Sync option

controller/sync.go

@@ -90,7 +90,13 @@ func (m *appStateManager) SyncAppState(appProject *v1alpha1.AppProject, app *v1a
 	var source v1alpha1.ApplicationSource
 	var sources []v1alpha1.ApplicationSource
 	revisions := make([]string, 0)
-	projectSyncOp := appProject.Spec.SyncPolicy.SyncOptions
+	var projectSyncOp v1alpha1.SyncOptions
+
+	if appProject.Spec.SyncPolicy != nil {
+		projectSyncOp = appProject.Spec.SyncPolicy.SyncOptions
+	} else {
+		projectSyncOp = nil
+	}
 
 	if state.Operation.Sync == nil {
 		state.Phase = common.OperationFailed

docs/operator-manual/project.yaml

@@ -86,6 +86,36 @@ spec:
     clusters:
       - in-cluster
       - cluster1
+
+    # Sync policy
+  syncPolicy:
+    automated: # automated sync by default retries failed attempts 5 times with following delays between attempts ( 5s, 10s, 20s, 40s, 80s ); retry controlled using `retry` field.
+      prune: true # Specifies if resources should be pruned during auto-syncing ( false by default ).
+      selfHeal: true # Specifies if partial app sync should be executed when resources are changed only in target Kubernetes cluster and no git change detected ( false by default ).
+      allowEmpty: false # Allows deleting all application resources during automatic syncing ( false by default ).
+    syncOptions:     # Sync options which modifies sync behavior
+    - Validate=false # disables resource validation (equivalent to 'kubectl apply --validate=false') ( true by default ).
+    - CreateNamespace=true # Namespace Auto-Creation ensures that namespace specified as the application destination exists in the destination cluster.
+    - PrunePropagationPolicy=foreground # Supported policies are background, foreground and orphan.
+    - PruneLast=true # Allow the ability for resource pruning to happen as a final, implicit wave of a sync operation
+    - RespectIgnoreDifferences=true # When syncing changes, respect fields ignored by the ignoreDifferences configuration
+    - ApplyOutOfSyncOnly=true # Only sync out-of-sync resources, rather than applying every object in the application
+    managedNamespaceMetadata: # Sets the metadata for the application namespace. Only valid if CreateNamespace=true (see above), otherwise it's a no-op.
+      labels: # The labels to set on the application namespace
+        any: label
+        you: like
+      annotations: # The annotations to set on the application namespace
+        the: same
+        applies: for
+        annotations: on-the-namespace
+
+    # The retry feature is available since v1.7
+    retry:
+      limit: 5 # number of failed sync attempt retries; unlimited number of attempts if less than 0
+      backoff:
+        duration: 5s # the amount to back off. Default unit is seconds, but could also be a duration (e.g. "2m", "1h")
+        factor: 2 # a factor to multiply the base duration after each failed retry
+        maxDuration: 3m # the maximum amount of time allowed for the backoff strategy
 
   # By default, apps may sync to any cluster specified under the `destinations` field, even if they are not
   # scoped to this project. Set the following field to `true` to restrict apps in this cluster to only clusters