add feature: logging and monitoring
Signed-off-by: huanggze <loganhuang@yunify.com>
This commit is contained in:
huanggze
638
pkg/simple/client/elasticsearch/esclient.go
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638
pkg/simple/client/elasticsearch/esclient.go
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@@ -0,0 +1,638 @@
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/*
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Copyright 2018 The KubeSphere Authors.
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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 esclient
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/json-iterator/go"
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)
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var jsonIter = jsoniter.ConfigCompatibleWithStandardLibrary
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var (
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mu sync.RWMutex
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esConfigs *ESConfigs
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)
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type ESConfigs struct {
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Host string
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Port string
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Index string
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}
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func readESConfigs() *ESConfigs {
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mu.RLock()
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defer mu.RUnlock()
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return esConfigs
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}
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func (configs *ESConfigs) WriteESConfigs() {
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mu.Lock()
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defer mu.Unlock()
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esConfigs = configs
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}
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type Request struct {
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From int64 `json:"from"`
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Size int64 `json:"size"`
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Sorts []Sort `json:"sort,omitempty"`
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MainQuery MainQuery `json:"query"`
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Aggs interface{} `json:"aggs,omitempty"`
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MainHighLight MainHighLight `json:"highlight,omitempty"`
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}
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type Sort struct {
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Order Order `json:"time"`
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}
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type Order struct {
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Order string `json:"order"`
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}
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type MainQuery struct {
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MainBoolQuery MainBoolQuery `json:"bool"`
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}
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type MainBoolQuery struct {
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MainFilter MainFilter `json:"filter"`
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}
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type MainFilter struct {
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FilterBoolQuery FilterBoolQuery `json:"bool"`
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}
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type FilterBoolQuery struct {
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Musts []interface{} `json:"must"`
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}
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type RangeQuery struct {
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RangeSpec RangeSpec `json:"range"`
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}
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type RangeSpec struct {
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TimeRange TimeRange `json:"time"`
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}
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type TimeRange struct {
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Gte string `json:"gte,omitempty"`
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Lte string `json:"lte,omitempty"`
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}
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type BoolShouldMatchPhrase struct {
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ShouldMatchPhrase ShouldMatchPhrase `json:"bool"`
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}
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type ShouldMatchPhrase struct {
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Shoulds []interface{} `json:"should"`
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MinimumShouldMatch int64 `json:"minimum_should_match"`
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}
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type MatchPhrase struct {
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MatchPhrase interface{} `json:"match_phrase"`
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}
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type Match struct {
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Match interface{} `json:"match"`
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}
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type QueryWord struct {
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Word string `json:"query"`
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}
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type MainHighLight struct {
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Fields []interface{} `json:"fields,omitempty"`
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}
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type LogHighLightField struct {
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FieldContent EmptyField `json:"log"`
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}
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type NamespaceHighLightField struct {
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FieldContent EmptyField `json:"kubernetes.namespace_name.keyword"`
