### CmdAdd Sidecar Workflow

`CmdAdd` is triggered when there is a new pod created. This runs on the node, in a chain of CNI plugins - Istio is
run after the main CNI sets up the pod IP and networking.

1. Check k8s pod namespace against exclusion list (plugin config)

## Proxy implementation

In its initial implementations, the ztunnel was actually implemented in 3 different ways: a bespoke Rust implementation, a bespoke Go implementation, and in Envoy.

In the end, [after evaluation](https://docs.google.com/document/d/1c2123cKuYsBDpIon9FFdctWTUIMFweSjgwG7r8l3818/edit), the decision was to move forward with a Rust implementation.

lint-helm-global:
	find manifests -name 'Chart.yaml' -print0 | ${XARGS} -L 1 dirname | xargs -r helm lint

lint: lint-python lint-copyright-banner lint-scripts lint-go lint-dockerfiles lint-markdown lint-yaml lint-licenses lint-helm-global check-agent-deps ## Runs all linters.
	@bin/check_samples.sh
	@testlinter
	@envvarlinter istioctl pilot security

# Allow-list:

CERTIFICATE NAME                                         TYPE     STATUS           VALID CERT     SERIAL NUMBER                        NOT AFTER                NOT BEFORE
spiffe://cluster.local/ns/istio-system/sa/istiod         Leaf     Available        true           e5dfb59150b2ba7f108d93dcec5aa613     2033-03-22T13:04:57Z     2023-03-21T13:02:57Z