replace dep with go modules (#16017)
- guide shamelessly stolen from prometheus/prometheus - updates local interface of oauth exchange - updates local impl of hclogger - bump jaeger client version closes #16088
This commit is contained in:
Carl Bergquist
+2
-2
@@ -30,10 +30,10 @@ import (
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// DefaultRoundTripper is used if no RoundTripper is set in Config.
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var DefaultRoundTripper http.RoundTripper = &http.Transport{
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Proxy: http.ProxyFromEnvironment,
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Dial: (&net.Dialer{
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DialContext: (&net.Dialer{
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Timeout: 30 * time.Second,
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KeepAlive: 30 * time.Second,
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}).Dial,
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}).DialContext,
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TLSHandshakeTimeout: 10 * time.Second,
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}
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+288
-30
@@ -34,28 +34,46 @@ const (
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apiPrefix = "/api/v1"
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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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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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// Possible values for ErrorType.
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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 = "timeout"
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ErrCanceled = "canceled"
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ErrExec = "execution"
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ErrBadResponse = "bad_response"
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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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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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@@ -72,12 +90,74 @@ type Range struct {
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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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// 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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// 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)
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// 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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@@ -133,16 +213,121 @@ 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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_, body, err := h.client.Do(ctx, req)
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if err != nil {
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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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func (h *httpAPI) DeleteSeries(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) error {
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u := h.client.URL(epDeleteSeries, nil)
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q := u.Query()
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for _, m := range matches {
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q.Add("match[]", m)
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}
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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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u.RawQuery = q.Encode()
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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) Flags(ctx context.Context) (FlagsResult, error) {
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u := h.client.URL(epFlags, 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 FlagsResult{}, 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 FlagsResult{}, err
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}
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var res FlagsResult
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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) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
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u := h.client.URL(epLabelValues, map[string]string{"name": label})
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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 nil, 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 nil, err
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}
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var labelValues model.LabelValues
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err = json.Unmarshal(body, &labelValues)
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return labelValues, err
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}
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func (h *httpAPI) Query(ctx context.Context, query string, ts time.Time) (model.Value, error) {
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u := h.client.URL(epQuery, nil)
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q := u.Query()
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q.Set("query", query)
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q.Set("time", ts.Format(time.RFC3339Nano))
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if !ts.IsZero() {
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q.Set("time", ts.Format(time.RFC3339Nano))
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}
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u.RawQuery = q.Encode()
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req, err := http.NewRequest("GET", u.String(), 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 nil, err
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}
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@@ -175,7 +360,7 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.
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u.RawQuery = q.Encode()
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req, err := http.NewRequest("GET", u.String(), 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 nil, err
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}
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@@ -191,19 +376,73 @@ func (h *httpAPI) QueryRange(ctx context.Context, query string, r Range) (model.
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return model.Value(qres.v), err
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}
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func (h *httpAPI) LabelValues(ctx context.Context, label string) (model.LabelValues, error) {
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u := h.client.URL(epLabelValues, map[string]string{"name": label})
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func (h *httpAPI) Series(ctx context.Context, matches []string, startTime time.Time, endTime time.Time) ([]model.LabelSet, error) {
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u := h.client.URL(epSeries, nil)
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q := u.Query()
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for _, m := range matches {
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q.Add("match[]", m)
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}
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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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u.RawQuery = q.Encode()
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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 nil, 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 nil, err
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}
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var labelValues model.LabelValues
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err = json.Unmarshal(body, &labelValues)
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return labelValues, err
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var mset []model.LabelSet
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err = json.Unmarshal(body, &mset)
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return mset, err
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}
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func (h *httpAPI) Snapshot(ctx context.Context, skipHead bool) (SnapshotResult, error) {
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u := h.client.URL(epSnapshot, nil)
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q := u.Query()
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q.Set("skip_head", strconv.FormatBool(skipHead))
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u.RawQuery = q.Encode()
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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 SnapshotResult{}, 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 SnapshotResult{}, err
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}
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var res SnapshotResult
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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) Targets(ctx context.Context) (TargetsResult, error) {
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u := h.client.URL(epTargets, 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 TargetsResult{}, 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 TargetsResult{}, err
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}
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var res TargetsResult
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err = json.Unmarshal(body, &res)
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return res, err
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}
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// apiClient wraps a regular client and processes successful API responses.
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@@ -219,6 +458,21 @@ type apiResponse struct {
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Error string `json:"error"`
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}
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func apiError(code int) bool {
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// These are the codes that Prometheus sends when it returns an error.
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return code == statusAPIError || code == http.StatusBadRequest
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}
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func errorTypeAndMsgFor(resp *http.Response) (ErrorType, string) {
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switch resp.StatusCode / 100 {
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case 4:
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return ErrClient, fmt.Sprintf("client error: %d", resp.StatusCode)
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case 5:
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return ErrServer, fmt.Sprintf("server error: %d", resp.StatusCode)
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}
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return ErrBadResponse, fmt.Sprintf("bad response code %d", resp.StatusCode)
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}
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func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
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resp, body, err := c.Client.Do(ctx, req)
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if err != nil {
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@@ -227,30 +481,34 @@ func (c apiClient) Do(ctx context.Context, req *http.Request) (*http.Response, [
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code := resp.StatusCode
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if code/100 != 2 && code != statusAPIError {
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if code/100 != 2 && !apiError(code) {
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errorType, errorMsg := errorTypeAndMsgFor(resp)
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return resp, body, &Error{
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Type: ErrBadResponse,
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Msg: fmt.Sprintf("bad response code %d", resp.StatusCode),
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Type: errorType,
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Msg: errorMsg,
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Detail: string(body),
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}
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}
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var result apiResponse
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if err = json.Unmarshal(body, &result); err != nil {
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return resp, body, &Error{
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Type: ErrBadResponse,
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Msg: err.Error(),
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if http.StatusNoContent != code {
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if err = json.Unmarshal(body, &result); err != nil {
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return resp, body, &Error{
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Type: ErrBadResponse,
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Msg: err.Error(),
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}
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}
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}
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if (code == statusAPIError) != (result.Status == "error") {
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if apiError(code) != (result.Status == "error") {
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err = &Error{
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Type: ErrBadResponse,
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Msg: "inconsistent body for response code",
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}
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}
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if code == statusAPIError && result.Status == "error" {
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if apiError(code) && result.Status == "error" {
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err = &Error{
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Type: result.ErrorType,
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Msg: result.Error,
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Reference in New Issue
Block a user