新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件
This commit is contained in:
61
learn/learn-kubernetes-master/kiamol/ch16/lab/README.md
Normal file
61
learn/learn-kubernetes-master/kiamol/ch16/lab/README.md
Normal file
@@ -0,0 +1,61 @@
|
||||
# Ch16 lab
|
||||
|
||||
## Setup
|
||||
|
||||
Deploy OPA Gatekeeper:
|
||||
|
||||
```
|
||||
kubectl apply -f lab/gatekeeper.yaml
|
||||
```
|
||||
|
||||
And the constraint template:
|
||||
|
||||
```
|
||||
kubectl apply -f lab/restrictedPaths-template.yaml
|
||||
```
|
||||
|
||||
## Sample Solution
|
||||
|
||||
The [constraint template](./restrictedPaths-template.yaml) uses a `paths` parameter to list restricted paths.
|
||||
|
||||
My [constraint](./solution/restrictedPaths-constraint.yaml) specifies paths and a label selector.
|
||||
|
||||
Deploy the constraint:
|
||||
|
||||
```
|
||||
kubectl apply -f lab/solution/restrictedPaths-constraint.yaml
|
||||
```
|
||||
|
||||
Try to deploy an app which uses restricted paths:
|
||||
|
||||
```
|
||||
kubectl apply -f lab/sleep.yaml
|
||||
|
||||
kubectl get all -l app=sleep
|
||||
|
||||
kubectl describe rs -l app=sleep
|
||||
```
|
||||
|
||||
> You should see the ReplicaSet has zero Pods, and the detail shows the error message from the constraint
|
||||
|
||||
You can fix it with an [updated sleep spec](./solution/sleep.yaml):
|
||||
|
||||
```
|
||||
kubectl apply -f lab/solution/sleep.yaml
|
||||
|
||||
kubectl get all -l app=sleep
|
||||
|
||||
kubectl describe rs -l app=sleep
|
||||
```
|
||||
|
||||
## Teardown
|
||||
|
||||
Delete all the resources:
|
||||
|
||||
```
|
||||
kubectl delete -f lab/solution/sleep.yaml
|
||||
|
||||
kubectl delete RestrictedPaths,ConstraintTemplates --all
|
||||
|
||||
kubectl delete -f lab/gatekeeper.yaml
|
||||
```
|
||||
818
learn/learn-kubernetes-master/kiamol/ch16/lab/gatekeeper.yaml
Normal file
818
learn/learn-kubernetes-master/kiamol/ch16/lab/gatekeeper.yaml
Normal file
@@ -0,0 +1,818 @@
|
||||
apiVersion: v1
|
||||
kind: Namespace
|
||||
metadata:
|
||||
labels:
|
||||
admission.gatekeeper.sh/ignore: no-self-managing
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-system
|
||||
---
|
||||
apiVersion: apiextensions.k8s.io/v1beta1
|
||||
kind: CustomResourceDefinition
|
||||
metadata:
|
||||
annotations:
|
||||
controller-gen.kubebuilder.io/version: v0.2.4
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: configs.config.gatekeeper.sh
|
||||
spec:
|
||||
group: config.gatekeeper.sh
|
||||
names:
|
||||
kind: Config
|
||||
listKind: ConfigList
|
||||
plural: configs
|
||||
singular: config
|
||||
scope: Namespaced
|
||||
validation:
|
||||
openAPIV3Schema:
|
||||
description: Config is the Schema for the configs API
|
||||
properties:
|
||||
apiVersion:
|
||||
description: 'APIVersion defines the versioned schema of this representation
|
||||
of an object. Servers should convert recognized schemas to the latest
|
||||
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
|
||||
type: string
|
||||
kind:
|
||||
description: 'Kind is a string value representing the REST resource this
|
||||
object represents. Servers may infer this from the endpoint the client
|
||||
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
|
||||
type: string
|
||||
metadata:
|
||||
type: object
|
||||
spec:
|
||||
description: ConfigSpec defines the desired state of Config
|
||||
properties:
|
||||
sync:
|
||||
description: Configuration for syncing k8s objects
|
||||
properties:
|
||||
syncOnly:
|
||||
description: If non-empty, only entries on this list will be replicated
|
||||
into OPA
|
||||
items:
|
||||
properties:
|
||||
group:
|
||||
type: string
|
||||
kind:
|
||||
type: string
|
||||
version:
|
||||
type: string
|
||||
type: object
|
||||
type: array
|
||||
type: object
|
||||
validation:
|
||||
description: Configuration for validation
|
||||
properties:
|
||||
traces:
|
||||
description: List of requests to trace. Both "user" and "kinds"
|
||||
must be specified
|
||||
items:
|
||||
properties:
|
||||
dump:
|
||||
description: Also dump the state of OPA with the trace. Set
|
||||
to `All` to dump everything.
