Only template values in vars_prompt rather than all vars (#39304)

* Only template values in vars_prompt rather than all vars

This allows the use of variables in vars_prompt fields but allows variables entered in the prompt to affect play vars rather than throwing an undefined error.

Only post validate if there was a vars_prompt

* Add tests for vars_prompt

1 files changed, 16 insertions, 0 deletions

diff --git a/test/integration/targets/vars_prompt/vars_prompt-2.yml b/test/integration/targets/vars_prompt/vars_prompt-2.yml
new file mode 100644
index 0000000000..d8f20db801
--- /dev/null
+++ b/test/integration/targets/vars_prompt/vars_prompt-2.yml
@@ -0,0 +1,16 @@
+- name: Test vars_prompt custom prompt
+  hosts: testhost
+  become: no
+  gather_facts: no
+
+  vars_prompt:
+    - name: input
+      prompt: "Enter some input"
+
+  tasks:
+    - assert:
+        that:
+          - input == 'some more input'
+
+    - debug:
+        var: input