Revision c42a546055737158f9fe7548d877f23253dfdc1b authored by Jack Baldry on 07 July 2022, 18:02:35 UTC, committed by grafanabot on 07 July 2022, 18:03:59 UTC
Signed-off-by: Jack Baldry <jack.baldry@grafana.com> (cherry picked from commit 1976edaffcd64f2ba6dc5b38a63f91d01f7a29f1)
1 parent 91585c7
plugin_metrics.go
package api
import (
"errors"
"net/http"
"strings"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/grafana/grafana/pkg/plugins/backendplugin"
"github.com/grafana/grafana/pkg/web"
)
func (hs *HTTPServer) pluginMetricsEndpoint(ctx *web.Context) {
if !hs.Cfg.MetricsEndpointEnabled {
return
}
if ctx.Req.Method != http.MethodGet || !strings.HasPrefix(ctx.Req.URL.Path, "/metrics/plugins/") {
return
}
if hs.metricsEndpointBasicAuthEnabled() && !BasicAuthenticatedRequest(ctx.Req, hs.Cfg.MetricsEndpointBasicAuthUsername, hs.Cfg.MetricsEndpointBasicAuthPassword) {
ctx.Resp.WriteHeader(http.StatusUnauthorized)
return
}
pathParts := strings.SplitAfter(ctx.Req.URL.Path, "/")
pluginID := pathParts[len(pathParts)-1]
resp, err := hs.pluginClient.CollectMetrics(ctx.Req.Context(), &backend.CollectMetricsRequest{PluginContext: backend.PluginContext{PluginID: pluginID}})
if err != nil {
if errors.Is(err, backendplugin.ErrPluginNotRegistered) {
ctx.Resp.WriteHeader(http.StatusNotFound)
return
}
ctx.Resp.WriteHeader(http.StatusInternalServerError)
return
}
ctx.Resp.Header().Set("Content-Type", "text/plain")
if _, err := ctx.Resp.Write(resp.PrometheusMetrics); err != nil {
hs.log.Error("Failed to write to response", "err", err)
}
}
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