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}
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type PodHighLightField struct {
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FieldContent EmptyField `json:"kubernetes.pod_name.keyword"`
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}
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type ContainerHighLightField struct {
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FieldContent EmptyField `json:"kubernetes.container_name.keyword"`
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}
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type EmptyField struct {
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}
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type StatisticsAggs struct {
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NamespaceAgg NamespaceAgg `json:"Namespace"`
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}
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type NamespaceAgg struct {
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Terms StatisticsAggTerm `json:"terms"`
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ContainerAggs ContainerAggs `json:"aggs"`
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}
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type ContainerAggs struct {
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ContainerAgg ContainerAgg `json:"Container"`
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}
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type ContainerAgg struct {
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Terms StatisticsAggTerm `json:"terms"`
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}
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type StatisticsAggTerm struct {
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Field string `json:"field"`
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Size int64 `json:"size"`
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}
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type HistogramAggs struct {
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HistogramAgg HistogramAgg `json:"histogram"`
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}
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type HistogramAgg struct {
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DateHistogram DateHistogram `json:"date_histogram"`
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}
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type DateHistogram struct {
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Field string `json:"field"`
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Interval string `json:"interval"`
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}
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func createQueryRequest(param QueryParameters) (int, []byte, error) {
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var request Request
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var mainBoolQuery MainBoolQuery
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if param.NamespaceFilled {
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var shouldMatchPhrase ShouldMatchPhrase
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if len(param.Namespaces) == 0 {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.namespace_name.key_word": QueryWord{""}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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} else {
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for _, namespace := range param.Namespaces {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.namespace_name.keyword": QueryWord{namespace}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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}
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}
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shouldMatchPhrase.MinimumShouldMatch = 1
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, BoolShouldMatchPhrase{shouldMatchPhrase})
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}
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if param.PodFilled {
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var shouldMatchPhrase ShouldMatchPhrase
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if len(param.Pods) == 0 {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.pod_name.key_word": QueryWord{""}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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} else {
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for _, pod := range param.Pods {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.pod_name.keyword": QueryWord{pod}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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}
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}
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shouldMatchPhrase.MinimumShouldMatch = 1
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, BoolShouldMatchPhrase{shouldMatchPhrase})
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}
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if param.ContainerFilled {
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var shouldMatchPhrase ShouldMatchPhrase
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if len(param.Containers) == 0 {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.container_name.key_word": QueryWord{""}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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} else {
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for _, container := range param.Containers {
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matchPhrase := MatchPhrase{map[string]interface{}{"kubernetes.container_name.keyword": QueryWord{container}}}
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shouldMatchPhrase.Shoulds = append(shouldMatchPhrase.Shoulds, matchPhrase)
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}
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}
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shouldMatchPhrase.MinimumShouldMatch = 1
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, BoolShouldMatchPhrase{shouldMatchPhrase})
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}
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if param.NamespaceQuery != "" {
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match := Match{map[string]interface{}{"kubernetes.namespace_name": QueryWord{param.NamespaceQuery}}}
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, match)
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}
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if param.PodQuery != "" {
