Add L2 Load Balancer (#16)

Co-authored-by: Fedor Batonogov <f.batonogov@yandex.ru>

kubeadm/cilium/ippool.yaml

@@ -0,0 +1,8 @@
+---
+apiVersion: "cilium.io/v2alpha1"
+kind: CiliumLoadBalancerIPPool
+metadata:
+  name: "pool"
+spec:
+  blocks:
+    - cidr: "10.0.75.199/32"

kubeadm/cilium/l2-announcement-policy.yaml

@@ -0,0 +1,16 @@
+apiVersion: "cilium.io/v2alpha1"
+kind: CiliumL2AnnouncementPolicy
+metadata:
+  name: policy1
+spec:
+  serviceSelector:
+    matchLabels:
+      color: blue
+  nodeSelector:
+    matchExpressions:
+      - key: node-role.kubernetes.io/control-plane
+        operator: DoesNotExist
+  interfaces:
+    - ^eth[0-9]+
+  externalIPs: true
+  loadBalancerIPs: true

kubeadm/cilium/values.yaml

@@ -0,0 +1,6 @@
+kubeProxyReplacement: true
+k8sServiceHost: 10.0.75.80
+k8sServicePort: 8888
+l2announcements:
+  enabled: true
+devices: eth+