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/
status.go
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/
status.go
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/*
Copyright 2017 The Kubernetes Authors.
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 kops
import (
"github.com/golang/glog"
)
// StatusStore abstracts the key status functions; and lets us introduce status gradually
type StatusStore interface {
// FindClusterStatus discovers the status of the cluster, by inspecting the cloud objects
FindClusterStatus(cluster *Cluster) (*ClusterStatus, error)
GetApiIngressStatus(cluster *Cluster) ([]ApiIngressStatus, error)
}
type ClusterStatus struct {
// EtcdClusters stores the status for each cluster
EtcdClusters []EtcdClusterStatus `json:"etcdClusters,omitempty"`
}
// EtcdStatus represents the status of etcd: because etcd only allows limited reconfiguration, we have to block changes once etcd has been initialized.
type EtcdClusterStatus struct {
// Name is the name of the etcd cluster (main, events etc)
Name string `json:"name,omitempty"`
// EtcdMember stores the configurations for each member of the cluster (including the data volume)
Members []*EtcdMemberStatus `json:"etcdMembers,omitempty"`
}
type EtcdMemberStatus struct {
// Name is the name of the member within the etcd cluster
Name string `json:"name,omitempty"`
// volumeId is the id of the cloud volume (e.g. the AWS volume id)
VolumeId string `json:"volumeId,omitempty"`
}
// ApiIngress represents the status of an ingress point:
// traffic intended for the service should be sent to an ingress point.
type ApiIngressStatus struct {
// IP is set for load-balancer ingress points that are IP based
// (typically GCE or OpenStack load-balancers)
// +optional
IP string `json:"ip,omitempty" protobuf:"bytes,1,opt,name=ip"`
// Hostname is set for load-balancer ingress points that are DNS based
// (typically AWS load-balancers)
// +optional
Hostname string `json:"hostname,omitempty" protobuf:"bytes,2,opt,name=hostname"`
}
// NoopStatusStore is a stub implementation that returns empty status
// It is a temporary hackaround while we introduce status
type NoopStatusStore struct {
}
var _ StatusStore = &NoopStatusStore{}
// FindClusterStatus discovers the status of the cluster, by inspecting the cloud objects
func (s *NoopStatusStore) FindClusterStatus(cluster *Cluster) (*ClusterStatus, error) {
glog.Warningf("FindClusterStatus called on NoopStore")
return nil, nil
}
func (s *NoopStatusStore) GetApiIngressStatus(cluster *Cluster) ([]ApiIngressStatus, error) {
glog.Warningf("GetApiIngressStatus called on NoopStore")
return nil, nil
}