|
||||
type: string
|
||||
kind:
|
||||
description: Only trace requests of the following GroupVersionKind
|
||||
properties:
|
||||
group:
|
||||
type: string
|
||||
kind:
|
||||
type: string
|
||||
version:
|
||||
type: string
|
||||
type: object
|
||||
user:
|
||||
description: Only trace requests from the specified user
|
||||
type: string
|
||||
type: object
|
||||
type: array
|
||||
type: object
|
||||
type: object
|
||||
status:
|
||||
description: ConfigStatus defines the observed state of Config
|
||||
type: object
|
||||
type: object
|
||||
version: v1alpha1
|
||||
versions:
|
||||
- name: v1alpha1
|
||||
served: true
|
||||
storage: true
|
||||
status:
|
||||
acceptedNames:
|
||||
kind: ""
|
||||
plural: ""
|
||||
conditions: []
|
||||
storedVersions: []
|
||||
---
|
||||
apiVersion: apiextensions.k8s.io/v1beta1
|
||||
kind: CustomResourceDefinition
|
||||
metadata:
|
||||
annotations:
|
||||
controller-gen.kubebuilder.io/version: v0.2.4
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: constraintpodstatuses.status.gatekeeper.sh
|
||||
spec:
|
||||
group: status.gatekeeper.sh
|
||||
names:
|
||||
kind: ConstraintPodStatus
|
||||
listKind: ConstraintPodStatusList
|
||||
plural: constraintpodstatuses
|
||||
singular: constraintpodstatus
|
||||
scope: Namespaced
|
||||
validation:
|
||||
openAPIV3Schema:
|
||||
description: ConstraintPodStatus is the Schema for the constraintpodstatuses
|
||||
API
|
||||
properties:
|
||||
apiVersion:
|
||||
description: 'APIVersion defines the versioned schema of this representation
|
||||
of an object. Servers should convert recognized schemas to the latest
|
||||
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
|
||||
type: string
|
||||
kind:
|
||||
description: 'Kind is a string value representing the REST resource this
|
||||
object represents. Servers may infer this from the endpoint the client
|
||||
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
|
||||
type: string
|
||||
metadata:
|
||||
type: object
|
||||
status:
|
||||
description: ConstraintPodStatusStatus defines the observed state of ConstraintPodStatus
|
||||
properties:
|
||||
constraintUID:
|
||||
description: Storing the constraint UID allows us to detect drift, such
|
||||
as when a constraint has been recreated after its CRD was deleted
|
||||
out from under it, interrupting the watch
|
||||
type: string
|
||||
enforced:
|
||||
type: boolean
|
||||
errors:
|
||||
items:
|
||||
description: Error represents a single error caught while adding a
|
||||
constraint to OPA
|
||||
properties:
|
||||
code:
|
||||
type: string
|
||||
location:
|
||||
type: string
|
||||
message:
|
||||
type: string
|
||||
required:
|
||||
- code
|
||||
- message
|
||||
type: object
|
||||
type: array
|
