DevFW-CICD/ingress-nginx-helm
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Chart: Explicitly set runAsGroup.

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Set a default value for the runAsGroup in container securityContexts of
the controller and default backend.

Also set the runAsGroup for opentelemetry and webhook Job container
securityContexts.

Signed-off-by: Gerald Pape <gerald@giantswarm.io>
This commit is contained in:
Gerald Pape 2024-07-25 10:02:08 +02:00
parent e1d81b7818
commit c6a5e4e461
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GPG key ID: 27830AA75B7320B4
6 changed files with 42 additions and 2 deletions
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7
charts/ingress-nginx/README.md
View file

@ -242,7 +242,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
| controller.admissionWebhooks.certificate | string | `"/usr/local/certificates/cert"` | |
| controller.admissionWebhooks.createSecretJob.name | string | `"create"` | |
| controller.admissionWebhooks.createSecretJob.resources | object | `{}` | |
| controller.admissionWebhooks.createSecretJob.securityContext | object | `{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsNonRoot":true,"runAsUser":65532,"seccompProfile":{"type":"RuntimeDefault"}}` | Security context for secret creation containers |
| controller.admissionWebhooks.createSecretJob.securityContext | object | `{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsGroup":65532,"runAsNonRoot":true,"runAsUser":65532,"seccompProfile":{"type":"RuntimeDefault"}}` | Security context for secret creation containers |
| controller.admissionWebhooks.enabled | bool | `true` | |
| controller.admissionWebhooks.existingPsp | string | `""` | Use an existing PSP instead of creating one |
| controller.admissionWebhooks.extraEnvs | list | `[]` | Additional environment variables to set |
@ -273,7 +273,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
| controller.admissionWebhooks.patch.tolerations | list | `[]` | |
| controller.admissionWebhooks.patchWebhookJob.name | string | `"patch"` | |
| controller.admissionWebhooks.patchWebhookJob.resources | object | `{}` | |
| controller.admissionWebhooks.patchWebhookJob.securityContext | object | `{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsNonRoot":true,"runAsUser":65532,"seccompProfile":{"type":"RuntimeDefault"}}` | Security context for webhook patch containers |
| controller.admissionWebhooks.patchWebhookJob.securityContext | object | `{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsGroup":65532,"runAsNonRoot":true,"runAsUser":65532,"seccompProfile":{"type":"RuntimeDefault"}}` | Security context for webhook patch containers |
| controller.admissionWebhooks.port | int | `8443` | |
| controller.admissionWebhooks.service.annotations | object | `{}` | |
| controller.admissionWebhooks.service.externalIPs | list | `[]` | |
@ -331,6 +331,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
| controller.image.pullPolicy | string | `"IfNotPresent"` | |
| controller.image.readOnlyRootFilesystem | bool | `false` | |
| controller.image.registry | string | `"registry.k8s.io"` | |
| controller.image.runAsGroup | int | `82` | |
| controller.image.runAsNonRoot | bool | `true` | |
| controller.image.runAsUser | int | `101` | |
| controller.image.seccompProfile.type | string | `"RuntimeDefault"` | |
@ -396,6 +397,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
| controller.opentelemetry.containerSecurityContext.allowPrivilegeEscalation | bool | `false` | |
| controller.opentelemetry.containerSecurityContext.capabilities.drop[0] | string | `"ALL"` | |
| controller.opentelemetry.containerSecurityContext.readOnlyRootFilesystem | bool | `true` | |
| controller.opentelemetry.containerSecurityContext.runAsGroup | int | `65532` | |
| controller.opentelemetry.containerSecurityContext.runAsNonRoot | bool | `true` | |
| controller.opentelemetry.containerSecurityContext.runAsUser | int | `65532` | The image's default user, inherited from its base image `cgr.dev/chainguard/static`. |
| controller.opentelemetry.containerSecurityContext.seccompProfile.type | string | `"RuntimeDefault"` | |
@ -505,6 +507,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
| defaultBackend.image.pullPolicy | string | `"IfNotPresent"` | |
| defaultBackend.image.readOnlyRootFilesystem | bool | `true` | |
| defaultBackend.image.registry | string | `"registry.k8s.io"` | |
| defaultBackend.image.runAsGroup | int | `65534` | |
| defaultBackend.image.runAsNonRoot | bool | `true` | |
| defaultBackend.image.runAsUser | int | `65534` | |
| defaultBackend.image.seccompProfile.type | string | `"RuntimeDefault"` | |

