PR to support commit check to confirm commits with JunOS (#49054)

* commit check support

Signed-off-by: Sumit Jaiswal <sjaiswal@redhat.com>

* fixed review comments

Signed-off-by: Sumit Jaiswal <sjaiswal@redhat.com>

* fixed review comments

Signed-off-by: Sumit Jaiswal <sjaiswal@redhat.com>

* fixed shippable

Signed-off-by: Sumit Jaiswal <sjaiswal@redhat.com>

lib/ansible/modules/network/junos/junos_config.py

@@ -122,6 +122,13 @@ options:
     type: bool
     default: 'no'
     version_added: "2.4"
+  check_commit:
+    description:
+      - This argument will check correctness of syntax; do not apply changes.
+      - Note that this argument can be used to confirm verified configuration done via commit confirmed operation
+    type: bool
+    default: 'no'
+    version_added: "2.8"
 requirements:
   - ncclient (>=v0.5.2)
 notes:
@@ -157,6 +164,10 @@ EXAMPLES = """
       - set interfaces irb unit 10 family inet address 10.0.0.1/24
       - set vlans vlan01 l3-interface irb.10
 
+- name: Check correctness of commit configuration
+  junos_config:
+    check_commit: yes
+
 - name: rollback the configuration to id 10
   junos_config:
     rollback: 10
@@ -313,6 +324,7 @@ def main():
         confirm=dict(default=0, type='int'),
         comment=dict(default=DEFAULT_COMMENT),
         confirm_commit=dict(type='bool', default=False),
+        check_commit=dict(type='bool', default=False),
 
         # config operations
         backup=dict(type='bool', default=False),
@@ -391,6 +403,9 @@ def main():
                     if module._diff:
                         result['diff'] = {'prepared': diff}
 
+        elif module.params['check_commit']:
+            commit_configuration(module, check=True)
+
         elif module.params['confirm_commit']:
             with locked_config(module):
                 # confirm a previous commit