||||
id:
|
||||
type: string
|
||||
observedGeneration:
|
||||
format: int64
|
||||
type: integer
|
||||
operations:
|
||||
items:
|
||||
type: string
|
||||
type: array
|
||||
type: object
|
||||
type: object
|
||||
version: v1beta1
|
||||
versions:
|
||||
- name: v1beta1
|
||||
served: true
|
||||
storage: true
|
||||
status:
|
||||
acceptedNames:
|
||||
kind: ""
|
||||
plural: ""
|
||||
conditions: []
|
||||
storedVersions: []
|
||||
---
|
||||
apiVersion: apiextensions.k8s.io/v1beta1
|
||||
kind: CustomResourceDefinition
|
||||
metadata:
|
||||
annotations:
|
||||
controller-gen.kubebuilder.io/version: v0.2.4
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: constrainttemplatepodstatuses.status.gatekeeper.sh
|
||||
spec:
|
||||
group: status.gatekeeper.sh
|
||||
names:
|
||||
kind: ConstraintTemplatePodStatus
|
||||
listKind: ConstraintTemplatePodStatusList
|
||||
plural: constrainttemplatepodstatuses
|
||||
singular: constrainttemplatepodstatus
|
||||
scope: Namespaced
|
||||
validation:
|
||||
openAPIV3Schema:
|
||||
description: ConstraintTemplatePodStatus is the Schema for the constrainttemplatepodstatuses
|
||||
API
|
||||
properties:
|
||||
apiVersion:
|
||||
description: 'APIVersion defines the versioned schema of this representation
|
||||
of an object. Servers should convert recognized schemas to the latest
|
||||
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
|
||||
type: string
|
||||
kind:
|
||||
description: 'Kind is a string value representing the REST resource this
|
||||
object represents. Servers may infer this from the endpoint the client
|
||||
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
|
||||
type: string
|
||||
metadata:
|
||||
type: object
|
||||
status:
|
||||
description: ConstraintTemplatePodStatusStatus defines the observed state
|
||||
of ConstraintTemplatePodStatus
|
||||
properties:
|
||||
errors:
|
||||
items:
|
||||
description: CreateCRDError represents a single error caught during
|
||||
parsing, compiling, etc.
|
||||
properties:
|
||||
code:
|
||||
type: string
|
||||
location:
|
||||
type: string
|
||||
message:
|
||||
type: string
|
||||
required:
|
||||
- code
|
||||
- message
|
||||
type: object
|
||||
type: array
|
||||
id:
|
||||
description: 'Important: Run "make" to regenerate code after modifying
|
||||
this file'
|
||||
type: string
|
||||
observedGeneration:
|
||||
format: int64
|
||||
type: integer
|
||||
operations:
|
||||
items:
|
||||
type: string
|
||||
type: array
|
||||
templateUID:
|
||||
description: UID is a type that holds unique ID values, including UUIDs. Because
|
||||
we don't ONLY use UUIDs, this is an alias to string. Being a type
|
||||
captures intent and helps make sure that UIDs and names do not get
|
||||
conflated.