2
charts/ingress-nginx/templates/_helpers.tpl
View file

@ -47,6 +47,7 @@ Controller container security context.
{{- else -}}
runAsNonRoot: {{ .Values.controller.image.runAsNonRoot }}
runAsUser: {{ .Values.controller.image.runAsUser }}
runAsGroup: {{ .Values.controller.image.runAsGroup }}
allowPrivilegeEscalation: {{ or .Values.controller.image.allowPrivilegeEscalation .Values.controller.image.chroot }}
{{- if .Values.controller.image.seccompProfile }}
seccompProfile: {{ toYaml .Values.controller.image.seccompProfile | nindent 2 }}
@ -222,6 +223,7 @@ Default backend container security context.
{{- else -}}
runAsNonRoot: {{ .Values.defaultBackend.image.runAsNonRoot }}
runAsUser: {{ .Values.defaultBackend.image.runAsUser }}
runAsGroup: {{ .Values.defaultBackend.image.runAsGroup }}
allowPrivilegeEscalation: {{ .Values.defaultBackend.image.allowPrivilegeEscalation }}
{{- if .Values.defaultBackend.image.seccompProfile }}
seccompProfile: {{ toYaml .Values.defaultBackend.image.seccompProfile | nindent 2 }}

9
charts/ingress-nginx/tests/controller-daemonset_test.yaml
View file

@ -138,3 +138,12 @@ tests:
values:
- controller
topologyKey: kubernetes.io/hostname
- it: should create a DaemonSet with `runAsGroup` if `controller.image.runAsGroup` is set
set:
controller.kind: DaemonSet
controller.image.runAsGroup: 1000
asserts:
- equal:
path: spec.template.spec.containers[0].securityContext.runAsGroup
value: 1000

8
charts/ingress-nginx/tests/controller-deployment_test.yaml
View file

@ -160,3 +160,11 @@ tests:
values:
- controller
topologyKey: kubernetes.io/hostname
- it: should create a Deployment with `runAsGroup` if `controller.image.runAsGroup` is set
set:
controller.image.runAsGroup: 1000
asserts:
- equal:
path: spec.template.spec.containers[0].securityContext.runAsGroup
value: 1000

9
charts/ingress-nginx/tests/default-backend-deployment_test.yaml
View file

@ -135,3 +135,12 @@ tests:
values:
- default-backend
topologyKey: kubernetes.io/hostname
- it: should create a Deployment with `runAsGroup` if `defaultBackend.image.runAsGroup` is set
set:
defaultBackend.enabled: true
defaultBackend.image.runAsGroup: 1000
asserts:
- equal:
path: spec.template.spec.containers[0].securityContext.runAsGroup
value: 1000

9
charts/ingress-nginx/values.yaml
View file

@ -31,8 +31,12 @@ controller:
digestChroot: sha256:7cabe4bd7558bfdf5b707976d7be56fd15ffece735d7c90fc238b6eda290fd8d
pullPolicy: IfNotPresent
runAsNonRoot: true
# The values for `runAsUser` or `runAsGroup` below should not be changed if your installation
# uses the `registry.k8s.io/ingress-nginx/conttroller` container image.
# www-data -> uid 101
# www-data -> gid 82
runAsUser: 101
runAsGroup: 82
allowPrivilegeEscalation: false
seccompProfile:
type: RuntimeDefault
@ -688,6 +692,7 @@ controller:
# containerSecurityContext:
# runAsNonRoot: true
# runAsUser: <user-id>
# runAsGroup: <group-id>
# allowPrivilegeEscalation: false
# seccompProfile:
# type: RuntimeDefault
@ -717,6 +722,7 @@ controller:
runAsNonRoot: true
# -- The image's default user, inherited from its base image `cgr.dev/chainguard/static`.
runAsUser: 65532
runAsGroup: 65532
allowPrivilegeEscalation: false
seccompProfile:
type: RuntimeDefault
@ -768,6 +774,7 @@ controller:
securityContext:
runAsNonRoot: true
runAsUser: 65532
runAsGroup: 65532
allowPrivilegeEscalation: false
seccompProfile:
type: RuntimeDefault
@ -788,6 +795,7 @@ controller:
securityContext:
runAsNonRoot: true
runAsUser: 65532
runAsGroup: 65532
allowPrivilegeEscalation: false
seccompProfile:
type: RuntimeDefault
@ -963,6 +971,7 @@ defaultBackend:
runAsNonRoot: true
# nobody user -> uid 65534
runAsUser: 65534
runAsGroup: 65534
allowPrivilegeEscalation: false
seccompProfile:
type: RuntimeDefault