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Tiago Silva
7dde7c2811
This PR introduces a mechanism to control access to Pods in Kubernetes clusters based on access criteria defined in user Roles or Resource Access Requests.
New `Role` version - `v6` - introduced a new field `kubernetes_resources` that allows admins to restrict access to a subset of cluster resources based on the configuration provided.
This PR implements the resource control for `pods` and allows
```yaml
kubernetes_resources:
- kind: pod
name: nginx-*
namespace: default
- kind: pod
name: *
namespace: dev
```
It also implements the logic blocks for supporting Resource Access Requests to Kubernetes Pods. The tsh boilerplate is not included in this PR and will be included in future PRs.
An example of usage:
```
tsh request search --kind pod --kube-cluster=minikube
Name Namespace Labels Resource ID
--------------------------------- --------- -------------------------------------- ---------------------------------------------
nginx-deployment-6595874d85-6j2zm default app=nginx,pod-template-hash=6595874d85 /tele.teleport.local/pod/minikube/default/...
nginx-deployment-6595874d85-7xgmb default app=nginx,pod-template-hash=6595874d85 /tele.teleport.local/pod/minikube/default/...
nginx-deployment-6595874d85-c4kz8 default app=nginx,pod-template-hash=6595874d85 /tele.teleport.local/pod/minikube/default/...
test default run=test /tele.teleport.local/pod/minikube/default/...
To request access to these resources, run
> tsh request create --resource /tele.teleport.local/pod/minikube/default/nginx-deployment-6595874d85-6j2zm --resource /tele.teleport.local/pod/minikube/default/nginx-deployment-6595874d85-7xgmb --resource /tele.teleport.local/pod/minikube/default/nginx-deployment-6595874d85-c4kz8 --resource /tele.teleport.local/pod/minikube/default/test \
--reason <request reason>
```
Part of #18434