Fix non-signature authentication (#56038)

Apparently everyone is using signature authentication these days.

lib/ansible/module_utils/network/aci/aci.py

@@ -318,7 +318,7 @@ class ACIModule(object):
             self.url = '%(protocol)s://%(host)s/' % self.params + path.lstrip('/')
 
         # Sign and encode request as to APIC's wishes
-        if not self.params['private_key']:
+        if self.params['private_key']:
             self.cert_auth(path=path, payload=payload)
 
         # Perform request
@@ -355,7 +355,7 @@ class ACIModule(object):
             self.url = '%(protocol)s://%(host)s/' % self.params + path.lstrip('/')
 
         # Sign and encode request as to APIC's wishes
-        if not self.params['private_key']:
+        if self.params['private_key']:
             self.cert_auth(path=path, method='GET')
 
         # Perform request
@@ -642,7 +642,7 @@ class ACIModule(object):
 
         elif not self.module.check_mode:
             # Sign and encode request as to APIC's wishes
-            if not self.params['private_key']:
+            if self.params['private_key']:
                 self.cert_auth(method='DELETE')
 
             resp, info = fetch_url(self.module, self.url,
@@ -778,7 +778,7 @@ class ACIModule(object):
         uri = self.url + self.filter_string
 
         # Sign and encode request as to APIC's wishes
-        if not self.params['private_key']:
+        if self.params['private_key']:
             self.cert_auth(path=self.path + self.filter_string, method='GET')
 
         resp, info = fetch_url(self.module, uri,
@@ -879,7 +879,7 @@ class ACIModule(object):
             return
         elif not self.module.check_mode:
             # Sign and encode request as to APIC's wishes
-            if not self.params['private_key']:
+            if self.params['private_key']:
                 self.cert_auth(method='POST', payload=json.dumps(self.config))
 
             resp, info = fetch_url(self.module, self.url,