add service mesh controller
add service mesh metrics remove unused circle yaml fix travis misconfiguration fix travis misconfiguration fix travis misconfiguration
This commit is contained in:
jeff
519
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go
generated
vendored
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519
vendor/github.com/prometheus/client_golang/api/prometheus/v1/api.go
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vendored
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@@ -0,0 +1,519 @@
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// Copyright 2017 The Prometheus 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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//
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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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// +build go1.7
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// Package v1 provides bindings to the Prometheus HTTP API v1:
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// http://prometheus.io/docs/querying/api/
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package v1
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"strconv"
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"time"
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"github.com/prometheus/client_golang/api"
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"github.com/prometheus/common/model"
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)
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const (
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statusAPIError = 422
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apiPrefix = "/api/v1"
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epAlertManagers = apiPrefix + "/alertmanagers"
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epQuery = apiPrefix + "/query"
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epQueryRange = apiPrefix + "/query_range"
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epLabelValues = apiPrefix + "/label/:name/values"
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epSeries = apiPrefix + "/series"
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epTargets = apiPrefix + "/targets"
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epSnapshot = apiPrefix + "/admin/tsdb/snapshot"
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epDeleteSeries = apiPrefix + "/admin/tsdb/delete_series"
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epCleanTombstones = apiPrefix + "/admin/tsdb/clean_tombstones"
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epConfig = apiPrefix + "/status/config"
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epFlags = apiPrefix + "/status/flags"
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)
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// ErrorType models the different API error types.
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type ErrorType string
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// HealthStatus models the health status of a scrape target.
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type HealthStatus string
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const (
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// Possible values for ErrorType.
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ErrBadData ErrorType = "bad_data"
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ErrTimeout ErrorType = "timeout"
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ErrCanceled ErrorType = "canceled"
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ErrExec ErrorType = "execution"
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ErrBadResponse ErrorType = "bad_response"
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ErrServer ErrorType = "server_error"
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ErrClient ErrorType = "client_error"
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// Possible values for HealthStatus.
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HealthGood HealthStatus = "up"
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HealthUnknown HealthStatus = "unknown"
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HealthBad HealthStatus = "down"
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)
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// Error is an error returned by the API.
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type Error struct {
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Type ErrorType
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Msg string
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Detail string
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}
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func (e *Error) Error() string {
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return fmt.Sprintf("%s: %s", e.Type, e.Msg)
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}
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// Range represents a sliced time range.
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type Range struct {
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// The boundaries of the time range.
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Start, End time.Time
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// The maximum time between two slices within the boundaries.
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Step time.Duration
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}
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// API provides bindings for Prometheus's v1 API.
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type API interface {
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// AlertManagers returns an overview of the current state of the Prometheus alert manager discovery.
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AlertManagers(ctx context.Context) (AlertManagersResult, error)
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// CleanTombstones removes the deleted data from disk and cleans up the existing tombstones.
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CleanTombstones(ctx context.Context) error
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// Config returns the current Prometheus configuration.
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Config(ctx context.Context) (ConfigResult, error)
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// DeleteSeries deletes data for a selection of series in a time range.
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DeleteSeries(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) error
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// Flags returns the flag values that Prometheus was launched with.
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||||
Flags(ctx context.Context) (FlagsResult, error)
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||||
// LabelValues performs a query for the values of the given label.
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||||
LabelValues(ctx context.Context, label string) (model.LabelValues, error)
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||||
// Query performs a query for the given time.
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||||
Query(ctx context.Context, query string, ts time.Time) (model.Value, error)
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||||
// QueryRange performs a query for the given range.
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QueryRange(ctx context.Context, query string, r Range) (model.Value, error)
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// Series finds series by label matchers.
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Series(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) ([]model.LabelSet, error)
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// Snapshot creates a snapshot of all current data into snapshots/<datetime>-<rand>
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// under the TSDB's data directory and returns the directory as response.
