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analyzer.go
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analyzer.go
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/*
Copyright 2023 The K8sGPT Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package trivy
import (
"fmt"
"strings"
"github.com/aquasecurity/trivy-operator/pkg/apis/aquasecurity/v1alpha1"
"github.com/k8sgpt-ai/k8sgpt/pkg/common"
"github.com/k8sgpt-ai/k8sgpt/pkg/util"
"k8s.io/client-go/rest"
)
type TrivyAnalyzer struct {
vulernabilityReportAnalysis bool
configAuditReportAnalysis bool
}
func (TrivyAnalyzer) analyzeVulnerabilityReports(a common.Analyzer) ([]common.Result, error) {
// Get all trivy VulnerabilityReports
result := &v1alpha1.VulnerabilityReportList{}
config := a.Client.GetConfig()
// Add group version to sceheme
config.ContentConfig.GroupVersion = &v1alpha1.SchemeGroupVersion
config.UserAgent = rest.DefaultKubernetesUserAgent()
config.APIPath = "/apis"
restClient, err := rest.UnversionedRESTClientFor(config)
if err != nil {
return nil, err
}
err = restClient.Get().Resource("vulnerabilityreports").Namespace(a.Namespace).Do(a.Context).Into(result)
if err != nil {
return nil, err
}
// Find criticals and get CVE
var preAnalysis = map[string]common.PreAnalysis{}
for _, report := range result.Items {
// For each pod there may be multiple vulnerabilities
var failures []common.Failure
for _, vuln := range report.Report.Vulnerabilities {
if vuln.Severity == "CRITICAL" {
// get the vulnerability ID
// get the vulnerability description
failures = append(failures, common.Failure{
Text: fmt.Sprintf("critical Vulnerability found ID: %s (learn more at: %s)", vuln.VulnerabilityID, vuln.PrimaryLink),
Sensitive: []common.Sensitive{},
})
}
}
if len(failures) > 0 {
preAnalysis[fmt.Sprintf("%s/%s", report.Labels["trivy-operator.resource.namespace"],
report.Labels["trivy-operator.resource.name"])] = common.PreAnalysis{
TrivyVulnerabilityReport: report,
FailureDetails: failures,
}
}
}
for key, value := range preAnalysis {
var currentAnalysis = common.Result{
Kind: "VulnerabilityReport",
Name: key,
Error: value.FailureDetails,
}
parent, _ := util.GetParent(a.Client, value.TrivyVulnerabilityReport.ObjectMeta)
currentAnalysis.ParentObject = parent
a.Results = append(a.Results, currentAnalysis)
}
return a.Results, nil
}
func (t TrivyAnalyzer) analyzeConfigAuditReports(a common.Analyzer) ([]common.Result, error) {
// Get all trivy ConfigAuditReports
result := &v1alpha1.ConfigAuditReportList{}
config := a.Client.GetConfig()
// Add group version to sceheme
config.ContentConfig.GroupVersion = &v1alpha1.SchemeGroupVersion
config.UserAgent = rest.DefaultKubernetesUserAgent()
config.APIPath = "/apis"
restClient, err := rest.UnversionedRESTClientFor(config)
if err != nil {
return nil, err
}
err = restClient.Get().Resource("configauditreports").Namespace(a.Namespace).Do(a.Context).Into(result)
if err != nil {
return nil, err
}
// Find criticals and get CVE
var preAnalysis = map[string]common.PreAnalysis{}
for _, report := range result.Items {
// For each k8s resources there may be multiple checks
var failures []common.Failure
for _, check := range report.Report.Checks {
if check.Severity == "MEDIUM" || check.Severity == "HIGH" || check.Severity == "CRITICAL" {
failures = append(failures, common.Failure{
Text: fmt.Sprintf("Config issue with severity \"%s\" found: %s", check.Severity, strings.Join(check.Messages, "")),
Sensitive: []common.Sensitive{
{
Unmasked: report.Labels["trivy-operator.resource.name"],
Masked: util.MaskString(report.Labels["trivy-operator.resource.name"]),
},
{
Unmasked: report.Labels["trivy-operator.resource.namespace"],
Masked: util.MaskString(report.Labels["trivy-operator.resource.namespace"]),
},
},
})
}
}
if len(failures) > 0 {
preAnalysis[fmt.Sprintf("%s/%s", report.Labels["trivy-operator.resource.namespace"],
report.Labels["trivy-operator.resource.name"])] = common.PreAnalysis{
TrivyConfigAuditReport: report,
FailureDetails: failures,
}
}
}
for key, value := range preAnalysis {
var currentAnalysis = common.Result{
Kind: "ConfigAuditReport",
Name: key,
Error: value.FailureDetails,
}
parent, _ := util.GetParent(a.Client, value.TrivyConfigAuditReport.ObjectMeta)
currentAnalysis.ParentObject = parent
a.Results = append(a.Results, currentAnalysis)
}
return a.Results, nil
}
func (t TrivyAnalyzer) Analyze(a common.Analyzer) ([]common.Result, error) {
if t.vulernabilityReportAnalysis {
common := make([]common.Result, 0)
vresult, err := t.analyzeVulnerabilityReports(a)
if err != nil {
return nil, err
}
common = append(common, vresult...)
return common, nil
}
if t.configAuditReportAnalysis {
common := make([]common.Result, 0)
cresult, err := t.analyzeConfigAuditReports(a)
if err != nil {
return nil, err
}
common = append(common, cresult...)
return common, nil
}
return make([]common.Result, 0), nil
}