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match := Match{map[string]interface{}{"kubernetes.pod_name": QueryWord{param.PodQuery}}}
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, match)
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}
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if param.ContainerQuery != "" {
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match := Match{map[string]interface{}{"kubernetes.container_name": QueryWord{param.ContainerQuery}}}
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, match)
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}
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if param.LogQuery != "" {
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match := Match{map[string]interface{}{"log": QueryWord{param.LogQuery}}}
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, match)
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}
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rangeQuery := RangeQuery{RangeSpec{TimeRange{param.StartTime, param.EndTime}}}
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mainBoolQuery.MainFilter.FilterBoolQuery.Musts = append(mainBoolQuery.MainFilter.FilterBoolQuery.Musts, rangeQuery)
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var operation int
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if param.Operation == "statistics" {
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operation = OperationStatistics
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containerAggs := ContainerAggs{ContainerAgg{StatisticsAggTerm{"kubernetes.container_name.keyword", 2147483647}}}
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namespaceAgg := NamespaceAgg{StatisticsAggTerm{"kubernetes.namespace_name.keyword", 2147483647}, containerAggs}
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request.Aggs = StatisticsAggs{namespaceAgg}
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request.Size = 0
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} else if param.Operation == "histogram" {
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operation = OperationHistogram
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var interval string
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if param.Interval != "" {
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interval = param.Interval
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} else {
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interval = "15m"
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}
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param.Interval = interval
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request.Aggs = HistogramAggs{HistogramAgg{DateHistogram{"time", interval}}}
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request.Size = 0
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} else {
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operation = OperationQuery
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request.From = param.From
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request.Size = param.Size
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var order string
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if strings.Compare(strings.ToLower(param.Sort), "asc") == 0 {
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order = "asc"
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} else {
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order = "desc"
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}
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request.Sorts = append(request.Sorts, Sort{Order{order}})
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var mainHighLight MainHighLight
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mainHighLight.Fields = append(mainHighLight.Fields, LogHighLightField{})
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mainHighLight.Fields = append(mainHighLight.Fields, NamespaceHighLightField{})
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mainHighLight.Fields = append(mainHighLight.Fields, PodHighLightField{})
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mainHighLight.Fields = append(mainHighLight.Fields, ContainerHighLightField{})
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request.MainHighLight = mainHighLight
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}
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request.MainQuery = MainQuery{mainBoolQuery}
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queryRequest, err := json.Marshal(request)
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return operation, queryRequest, err
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}
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type Response struct {
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Status int `json:"status"`
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Workspace string `json:"workspace,omitempty"`
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Shards Shards `json:"_shards"`
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Hits Hits `json:"hits"`
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Aggregations json.RawMessage `json:"aggregations"`
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}
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type Shards struct {
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Total int64 `json:"total"`
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Successful int64 `json:"successful"`
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Skipped int64 `json:"skipped"`
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Failed int64 `json:"failed"`
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}
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type Hits struct {
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Total int64 `json:"total"`
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Hits []Hit `json:"hits"`
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}
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type Hit struct {
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Source Source `json:"_source"`
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HighLight HighLight `json:"highlight"`
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}
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type Source struct {
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Log string `json:"log"`
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Time string `json:"time"`
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Kubernetes Kubernetes `json:"kubernetes"`
