Add applicationSpecSchemaV3

argocd/resource_argocd_application.go

@@ -27,7 +27,7 @@ func resourceArgoCDApplication() *schema.Resource {
 		},
 		Schema: map[string]*schema.Schema{
 			"metadata": metadataSchema("applications.argoproj.io"),
-			"spec":     applicationSpecSchemaV2(),
+			"spec":     applicationSpecSchemaV3(),
 			"wait": {
 				Type:        schema.TypeBool,
 				Description: "Upon application creation or update, wait for application health/sync status to be healthy/Synced, upon application deletion, wait for application to be removed, when set to true.",

argocd/schema_application.go

@@ -1166,6 +1166,16 @@ func applicationSpecSchemaV2() *schema.Schema {
 	}
 }
 
+func applicationSpecSchemaV3() *schema.Schema {
+	// To support deploying applications to non-default namespaces (aka project
+	// source namespaces), we need to do a state migration to ensure that the Id
+	// on existing resources is updated to include the namespace.
+	// For this to happen, we need to trigger a schema version upgrade on the
+	// application resource however, the schema of the application `spec` has
+	// changed from `v2`.
+	return applicationSpecSchemaV2()
+}
+
 func resourceArgoCDApplicationV0() *schema.Resource {
 	return &schema.Resource{
 		Schema: map[string]*schema.Schema{