|
||||
type: string
|
||||
type: object
|
||||
type: object
|
||||
version: v1beta1
|
||||
versions:
|
||||
- name: v1beta1
|
||||
served: true
|
||||
storage: true
|
||||
status:
|
||||
acceptedNames:
|
||||
kind: ""
|
||||
plural: ""
|
||||
conditions: []
|
||||
storedVersions: []
|
||||
---
|
||||
apiVersion: apiextensions.k8s.io/v1beta1
|
||||
kind: CustomResourceDefinition
|
||||
metadata:
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
controller-tools.k8s.io: "1.0"
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: constrainttemplates.templates.gatekeeper.sh
|
||||
spec:
|
||||
group: templates.gatekeeper.sh
|
||||
names:
|
||||
kind: ConstraintTemplate
|
||||
plural: constrainttemplates
|
||||
scope: Cluster
|
||||
subresources:
|
||||
status: {}
|
||||
validation:
|
||||
openAPIV3Schema:
|
||||
properties:
|
||||
apiVersion:
|
||||
description: 'APIVersion defines the versioned schema of this representation
|
||||
of an object. Servers should convert recognized schemas to the latest
|
||||
internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
|
||||
type: string
|
||||
kind:
|
||||
description: 'Kind is a string value representing the REST resource this
|
||||
object represents. Servers may infer this from the endpoint the client
|
||||
submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
|
||||
type: string
|
||||
metadata:
|
||||
type: object
|
||||
spec:
|
||||
properties:
|
||||
crd:
|
||||
properties:
|
||||
spec:
|
||||
properties:
|
||||
names:
|
||||
properties:
|
||||
kind:
|
||||
type: string
|
||||
shortNames:
|
||||
items:
|
||||
type: string
|
||||
type: array
|
||||
type: object
|
||||
validation:
|
||||
type: object
|
||||
type: object
|
||||
type: object
|
||||
targets:
|
||||
items:
|
||||
properties:
|
||||
libs:
|
||||
items:
|
||||
type: string
|
||||
type: array
|
||||
rego:
|
||||
type: string
|
||||
target:
|
||||
type: string
|
||||
type: object
|
||||
type: array
|
||||
type: object
|
||||
status:
|
||||
properties:
|
||||
byPod:
|
||||
items:
|
||||
properties:
|
||||
errors:
|
||||
items:
|
||||
properties:
|
||||
code:
|
||||
type: string
|
||||
location:
|
||||
type: string
|
||||
message:
|
||||
type: string
|
||||
required:
|
||||
- code
|
||||
- message
|
||||
type: object
|
||||
type: array
|
||||
id:
|
||||
description: a unique identifier for the pod that wrote the status
|
||||
type: string
|
||||
observedGeneration:
|
||||
format: int64
|
||||
type: integer
|
||||
type: object
|
||||
type: array
|
||||
created:
|
||||
type: boolean
|
||||
type: object
|
||||
version: v1beta1
|
||||
versions:
|
||||
- name: v1beta1
|
||||
served: true
|
||||
storage: true
|
||||
- name: v1alpha1
|
||||
served: true
|
||||
storage: false
|
||||
status:
|
||||
acceptedNames:
|
||||
kind: ""
|
||||
plural: ""
|
||||
conditions: []
|
||||
storedVersions: []
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-admin
|
||||
namespace: gatekeeper-system
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: Role
|
||||
metadata:
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-manager-role
|
||||
namespace: gatekeeper-system
|
||||
rules:
|
||||
- apiGroups:
|
||||
- ""
|
||||
resources:
|
||||
- secrets
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRole
|
||||
metadata:
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-manager-role
|
||||
rules:
|
||||
- apiGroups:
|
||||
- '*'
|
||||
resources:
|
||||
- '*'
|
||||
verbs:
|
||||
- get
|
||||
- list
|
||||
- watch
|
||||
- apiGroups:
|
||||
- apiextensions.k8s.io
|
||||
resources:
|
||||
- customresourcedefinitions
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
- apiGroups:
