Add KinD deployment env for developement (#277)

Signed-off-by: Mohamed Mahmoud <mmahmoud@redhat.com>

Makefile

@@ -160,6 +160,15 @@ tests-e2e: prereqs ## Run e2e tests
 	$(OCI_BIN) save -o ebpf-agent.tar localhost/ebpf-agent:test
 	GOOS=$(GOOS) go test -p 1 -timeout 30m -v -mod vendor -tags e2e ./e2e/...
 
+.PHONY: create-and-deploy-kind-cluster
+create-and-deploy-kind-cluster: prereqs ## Create a kind cluster and deploy the agent.
+	scripts/kind-cluster.sh
+
+.PHONY: destroy-kind-cluster
+destroy-kind-cluster: ## Destroy the kind cluster.
+	oc delete -f scripts/agent.yml
+	kind delete cluster
+
 ##@ Images
 
 # note: to build and push custom image tag use: IMAGE_ORG=myuser VERSION=dev s

README.md

@@ -93,6 +93,22 @@ and whether they worked (✅) or did not (❌):
 | Kind                          | 1.23.5             | ❌            | ✅          |
 | OpenShift                     | 1.23.3             | ✅            | ✅          |
 
+## Running on KinD cluster
+
+### How to run on kind cluster
+
+Install KinD and the ebpf agent and export KUBECONFIG
+```sh
+make create-and-deploy-kind-cluster
+export KUBECONFIG=$(pwd)/scripts/kubeconfig
+```
+
+### Deleting the kind cluster
+
+In order to delete the kind cluster:
+```sh
+make destroy-kind-cluster
+```
 
 ## Development receipts
 

scripts/agent.yml

+apiVersion: v1
+kind: Namespace
+metadata:
+  name: netobserv-privileged
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: netobserv-ebpf-agent
+  namespace: netobserv-privileged
+  labels:
+    k8s-app: netobserv-ebpf-agent
+spec:
+  selector:
+    matchLabels:
+      k8s-app: netobserv-ebpf-agent
+  template:
+    metadata:
+      labels:
+        k8s-app: netobserv-ebpf-agent
+    spec:
+      hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
+      containers:
+      - name: netobserv-ebpf-agent
+        image: localhost/ebpf-agent:test
+        securityContext:
+          privileged: true
+          runAsUser: 0
+        env:
+          - name: SAMPLING
+            value: "1"
+          - name: CACHE_ACTIVE_TIMEOUT
+            value: 200ms
+          - name: LOG_LEVEL
+            value: debug
+          - name: FLOWS_TARGET_HOST
+            valueFrom:
+              fieldRef:
+                fieldPath: status.hostIP
+          - name: FLOWS_TARGET_PORT
+            value: "9999"
+          - name: ENABLE_RTT
+            value: "true"
+          - name: ENABLE_PKT_DROPS
+            value: "true"
+          - name: ENABLE_DNS_TRACKING
+            value: "true"
+        volumeMounts:
+            - name: bpf-kernel-debug
+              mountPath: /sys/kernel/debug
+              mountPropagation: Bidirectional
+      volumes:
+        - name: bpf-kernel-debug
+          hostPath:
+            path: /sys/kernel/debug
+            type: Directory

scripts/kind-cluster.sh

+#!/usr/bin/env bash
+set -eux
+
+DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+KIND_IMAGE="kindest/node:v1.27.3"
+
+# deploy_kind installs the kind cluster
+deploy_kind() {
+  cat <<EOF | kind create cluster --image ${KIND_IMAGE} --config=- --kubeconfig=${DIR}/kubeconfig
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+networking:
+    podSubnet: $NET_CIDR_IPV4,$NET_CIDR_IPV6
+    serviceSubnet: $SVC_CIDR_IPV4,$SVC_CIDR_IPV6
+    ipFamily: $IP_FAMILY
+nodes:
+- role: control-plane
+  kubeadmConfigPatches:
+  - |
+    kind: ClusterConfiguration
+    apiServer:
+        extraArgs:
+            v: "5"
+    controllerManager:
+        extraArgs:
+            v: "5"
+    scheduler:
+        extraArgs:
+            v: "5"
+- role: worker
+- role: worker
+EOF
+}
+
+# install_netobserv-agent will install the daemonset
+# into each kind docker container
+install_netobserv-agent() {
+docker build . -t localhost/ebpf-agent:test
+kind load docker-image localhost/ebpf-agent:test
+kubectl apply -f ${DIR}/agent.yml
+}
+
+# print_success prints a little success message at the end of the script
+print_success() {
+  set +x
+  echo "Your kind cluster was created successfully"
+  echo "Run the following to load the kubeconfig:"
+  echo "export KUBECONFIG=${DIR}/kubeconfig"
+  set -x
+}
+
+KIND_CLUSTER_NAME="${KIND_CLUSTER_NAME:-kind}"
+IP_FAMILY=${IP_FAMILY:-dual}
+NET_CIDR_IPV4=${NET_CIDR_IPV4:-10.244.0.0/16}
+SVC_CIDR_IPV4=${SVC_CIDR_IPV4:-10.96.0.0/16}
+NET_CIDR_IPV6=${NET_CIDR_IPV6:-fd00:10:244::/48}
+SVC_CIDR_IPV6=${SVC_CIDR_IPV6:-fd00:10:96::/112}
+
+# At the minimum, deploy the kind cluster
+deploy_kind
+export KUBECONFIG=${DIR}/kubeconfig
+oc label node kind-worker node-role.kubernetes.io/worker=
+oc label node kind-worker2 node-role.kubernetes.io/worker=
+
+install_netobserv-agent
+
+# Print success at the end of this script
+print_success