test: k8s scale testing with KWOK

.gitignore

@@ -32,3 +32,6 @@ npm/debug/http
 *.srl
 
 go.work*
+
+# scale-test
+test/scale/generated/*

test/scale/README.md

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+## Overview
+Scripts for scale testing our components in AKS with fake and/or real resources.
+
+### Fake Resources
+Scripts can use [KWOK](https://github.com/kubernetes-sigs/kwok) to simulate running Pods. KWOK can instantly run thousands of fake VMs and Pods.
+
+This saves us from:
+1. Large resource costs.
+2. Hours waiting for VMs and Pods to bootup.
+
+## Usage
+1. Create AKS cluster with `--uptime-sla` and create any nodepools.
+2. If making KWOK Pods, run `run-kwok.sh` in the background.
+3. Scale with `test-scale.sh`. Specify number of Deployments, Pod replicas, NetworkPolicies, and labels for Pods.
+4. Test connectivity with `connectivity/test-connectivity.sh`.

test/scale/connectivity/allow-pinger.yaml

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+kind: NetworkPolicy
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: allow-pinger
+  namespace: scale-test
+spec:
+  podSelector:
+    matchLabels:
+      shared-lab-00001: val
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app: pinger
+      namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: connectivity-test
+  egress:
+  - to:
+    - podSelector:
+        matchLabels:
+          app: pinger
+      namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: connectivity-test
+  policyTypes:
+  - Ingress
+  - Egress

test/scale/connectivity/pinger.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: pinger
+  namespace: connectivity-test
+  labels:
+    app: pinger
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: pinger
+  template:
+    metadata:
+      labels:
+        app: pinger
+    spec:
+      nodeSelector:
+        connectivity-test: "true"
+      containers:
+      - command:
+        - /agnhost
+        - serve-hostname
+        - --tcp
+        - --http=false
+        - --port
+        - "80"
+        image: k8s.gcr.io/e2e-test-images/agnhost:2.33
+        imagePullPolicy: IfNotPresent
+        name: cont-80-tcp
+        ports:
+        - containerPort: 80
+          protocol: TCP