Fix background sync triggers for Kubernetes scenarios (#7373)

Author: divyagandhisethi

src/WebJobs.Script.WebHost/Management/FunctionsSyncManager.cs

@@ -106,11 +106,11 @@ public async Task<SyncTriggersResult> TrySyncTriggersAsync(bool isBackgroundSync
                 await _syncSemaphore.WaitAsync();
 
                 var hashBlobClient = await GetHashBlobAsync();
-                if (isBackgroundSync && hashBlobClient == null)
+                if (isBackgroundSync && hashBlobClient == null && !_environment.IsKubernetesManagedHosting())
                 {
                     // short circuit before doing any work in background sync
                     // cases where we need to check/update hash but don't have
-                    // storage access
+                    // storage access in non-Kubernetes environments.
                     return result;
                 }
 
@@ -127,7 +127,7 @@ public async Task<SyncTriggersResult> TrySyncTriggersAsync(bool isBackgroundSync
 
                 bool shouldSyncTriggers = true;
                 string newHash = null;
-                if (isBackgroundSync)
+                if (isBackgroundSync && !_environment.IsKubernetesManagedHosting())
                 {
                     newHash = await CheckHashAsync(hashBlobClient, payload.Content);
                     shouldSyncTriggers = newHash != null;

src/WebJobs.Script/Host/Kubernetes/KubernetesClient.cs

@@ -66,6 +66,7 @@ internal async Task<KubernetesLockHandle> TryAcquireLock (string lockId, string
             {
                 lockHandle.LockId = lockId;
                 lockHandle.Owner = ownerId;
+                lockHandle.LockPeriod = lockPeriod.TotalSeconds.ToString();
             }
             return lockHandle;
         }

test/WebJobs.Script.Tests.Integration/KubernetesDistributedLockManagerTests.cs

@@ -46,8 +46,12 @@ public async Task AcquireLockRequest_ReturnsCorrectLockHandle(HttpStatusCode sta
 
             if (status == HttpStatusCode.OK)
             {
-                Assert.Equal(expectedLockId, lockHandle.LockId);
-                Assert.Equal(expectedOwnerId, ((KubernetesLockHandle)lockHandle).Owner);
+                Assert.IsType<KubernetesLockHandle> (lockHandle);
+
+                var kubernetesLockHandleResult = (KubernetesLockHandle)lockHandle;
+                Assert.Equal(expectedLockId, kubernetesLockHandleResult.LockId);
+                Assert.Equal(expectedOwnerId, kubernetesLockHandleResult.Owner);
+                Assert.Equal("5", kubernetesLockHandleResult.LockPeriod);
             }
             else
             {