[Feature] Add UpToDate Condition (#540)

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Change Log
 
 ## [master](https://github.com/arangodb/kube-arangodb/tree/master) (N/A)
+- Added UpToDate condition in ArangoDeployment Status
 
 ## [1.0.1](https://github.com/arangodb/kube-arangodb/tree/1.0.1) (2020-03-25)
 - Added Customizable Affinity settings for ArangoDB Member Pods

pkg/apis/deployment/v1/conditions.go

@@ -59,6 +59,8 @@ const (
 	ConditionTypeBootstrapSucceded ConditionType = "BootstrapSucceded"
 	// ConditionTypeTerminating indicates that the member is terminating but not yet terminated.
 	ConditionTypeTerminating ConditionType = "Terminating"
+	// ConditionTypeTerminating indicates that the deployment is up to date.
+	ConditionTypeUpToDate ConditionType = "UpToDate"
 )
 
 // Condition represents one current condition of a deployment or deployment member.
@@ -79,6 +81,10 @@ type Condition struct {
 	Message string `json:"message,omitempty"`
 }
 
+func (c Condition) IsTrue() bool {
+	return c.Status == v1.ConditionTrue
+}
+
 // ConditionList is a list of conditions.
 // Each type is allowed only once.
 type ConditionList []Condition
@@ -116,12 +122,17 @@ func (c Condition) Equal(other Condition) bool {
 // IsTrue return true when a condition with given type exists and its status is `True`.
 func (list ConditionList) IsTrue(conditionType ConditionType) bool {
 	c, found := list.Get(conditionType)
-	return found && c.Status == v1.ConditionTrue
+	return found && c.IsTrue()
 }
 
 // Get a condition by type.
 // Returns true if found, false if not found.
 func (list ConditionList) Get(conditionType ConditionType) (Condition, bool) {
+	// Covers nil and empty lists
+	if len(list) == 0 {
+		return Condition{}, false
+	}
+
 	for _, x := range list {
 		if x.Type == conditionType {
 			return x, true

pkg/apis/deployment/v1/deployment.go

@@ -93,3 +93,13 @@ func (d *ArangoDeployment) ForeachServerGroup(cb ServerGroupFunc, status *Deploy
 	}
 	return nil
 }
+
+// IsUpToDate checks if applied version match current version in spec
+func (d ArangoDeployment) IsUpToDate() (bool, error) {
+	sha, err := d.Spec.Checksum()
+	if err != nil {
+		return false, err
+	}
+
+	return sha == d.Status.AppliedVersion && d.Status.Conditions.IsTrue(ConditionTypeUpToDate), nil
+}

pkg/apis/deployment/v1/deployment_spec.go

@@ -23,6 +23,9 @@
 package v1
 
 import (
+	"crypto/sha256"
+	"encoding/json"
+	"fmt"
 	"reflect"
 
 	"github.com/arangodb/kube-arangodb/pkg/util"
@@ -413,3 +416,13 @@ func (s DeploymentSpec) ResetImmutableFields(target *DeploymentSpec) []string {
 	}
 	return resetFields
 }
+
+// Checksum return checksum of current ArangoDeployment Spec section
+func (s DeploymentSpec) Checksum() (string, error) {
+	data, err := json.Marshal(s)
+	if err != nil {
+		return "", err
+	}
+
+	return fmt.Sprintf("%0x", sha256.Sum256(data)), nil
+}

pkg/apis/deployment/v1/deployment_status.go

@@ -33,6 +33,9 @@ type DeploymentStatus struct {
 	// Reason contains a human readable reason for reaching the current state (can be empty)
 	Reason string `json:"reason,omitempty"` // Reason for current state
 
+	// AppliedVersion defines checksum of applied spec
+	AppliedVersion string `json:"appliedVersion"`
+
 	// ServiceName holds the name of the Service a client can use (inside the k8s cluster)
 	// to access ArangoDB.
 	ServiceName string `json:"serviceName,omitempty"`

pkg/apis/deployment/v1/plan.go

@@ -25,6 +25,7 @@ package v1
 import (
 	"github.com/arangodb/kube-arangodb/pkg/util"
 	"github.com/dchest/uniuri"
+	"k8s.io/apimachinery/pkg/api/equality"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
@@ -66,6 +67,8 @@ const (
 	ActionTypePVCResize ActionType = "PVCResize"
 	// ActionTypePVCResized waits for PVC to resize for defined time
 	ActionTypePVCResized ActionType = "PVCResized"
+	// UpToDateUpdateResized define up to date annotation in spec
+	UpToDateUpdate ActionType = "UpToDateUpdate"
 )
 
 const (
@@ -92,6 +95,8 @@ type Action struct {
 	Reason string `json:"reason,omitempty"`
 	// Image used in can of a SetCurrentImage action.
 	Image string `json:"image,omitempty"`
+	// Params additional parameters used for action
+	Params map[string]interface{} `json:"params,omitempty"`
 }
 
 // Equal compares two Actions
@@ -103,7 +108,30 @@ func (a Action) Equal(other Action) bool {
 		util.TimeCompareEqual(a.CreationTime, other.CreationTime) &&
 		util.TimeCompareEqualPointer(a.StartTime, other.StartTime) &&
 		a.Reason == other.Reason &&
-		a.Image == other.Image
+		a.Image == other.Image &&
+		equality.Semantic.DeepEqual(a.Params, other.Params)
+}
+
+// AddParam returns copy of action with set parameter
+func (a Action) AddParam(key string, value interface{}) Action {
+	if a.Params == nil {
+		a.Params = map[string]interface{}{}
+	}
+
+	a.Params[key] = value
+
+	return a
+}
+
+// GetParam returns action parameter
+func (a Action) GetParam(key string) (interface{}, bool) {
+	if a.Params == nil {
+		return nil, false
+	}
+
+	i, ok := a.Params[key]
+
+	return i, ok
 }
 
 // NewAction instantiates a new Action.

pkg/deployment/context_impl.go

@@ -103,6 +103,10 @@ func (d *Deployment) GetStatus() (api.DeploymentStatus, int32) {
 	d.status.mutex.Lock()
 	defer d.status.mutex.Unlock()
 