|
||||
- config.gatekeeper.sh
|
||||
resources:
|
||||
- configs
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
- apiGroups:
|
||||
- config.gatekeeper.sh
|
||||
resources:
|
||||
- configs/status
|
||||
verbs:
|
||||
- get
|
||||
- patch
|
||||
- update
|
||||
- apiGroups:
|
||||
- constraints.gatekeeper.sh
|
||||
resources:
|
||||
- '*'
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
- apiGroups:
|
||||
- policy
|
||||
resources:
|
||||
- podsecuritypolicies
|
||||
verbs:
|
||||
- use
|
||||
- apiGroups:
|
||||
- status.gatekeeper.sh
|
||||
resources:
|
||||
- '*'
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
- apiGroups:
|
||||
- templates.gatekeeper.sh
|
||||
resources:
|
||||
- constrainttemplates
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
- apiGroups:
|
||||
- templates.gatekeeper.sh
|
||||
resources:
|
||||
- constrainttemplates/finalizers
|
||||
verbs:
|
||||
- delete
|
||||
- get
|
||||
- patch
|
||||
- update
|
||||
- apiGroups:
|
||||
- templates.gatekeeper.sh
|
||||
resources:
|
||||
- constrainttemplates/status
|
||||
verbs:
|
||||
- get
|
||||
- patch
|
||||
- update
|
||||
- apiGroups:
|
||||
- admissionregistration.k8s.io
|
||||
resourceNames:
|
||||
- gatekeeper-validating-webhook-configuration
|
||||
resources:
|
||||
- validatingwebhookconfigurations
|
||||
verbs:
|
||||
- create
|
||||
- delete
|
||||
- get
|
||||
- list
|
||||
- patch
|
||||
- update
|
||||
- watch
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: RoleBinding
|
||||
metadata:
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-manager-rolebinding
|
||||
namespace: gatekeeper-system
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: Role
|
||||
name: gatekeeper-manager-role
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: gatekeeper-admin
|
||||
namespace: gatekeeper-system
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRoleBinding
|
||||
metadata:
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-manager-rolebinding
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: ClusterRole
|
||||
name: gatekeeper-manager-role
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: gatekeeper-admin
|
||||
namespace: gatekeeper-system
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
metadata:
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-webhook-server-cert
|
||||
namespace: gatekeeper-system
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-webhook-service
|
||||
namespace: gatekeeper-system
|
||||
spec:
|
||||
ports:
|
||||
- port: 443
|
||||
targetPort: 8443
|
||||
selector:
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/operation: webhook
|
||||
gatekeeper.sh/system: "yes"
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/operation: audit
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-audit
|
||||
namespace: gatekeeper-system
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
control-plane: audit-controller
|
||||
gatekeeper.sh/operation: audit
|
||||
gatekeeper.sh/system: "yes"
|
||||
template:
|
||||
metadata:
|
||||
annotations:
|
||||
container.seccomp.security.alpha.kubernetes.io/manager: runtime/default
|
||||
labels:
|
||||
control-plane: audit-controller
|
||||
gatekeeper.sh/operation: audit
|
||||
gatekeeper.sh/system: "yes"
|
||||
spec:
|
||||
containers:
|
||||
- args:
|
||||
- --operation=audit
|
||||
- --operation=status
|
||||
- --logtostderr
|
||||
command:
|
||||
- /manager
|
||||
env:
|
||||
- name: POD_NAMESPACE
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
apiVersion: v1
|
||||
fieldPath: metadata.namespace
|
||||
- name: POD_NAME
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.name