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||||
Snapshot(ctx context.Context, skipHead bool) (SnapshotResult, error)
|
||||
// Targets returns an overview of the current state of the Prometheus target discovery.
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||||
Targets(ctx context.Context) (TargetsResult, error)
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||||
}
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// AlertManagersResult contains the result from querying the alertmanagers endpoint.
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type AlertManagersResult struct {
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Active []AlertManager `json:"activeAlertManagers"`
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Dropped []AlertManager `json:"droppedAlertManagers"`
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}
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// AlertManager models a configured Alert Manager.
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type AlertManager struct {
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URL string `json:"url"`
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}
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// ConfigResult contains the result from querying the config endpoint.
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type ConfigResult struct {
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YAML string `json:"yaml"`
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}
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// FlagsResult contains the result from querying the flag endpoint.
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type FlagsResult map[string]string
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// SnapshotResult contains the result from querying the snapshot endpoint.
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type SnapshotResult struct {
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Name string `json:"name"`
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}
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// TargetsResult contains the result from querying the targets endpoint.
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type TargetsResult struct {
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Active []ActiveTarget `json:"activeTargets"`
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Dropped []DroppedTarget `json:"droppedTargets"`
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}
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// ActiveTarget models an active Prometheus scrape target.
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type ActiveTarget struct {
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DiscoveredLabels model.LabelSet `json:"discoveredLabels"`
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Labels model.LabelSet `json:"labels"`
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ScrapeURL string `json:"scrapeUrl"`
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LastError string `json:"lastError"`
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LastScrape time.Time `json:"lastScrape"`
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Health HealthStatus `json:"health"`
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}
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// DroppedTarget models a dropped Prometheus scrape target.
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type DroppedTarget struct {
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DiscoveredLabels model.LabelSet `json:"discoveredLabels"`
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}
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// queryResult contains result data for a query.
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type queryResult struct {
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Type model.ValueType `json:"resultType"`
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Result interface{} `json:"result"`
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||||
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||||
// The decoded value.
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v model.Value
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}
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func (qr *queryResult) UnmarshalJSON(b []byte) error {
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v := struct {
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Type model.ValueType `json:"resultType"`
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Result json.RawMessage `json:"result"`
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}{}
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err := json.Unmarshal(b, &v)
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if err != nil {
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||||
return err
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}
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switch v.Type {
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case model.ValScalar:
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var sv model.Scalar
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err = json.Unmarshal(v.Result, &sv)
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qr.v = &sv
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case model.ValVector:
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var vv model.Vector
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err = json.Unmarshal(v.Result, &vv)
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qr.v = vv
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case model.ValMatrix:
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var mv model.Matrix
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||||
err = json.Unmarshal(v.Result, &mv)
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qr.v = mv
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default:
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err = fmt.Errorf("unexpected value type %q", v.Type)
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}
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return err
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}
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// NewAPI returns a new API for the client.
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//
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// It is safe to use the returned API from multiple goroutines.
