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Merge pull request #3310 from mirwan/document_psp_auditing 

Document podsecuritypolicy_enabled and kubernetes_audit
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k8s-ci-robot 2018-09-15 02:09:37 -07:00 committed by GitHub
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docs/vars.md
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@ -126,6 +126,17 @@ node_labels:
label1_name: label1_value
label2_name: label2_value
```
* *podsecuritypolicy_enabled* - When set to `true`, enables the PodSecurityPolicy admission controller and defines two policies `privileged` (applying to all resources in `kube-system` namespace and kubelet) and `restricted` (applying all other namespaces).
Addons deployed in kube-system namespaces are handled.
* *kubernetes_audit* - When set to `true`, enables Auditing.
The auditing parameters can be tuned via the following variables (which default values are shown below):
* `audit_log_path`: /var/log/audit/kube-apiserver-audit.log
* `audit_log_maxage`: 30
* `audit_log_maxbackups`: 1
* `audit_log_maxsize`: 100
* `audit_policy_file`: "{{ kube_config_dir }}/audit-policy/apiserver-audit-policy.yaml"
By default, the `audit_policy_file` contains [default rules](https://github.com/kubernetes-incubator/kubespray/blob/master/roles/kubernetes/master/templates/apiserver-audit-policy.yaml.j2) that can be overriden with the `audit_policy_custom_rules` variable.
##### Custom flags for Kube Components
For all kube components, custom flags can be passed in. This allows for edge cases where users need changes to the default deployment that may not be applicable to all deployments. This can be done by providing a list of flags. Example: