linkerd / polixy

Linkerd Policy Prototype

polixy

A prototype of policy for Linkerd.

See DESIGN.md for details.

Requires

• A Kubernetes 1.16+ cluster, available via kubectl;
• Linkerd 2.10+--so that workloads are labeled appropriately;

Running

Install polixy.linkerd.io CRDs

:; kubectl apply -f ./k8s/crds

Run the controller locally

We create a new polixy namespace with a controller ServiceAccount, with limited cluster access, and extract a kubeconfig to the local filesystem to use with the controller:

:; kubectl apply -f ./k8s/controller/sa.yml
:; KUBECONFIG=$(./k8s/controller/kubeconfig.sh) cargo run -p polixy-controller

Install example application (with policies)

:; kubectl apply -f ./k8s/emojivoto/ns.yml && kubectl apply -f ./k8s/emojivoto

Run a client

:; pod=$(kubectl get -n emojivoto po -l app.kubernetes.io/name=web -o 'jsonpath={.items[*].metadata.name}')
:; cargo run -p polixy-client -- get -n emojivoto $pod 8080

:; pod=$(kubectl get -n emojivoto po -l app.kubernetes.io/name=voting -o 'jsonpath={.items[*].metadata.name}')
:; cargo run -p polixy-client -- get -n emojivoto $pod 8080

:; pod=$(kubectl get -n emojivoto po -l app.kubernetes.io/name=voting -o 'jsonpath={.items[*].metadata.name}')
:; cargo run -p polixy-client -- watch -n emojivoto $pod 8801
`