+	return d.getStatus()
+}
+
+func (d *Deployment) getStatus() (api.DeploymentStatus, int32) {
 	version := d.status.version
 	return *d.status.last.DeepCopy(), version
 }
@@ -115,6 +119,10 @@ func (d *Deployment) UpdateStatus(status api.DeploymentStatus, lastVersion int32
 	d.status.mutex.Lock()
 	defer d.status.mutex.Unlock()
 
+	return d.updateStatus(status, lastVersion, force...)
+}
+
+func (d *Deployment) updateStatus(status api.DeploymentStatus, lastVersion int32, force ...bool) error {
 	if d.status.version != lastVersion {
 		// Status is obsolete
 		d.deps.Log.Error().
@@ -483,3 +491,18 @@ func (d *Deployment) GetMetricsExporterImage() string {
 func (d *Deployment) GetArangoImage() string {
 	return d.config.ArangoImage
 }
+
+func (d *Deployment) WithStatusUpdate(action func(s *api.DeploymentStatus) bool, force ...bool) error {
+	d.status.mutex.Lock()
+	defer d.status.mutex.Unlock()
+
+	status, version := d.getStatus()
+
+	changed := action(&status)
+
+	if !changed {
+		return nil
+	}
+
+	return d.updateStatus(status, version, force...)
+}

pkg/deployment/deployment_inspector.go

@@ -26,6 +26,8 @@ import (
 	"context"
 	"time"
 
+	"github.com/pkg/errors"
+
 	"github.com/arangodb/kube-arangodb/pkg/apis/deployment"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
@@ -84,138 +86,11 @@ func (d *Deployment) inspectDeployment(lastInterval util.Interval) util.Interval
 			return nextInterval
 		}
 
-		// Inspect secret hashes
+		if inspectNextInterval, err := d.inspectDeploymentWithError(ctx, nextInterval); err != nil {
-		if err := d.resources.ValidateSecretHashes(); err != nil {
+			nextInterval = inspectNextInterval
 			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Secret hash validation failed", err, d.apiObject))
-		}
 
-		// Check for LicenseKeySecret
+			d.CreateEvent(k8sutil.NewErrorEvent("Reconcilation failed", err, d.apiObject))
-		if err := d.resources.ValidateLicenseKeySecret(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("License Key Secret invalid", err, d.apiObject))
-		}
-
-		// Is the deployment in a good state?
-		status, _ := d.GetStatus()
-		if status.Conditions.IsTrue(api.ConditionTypeSecretsChanged) {
-			log.Debug().Msg("Condition SecretsChanged is true. Revert secrets before we can continue")
-			return nextInterval
-		}
-
-		// Ensure we have image info
-		if retrySoon, err := d.ensureImages(d.apiObject); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Image detection failed", err, d.apiObject))
-		} else if retrySoon {
-			nextInterval = minInspectionInterval
-		}
-
-		// Inspection of generated resources needed
-		if x, err := d.resources.InspectPods(ctx); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Pod inspection failed", err, d.apiObject))
-		} else {
-			nextInterval = nextInterval.ReduceTo(x)
-		}
-		if x, err := d.resources.InspectPVCs(ctx); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("PVC inspection failed", err, d.apiObject))
-		} else {
-			nextInterval = nextInterval.ReduceTo(x)
-		}
-
-		// Check members for resilience
-		if err := d.resilience.CheckMemberFailure(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Member failure detection failed", err, d.apiObject))
-		}
-
-		// Immediate actions
-		if err := d.reconciler.CheckDeployment(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Reconciler immediate actions failed", err, d.apiObject))
-		}
-
-		// Create scale/update plan
-		if err := d.reconciler.CreatePlan(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Plan creation failed", err, d.apiObject))
-		}
-
-		// Execute current step of scale/update plan
-		retrySoon, err := d.reconciler.ExecutePlan(ctx)
-		if err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Plan execution failed", err, d.apiObject))
-		}
-		if retrySoon {
-			nextInterval = minInspectionInterval
-		}
-
-		// Ensure all resources are created
-		if err := d.resources.EnsureSecrets(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Secret creation failed", err, d.apiObject))
-		}
-		if err := d.resources.EnsureServices(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Service creation failed", err, d.apiObject))
-		}
-		if d.haveServiceMonitorCRD {
-			if err := d.resources.EnsureServiceMonitor(); err != nil {
-				hasError = true
-				d.CreateEvent(k8sutil.NewErrorEvent("Service monitor creation failed", err, d.apiObject))
-			}
-		}
-
-		if err := d.resources.EnsurePVCs(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("PVC creation failed", err, d.apiObject))
-		}
-		if err := d.resources.EnsurePods(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Pod creation failed", err, d.apiObject))
-		}
-		if err := d.resources.EnsurePDBs(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("PDB creation failed", err, d.apiObject))
-		}
-
-		if err := d.resources.EnsureAnnotations(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Annotation update failed", err, d.apiObject))
-		}
-
-		// Create access packages
-		if err := d.createAccessPackages(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("AccessPackage creation failed", err, d.apiObject))
-		}
-
-		// Ensure deployment bootstrap
-		if err := d.EnsureBootstrap(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Bootstrap failed", err, d.apiObject))
-		}
-
-		// Inspect deployment for obsolete members
-		if err := d.resources.CleanupRemovedMembers(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Removed member cleanup failed", err, d.apiObject))
-		}
-
-		if err := d.backup.CheckRestore(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Restore operation failed", err, d.apiObject))
-		}
-
-		// At the end of the inspect, we cleanup terminated pods.
-		if x, err := d.resources.CleanupTerminatedPods(); err != nil {
-			hasError = true
-			d.CreateEvent(k8sutil.NewErrorEvent("Pod cleanup failed", err, d.apiObject))
-		} else {
-			nextInterval = nextInterval.ReduceTo(x)
 		}
 	}
 