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}
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type Kubernetes struct {
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Namespace string `json:"namespace_name"`
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Pod string `json:"pod_name"`
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Container string `json:"container_name"`
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Host string `json:"host"`
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}
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type HighLight struct {
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LogHighLights []string `json:"log,omitempty"`
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NamespaceHighLights []string `json:"kubernetes.namespace_name.keyword,omitempty"`
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PodHighLights []string `json:"kubernetes.pod_name.keyword,omitempty"`
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ContainerHighLights []string `json:"kubernetes.container_name.keyword,omitempty"`
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}
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type LogRecord struct {
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Time int64 `json:"time,omitempty"`
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Log string `json:"log,omitempty"`
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Namespace string `json:"namespace,omitempty"`
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Pod string `json:"pod,omitempty"`
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Container string `json:"container,omitempty"`
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Host string `json:"host,omitempty"`
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HighLight HighLight `json:"highlight,omitempty"`
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}
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type ReadResult struct {
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Total int64 `json:"total"`
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From int64 `json:"from"`
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Size int64 `json:"size"`
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Records []LogRecord `json:"records,omitempty"`
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}
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type NamespaceAggregations struct {
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NamespaceAggregation NamespaceAggregation `json:"Namespace"`
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}
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type NamespaceAggregation struct {
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Namespaces []NamespaceStatistics `json:"buckets"`
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}
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type NamespaceStatistics struct {
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Namespace string `json:"Key"`
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Count int64 `json:"doc_count"`
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ContainerAggregation ContainerAggregation `json:"Container"`
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}
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type ContainerAggregation struct {
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Containers []ContainerStatistics `json:"buckets"`
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}
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type ContainerStatistics struct {
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Container string `json:"Key"`
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Count int64 `json:"doc_count"`
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}
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|
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type NamespaceResult struct {
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Namespace string `json:"namespace"`
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Count int64 `json:"count"`
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Containers []ContainerResult `json:"containers"`
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}
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type ContainerResult struct {
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Container string `json:"container"`
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Count int64 `json:"count"`
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}
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type StatisticsResult struct {
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Total int64 `json:"total"`
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Namespaces []NamespaceResult `json:"namespaces"`
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}
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|
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type HistogramAggregations struct {
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HistogramAggregation HistogramAggregation `json:"histogram"`
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}
|
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|
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type HistogramAggregation struct {
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Histograms []HistogramStatistics `json:"buckets"`
|
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}
|
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|
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type HistogramStatistics struct {
|
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Time int64 `json:"key"`
|
||||
Count int64 `json:"doc_count"`
|
||||
}
|
||||
|
||||
type HistogramRecord struct {
|
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Time int64 `json:"time"`
|
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Count int64 `json:"count"`
|
||||
}
|
||||
|
||||
type HistogramResult struct {
|
||||
Total int64 `json:"total"`
|
||||
StartTime int64 `json:"start_time"`
|
||||
EndTime int64 `json:"end_time"`
|
||||
Interval string `json:"interval"`
|
||||
Histograms []HistogramRecord `json:"histograms"`
|
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}
|
||||
|
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type QueryResult struct {
|
||||
Status int `json:"status,omitempty"`
|
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Workspace string `json:"workspace,omitempty"`
|
||||
Read *ReadResult `json:"query,omitempty"`
|
||||
Statistics *StatisticsResult `json:"statistics,omitempty"`
|
||||
Histogram *HistogramResult `json:"histogram,omitempty"`
