Do not mount non-existing controller private key

Some set of tests, for example those in whitebox neutron tempest
plugin, requires a private key that allows them to connect to the
controller node.

This PR ensures that the private key is mounted only when it does
exist.

Fixes: https://issues.redhat.com/browse/OSPCIX-546

roles/test_operator/tasks/tempest-tests.yml

@@ -81,38 +81,47 @@
                       }}}, recursive=true)
           }}
 
-- name: Ensure a secret for the cifmw private key file exists
-  when:
-    - not cifmw_test_operator_dry_run | bool
-    - cifmw_test_operator_tempest_ssh_key_secret_name is not defined
-  kubernetes.core.k8s:
-    kubeconfig: "{{ cifmw_openshift_kubeconfig }}"
-    api_key: "{{ cifmw_openshift_token | default(omit) }}"
-    context: "{{ cifmw_openshift_context | default(omit) }}"
-    state: present
-    wait: true
-    definition:
-      apiVersion: v1
-      kind: Secret
-      type: Opaque
-      metadata:
-        name: "{{ cifmw_test_operator_controller_priv_key_secret_name }}"
-        namespace: "{{ cifmw_test_operator_namespace }}"
-      data:
-        ssh-privatekey: "{{ lookup('file', '~/.ssh/id_cifw', rstrip=False) | b64encode }}"
+- name: Check that cifmw private key file exists
+  ansible.builtin.stat:
+    path: "{{ cifmw_test_operator_controller_priv_key_file_path }}"
+  register: private_key_file
 
-- name: Add SSHKeySecretName section to Tempest CR
+- name: Create secret with cifmw private key file and set SSHKeySecretName in TempestCR
   when:
     - not cifmw_test_operator_dry_run | bool
     - cifmw_test_operator_tempest_ssh_key_secret_name is not defined
-  ansible.builtin.set_fact:
-    test_operator_cr: >-
-      {{
-          test_operator_cr |
-          combine({'spec': {'SSHKeySecretName':
-                    cifmw_test_operator_controller_priv_key_secret_name
-                  }}, recursive=true)
-      }}
+    - private_key_file.stat.exists
+  block:
+    - name: Ensure a secret for the cifmw private key file exists
+      kubernetes.core.k8s:
+        kubeconfig: "{{ cifmw_openshift_kubeconfig }}"
+        api_key: "{{ cifmw_openshift_token | default(omit) }}"
+        context: "{{ cifmw_openshift_context | default(omit) }}"
+        state: present
+        wait: true
+        definition:
+          apiVersion: v1
+          kind: Secret
+          type: Opaque
+          metadata:
+            name: "{{ cifmw_test_operator_controller_priv_key_secret_name }}"
+            namespace: "{{ cifmw_test_operator_namespace }}"
+          data:
+            ssh-privatekey: >-
+              {{
+                  lookup('file', cifmw_test_operator_controller_priv_key_file_path, rstrip=False) |
+                  b64encode
+              }}
+
+    - name: Add SSHKeySecretName section to Tempest CR
+      ansible.builtin.set_fact:
+        test_operator_cr: >-
+          {{
+              test_operator_cr |
+              combine({'spec': {'SSHKeySecretName':
+                        cifmw_test_operator_controller_priv_key_secret_name
+                      }}, recursive=true)
+          }}
 
 - name: Add controller IP to the overrides section in Tempest CR
   when:

roles/test_operator/vars/main.yml

@@ -14,6 +14,7 @@
 # under the License.
 
 cifmw_test_operator_controller_priv_key_secret_name: "test-operator-controller-priv-key"
+cifmw_test_operator_controller_priv_key_file_path: "~/.ssh/id_cifw"
 cifmw_test_operator_tempest_kind_name: "Tempest"
 cifmw_test_operator_tobiko_kind_name: "Tobiko"
 cifmw_test_operator_ansibletest_kind_name: "AnsibleTest"