name:
       - TestLocation_01
       - TestLocation_02

tests/automount/test_automountlocation_client_context.yml

+---
+- name: Test automountlocation
+  hosts: ipaclients, ipaserver
+  become: no
+  gather_facts: no
+
+  tasks:
+  - name: Include FreeIPA facts.
+    include_tasks: ../env_freeipa_facts.yml
+
+  # Test will only be executed if host is not a server.
+  - name: Execute with server context in the client.
+    ipaautomountlocation:
+      ipaadmin_password: SomeADMINpassword
+      ipaapi_context: server
+      name: ThisShouldNotWork
+    register: result
+    failed_when: not (result.failed and result.msg is regex("No module named '*ipaserver'*"))
+    when: ipa_host_is_client
+
+# Import basic module tests, and execute with ipa_context set to 'client'.
+# If ipaclients is set, it will be executed using the client, if not,
+# ipaserver will be used.
+#
+# With this setup, tests can be executed against an IPA client, against
+# an IPA server using "client" context, and ensure that tests are executed
+# in upstream CI.
+
+- name: Test automountlocation using client context, in client host.
+  import_playbook: test_automountlocation.yml
+  when: groups['ipaclients']
+  vars:
+    ipa_test_host: ipaclients
+
+- name: Test automountlocation using client context, in server host.
+  import_playbook: test_automountlocation.yml
+  when: groups['ipaclients'] is not defined or not groups['ipaclients']