@@ -231,6 +106,170 @@ func (d *Deployment) inspectDeployment(lastInterval util.Interval) util.Interval
 	return nextInterval.ReduceTo(maxInspectionInterval)
 }
 
+func (d *Deployment) inspectDeploymentWithError(ctx context.Context, lastInterval util.Interval) (nextInterval util.Interval, inspectError error) {
+	// Ensure that spec and status checksum are same
+	spec := d.GetSpec()
+	status, _ := d.getStatus()
+
+	nextInterval = lastInterval
+	inspectError = nil
+
+	checksum, err := spec.Checksum()
+	if err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Calculation of spec failed")
+	} else {
+		condition, exists := status.Conditions.Get(api.ConditionTypeUpToDate)
+		if (checksum != status.AppliedVersion && (!exists || condition.IsTrue())) ||
+			(checksum == status.AppliedVersion && (!exists || !condition.IsTrue())) {
+			if err = d.WithStatusUpdate(func(s *api.DeploymentStatus) bool {
+				if checksum == status.AppliedVersion {
+					return s.Conditions.Update(api.ConditionTypeUpToDate, true, "Everything is UpToDate", "Spec applied")
+				}
+				return s.Conditions.Update(api.ConditionTypeUpToDate, false, "Spec Changed", "Spec Object changed. Waiting until plan will be applied")
+			}); err != nil {
+				return minInspectionInterval, errors.Wrapf(err, "Unable to update UpToDate condition")
+			}
+
+			return minInspectionInterval, nil // Retry ASAP
+		}
+	}
+
+	// Inspect secret hashes
+	if err := d.resources.ValidateSecretHashes(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Secret hash validation failed")
+	}
+
+	// Check for LicenseKeySecret
+	if err := d.resources.ValidateLicenseKeySecret(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "License Key Secret invalid")
+	}
+
+	// Is the deployment in a good state?
+	if status.Conditions.IsTrue(api.ConditionTypeSecretsChanged) {
+		return minInspectionInterval, errors.Errorf("Secrets changed")
+	}
+
+	// Ensure we have image info
+	if retrySoon, err := d.ensureImages(d.apiObject); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Image detection failed")
+	} else if retrySoon {
+		return minInspectionInterval, nil
+	}
+
+	// Inspection of generated resources needed
+	if x, err := d.resources.InspectPods(ctx); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Pod inspection failed")
+	} else {
+		nextInterval = nextInterval.ReduceTo(x)
+	}
+	if x, err := d.resources.InspectPVCs(ctx); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "PVC inspection failed")
+	} else {
+		nextInterval = nextInterval.ReduceTo(x)
+	}
+
+	// Check members for resilience
+	if err := d.resilience.CheckMemberFailure(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Member failure detection failed")
+	}
+
+	// Immediate actions
+	if err := d.reconciler.CheckDeployment(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Reconciler immediate actions failed")
+	}
+
+	if interval, err := d.ensureResources(nextInterval); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Reconciler resource recreation failed")
+	} else {
+		nextInterval = interval
+	}
+
+	// Create scale/update plan
+	if err := d.reconciler.CreatePlan(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Plan creation failed")
+	}
+
+	// Execute current step of scale/update plan
+	retrySoon, err := d.reconciler.ExecutePlan(ctx)
+	if err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Plan execution failed")
+	}
+	if retrySoon {
+		nextInterval = minInspectionInterval
+	} else {
+		// Do not retry - so plan is empty
+		if status.AppliedVersion != checksum {
+			if err := d.WithStatusUpdate(func(s *api.DeploymentStatus) bool {
+				s.AppliedVersion = checksum
+				return true
+			}); err != nil {
+				return minInspectionInterval, errors.Wrapf(err, "Unable to update UpToDate condition")
+			}
+
+			return minInspectionInterval, nil
+		}
+	}
+
+	// Create access packages
+	if err := d.createAccessPackages(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "AccessPackage creation failed")
+	}
+
+	// Ensure deployment bootstrap
+	if err := d.EnsureBootstrap(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Bootstrap failed")
+	}
+
+	// Inspect deployment for obsolete members
+	if err := d.resources.CleanupRemovedMembers(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Removed member cleanup failed")
+	}
+
+	if err := d.backup.CheckRestore(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Restore operation failed")
+	}
+
+	// At the end of the inspect, we cleanup terminated pods.
+	if x, err := d.resources.CleanupTerminatedPods(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Pod cleanup failed")
+	} else {
+		nextInterval = nextInterval.ReduceTo(x)
+	}
+
+	return
+}
+
+func (d *Deployment) ensureResources(lastInterval util.Interval) (util.Interval, error) {
+	// Ensure all resources are created
+	if err := d.resources.EnsureSecrets(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Secret creation failed")
+	}
+	if err := d.resources.EnsureServices(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Service creation failed")
+	}
+	if d.haveServiceMonitorCRD {
+		if err := d.resources.EnsureServiceMonitor(); err != nil {
+			return minInspectionInterval, errors.Wrapf(err, "Service monitor creation failed")
+		}
+	}
+
+	if err := d.resources.EnsurePVCs(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "PVC creation failed")
+	}
+	if err := d.resources.EnsurePods(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Pod creation failed")
+	}
+	if err := d.resources.EnsurePDBs(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "PDB creation failed")
+	}
+
+	if err := d.resources.EnsureAnnotations(); err != nil {
+		return minInspectionInterval, errors.Wrapf(err, "Annotation update failed")
+	}
+
+	return lastInterval, nil
+}
+
 // triggerInspection ensures that an inspection is run soon.
 func (d *Deployment) triggerInspection() {
 	d.inspectTrigger.Trigger()

pkg/deployment/reconcile/action.go

@@ -24,7 +24,12 @@ package reconcile
 
 import (
 	"context"
+	"fmt"
+	"sync"
 	"time"
+
+	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
+	"github.com/rs/zerolog"
 )
 
