UD-1931: Revert back to UD-1521 fsgroup behaviour and include runAsGroup

undistro · Nov 6, 2024 · ee14679 · ee14679
1 parent d5f5813
commit ee14679
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Showing 6 changed files with 20 additions and 12 deletions.
diff --git a/charts/zora/README.md b/charts/zora/README.md
@@ -123,7 +123,7 @@ The following table lists the configurable parameters of the Zora chart and thei
 | scan.plugins.trivy.envFrom | list | `[]` | List of sources to populate environment variables in trivy container. |
 | scan.plugins.trivy.timeout | string | `"10m"` | Trivy timeout |
 | scan.plugins.trivy.insecure | bool | `false` | Allow insecure server connections for Trivy |
-| scan.plugins.trivy.fsGroup | int | `nil` | Trivy fsGroup. Should be greater than 0. |
+| scan.plugins.trivy.fsGroup | int | `0` | Specifies the fsGroup to use when mounting the persistent volume. Should be greater than 0. |
 | scan.plugins.trivy.persistence.enabled | bool | `true` | Specifies whether Trivy vulnerabilities database should be persisted between the scans, using PersistentVolumeClaim |
 | scan.plugins.trivy.persistence.accessMode | string | `"ReadWriteOnce"` | [Persistence access mode](https://kubernetes.io/docs/concepts/storage/persistent-volumes/#access-modes) |
 | scan.plugins.trivy.persistence.storageClass | string | `""` | [Persistence storage class](https://kubernetes.io/docs/concepts/storage/storage-classes/). Set to empty for default storage class |

diff --git a/charts/zora/templates/operator/deployment.yaml b/charts/zora/templates/operator/deployment.yaml
@@ -104,8 +104,8 @@ spec:
             - --worker-image={{ printf "%s:%s" .Values.scan.worker.image.repository (.Values.scan.worker.image.tag | default .Chart.AppVersion) }}
             - --cronjob-clusterrolebinding-name=zora-plugins-rolebinding
             - --cronjob-serviceaccount-name=zora-plugins
-            - --trivy-db-pvc={{- if .Values.scan.plugins.trivy.persistence.enabled }}trivy-db-volume{{- end }}
-            - --trivy-fs-group={{- if .Values.scan.plugins.trivy.fsGroup }}{{ .Values.scan.plugins.trivy.fsGroup }}{{- else }}0{{- end}}
+            - --trivy-db-pvc={{- if .Values.scan.plugins.trivy.persistence.enabled }}trivy-dbs-volume{{- end }}
+            - --trivy-fs-group={{ .Values.scan.plugins.trivy.fsGroup }}
 {{- if .Values.scan.plugins.annotations}}
             - --cronjob-serviceaccount-annotations={{ $first := true }}{{- range $key, $value := .Values.scan.plugins.annotations }}{{if not $first}},{{else}}{{$first = false}}{{end}}{{ $key }}={{$value}}{{- end }}
 {{- end }}

diff --git a/charts/zora/templates/plugins/trivy-job.yaml b/charts/zora/templates/plugins/trivy-job.yaml
@@ -24,11 +24,9 @@ spec:
       volumes:
         - name: trivy-db
           persistentVolumeClaim:
-            claimName: trivy-db-volume
-      {{- if .Values.scan.plugins.trivy.fsGroup }}
+            claimName: trivy-dbs-volume
       securityContext:
         fsGroup: {{ .Values.scan.plugins.trivy.fsGroup }}
-      {{- end }}
       containers:
         - name: trivy-download-db
           image: "{{ .Values.scan.plugins.trivy.image.repository }}:{{ .Values.scan.plugins.trivy.image.tag }}"
@@ -42,6 +40,7 @@ spec:
               - ALL
             privileged: false
             runAsNonRoot: true
+            runAsGroup: {{ .Values.scan.plugins.trivy.fsGroup }}
             seccompProfile:
               type: "RuntimeDefault"
           volumeMounts:
@@ -66,8 +65,9 @@ spec:
                 {{- if .Values.scan.plugins.trivy.insecure }}
                 --insecure \
                 {{- end }}
-                --download-java-db-only
-              {{- end }}
+                --download-java-db-only {{- end }} && \
+                find /tmp/trivy-cache ! -group {{ .Values.scan.plugins.trivy.fsGroup }} | xargs -r chgrp -f {{ .Values.scan.plugins.trivy.fsGroup }} && \
+                find /tmp/trivy-cache ! -perm -070 | xargs -r chmod -f g+rwX
           env:
             - name: SSL_CERT_DIR
               value: "/etc/ssl/:/run/secrets/kubernetes.io/serviceaccount/"

diff --git a/charts/zora/templates/plugins/trivy-pvc.yaml b/charts/zora/templates/plugins/trivy-pvc.yaml
@@ -16,7 +16,7 @@
 apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
-  name: trivy-db-volume
+  name: trivy-dbs-volume
 spec:
   {{- if .Values.scan.plugins.trivy.persistence.storageClass }}
   storageClassName: {{ .Values.scan.plugins.trivy.persistence.storageClass | quote }}

diff --git a/charts/zora/values.yaml b/charts/zora/values.yaml
@@ -241,8 +241,8 @@ scan:
       # -- Allow insecure server connections for Trivy
       insecure: false
 
-      # -- (int) Trivy fsGroup. Should be greater than 0.
-      fsGroup: null
+      # -- Specifies the fsGroup to use when mounting the persistent volume. Should be greater than 0.
+      fsGroup: 0
 
       persistence:
         # -- Specifies whether Trivy vulnerabilities database should be persisted between the scans, using PersistentVolumeClaim

diff --git a/pkg/plugins/cronjob.go b/pkg/plugins/cronjob.go
@@ -146,6 +146,7 @@ func (r *CronJobMutator) Mutate() error {
 		})
 	}
 
+	setRunAsGroup := false
 	if r.Plugin.Name == "trivy" {
 		if r.TrivyPVC != "" {
 			r.Existing.Spec.JobTemplate.Spec.Template.Spec.Volumes = append(r.Existing.Spec.JobTemplate.Spec.Template.Spec.Volumes, corev1.Volume{
@@ -155,8 +156,9 @@ func (r *CronJobMutator) Mutate() error {
 				},
 			})
 		}
-		if r.TrivyFSGroup != 0 {
+		if r.TrivyFSGroup >= 0 {
 			r.Existing.Spec.JobTemplate.Spec.Template.Spec.SecurityContext = &corev1.PodSecurityContext{FSGroup: &r.TrivyFSGroup}
+			setRunAsGroup = true
 		}
 	}
 
@@ -204,6 +206,12 @@ func (r *CronJobMutator) Mutate() error {
 		r.Existing.Spec.JobTemplate.Spec.Template.Spec.Containers = containers
 	}
 
+	if setRunAsGroup {
+		for _, container := range r.Existing.Spec.JobTemplate.Spec.Template.Spec.Containers {
+			container.SecurityContext.RunAsGroup = &r.TrivyFSGroup
+		}
+	}
+
 	return ctrl.SetControllerReference(r.ClusterScan, r.Existing, r.Scheme)
 }