Files
2025-01-09 12:14:56 +01:00

88 lines
3.2 KiB
Go

package v1
import (
"context"
"fmt"
"net/http"
"os"
"path/filepath"
"github.com/google/uuid"
"github.com/kubescape/go-logger"
"github.com/kubescape/go-logger/helpers"
"github.com/kubescape/kubescape/v3/core/cautils"
"github.com/kubescape/kubescape/v3/core/cautils/getter"
apisv1 "github.com/kubescape/opa-utils/httpserver/apis/v1"
utilsapisv1 "github.com/kubescape/opa-utils/httpserver/apis/v1"
utilsmetav1 "github.com/kubescape/opa-utils/httpserver/meta/v1"
"go.opentelemetry.io/otel/trace"
)
// Metrics http listener for prometheus support
func (handler *HTTPHandler) Metrics(w http.ResponseWriter, r *http.Request) {
scanID := uuid.NewString()
handler.state.setBusy(scanID)
defer handler.state.setNotBusy(scanID)
resultsFile := filepath.Join(OutputDir, scanID)
scanInfo := getPrometheusDefaultScanCommand(scanID, resultsFile)
scanParams := &scanRequestParams{
scanQueryParams: &ScanQueryParams{
ReturnResults: true,
KeepResults: false,
},
scanInfo: scanInfo,
scanID: scanID,
ctx: trace.ContextWithSpanContext(context.Background(), trace.SpanContextFromContext(r.Context())),
resp: make(chan *utilsmetav1.Response, 1),
}
// send to scan queue
logger.L().Info("requesting scan", helpers.String("scanID", scanID), helpers.String("api", "v1/metrics"))
handler.scanRequestChan <- scanParams
// wait for scan to complete
results := <-scanParams.resp
defer removeResultsFile(scanID) // remove json format results file
defer os.Remove(resultsFile) // remove prometheus format results file
// handle response
if results.Type == utilsapisv1.ErrorScanResponseType {
w.WriteHeader(http.StatusInternalServerError)
w.Write(responseToBytes(results))
return
}
// read prometheus format results file
f, err := os.ReadFile(resultsFile)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
results.Type = utilsapisv1.ErrorScanResponseType
results.Response = fmt.Sprintf("failed read results from file. reason: %s", err.Error())
w.Write(responseToBytes(results))
return
}
w.WriteHeader(http.StatusOK)
w.Write(f)
}
func getPrometheusDefaultScanCommand(scanID, resultsFile string) *cautils.ScanInfo {
scanInfo := defaultScanInfo()
scanInfo.UseArtifactsFrom = getter.DefaultLocalStore // Load files from cache (this will prevent kubescape fom downloading the artifacts every time)
scanInfo.Submit = false // do not submit results every scan
scanInfo.Local = true // do not submit results every scan
scanInfo.FrameworkScan = true
scanInfo.HostSensorEnabled.SetBool(false) // disable host scanner
scanInfo.ScanAll = false // do not scan all frameworks
scanInfo.ScanID = scanID // scan ID
scanInfo.FailThreshold = 100 // Do not fail scanning
scanInfo.ComplianceThreshold = 0 // Do not fail scanning
scanInfo.Output = resultsFile // results output
scanInfo.Format = envToString("KS_FORMAT", "prometheus") // default output should be json
scanInfo.SetPolicyIdentifiers(getter.NativeFrameworks, apisv1.KindFramework)
return scanInfo
}