 // Action executes a single Plan item.
@@ -41,3 +46,30 @@ type Action interface {
 	// Return the MemberID used / created in this action
 	MemberID() string
 }
+
+type actionFactory func(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action
+
+var (
+	actions     = map[api.ActionType]actionFactory{}
+	actionsLock sync.Mutex
+)
+
+func registerAction(t api.ActionType, f actionFactory) {
+	actionsLock.Lock()
+	defer actionsLock.Unlock()
+
+	_, ok := actions[t]
+	if ok {
+		panic(fmt.Sprintf("Action already defined %s", t))
+	}
+
+	actions[t] = f
+}
+
+func getActionFactory(t api.ActionType) (actionFactory, bool) {
+	actionsLock.Lock()
+	defer actionsLock.Unlock()
+
+	f, ok := actions[t]
+	return f, ok
+}

pkg/deployment/reconcile/action_add_member.go

@@ -24,28 +24,34 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 )
 
-// NewAddMemberAction creates a new Action that implements the given
+func init() {
-// planned AddMember action.
+	registerAction(api.ActionTypeAddMember, newAddMemberAction)
-func NewAddMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionAddMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newAddMemberAction creates a new Action that implements the given
+// planned AddMember action.
+func newAddMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionAddMember{}
+
+	a.actionImpl = newActionImpl(log, action, actionCtx, addMemberTimeout, &a.newMemberID)
+
+	return a
 }
 
 // actionAddMember implements an AddMemberAction.
 type actionAddMember struct {
-	log         zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action      api.Action
+	actionImpl
-	actionCtx   ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
+
 	newMemberID string
 }
 
@@ -61,20 +67,3 @@ func (a *actionAddMember) Start(ctx context.Context) (bool, error) {
 	a.newMemberID = newID
 	return true, nil
 }
-
-// CheckProgress checks the progress of the action.
-// Returns true if the action is completely finished, false otherwise.
-func (a *actionAddMember) CheckProgress(ctx context.Context) (bool, bool, error) {
-	// Nothing todo
-	return true, false, nil
-}
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionAddMember) Timeout() time.Duration {
-	return addMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionAddMember) MemberID() string {
-	return a.newMemberID
-}

pkg/deployment/reconcile/action_cleanout_member.go

@@ -24,7 +24,6 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	driver "github.com/arangodb/go-driver"
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
@@ -33,21 +32,24 @@ import (
 	"github.com/arangodb/kube-arangodb/pkg/util/arangod"
 )
 
-// NewCleanOutMemberAction creates a new Action that implements the given
+func init() {
-// planned CleanOutMember action.
+	registerAction(api.ActionTypeCleanOutMember, newCleanOutMemberAction)
-func NewCleanOutMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionCleanoutMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newCleanOutMemberAction creates a new Action that implements the given
+// planned CleanOutMember action.
+func newCleanOutMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionCleanoutMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, cleanoutMemberTimeout)
+
+	return a
 }
 
 // actionCleanoutMember implements an CleanOutMemberAction.
 type actionCleanoutMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -154,13 +156,3 @@ func (a *actionCleanoutMember) CheckProgress(ctx context.Context) (bool, bool, e
 	// Cleanout completed
 	return true, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionCleanoutMember) Timeout() time.Duration {
-	return cleanoutMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionCleanoutMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_context.go

@@ -109,6 +109,8 @@ type ActionContext interface {
 	DisableScalingCluster() error
 	// EnableScalingCluster enables scaling DBservers and coordinators
 	EnableScalingCluster() error
+	// WithStatusUpdate update status of ArangoDeployment with defined modifier. If action returns True action is taken
+	UpdateClusterCondition(conditionType api.ConditionType, status bool, reason, message string) error
 }
 
 // newActionContext creates a new ActionContext implementation.
@@ -125,6 +127,12 @@ type actionContext struct {
 	context Context
 }
 
+func (ac *actionContext) UpdateClusterCondition(conditionType api.ConditionType, status bool, reason, message string) error {
+	return ac.context.WithStatusUpdate(func(s *api.DeploymentStatus) bool {
+		return s.Conditions.Update(conditionType, status, reason, message)
+	})
+}
+
 func (ac *actionContext) GetPv(pvName string) (*v1.PersistentVolume, error) {
 	return ac.context.GetPv(pvName)
 }

pkg/deployment/reconcile/action_disable_scaling_cluster.go

@@ -22,27 +22,32 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
+	"github.com/arangodb/kube-arangodb/pkg/util"
 	"github.com/rs/zerolog"
 )
 
-// actionDisableScalingCluster implements disabling scaling DBservers and coordinators.
+func init() {
-type actionDisableScalingCluster struct {
+	registerAction(api.ActionTypeDisableClusterScaling, newDisableScalingCluster)
-	log         zerolog.Logger
-	action      api.Action
-	actionCtx   ActionContext
-	newMemberID string
 }
 
-// NewDisableScalingCluster creates the new action with disabling scaling DBservers and coordinators.
+// newDisableScalingCluster creates the new action with disabling scaling DBservers and coordinators.
-func NewDisableScalingCluster(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+func newDisableScalingCluster(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionDisableScalingCluster{
+	a := &actionDisableScalingCluster{}
-		log:       log,
+
-		action:    action,
+	a.actionImpl = newActionImpl(log, action, actionCtx, 0, util.NewString(""))
-		actionCtx: actionCtx,
+
+	return a
 }
+
+// actionDisableScalingCluster implements disabling scaling DBservers and coordinators.
+type actionDisableScalingCluster struct {
+	// actionImpl implement timeout and member id functions
+	actionImpl
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start disables scaling DBservers and coordinators
@@ -53,18 +58,3 @@ func (a *actionDisableScalingCluster) Start(ctx context.Context) (bool, error) {
 	}
 	return true, nil
 }
-
-// CheckProgress does not matter. Everything is done in 'Start' function
-func (a *actionDisableScalingCluster) CheckProgress(ctx context.Context) (bool, bool, error) {
-	return true, false, nil
-}
-
-// Timeout does not matter. Everything is done in 'Start' function
-func (a *actionDisableScalingCluster) Timeout() time.Duration {
-	return 0
-}
-
-// MemberID is not used
-func (a *actionDisableScalingCluster) MemberID() string {
-	return ""
-}

pkg/deployment/reconcile/action_enable_scaling_cluster.go

@@ -22,27 +22,32 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
+	"github.com/arangodb/kube-arangodb/pkg/util"
 	"github.com/rs/zerolog"
 )
 
