From adc0d2cd8367064a7a61759908de2c52933cac81 Mon Sep 17 00:00:00 2001
From: Wojciech Wypior <w.wypior@f5.com>
Date: Thu, 11 Apr 2019 21:51:16 +0200
Subject: [PATCH] fixes an edge case where order of devices parameters breaks
 idempotency (#55181)

code correction for aggregates in bigip_gtm_pool_member and bigip_pool to be in line with established patterns
---
 .../modules/network/f5/bigip_gtm_pool_member.py      |  5 ++---
 lib/ansible/modules/network/f5/bigip_gtm_server.py   | 12 ++++++++++++
 lib/ansible/modules/network/f5/bigip_pool.py         |  6 +++---
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/lib/ansible/modules/network/f5/bigip_gtm_pool_member.py b/lib/ansible/modules/network/f5/bigip_gtm_pool_member.py
index 159d516fb8..2246fad19e 100644
--- a/lib/ansible/modules/network/f5/bigip_gtm_pool_member.py
+++ b/lib/ansible/modules/network/f5/bigip_gtm_pool_member.py
@@ -606,9 +606,8 @@ class ModuleManager(object):
         self.want = None
         self.have = None
         self.changes = None
-        self.replace_all_with = False
+        self.replace_all_with = None
         self.purge_links = list()
-        self.on_device = None
 
     def _set_changed_options(self):
         changed = {}
@@ -711,7 +710,7 @@ class ModuleManager(object):
 
         if diff:
             to_purge = [item['selfLink'] for item in on_device if self._transform_api_names(item) in diff]
-            self.purge_links = to_purge
+            self.purge_links.extend(to_purge)
 
     def execute(self, params=None):
         self.want = ModuleParameters(params=params)
diff --git a/lib/ansible/modules/network/f5/bigip_gtm_server.py b/lib/ansible/modules/network/f5/bigip_gtm_server.py
index 5715d62f30..6b6199870f 100644
--- a/lib/ansible/modules/network/f5/bigip_gtm_server.py
+++ b/lib/ansible/modules/network/f5/bigip_gtm_server.py
@@ -1157,10 +1157,22 @@ class Difference(object):
             )
         want = [OrderedDict(sorted(d.items())) for d in devices]
         have = [OrderedDict(sorted(d.items())) for d in have_devices]
+        if len(have_devices) > 0:
+            if self._false_positive(devices, have_devices):
+                return False
         if want != have:
             return True
         return False
 
+    def _false_positive(self, devices, have_devices):
+        match = 0
+        for w in devices:
+            for h in have_devices:
+                if w.items() == h.items():
+                    match = match + 1
+        if match == len(devices):
+            return True
+
     def _server_type_changed(self):
         if self.want.server_type is None:
             self.want.update({'server_type': self.have.server_type})
diff --git a/lib/ansible/modules/network/f5/bigip_pool.py b/lib/ansible/modules/network/f5/bigip_pool.py
index 55033198f3..5197e9c940 100644
--- a/lib/ansible/modules/network/f5/bigip_pool.py
+++ b/lib/ansible/modules/network/f5/bigip_pool.py
@@ -814,8 +814,8 @@ class ModuleManager(object):
         self.want = None
         self.have = None
         self.changes = None
-        self.replace_all_with = False
-        self.purge_links = None
+        self.replace_all_with = None
+        self.purge_links = list()
 
     def exec_module(self):
         wants = None
@@ -874,7 +874,7 @@ class ModuleManager(object):
 
         if diff:
             to_purge = [item['selfLink'] for item in on_device if item['name'] in diff]
-            self.purge_links = to_purge
+            self.purge_links.extend(to_purge)
 
     def execute(self, params=None):
         self.want = ModuleParameters(params=params)