|
||||
image: openpolicyagent/gatekeeper:v3.1.0-beta.10
|
||||
imagePullPolicy: Always
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
path: /healthz
|
||||
port: 9090
|
||||
name: auditcontainer
|
||||
ports:
|
||||
- containerPort: 8888
|
||||
name: metrics
|
||||
protocol: TCP
|
||||
- containerPort: 9090
|
||||
name: healthz
|
||||
protocol: TCP
|
||||
readinessProbe:
|
||||
httpGet:
|
||||
path: /readyz
|
||||
port: 9090
|
||||
resources:
|
||||
limits:
|
||||
cpu: 1000m
|
||||
memory: 512Mi
|
||||
requests:
|
||||
cpu: 100m
|
||||
memory: 256Mi
|
||||
securityContext:
|
||||
allowPrivilegeEscalation: false
|
||||
capabilities:
|
||||
drop:
|
||||
- all
|
||||
runAsGroup: 999
|
||||
runAsNonRoot: true
|
||||
runAsUser: 1000
|
||||
nodeSelector:
|
||||
kubernetes.io/os: linux
|
||||
serviceAccountName: gatekeeper-admin
|
||||
terminationGracePeriodSeconds: 60
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/operation: webhook
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-controller-manager
|
||||
namespace: gatekeeper-system
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/operation: webhook
|
||||
gatekeeper.sh/system: "yes"
|
||||
template:
|
||||
metadata:
|
||||
annotations:
|
||||
container.seccomp.security.alpha.kubernetes.io/manager: runtime/default
|
||||
labels:
|
||||
control-plane: controller-manager
|
||||
gatekeeper.sh/operation: webhook
|
||||
gatekeeper.sh/system: "yes"
|
||||
spec:
|
||||
containers:
|
||||
- args:
|
||||
- --port=8443
|
||||
- --logtostderr
|
||||
- --exempt-namespace=gatekeeper-system
|
||||
- --operation=webhook
|
||||
command:
|
||||
- /manager
|
||||
env:
|
||||
- name: POD_NAMESPACE
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
apiVersion: v1
|
||||
fieldPath: metadata.namespace
|
||||
- name: POD_NAME
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.name
|
||||
image: openpolicyagent/gatekeeper:v3.1.0-beta.10
|
||||
imagePullPolicy: Always
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
path: /healthz
|
||||
port: 9090
|
||||
name: manager
|
||||
ports:
|
||||
- containerPort: 8443
|
||||
name: webhook-server
|
||||
protocol: TCP
|
||||
- containerPort: 8888
|
||||
name: metrics
|
||||
protocol: TCP
|
||||
- containerPort: 9090
|
||||
name: healthz
|
||||
protocol: TCP
|
||||
readinessProbe:
|
||||
httpGet:
|
||||
path: /readyz
|
||||
port: 9090
|
||||
resources:
|
||||
limits:
|
||||
cpu: 1000m
|
||||
memory: 512Mi
|
||||
requests:
|
||||
cpu: 100m
|
||||
memory: 256Mi
|
||||
securityContext:
|
||||
allowPrivilegeEscalation: false
|
||||
capabilities:
|
||||
drop:
|
||||
- all
|
||||
runAsGroup: 999
|
||||
runAsNonRoot: true
|
||||
runAsUser: 1000
|
||||
volumeMounts:
|
||||
- mountPath: /certs
|
||||
name: cert
|
||||
readOnly: true
|
||||
nodeSelector:
|
||||
kubernetes.io/os: linux
|
||||
serviceAccountName: gatekeeper-admin
|
||||
terminationGracePeriodSeconds: 60
|
||||
volumes:
|
||||
- name: cert
|
||||
secret:
|
||||
defaultMode: 420
|
||||
secretName: gatekeeper-webhook-server-cert
|
||||
---
|
||||
apiVersion: admissionregistration.k8s.io/v1beta1
|
||||
kind: ValidatingWebhookConfiguration
|
||||
metadata:
|
||||
creationTimestamp: null
|
||||
labels:
|
||||
gatekeeper.sh/system: "yes"
|
||||
name: gatekeeper-validating-webhook-configuration
|
||||
webhooks:
|
||||
- clientConfig:
|
||||
caBundle: Cg==
|
||||
service:
|
||||
name: gatekeeper-webhook-service
|
||||
namespace: gatekeeper-system
|
||||
path: /v1/admit
|
||||
failurePolicy: Ignore
|
||||
name: validation.gatekeeper.sh
|
||||
namespaceSelector:
|
||||
matchExpressions:
|
||||
- key: control-plane
|
||||
operator: DoesNotExist