-// actionEnableScalingCluster implements enabling scaling DBservers and coordinators.
+func init() {
-type actionEnableScalingCluster struct {
+	registerAction(api.ActionTypeEnableClusterScaling, newEnableScalingCluster)
-	log         zerolog.Logger
-	action      api.Action
-	actionCtx   ActionContext
-	newMemberID string
 }
 
-// NewEnableScalingCluster creates the new action with enabling scaling DBservers and coordinators.
+// newEnableScalingCluster creates the new action with enabling scaling DBservers and coordinators.
-func NewEnableScalingCluster(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+func newEnableScalingCluster(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionEnableScalingCluster{
+	a := &actionEnableScalingCluster{}
-		log:       log,
+
-		action:    action,
+	a.actionImpl = newActionImpl(log, action, actionCtx, 0, util.NewString(""))
-		actionCtx: actionCtx,
+
+	return a
 }
+
+// actionEnableScalingCluster implements enabling scaling DBservers and coordinators.
+type actionEnableScalingCluster struct {
+	// actionImpl implement timeout and member id functions
+	actionImpl
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start enables scaling DBservers and coordinators
@@ -53,18 +58,3 @@ func (a *actionEnableScalingCluster) Start(ctx context.Context) (bool, error) {
 	}
 	return true, nil
 }
-
-// CheckProgress does not matter. Everything is done in 'Start' function
-func (a *actionEnableScalingCluster) CheckProgress(ctx context.Context) (bool, bool, error) {
-	return true, false, nil
-}
-
-// Timeout does not matter. Everything is done in 'Start' function
-func (a *actionEnableScalingCluster) Timeout() time.Duration {
-	return 0
-}
-
-// MemberID is not used
-func (a *actionEnableScalingCluster) MemberID() string {
-	return ""
-}

pkg/deployment/reconcile/action_helper.go

@@ -0,0 +1,84 @@
+//
+// DISCLAIMER
+//
+// Copyright 2020 ArangoDB GmbH, Cologne, Germany
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Copyright holder is ArangoDB GmbH, Cologne, Germany
+//
+// Author Adam Janikowski
+//
+
+package reconcile
+
+import (
+	"context"
+	"time"
+
+	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
+	"github.com/rs/zerolog"
+)
+
+type actionEmptyCheckProgress struct {
+}
+
+// CheckProgress define optional check progress for action
+// Returns: ready, abort, error.
+func (e actionEmptyCheckProgress) CheckProgress(ctx context.Context) (bool, bool, error) {
+	return true, false, nil
+}
+
+type actionEmptyStart struct {
+}
+
+func (e actionEmptyStart) Start(ctx context.Context) (bool, error) {
+	return false, nil
+}
+
+func newActionImplDefRef(log zerolog.Logger, action api.Action, actionCtx ActionContext, timeout time.Duration) actionImpl {
+	return newActionImpl(log, action, actionCtx, timeout, &action.MemberID)
+}
+
+func newActionImpl(log zerolog.Logger, action api.Action, actionCtx ActionContext, timeout time.Duration, memberIDRef *string) actionImpl {
+	if memberIDRef == nil {
+		panic("Action cannot have nil reference to member!")
+	}
+
+	return actionImpl{
+		log:         log,
+		action:      action,
+		actionCtx:   actionCtx,
+		timeout:     timeout,
+		memberIDRef: memberIDRef,
+	}
+}
+
+type actionImpl struct {
+	log       zerolog.Logger
+	action    api.Action
+	actionCtx ActionContext
+
+	timeout     time.Duration
+	memberIDRef *string
+}
+
+// Timeout returns the amount of time after which this action will timeout.
+func (a actionImpl) Timeout() time.Duration {
+	return a.timeout
+}
+
+// Return the MemberID used / created in this action
+func (a actionImpl) MemberID() string {
+	return *a.memberIDRef
+}

pkg/deployment/reconcile/action_pvc_resize.go

@@ -24,7 +24,6 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	"github.com/arangodb/kube-arangodb/pkg/util/k8sutil"
 	core "k8s.io/api/core/v1"
@@ -34,21 +33,24 @@ import (
 	"github.com/rs/zerolog"
 )
 
-// NewRotateMemberAction creates a new Action that implements the given
+func init() {
-// planned RotateMember action.
+	registerAction(api.ActionTypePVCResize, newPVCResizeAction)
-func NewPVCResizeAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionPVCResize{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRotateMemberAction creates a new Action that implements the given
+// planned RotateMember action.
+func newPVCResizeAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionPVCResize{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, pvcResizeTimeout)
+
+	return a
 }
 
 // actionRotateMember implements an RotateMember.
 type actionPVCResize struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -147,13 +149,3 @@ func (a *actionPVCResize) CheckProgress(ctx context.Context) (bool, bool, error)
 
 	return false, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionPVCResize) Timeout() time.Duration {
-	return pvcResizeTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionPVCResize) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_pvc_resized.go

@@ -24,7 +24,6 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	"github.com/arangodb/kube-arangodb/pkg/util/k8sutil"
 	core "k8s.io/api/core/v1"
@@ -34,28 +33,27 @@ import (
 	"github.com/rs/zerolog"
 )
 
-// NewRotateMemberAction creates a new Action that implements the given
+func init() {
-// planned RotateMember action.
+	registerAction(api.ActionTypePVCResized, newPVCResizedAction)
-func NewPVCResizedAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionPVCResized{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRotateMemberAction creates a new Action that implements the given
+// planned RotateMember action.
+func newPVCResizedAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionPVCResized{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, pvcResizedTimeout)
+
+	return a
 }
 
 // actionRotateMember implements an RotateMember.
 type actionPVCResized struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
-}
 
