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85 lines
2.2 KiB
Markdown
85 lines
2.2 KiB
Markdown
<small>*[documentation](/README.md#documentation) / [Writing Policies](/documentation/writing-policies.md) / Generate Resources*</small>
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# Generate Resources
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```generate``` is used to create additional resources when a resource is created. This is useful to create supporting resources, such as role bindings for a new namespace.
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## Example 1
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````yaml
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: basic-policy
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spec:
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rules:
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- name: "Generate ConfigMap"
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match:
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resources:
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kinds:
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- Namespace
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generate:
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kind: ConfigMap # Kind of resource
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name: default-config # Name of the new Resource
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namespace: "{{request.object.metadata.name}}" # namespace that triggers this rule
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clone:
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namespace: default
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name: config-template
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- name: "Generate Secret (insecure)"
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match:
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resources:
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kinds:
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- Namespace
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generate:
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kind: Secret
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name: mongo-creds
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namespace: "{{request.object.metadata.name}}" # namespace that triggers this rule
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data:
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data:
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DB_USER: YWJyYWthZGFicmE=
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DB_PASSWORD: YXBwc3dvcmQ=
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metadata:
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labels:
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purpose: mongo
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````
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In this example new namespaces will receive 2 new resources after its creation:
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* A ConfigMap cloned from default/config-template.
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* A Secret with values DB_USER and DB_PASSWORD, and label ```purpose: mongo```.
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## Example 2
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````yaml
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: "default"
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spec:
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rules:
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- name: "deny-all-traffic"
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match:
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resources:
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kinds:
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- Namespace
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name: "*"
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generate:
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kind: NetworkPolicy
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name: deny-all-traffic
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namespace: "{{request.object.metadata.name}}" # namespace that triggers this rule
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data:
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spec:
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podSelector:
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matchLabels: {}
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matchExpressions: []
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policyTypes: []
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metadata:
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labels:
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policyname: "default"
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````
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In this example new namespaces will receive a NetworkPolicy that default denies all inbound and outbound traffic.
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---
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<small>*Read Next >> [Variables](/documentation/writing-policies-variables.md)*</small>
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