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func NewAPI(c api.Client) API {
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return &httpAPI{client: apiClient{c}}
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}
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type httpAPI struct {
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client api.Client
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}
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func (h *httpAPI) AlertManagers(ctx context.Context) (AlertManagersResult, error) {
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u := h.client.URL(epAlertManagers, nil)
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req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
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if err != nil {
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return AlertManagersResult{}, err
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}
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_, body, err := h.client.Do(ctx, req)
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if err != nil {
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return AlertManagersResult{}, err
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}
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var res AlertManagersResult
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err = json.Unmarshal(body, &res)
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return res, err
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}
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func (h *httpAPI) CleanTombstones(ctx context.Context) error {
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u := h.client.URL(epCleanTombstones, nil)
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req, err := http.NewRequest(http.MethodPost, u.String(), nil)
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if err != nil {
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return err
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}
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_, _, err = h.client.Do(ctx, req)
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return err
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}
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func (h *httpAPI) Config(ctx context.Context) (ConfigResult, error) {
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u := h.client.URL(epConfig, nil)
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req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
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if err != nil {
|
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return ConfigResult{}, err
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}
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|
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_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return ConfigResult{}, err
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}
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|
||||
var res ConfigResult
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||||
err = json.Unmarshal(body, &res)
|
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return res, err
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}
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|
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func (h *httpAPI) DeleteSeries(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) error {
|
||||
u := h.client.URL(epDeleteSeries, nil)
|
||||
q := u.Query()
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|
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for _, m := range matches {
|
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q.Add("match[]", m)
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}
|
||||
|
||||
q.Set("start", startTime.Format(time.RFC3339Nano))
|
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q.Set("end", endTime.Format(time.RFC3339Nano))
|
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|
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u.RawQuery = q.Encode()
|
||||
|
||||
req, err := http.NewRequest(http.MethodPost, u.String(), nil)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, _, err = h.client.Do(ctx, req)
|
||||
return err
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||||
}
|
||||
|
||||
func (h *httpAPI) Flags(ctx context.Context) (FlagsResult, error) {
|
||||
u := h.client.URL(epFlags, nil)
|
||||
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return FlagsResult{}, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return FlagsResult{}, err
|
||||
}
|
||||
|
||||
var res FlagsResult
|
||||
err = json.Unmarshal(body, &res)
|
||||
return res, err
|
||||
}
|
||||
|
||||
func (h *httpAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
|
||||
u := h.client.URL(epLabelValues, map[string]string{"name": label})
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var labelValues model.LabelValues
|
||||