-// Start performs the start of the action.
+	// actionEmptyStart empty start function
-// Returns true if the action is completely finished, false in case
+	actionEmptyStart
-// the start time needs to be recorded and a ready condition needs to be checked.
-func (a *actionPVCResized) Start(ctx context.Context) (bool, error) {
-	return false, nil
 }
 
 // CheckProgress checks the progress of the action.
@@ -94,13 +92,3 @@ func (a *actionPVCResized) CheckProgress(ctx context.Context) (bool, bool, error
 
 	return false, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionPVCResized) Timeout() time.Duration {
-	return pvcResizedTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionPVCResized) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_recreate_member.go

@@ -25,7 +25,6 @@ package reconcile
 import (
 	"context"
 	"fmt"
-	"time"
 
 	kubeErrors "k8s.io/apimachinery/pkg/api/errors"
 
@@ -34,21 +33,27 @@ import (
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 )
 
-// NewRecreateMemberAction creates a new Action that implements the given
+func init() {
-// planned RecreateMember action.
+	registerAction(api.ActionTypeRecreateMember, newRecreateMemberAction)
-func NewRecreateMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionRecreateMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRecreateMemberAction creates a new Action that implements the given
+// planned RecreateMember action.
+func newRecreateMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionRecreateMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, recreateMemberTimeout)
+
+	return a
 }
 
 // actionRecreateMember implements an RecreateMemberAction.
 type actionRecreateMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start performs the start of the action.
@@ -80,20 +85,3 @@ func (a *actionRecreateMember) Start(ctx context.Context) (bool, error) {
 
 	return true, nil
 }
-
-// CheckProgress checks the progress of the action.
-// Returns true if the action is completely finished, false otherwise.
-func (a *actionRecreateMember) CheckProgress(ctx context.Context) (bool, bool, error) {
-	// Nothing todo
-	return true, false, nil
-}
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionRecreateMember) Timeout() time.Duration {
-	return recreateMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionRecreateMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_remove_member.go

@@ -25,7 +25,6 @@ package reconcile
 import (
 	"context"
 	"fmt"
-	"time"
 
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog"
@@ -35,21 +34,27 @@ import (
 	"github.com/arangodb/kube-arangodb/pkg/util/arangod"
 )
 
-// NewRemoveMemberAction creates a new Action that implements the given
+func init() {
-// planned RemoveMember action.
+	registerAction(api.ActionTypeRemoveMember, newRemoveMemberAction)
-func NewRemoveMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionRemoveMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRemoveMemberAction creates a new Action that implements the given
+// planned RemoveMember action.
+func newRemoveMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionRemoveMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, removeMemberTimeout)
+
+	return a
 }
 
 // actionRemoveMember implements an RemoveMemberAction.
 type actionRemoveMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start performs the start of the action.
@@ -114,20 +119,3 @@ func (a *actionRemoveMember) Start(ctx context.Context) (bool, error) {
 	}
 	return true, nil
 }
-
-// CheckProgress checks the progress of the action.
-// Returns true if the action is completely finished, false otherwise.
-func (a *actionRemoveMember) CheckProgress(ctx context.Context) (bool, bool, error) {
-	// Nothing todo
-	return true, false, nil
-}
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionRemoveMember) Timeout() time.Duration {
-	return removeMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionRemoveMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_renew_tls_ca_certificate.go

@@ -30,21 +30,27 @@ import (
 	"github.com/rs/zerolog"
 )
 
-// NewRenewTLSCACertificateAction creates a new Action that implements the given
+func init() {
-// planned RenewTLSCACertificate action.
+	registerAction(api.ActionTypeRenewTLSCACertificate, newRenewTLSCACertificateAction)
-func NewRenewTLSCACertificateAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &renewTLSCACertificateAction{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRenewTLSCACertificateAction creates a new Action that implements the given
+// planned RenewTLSCACertificate action.
+func newRenewTLSCACertificateAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &renewTLSCACertificateAction{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, renewTLSCACertificateTimeout)
+
+	return a
 }
 
 // renewTLSCACertificateAction implements a RenewTLSCACertificate action.
 type renewTLSCACertificateAction struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start performs the start of the action.

pkg/deployment/reconcile/action_renew_tls_certificate.go

@@ -24,27 +24,32 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewRenewTLSCertificateAction creates a new Action that implements the given
+func init() {
-// planned RenewTLSCertificate action.
+	registerAction(api.ActionTypeRenewTLSCertificate, newRenewTLSCertificateAction)
-func NewRenewTLSCertificateAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &renewTLSCertificateAction{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRenewTLSCertificateAction creates a new Action that implements the given
+// planned RenewTLSCertificate action.
+func newRenewTLSCertificateAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &renewTLSCertificateAction{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, renewTLSCertificateTimeout)
+
+	return a
 }
 
 // renewTLSCertificateAction implements a RenewTLSCertificate action.
 type renewTLSCertificateAction struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start performs the start of the action.
@@ -64,19 +69,3 @@ func (a *renewTLSCertificateAction) Start(ctx context.Context) (bool, error) {
 	}
 	return false, nil
 }
-
-// CheckProgress checks the progress of the action.
-// Returns true if the action is completely finished, false otherwise.
-func (a *renewTLSCertificateAction) CheckProgress(ctx context.Context) (bool, bool, error) {
-	return true, false, nil
-}
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *renewTLSCertificateAction) Timeout() time.Duration {
-	return renewTLSCertificateTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *renewTLSCertificateAction) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_rotate_member.go

@@ -24,27 +24,29 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewRotateMemberAction creates a new Action that implements the given
+func init() {
-// planned RotateMember action.
+	registerAction(api.ActionTypeRotateMember, newRotateMemberAction)
-func NewRotateMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionRotateMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRotateMemberAction creates a new Action that implements the given
+// planned RotateMember action.
+func newRotateMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionRotateMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, rotateMemberTimeout)
+
+	return a
 }
 
 // actionRotateMember implements an RotateMember.
 type actionRotateMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -123,13 +125,3 @@ func (a *actionRotateMember) CheckProgress(ctx context.Context) (bool, bool, err
 	}
 	return true, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionRotateMember) Timeout() time.Duration {
-	return rotateMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionRotateMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_rotate_start_member.go

