mirror of https://github.com/k3s-io/k3s
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package registry
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import (
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"fmt"
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"net/http"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/health"
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"github.com/golang/glog"
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)
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type HealthyMinionRegistry struct {
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delegate MinionRegistry
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client health.HTTPGetInterface
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port int
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}
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func NewHealthyMinionRegistry(delegate MinionRegistry, client *http.Client) MinionRegistry {
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return &HealthyMinionRegistry{
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delegate: delegate,
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client: client,
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port: 10250,
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}
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}
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func (h *HealthyMinionRegistry) makeMinionURL(minion string) string {
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return fmt.Sprintf("http://%s:%d/healthz", minion, h.port)
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}
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func (h *HealthyMinionRegistry) List() (currentMinions []string, err error) {
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var result []string
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list, err := h.delegate.List()
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if err != nil {
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return result, err
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}
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for _, minion := range list {
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status, err := health.Check(h.makeMinionURL(minion), h.client)
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if err != nil {
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glog.Errorf("%s failed health check with error: %s", minion, err)
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continue
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}
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if status == health.Healthy {
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result = append(result, minion)
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}
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}
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return result, nil
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}
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func (h *HealthyMinionRegistry) Insert(minion string) error {
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return h.delegate.Insert(minion)
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}
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func (h *HealthyMinionRegistry) Delete(minion string) error {
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return h.delegate.Delete(minion)
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}
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func (h *HealthyMinionRegistry) Contains(minion string) (bool, error) {
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contains, err := h.delegate.Contains(minion)
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if err != nil {
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return false, err
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}
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if !contains {
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return false, nil
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}
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status, err := health.Check(h.makeMinionURL(minion), h.client)
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if err != nil {
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return false, err
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}
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if status == health.Unhealthy {
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return false, nil
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}
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return true, nil
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}
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