err = json.Unmarshal(body, &labelValues)
|
||||
return labelValues, err
|
||||
}
|
||||
|
||||
func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) {
|
||||
u := h.client.URL(epQuery, nil)
|
||||
q := u.Query()
|
||||
|
||||
q.Set("query", query)
|
||||
if !ts.IsZero() {
|
||||
q.Set("time", ts.Format(time.RFC3339Nano))
|
||||
}
|
||||
|
||||
u.RawQuery = q.Encode()
|
||||
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var qres queryResult
|
||||
err = json.Unmarshal(body, &qres)
|
||||
|
||||
return model.Value(qres.v), err
|
||||
}
|
||||
|
||||
func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.Value, error) {
|
||||
u := h.client.URL(epQueryRange, nil)
|
||||
q := u.Query()
|
||||
|
||||
var (
|
||||
start = r.Start.Format(time.RFC3339Nano)
|
||||
end = r.End.Format(time.RFC3339Nano)
|
||||
step = strconv.FormatFloat(r.Step.Seconds(), 'f', 3, 64)
|
||||
)
|
||||
|
||||
q.Set("query", query)
|
||||
q.Set("start", start)
|
||||
q.Set("end", end)
|
||||
q.Set("step", step)
|
||||
|
||||
u.RawQuery = q.Encode()
|
||||
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var qres queryResult
|
||||
err = json.Unmarshal(body, &qres)
|
||||
|
||||
return model.Value(qres.v), err
|
||||
}
|
||||
|
||||
func (h *httpAPI) Series(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) ([]model.LabelSet, error) {
|
||||
u := h.client.URL(epSeries, nil)
|
||||
q := u.Query()
|
||||
|
||||
for _, m := range matches {
|
||||
q.Add("match[]", m)
|
||||
}
|
||||
|
||||
q.Set("start", startTime.Format(time.RFC3339Nano))
|
||||
q.Set("end", endTime.Format(time.RFC3339Nano))
|
||||
|
||||
u.RawQuery = q.Encode()
|
||||
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var mset []model.LabelSet
|
||||
err = json.Unmarshal(body, &mset)
|
||||
return mset, err
|
||||
}
|
||||
|
||||
func (h *httpAPI) Snapshot(ctx context.Context, skipHead bool) (SnapshotResult, error) {
|
||||
u := h.client.URL(epSnapshot, nil)
|
||||
q := u.Query()
|
||||
|
||||
q.Set("skip_head", strconv.FormatBool(skipHead))
|
||||
|
||||
u.RawQuery = q.Encode()
|
||||
|
||||
req, err := http.NewRequest(http.MethodPost, u.String(), nil)
|
||||
if err != nil {
|
||||
return SnapshotResult{}, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return SnapshotResult{}, err
|
||||
}
|
||||
|
||||
var res SnapshotResult
|
||||
err = json.Unmarshal(body, &res)
|
||||
return res, err
|
||||
}
|
||||
|
||||
func (h *httpAPI) Targets(ctx context.Context) (TargetsResult, error) {
|
||||
u := h.client.URL(epTargets, nil)
|
||||
|
||||
req, err := http.NewRequest(http.MethodGet, u.String(), nil)
|
||||
if err != nil {
|
||||
return TargetsResult{}, err
|
||||
}
|
||||
|
||||
_, body, err := h.client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return TargetsResult{}, err
|
||||
}
|
||||
|
||||
var res TargetsResult
|
||||
err = json.Unmarshal(body, &res)
|
||||
return res, err
|
||||
}
|
||||
|
||||
// apiClient wraps a regular client and processes successful API responses.
|
||||
// Successful also includes responses that errored at the API level.
|
||||
type apiClient struct {
|
||||
api.Client
|
||||
}
|
||||
|
||||
type apiResponse struct {
|
||||
Status string `json:"status"`
|
||||
Data json.RawMessage `json:"data"`
|
||||
ErrorType ErrorType `json:"errorType"`
|
||||
Error string `json:"error"`
|
||||
}
|
||||
|
||||
func apiError(code int) bool {
|
||||
// These are the codes that Prometheus sends when it returns an error.
|
||||
return code == statusAPIError || code == http.StatusBadRequest
|
||||
}
|
||||
|
||||
func errorTypeAndMsgFor(resp *http.Response) (ErrorType, string) {
|
||||
switch resp.StatusCode / 100 {
|
||||
case 4:
|
||||
return ErrClient, fmt.Sprintf("client error: %d", resp.StatusCode)
|
||||
case 5:
|
||||
return ErrServer, fmt.Sprintf("server error: %d", resp.StatusCode)
|
||||
}
|
||||
return ErrBadResponse, fmt.Sprintf("bad response code %d", resp.StatusCode)
|
||||
}
|
||||
|
||||
func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
|
||||
resp, body, err := c.Client.Do(ctx, req)
|
||||
if err != nil {
|
||||
return resp, body, err
|
||||
}
|
||||
|
||||
code := resp.StatusCode
|
||||
|
||||
if code/100 != 2 && !apiError(code) {
|
||||
errorType, errorMsg := errorTypeAndMsgFor(resp)
|
||||
return resp, body, &Error{
|
||||
Type: errorType,
|
||||
Msg: errorMsg,
|
||||
Detail: string(body),
|
||||
}
|
||||
}
|
||||
|
||||
var result apiResponse
|
||||
|
||||
if http.StatusNoContent != code {
|
||||
if err = json.Unmarshal(body, &result); err != nil {
|
||||
return resp, body, &Error{
|
||||
Type: ErrBadResponse,
|
||||
Msg: err.Error(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if apiError(code) != (result.Status == "error") {
|
||||
err = &Error{
|
||||
Type: ErrBadResponse,
|
||||
Msg: "inconsistent body for response code",
|
||||
}
|
||||
}
|
||||
|
||||
if apiError(code) && result.Status == "error" {
|
||||
err = &Error{
|
||||
Type: result.ErrorType,
|
||||
Msg: result.Error,
|
||||
}
|
||||
}
|
||||
|
||||
return resp, []byte(result.Data), err
|
||||
}
|
||||
Reference in New Issue
Block a user