@@ -24,27 +24,29 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewRotateStartMemberAction creates a new Action that implements the given
+func init() {
-// planned RotateStartMember action.
+	registerAction(api.ActionTypeRotateStartMember, newRotateStartMemberAction)
-func NewRotateStartMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionRotateStartMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRotateStartMemberAction creates a new Action that implements the given
+// planned RotateStartMember action.
+func newRotateStartMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionRotateStartMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, rotateMemberTimeout)
+
+	return a
 }
 
 // actionRotateStartMember implements an RotateStartMember.
 type actionRotateStartMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -116,13 +118,3 @@ func (a *actionRotateStartMember) CheckProgress(ctx context.Context) (bool, bool
 	}
 	return true, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionRotateStartMember) Timeout() time.Duration {
-	return rotateMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionRotateStartMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_rotate_stop_member.go

@@ -24,27 +24,32 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewRotateStopMemberAction creates a new Action that implements the given
+func init() {
-// planned RotateStopMember action.
+	registerAction(api.ActionTypeRotateStopMember, newRotateStopMemberAction)
-func NewRotateStopMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionRotateStopMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newRotateStopMemberAction creates a new Action that implements the given
+// planned RotateStopMember action.
+func newRotateStopMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionRotateStopMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, rotateMemberTimeout)
+
+	return a
 }
 
 // actionRotateStopMember implements an RotateStopMember.
 type actionRotateStopMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
+
+	// actionEmptyCheckProgress implement check progress with empty implementation
+	actionEmptyCheckProgress
 }
 
 // Start performs the start of the action.
@@ -65,19 +70,3 @@ func (a *actionRotateStopMember) Start(ctx context.Context) (bool, error) {
 	}
 	return false, nil
 }
-
-// CheckProgress checks the progress of the action.
-// Returns: ready, abort, error.
-func (a *actionRotateStopMember) CheckProgress(ctx context.Context) (bool, bool, error) {
-	return true, false, nil
-}
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionRotateStopMember) Timeout() time.Duration {
-	return rotateMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionRotateStopMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_shutdown_member.go

@@ -24,31 +24,29 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-const (
+func init() {
-	shutdownTimeout = time.Second * 15
+	registerAction(api.ActionTypeShutdownMember, newShutdownMemberAction)
-)
-
-// NewShutdownMemberAction creates a new Action that implements the given
-// planned ShutdownMember action.
-func NewShutdownMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionShutdownMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newShutdownMemberAction creates a new Action that implements the given
+// planned ShutdownMember action.
+func newShutdownMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionShutdownMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, shutdownMemberTimeout)
+
+	return a
 }
 
 // actionShutdownMember implements an ShutdownMemberAction.
 type actionShutdownMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -115,13 +113,3 @@ func (a *actionShutdownMember) CheckProgress(ctx context.Context) (bool, bool, e
 	// Member still not shutdown, retry soon
 	return false, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionShutdownMember) Timeout() time.Duration {
-	return shutdownMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionShutdownMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_upgrade_current_image.go

@@ -24,27 +24,29 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewSetCurrentImageAction creates a new Action that implements the given
+func init() {
-// planned SetCurrentImage action.
+	registerAction(api.ActionTypeSetCurrentImage, newSetCurrentImageAction)
-func NewSetCurrentImageAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &setCurrentImageAction{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newSetCurrentImageAction creates a new Action that implements the given
+// planned SetCurrentImage action.
+func newSetCurrentImageAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &setCurrentImageAction{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, upgradeMemberTimeout)
+
+	return a
 }
 
 // setCurrentImageAction implements an SetCurrentImage.
 type setCurrentImageAction struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -73,13 +75,3 @@ func (a *setCurrentImageAction) CheckProgress(ctx context.Context) (bool, bool,
 	log.Info().Str("image", a.action.Image).Msg("Changed current image")
 	return true, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *setCurrentImageAction) Timeout() time.Duration {
-	return upgradeMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *setCurrentImageAction) MemberID() string {
-	return ""
-}

pkg/deployment/reconcile/action_upgrade_member.go

@@ -24,27 +24,29 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 	"github.com/rs/zerolog"
 )
 
-// NewUpgradeMemberAction creates a new Action that implements the given
+func init() {
-// planned UpgradeMember action.
+	registerAction(api.ActionTypeUpgradeMember, newUpgradeMemberAction)
-func NewUpgradeMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionUpgradeMember{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newUpgradeMemberAction creates a new Action that implements the given
+// planned UpgradeMember action.
+func newUpgradeMemberAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionUpgradeMember{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, upgradeMemberTimeout)
+
+	return a
 }
 
 // actionUpgradeMember implements an UpgradeMember.
 type actionUpgradeMember struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -128,13 +130,3 @@ func (a *actionUpgradeMember) CheckProgress(ctx context.Context) (bool, bool, er
 	}
 	return isUpgrading, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionUpgradeMember) Timeout() time.Duration {
-	return upgradeMemberTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionUpgradeMember) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/action_wait_for_member_up.go

@@ -24,7 +24,6 @@ package reconcile
 
 import (
 	"context"
-	"time"
 
 	driver "github.com/arangodb/go-driver"
 	"github.com/arangodb/go-driver/agency"
@@ -34,21 +33,24 @@ import (
 	api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
 )
 
-// NewWaitForMemberUpAction creates a new Action that implements the given
+func init() {
-// planned WaitForMemberUp action.
+	registerAction(api.ActionTypeWaitForMemberUp, newWaitForMemberUpAction)
-func NewWaitForMemberUpAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
-	return &actionWaitForMemberUp{
-		log:       log,
-		action:    action,
-		actionCtx: actionCtx,
 }
+
+// newWaitForMemberUpAction creates a new Action that implements the given
+// planned WaitForMemberUp action.
+func newWaitForMemberUpAction(log zerolog.Logger, action api.Action, actionCtx ActionContext) Action {
+	a := &actionWaitForMemberUp{}
+
+	a.actionImpl = newActionImplDefRef(log, action, actionCtx, waitForMemberUpTimeout)
+
+	return a
 }
 
