mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2024-09-20 11:27:26 +02:00
122 lines
3.1 KiB
Go
122 lines
3.1 KiB
Go
package metricdata
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"os"
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"time"
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"github.com/ClusterCockpit/cc-jobarchive/config"
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"github.com/ClusterCockpit/cc-jobarchive/graph/model"
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"github.com/ClusterCockpit/cc-jobarchive/schema"
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)
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type CCMetricStore struct {
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jwt string
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url string
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client http.Client
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}
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type ApiRequestBody struct {
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Metrics []string `json:"metrics"`
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Selectors [][]string `json:"selectors"`
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}
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type ApiMetricData struct {
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Error *string `json:"error"`
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From int64 `json:"from"`
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To int64 `json:"to"`
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Data []schema.Float `json:"data"`
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Avg *float64 `json:"avg"`
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Min *float64 `json:"min"`
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Max *float64 `json:"max"`
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}
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type ApiStatsData struct {
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Error *string `json:"error"`
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From int64 `json:"from"`
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To int64 `json:"to"`
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Samples int `json:"samples"`
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Avg schema.Float `json:"avg"`
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Min schema.Float `json:"min"`
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Max schema.Float `json:"max"`
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}
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func (ccms *CCMetricStore) Init() error {
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ccms.url = os.Getenv("CCMETRICSTORE_URL")
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ccms.jwt = os.Getenv("CCMETRICSTORE_JWT")
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if ccms.url == "" || ccms.jwt == "" {
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return errors.New("environment variables 'CCMETRICSTORE_URL' or 'CCMETRICSTORE_JWT' not set")
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}
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return nil
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}
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func (ccms *CCMetricStore) LoadData(job *model.Job, metrics []string, ctx context.Context) (schema.JobData, error) {
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from, to := job.StartTime.Unix(), job.StartTime.Add(time.Duration(job.Duration)*time.Second).Unix()
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reqBody := ApiRequestBody{}
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reqBody.Metrics = metrics
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for _, node := range job.Nodes {
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reqBody.Selectors = append(reqBody.Selectors, []string{job.ClusterID, node})
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}
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reqBodyBytes, err := json.Marshal(reqBody)
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if err != nil {
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return nil, err
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}
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authHeader := fmt.Sprintf("Bearer %s", ccms.jwt)
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, fmt.Sprintf("%s/api/%d/%d/timeseries?with-stats=true", ccms.url, from, to), bytes.NewReader(reqBodyBytes))
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if err != nil {
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return nil, err
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}
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req.Header.Add("Authorization", authHeader)
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res, err := ccms.client.Do(req)
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if err != nil {
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return nil, err
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}
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resdata := make([]map[string]ApiMetricData, 0, len(reqBody.Selectors))
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if err := json.NewDecoder(res.Body).Decode(&resdata); err != nil {
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return nil, err
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}
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var jobData schema.JobData = make(schema.JobData)
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for _, metric := range metrics {
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mc := config.GetMetricConfig(job.ClusterID, metric)
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metricData := &schema.JobMetric{
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Scope: "node", // TODO: FIXME: Whatever...
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Unit: mc.Unit,
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Timestep: mc.Sampletime,
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Series: make([]*schema.MetricSeries, 0, len(job.Nodes)),
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}
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for i, node := range job.Nodes {
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data := resdata[i][metric]
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if data.Error != nil {
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return nil, errors.New(*data.Error)
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}
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if data.Avg == nil || data.Min == nil || data.Max == nil {
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return nil, errors.New("no data")
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}
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metricData.Series = append(metricData.Series, &schema.MetricSeries{
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NodeID: node,
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Data: data.Data,
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Statistics: &schema.MetricStatistics{
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Avg: *data.Avg,
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Min: *data.Min,
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Max: *data.Max,
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},
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})
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}
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jobData[metric] = metricData
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}
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return jobData, nil
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}
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