|
||||
- key: admission.gatekeeper.sh/ignore
|
||||
operator: DoesNotExist
|
||||
rules:
|
||||
- apiGroups:
|
||||
- '*'
|
||||
apiVersions:
|
||||
- '*'
|
||||
operations:
|
||||
- CREATE
|
||||
- UPDATE
|
||||
resources:
|
||||
- '*'
|
||||
sideEffects: None
|
||||
timeoutSeconds: 5
|
||||
- clientConfig:
|
||||
caBundle: Cg==
|
||||
service:
|
||||
name: gatekeeper-webhook-service
|
||||
namespace: gatekeeper-system
|
||||
path: /v1/admitlabel
|
||||
failurePolicy: Fail
|
||||
name: check-ignore-label.gatekeeper.sh
|
||||
rules:
|
||||
- apiGroups:
|
||||
- ""
|
||||
apiVersions:
|
||||
- '*'
|
||||
operations:
|
||||
- CREATE
|
||||
- UPDATE
|
||||
resources:
|
||||
- namespaces
|
||||
sideEffects: None
|
||||
timeoutSeconds: 5
|
||||
@@ -0,0 +1,31 @@
|
||||
apiVersion: templates.gatekeeper.sh/v1beta1
|
||||
kind: ConstraintTemplate
|
||||
metadata:
|
||||
name: restrictedpaths
|
||||
spec:
|
||||
crd:
|
||||
spec:
|
||||
names:
|
||||
kind: RestrictedPaths
|
||||
validation:
|
||||
openAPIV3Schema:
|
||||
properties:
|
||||
paths:
|
||||
type: array
|
||||
items: string
|
||||
targets:
|
||||
- target: admission.k8s.gatekeeper.sh
|
||||
rego: |
|
||||
package restrictedPaths
|
||||
|
||||
violation[{"msg": msg}] {
|
||||
# get all the paths for HostPath volumes:
|
||||
requested := {path | v := input.review.object.spec.volumes[_]
|
||||
path := v.hostPath.path}
|
||||
# get all the restricted paths:
|
||||
restricted := {path | path:= input.parameters.paths[_]}
|
||||
# if any match then the request is blocked:
|
||||
blocked := requested & restricted
|
||||
count(blocked) > 0
|
||||
msg := sprintf("HostPath '%v' is restricted", [blocked])
|
||||
}
|
||||
39
learn/learn-kubernetes-master/kiamol/ch16/lab/sleep.yaml
Normal file
39
learn/learn-kubernetes-master/kiamol/ch16/lab/sleep.yaml
Normal file
@@ -0,0 +1,39 @@
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: sleep
|
||||
labels:
|
||||
kiamol: ch16-lab
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
app: sleep
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: sleep
|
||||
kiamol: ch16-lab
|
||||
spec:
|
||||
containers:
|
||||
- name: sleep
|
||||
image: kiamol/ch03-sleep
|
||||
volumeMounts:
|
||||
- name: node-root
|
||||
mountPath: /node-root
|
||||
- name: node-bin
|
||||
mountPath: /node-bin
|
||||
- name: node-etc
|
||||
mountPath: /node-etc
|
||||
volumes:
|
||||
- name: node-root
|
||||
hostPath:
|
||||
path: /
|
||||
type: Directory
|
||||
- name: node-bin
|
||||
hostPath:
|
||||
path: /bin
|
||||
type: Directory
|
||||
- name: node-etc
|
||||
hostPath:
|
||||
path: /etc
|
||||
type: Directory
|
||||
@@ -0,0 +1,20 @@
|
||||
apiVersion: constraints.gatekeeper.sh/v1beta1
|
||||
kind: RestrictedPaths
|
||||
metadata:
|
||||
name: restrictedpaths-host
|
||||
spec:
|
||||
match:
|
||||
kinds:
|
||||
- apiGroups: [""]
|
||||
kinds: ["Pod"]
|
||||
labelSelector:
|
||||
matchExpressions:
|
||||
- key: kiamol
|
||||
operator: In
|
||||
values:
|
||||
- ch16-lab
|
||||
parameters:
|
||||
paths:
|
||||
- "/"
|
||||
- "/bin"
|
||||
- "/etc"
|
||||
@@ -0,0 +1,27 @@
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: sleep
|
||||
labels:
|
||||
kiamol: ch16-lab
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
app: sleep
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: sleep
|
||||
kiamol: ch16-lab
|
||||
spec:
|
||||
containers:
|
||||
- name: sleep
|
||||
image: kiamol/ch03-sleep
|
||||
volumeMounts:
|
||||
- name: node-var
|
||||
mountPath: /node-var
|
||||
volumes:
|
||||
- name: node-var
|
||||
hostPath:
|
||||
path: /var
|
||||
type: Directory
|
||||
Reference in New Issue
Block a user