diff --git a/controller/linodemachine_controller.go b/controller/linodemachine_controller.go index 06a54687..f41548e5 100644 --- a/controller/linodemachine_controller.go +++ b/controller/linodemachine_controller.go @@ -300,6 +300,9 @@ func (r *LinodeMachineReconciler) reconcileCreate( createOpts, err := r.newCreateConfig(ctx, machineScope, tags, logger) if err != nil { logger.Error(err, "Failed to create Linode machine InstanceCreateOptions") + if util.IsTransientError(err) { + return ctrl.Result{RequeueAfter: reconciler.DefaultMachineControllerRetryDelay}, nil + } return ctrl.Result{}, err } diff --git a/util/helpers.go b/util/helpers.go index 9e12098b..ce056b91 100644 --- a/util/helpers.go +++ b/util/helpers.go @@ -2,6 +2,9 @@ package util import ( "errors" + "io" + "net/http" + "os" "github.com/linode/linodego" ) @@ -30,3 +33,23 @@ func UnwrapError(err error) error { return err } + +// IsTransientError determines if the error is transient, meaning a controller that +// encounters this error should requeue reconciliation to try again later +func IsTransientError(err error) bool { + if linodego.ErrHasStatus( + err, + http.StatusTooManyRequests, + http.StatusInternalServerError, + http.StatusBadGateway, + http.StatusGatewayTimeout, + http.StatusServiceUnavailable) { + return true + } + + if errors.Is(err, http.ErrHandlerTimeout) || errors.Is(err, os.ErrDeadlineExceeded) || errors.Is(err, io.ErrUnexpectedEOF) { + return true + } + + return false +} diff --git a/util/helpers_test.go b/util/helpers_test.go index 1be23196..5e65b242 100644 --- a/util/helpers_test.go +++ b/util/helpers_test.go @@ -2,6 +2,8 @@ package util import ( "errors" + "io" + "net/http" "testing" "github.com/linode/linodego" @@ -49,3 +51,41 @@ func TestIgnoreLinodeAPIError(t *testing.T) { }) } } + +func TestIsTransientError(t *testing.T) { + t.Parallel() + tests := []struct { + name string + err error + shouldRetry bool + }{{ + name: "unexpected EOF", + err: io.ErrUnexpectedEOF, + shouldRetry: true, + }, { + name: "not found Linode API error", + err: &linodego.Error{ + Response: nil, + Code: http.StatusNotFound, + Message: "not found", + }, + shouldRetry: false, + }, { + name: "Rate limiting Linode API error", + err: &linodego.Error{ + Response: nil, + Code: http.StatusTooManyRequests, + Message: "rate limited", + }, + shouldRetry: true, + }} + for _, tt := range tests { + testcase := tt + t.Run(testcase.name, func(t *testing.T) { + t.Parallel() + if testcase.shouldRetry != IsTransientError(testcase.err) { + t.Errorf("wanted %v, got %v", testcase.shouldRetry, IsTransientError(testcase.err)) + } + }) + } +}