mirror of https://github.com/grafana/grafana.git
46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
package api
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import (
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"errors"
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"net/http"
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"strings"
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"github.com/grafana/grafana-plugin-sdk-go/backend"
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"github.com/grafana/grafana/pkg/plugins/backendplugin"
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"github.com/grafana/grafana/pkg/web"
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)
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func (hs *HTTPServer) pluginMetricsEndpoint(ctx *web.Context) {
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if !hs.Cfg.MetricsEndpointEnabled {
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return
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}
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if ctx.Req.Method != http.MethodGet || !strings.HasPrefix(ctx.Req.URL.Path, "/metrics/plugins/") {
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return
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}
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if hs.metricsEndpointBasicAuthEnabled() && !BasicAuthenticatedRequest(ctx.Req, hs.Cfg.MetricsEndpointBasicAuthUsername, hs.Cfg.MetricsEndpointBasicAuthPassword) {
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ctx.Resp.WriteHeader(http.StatusUnauthorized)
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return
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}
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pathParts := strings.SplitAfter(ctx.Req.URL.Path, "/")
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pluginID := pathParts[len(pathParts)-1]
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resp, err := hs.pluginClient.CollectMetrics(ctx.Req.Context(), &backend.CollectMetricsRequest{PluginContext: backend.PluginContext{PluginID: pluginID}})
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if err != nil {
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if errors.Is(err, backendplugin.ErrPluginNotRegistered) {
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ctx.Resp.WriteHeader(http.StatusNotFound)
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return
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}
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ctx.Resp.WriteHeader(http.StatusInternalServerError)
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return
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}
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ctx.Resp.Header().Set("Content-Type", "text/plain")
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if _, err := ctx.Resp.Write(resp.PrometheusMetrics); err != nil {
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hs.log.Error("Failed to write to response", "err", err)
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}
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}
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