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migmigration_types.go
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/
migmigration_types.go
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/*
Copyright 2019 Red Hat Inc.
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.
*/
package v1alpha1
import (
kapi "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sclient "sigs.k8s.io/controller-runtime/pkg/client"
)
// Cache Indexes.
const (
PlanIndexField = "MigPlanRef"
)
// MigMigrationSpec defines the desired state of MigMigration
type MigMigrationSpec struct {
MigPlanRef *kapi.ObjectReference `json:"migPlanRef,omitempty"`
// Invokes the stage operation, when set to true the migration controller switches to stage itinerary. This is a required field.
Stage bool `json:"stage"`
// Invokes the state migration operation
MigrateState bool `json:"migrateState,omitempty"`
// Specifies whether to quiesce the application Pods before migrating Persistent Volume data.
QuiescePods bool `json:"quiescePods,omitempty"`
// Specifies whether to retain the annotations set by the migration controller or not.
KeepAnnotations bool `json:"keepAnnotations,omitempty"`
// Specifies whether to verify the health of the migrated pods or not.
Verify bool `json:"verify,omitempty"`
// Invokes the cancel migration operation, when set to true the migration controller switches to cancel itinerary. This field can be used on-demand to cancel the running migration.
Canceled bool `json:"canceled,omitempty"`
// Invokes the rollback migration operation, when set to true the migration controller switches to rollback itinerary. This field needs to be set prior to creation of a MigMigration.
Rollback bool `json:"rollback,omitempty"`
// If set True, run rsync operations with escalated privileged, takes precedence over setting RunAsUser and RunAsGroup
RunAsRoot *bool `json:"runAsRoot,omitempty"`
// If set, runs rsync operations with provided user id. This provided user id should be a valid one that falls within the range of allowed UID of user namespace
RunAsUser *int64 `json:"runAsUser,omitempty"`
// If set, runs rsync operations with provided group id. This provided user id should be a valid one that falls within the range of allowed GID of user namespace
RunAsGroup *int64 `json:"runAsGroup,omitempty"`
}
// MigMigrationStatus defines the observed state of MigMigration
type MigMigrationStatus struct {
Conditions `json:",inline"`
UnhealthyResources `json:",inline"`
ObservedDigest string `json:"observedDigest,omitempty"`
StartTimestamp *metav1.Time `json:"startTimestamp,omitempty"`
Phase string `json:"phase,omitempty"`
Pipeline []*Step `json:"pipeline,omitempty"`
Itinerary string `json:"itinerary,omitempty"`
Errors []string `json:"errors,omitempty"`
}
// FindStep find step by name
func (s *MigMigrationStatus) FindStep(stepName string) *Step {
for _, step := range s.Pipeline {
if step.Name == stepName {
return step
}
}
return nil
}
// AddStep adds a new step to the pipeline
func (s *MigMigrationStatus) AddStep(step *Step) {
found := s.FindStep(step.Name)
if found == nil {
s.Pipeline = append(
s.Pipeline,
step,
)
}
}
// ReflectPipeline reflects pipeline
func (s *MigMigrationStatus) ReflectPipeline() {
for _, step := range s.Pipeline {
if step.MarkedCompleted() {
step.Phase = ""
step.Message = "Completed"
}
if step.Failed {
step.Message = "Failed"
}
if step.Skipped {
step.Message = "Skipped"
}
}
}
// Step defines a task in a step of migration
type Step struct {
Timed `json:",inline"`
Name string `json:"name"`
Phase string `json:"phase,omitempty"`
Message string `json:"message,omitempty"`
Progress []string `json:"progress,omitempty"`
Failed bool `json:"failed,omitempty"`
Skipped bool `json:"skipped,omitempty"`
}
// +genclient
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// MigMigration is the Schema for the migmigrations API
// +k8s:openapi-gen=true
// +kubebuilder:printcolumn:name="Ready",type=string,JSONPath=".status.conditions[?(@.type=='Ready')].status"
// +kubebuilder:printcolumn:name="Plan",type=string,JSONPath=".spec.migPlanRef.name"
// +kubebuilder:printcolumn:name="Stage",type=string,JSONPath=".spec.stage"
// +kubebuilder:printcolumn:name="Rollback",type=string,JSONPath=".spec.rollback"
// +kubebuilder:printcolumn:name="Itinerary",type=string,JSONPath=".status.itinerary"
// +kubebuilder:printcolumn:name="Phase",type=string,JSONPath=".status.phase"
// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp"
type MigMigration struct {
metav1.TypeMeta `json:",inline"`
metav1.ObjectMeta `json:"metadata,omitempty"`
Spec MigMigrationSpec `json:"spec,omitempty"`
Status MigMigrationStatus `json:"status,omitempty"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// MigMigrationList contains a list of MigMigration
type MigMigrationList struct {
metav1.TypeMeta `json:",inline"`
metav1.ListMeta `json:"metadata,omitempty"`
Items []MigMigration `json:"items"`
}
func init() {
SchemeBuilder.Register(&MigMigration{}, &MigMigrationList{})
}
// GetPlan - Get the migration plan.
// Returns `nil` when the reference cannot be resolved.
func (r *MigMigration) GetPlan(client k8sclient.Client) (*MigPlan, error) {
return GetPlan(client, r.Spec.MigPlanRef)
}
// Add (de-duplicated) errors.
func (r *MigMigration) AddErrors(errors []string) {
m := map[string]bool{}
for _, e := range r.Status.Errors {
m[e] = true
}
for _, error := range errors {
_, found := m[error]
if !found {
r.Status.Errors = append(r.Status.Errors, error)
}
}
}
// HasErrors will notify about error presence on the MigMigration resource
func (r *MigMigration) HasErrors() bool {
return len(r.Status.Errors) > 0
}
// IsStateMigration checks whether state migration annotation is present
func (r *MigMigration) IsStateMigration() bool {
if _, exists := r.Annotations[StateMigrationAnnotation]; exists {
return true
}
return false
}