|
||||
Request string `json:"request,omitempty"`
|
||||
Response string `json:"response,omitempty"`
|
||||
}
|
||||
|
||||
const (
|
||||
OperationQuery int = iota
|
||||
OperationStatistics
|
||||
OperationHistogram
|
||||
)
|
||||
|
||||
func calcTimestamp(input string) int64 {
|
||||
var t time.Time
|
||||
var err error
|
||||
var ret int64
|
||||
|
||||
ret = 0
|
||||
|
||||
t, err = time.Parse(time.RFC3339, input)
|
||||
if err != nil {
|
||||
var i int64
|
||||
i, err = strconv.ParseInt(input, 10, 64)
|
||||
if err == nil {
|
||||
ret = time.Unix(i/1000, (i%1000)*1000000).UnixNano() / 1000000
|
||||
}
|
||||
} else {
|
||||
ret = t.UnixNano() / 1000000
|
||||
}
|
||||
|
||||
return ret
|
||||
}
|
||||
|
||||
func parseQueryResult(operation int, param QueryParameters, body []byte, query []byte) *QueryResult {
|
||||
var queryResult QueryResult
|
||||
//queryResult.Request = string(query)
|
||||
//queryResult.Response = string(body)
|
||||
|
||||
var response Response
|
||||
err := jsonIter.Unmarshal(body, &response)
|
||||
if err != nil {
|
||||
//fmt.Println("Parse response error ", err.Error())
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return &queryResult
|
||||
}
|
||||
|
||||
if response.Status != 0 {
|
||||
//Elastic error, eg, es_rejected_execute_exception
|
||||
queryResult.Status = response.Status
|
||||
return &queryResult
|
||||
}
|
||||
|
||||
if response.Shards.Successful != response.Shards.Total {
|
||||
//Elastic some shards error
|
||||
queryResult.Status = http.StatusInternalServerError
|
||||
return &queryResult
|
||||
}
|
||||
|
||||
switch operation {
|
||||
case OperationQuery:
|
||||
var readResult ReadResult
|
||||
readResult.Total = response.Hits.Total
|
||||
readResult.From = param.From
|
||||
readResult.Size = param.Size
|
||||
for _, hit := range response.Hits.Hits {
|
||||
var logRecord LogRecord
|
||||
logRecord.Time = calcTimestamp(hit.Source.Time)
|
||||
logRecord.Log = hit.Source.Log
|
||||
logRecord.Namespace = hit.Source.Kubernetes.Namespace
|
||||
logRecord.Pod = hit.Source.Kubernetes.Pod
|
||||
logRecord.Container = hit.Source.Kubernetes.Container
|
||||
logRecord.Host = hit.Source.Kubernetes.Host
|
||||
logRecord.HighLight = hit.HighLight
|
||||
readResult.Records = append(readResult.Records, logRecord)
|
||||
}
|
||||
queryResult.Read = &readResult
|
||||
|
||||
case OperationStatistics:
|
||||
var statisticsResult StatisticsResult
|
||||
statisticsResult.Total = response.Hits.Total
|
||||
|
||||
var namespaceAggregations NamespaceAggregations
|
||||
jsonIter.Unmarshal(response.Aggregations, &namespaceAggregations)
|
||||
|
||||
for _, namespace := range namespaceAggregations.NamespaceAggregation.Namespaces {
|
||||
var namespaceResult NamespaceResult
|
||||
namespaceResult.Namespace = namespace.Namespace
|
||||
namespaceResult.Count = namespace.Count
|
||||
|
||||
for _, container := range namespace.ContainerAggregation.Containers {
|
||||
var containerResult ContainerResult
|
||||
containerResult.Container = container.Container
|
||||
containerResult.Count = container.Count
|
||||
namespaceResult.Containers = append(namespaceResult.Containers, containerResult)
|
||||
}
|
||||
|
||||
statisticsResult.Namespaces = append(statisticsResult.Namespaces, namespaceResult)
|
||||
}
|
||||
|
||||
queryResult.Statistics = &statisticsResult
|
||||
|
||||
case OperationHistogram:
|
||||
var histogramResult HistogramResult
|
||||
histogramResult.Total = response.Hits.Total
|
||||
histogramResult.StartTime = calcTimestamp(param.StartTime)
|
||||
histogramResult.EndTime = calcTimestamp(param.EndTime)
|
||||
histogramResult.Interval = param.Interval
|
||||
|
||||
var histogramAggregations HistogramAggregations
|
||||
jsonIter.Unmarshal(response.Aggregations, &histogramAggregations)
|
||||
for _, histogram := range histogramAggregations.HistogramAggregation.Histograms {
|
||||
var histogramRecord HistogramRecord
|
||||
histogramRecord.Time = histogram.Time
|
||||
histogramRecord.Count = histogram.Count
|
||||
|
||||
histogramResult.Histograms = append(histogramResult.Histograms, histogramRecord)
|
||||
}
|
||||
|
||||
queryResult.Histogram = &histogramResult
|
||||
}
|
||||
|
||||
queryResult.Status = http.StatusOK
|
||||
queryResult.Workspace = param.Workspace
|
||||
|
||||
return &queryResult
|
||||
}
|
||||
|
||||
type QueryParameters struct {
|
||||
NamespaceFilled bool
|
||||
Namespaces []string
|
||||
PodFilled bool
|
||||
Pods []string
|
||||
ContainerFilled bool
|
||||
Containers []string
|
||||
|
||||
NamespaceQuery string
|
||||
PodQuery string
|
||||
ContainerQuery string
|
||||
|
||||
Workspace string
|
||||
|
||||
Operation string
|
||||
LogQuery string
|
||||
Interval string
|
||||
StartTime string
|
||||
EndTime string
|
||||
Sort string
|
||||
From int64
|
||||
Size int64
|
||||
}
|
||||
|
||||
func stubResult() *QueryResult {
|
||||
var queryResult QueryResult
|
||||
|
||||
queryResult.Status = http.StatusOK
|
||||
|
||||
return &queryResult
|
||||
}
|
||||
|
||||
func Query(param QueryParameters) *QueryResult {
|
||||
var queryResult *QueryResult
|
||||
|
||||
//queryResult = stubResult()
|
||||
//return queryResult
|
||||
|
||||
client := &http.Client{}
|
||||
|
||||
operation, query, err := createQueryRequest(param)
|
||||
if err != nil {
|
||||
//fmt.Println("Create query error ", err.Error())
|
||||
queryResult = new(QueryResult)
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return queryResult
|
||||
}
|
||||
|
||||
es := readESConfigs()
|
||||
if es == nil {
|
||||
queryResult = new(QueryResult)
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return queryResult
|
||||
}
|
||||
|
||||
url := fmt.Sprintf("http://%s:%s/%s*/_search", es.Host, es.Port, es.Index)
|
||||
request, err := http.NewRequest("GET", url, bytes.NewBuffer(query))
|
||||
if err != nil {
|
||||
//fmt.Println("Create request error ", err.Error())
|
||||
queryResult = new(QueryResult)
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return queryResult
|
||||
}
|
||||
request.Header.Set("Content-Type", "application/json; charset=utf-8")
|
||||
|
||||
response, err := client.Do(request)
|
||||
if err != nil {
|
||||
//fmt.Println("Send request error ", err.Error())
|
||||
queryResult = new(QueryResult)
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return queryResult
|
||||
}
|
||||
defer response.Body.Close()
|
||||
|
||||
body, err := ioutil.ReadAll(response.Body)
|
||||
if err != nil {
|
||||
//fmt.Println("Read response error ", err.Error())
|
||||
queryResult = new(QueryResult)
|
||||
queryResult.Status = http.StatusNotFound
|
||||
return queryResult
|
||||
}
|
||||
|
||||
queryResult = parseQueryResult(operation, param, body, query)
|
||||
|
||||
return queryResult
|
||||
}
|
||||
Reference in New Issue
Block a user