 // actionWaitForMemberUp implements an WaitForMemberUp.
 type actionWaitForMemberUp struct {
-	log       zerolog.Logger
+	// actionImpl implement timeout and member id functions
-	action    api.Action
+	actionImpl
-	actionCtx ActionContext
 }
 
 // Start performs the start of the action.
@@ -189,13 +191,3 @@ func (a *actionWaitForMemberUp) checkProgressArangoSync(ctx context.Context) (bo
 	}
 	return true, false, nil
 }
-
-// Timeout returns the amount of time after which this action will timeout.
-func (a *actionWaitForMemberUp) Timeout() time.Duration {
-	return waitForMemberUpTimeout
-}
-
-// Return the MemberID used / created in this action
-func (a *actionWaitForMemberUp) MemberID() string {
-	return a.action.MemberID
-}

pkg/deployment/reconcile/context.go

@@ -116,4 +116,6 @@ type Context interface {
 	RenderPodForMember(spec api.DeploymentSpec, status api.DeploymentStatus, memberID string, imageInfo api.ImageInfo) (*v1.Pod, error)
 	// SelectImage select currently used image by pod
 	SelectImage(spec api.DeploymentSpec, status api.DeploymentStatus) (api.ImageInfo, bool)
+	// WithStatusUpdate update status of ArangoDeployment with defined modifier. If action returns True action is taken
+	WithStatusUpdate(action func(s *api.DeploymentStatus) bool, force ...bool) error
 }

pkg/deployment/reconcile/plan_builder_test.go

@@ -44,6 +44,7 @@ import (
 )
 
 var _ PlanBuilderContext = &testContext{}
+var _ Context = &testContext{}
 
 type testContext struct {
 	Pods             []core.Pod
@@ -54,6 +55,10 @@ type testContext struct {
 	RecordedEvent    *k8sutil.Event
 }
 
+func (c *testContext) WithStatusUpdate(action func(s *api.DeploymentStatus) bool, force ...bool) error {
+	panic("implement me")
+}
+
 func (c *testContext) RenderPodForMember(spec api.DeploymentSpec, status api.DeploymentStatus, memberID string, imageInfo api.ImageInfo) (*core.Pod, error) {
 	panic("implement me")
 }

pkg/deployment/reconcile/plan_executor.go

@@ -157,47 +157,14 @@ func (d *Reconciler) ExecutePlan(ctx context.Context) (bool, error) {
 	}
 }
 
-// startAction performs the start of the given action
+// createAction create action object based on action type
-// Returns true if the action is completely finished, false in case
-// the start time needs to be recorded and a ready condition needs to be checked.
 func (d *Reconciler) createAction(ctx context.Context, log zerolog.Logger, action api.Action) Action {
 	actionCtx := newActionContext(log, d.context)
-	switch action.Type {
+
-	case api.ActionTypeAddMember:
+	f, ok := getActionFactory(action.Type)
-		return NewAddMemberAction(log, action, actionCtx)
+	if !ok {
-	case api.ActionTypeRemoveMember:
-		return NewRemoveMemberAction(log, action, actionCtx)
-	case api.ActionTypeRecreateMember:
-		return NewRecreateMemberAction(log, action, actionCtx)
-	case api.ActionTypeCleanOutMember:
-		return NewCleanOutMemberAction(log, action, actionCtx)
-	case api.ActionTypeShutdownMember:
-		return NewShutdownMemberAction(log, action, actionCtx)
-	case api.ActionTypeRotateMember:
-		return NewRotateMemberAction(log, action, actionCtx)
-	case api.ActionTypeRotateStartMember:
-		return NewRotateStartMemberAction(log, action, actionCtx)
-	case api.ActionTypeRotateStopMember:
-		return NewRotateStopMemberAction(log, action, actionCtx)
-	case api.ActionTypeUpgradeMember:
-		return NewUpgradeMemberAction(log, action, actionCtx)
-	case api.ActionTypeWaitForMemberUp:
-		return NewWaitForMemberUpAction(log, action, actionCtx)
-	case api.ActionTypeRenewTLSCertificate:
-		return NewRenewTLSCertificateAction(log, action, actionCtx)
-	case api.ActionTypeRenewTLSCACertificate:
-		return NewRenewTLSCACertificateAction(log, action, actionCtx)
-	case api.ActionTypeSetCurrentImage:
-		return NewSetCurrentImageAction(log, action, actionCtx)
-	case api.ActionTypeDisableClusterScaling:
-		return NewDisableScalingCluster(log, action, actionCtx)
-	case api.ActionTypeEnableClusterScaling:
-		return NewEnableScalingCluster(log, action, actionCtx)
-	case api.ActionTypePVCResize:
-		return NewPVCResizeAction(log, action, actionCtx)
-	case api.ActionTypePVCResized:
-		return NewPVCResizedAction(log, action, actionCtx)
-	default:
 		panic(fmt.Sprintf("Unknown action type '%s'", action.Type))
 	}
+
+	return f(log, action, actionCtx)
 }

pkg/deployment/reconcile/timeouts.go

@@ -37,4 +37,7 @@ const (
 	shutdownMemberTimeout        = time.Minute * 30
 	upgradeMemberTimeout         = time.Hour * 6
 	waitForMemberUpTimeout       = time.Minute * 15
+	upToDateUpdateTimeout        = time.Minute
+
+	shutdownTimeout = time.Second * 15
 )

pkg/deployment/resources/context.go

@@ -92,4 +92,6 @@ type Context interface {
 	GetDatabaseClient(ctx context.Context) (driver.Client, error)
 	// GetAgency returns a connection to the entire agency.
 	GetAgency(ctx context.Context) (agency.Agency, error)
+	// WithStatusUpdate update status of ArangoDeployment with defined modifier. If action returns True action is taken
+	WithStatusUpdate(action func(s *api.DeploymentStatus) bool, force ...bool) error
 }