mirror of
https://gitee.com/milvus-io/milvus.git
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99 lines
2.8 KiB
Go
99 lines
2.8 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package roles
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import (
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"context"
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"fmt"
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"net/http"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/proto/commonpb"
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"github.com/milvus-io/milvus/internal/util/healthz"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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)
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func unhealthyHandler(w http.ResponseWriter, r *http.Request, reason string) {
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w.WriteHeader(http.StatusInternalServerError)
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w.Header().Set(healthz.ContentTypeHeader, healthz.ContentTypeText)
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_, err := fmt.Fprint(w, reason)
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if err != nil {
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log.Warn("failed to send response",
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zap.Error(err))
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}
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}
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func healthyHandler(w http.ResponseWriter, r *http.Request) {
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var err error
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w.WriteHeader(http.StatusOK)
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w.Header().Set(healthz.ContentTypeHeader, healthz.ContentTypeText)
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_, err = fmt.Fprint(w, "OK")
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if err != nil {
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log.Warn("failed to send response",
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zap.Error(err))
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}
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}
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// GetComponentStatesInterface defines the interface that get states from component.
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type GetComponentStatesInterface interface {
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// GetComponentStates returns the states of component.
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GetComponentStates(ctx context.Context, request *internalpb.GetComponentStatesRequest) (*internalpb.ComponentStates, error)
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}
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type componentsHealthzHandler struct {
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component GetComponentStatesInterface
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}
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func (handler *componentsHealthzHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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states, err := handler.component.GetComponentStates(context.Background(), &internalpb.GetComponentStatesRequest{})
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if err != nil {
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unhealthyHandler(w, r, err.Error())
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return
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}
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if states == nil {
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unhealthyHandler(w, r, "failed to get states")
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return
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}
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if states.Status == nil {
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unhealthyHandler(w, r, "failed to get status")
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return
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}
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if states.Status.ErrorCode != commonpb.ErrorCode_Success {
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unhealthyHandler(w, r, states.Status.Reason)
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return
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}
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if states.State == nil {
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unhealthyHandler(w, r, "failed to get state")
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return
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}
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if states.State.StateCode != internalpb.StateCode_Healthy {
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unhealthyHandler(w, r, fmt.Sprintf("state: %s", states.State.StateCode.String()))
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return
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}
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healthyHandler(w, r)
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}
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