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Add doc for AllowedFlexVolume (#6563)
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wanghaoran1988 authored and steveperry-53 committed Dec 12, 2017
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Expand Up @@ -21,25 +21,26 @@ actions that a pod can perform and what it has the ability to access. The
run with in order to be accepted into the system. They allow an
administrator to control the following:

| Control Aspect | Field Name |
| ---------------------------------------------------------------------- | ------------------------------------------- |
| Running of privileged containers | `privileged` |
| Default set of capabilities that will be added to a container | `defaultAddCapabilities` |
| Capabilities that will be dropped from a container | `requiredDropCapabilities` |
| Capabilities a container can request to be added | `allowedCapabilities` |
| Controlling the usage of volume types | [`volumes`](#controlling-volumes) |
| The use of host networking | [`hostNetwork`](#host-network) |
| The use of host ports | `hostPorts` |
| The use of host's PID namespace | `hostPID` |
| The use of host's IPC namespace | `hostIPC` |
| The SELinux context of the container | [`seLinux`](#selinux) |
| The user ID | [`runAsUser`](#runasuser) |
| Configuring allowable supplemental groups | [`supplementalGroups`](#supplementalgroups) |
| Allocating an FSGroup that owns the pod's volumes | [`fsGroup`](#fsgroup) |
| Requiring the use of a read only root file system | `readOnlyRootFilesystem` |
| Running of a container that allow privilege escalation from its parent | [`allowPrivilegeEscalation`](#allowprivilegeescalation) |
| Control Aspect | Field Name |
| ---------------------------------------------------------------------- | ------------------------------------------- |
| Running of privileged containers | `privileged` |
| Default set of capabilities that will be added to a container | `defaultAddCapabilities` |
| Capabilities that will be dropped from a container | `requiredDropCapabilities` |
| Capabilities a container can request to be added | `allowedCapabilities` |
| Controlling the usage of volume types | [`volumes`](#controlling-volumes) |
| The use of host networking | [`hostNetwork`](#host-network) |
| The use of host ports | `hostPorts` |
| The use of host's PID namespace | `hostPID` |
| The use of host's IPC namespace | `hostIPC` |
| The SELinux context of the container | [`seLinux`](#selinux) |
| The user ID | [`runAsUser`](#runasuser) |
| Configuring allowable supplemental groups | [`supplementalGroups`](#supplementalgroups) |
| Allocating an FSGroup that owns the pod's volumes | [`fsGroup`](#fsgroup) |
| Requiring the use of a read only root file system | `readOnlyRootFilesystem` |
| Running of a container that allow privilege escalation from its parent | [`allowPrivilegeEscalation`](#allowprivilegeescalation) |
| Control whether a process can gain more privileges than its parent process | [`defaultAllowPrivilegeEscalation`](#defaultallowprivilegeescalation) |
| Whitelist of allowed host paths | [`allowedHostPaths`](#allowedhostpaths) |
| Whitelist of allowed host paths | [`allowedHostPaths`](#allowedhostpaths) |
| Whitelist of the flex volume drivers | [`allowedFlexVolumes`](#allowedflexvolumes) |

_Pod Security Policies_ are comprised of settings and strategies that
control the security features a pod has access to. These settings fall
Expand Down Expand Up @@ -162,6 +163,26 @@ spec:
- pathPrefix: "/foo"
```
### AllowedFlexVolumes
This specifies a whitelist of flex volume drivers that are allowed
to be used by flexVolume. An empty list means there is no restriction on the drivers. Please
make sure `volumes` contains the `flexVolume` volume type, no flex volume driver is allowed
otherwise. For example:

```yaml
apiVersion: extensions/v1beta1
kind: PodSecurityPolicy
metadata:
name: allow-flex-volumes
spec:
volumes:
- flexVolume
allowedFlexVolumes:
- driver: example/lvm
- driver: example/cifs
```

## Admission

[_Admission control_ with `PodSecurityPolicy`](/docs/admin/admission-controllers/#podsecuritypolicy)
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