Deploy FFR-k8s in kind

Signed-off-by: Jaime Caamaño Ruiz <jcaamano@redhat.com>

contrib/kind-common

@@ -576,3 +576,34 @@ kubectl_wait_dnsnameresolver_pods() {
   echo "Waiting for pods in dnsnameresolver-operator namespace to become ready (timeout ${timeout})..."
   kubectl wait -n dnsnameresolver-operator --for=condition=ready pods --all --timeout=${timeout}s
 }
+
+install_ffr_k8s() {
+  echo "Installing frr-k8s ..."
+  local tmpdir=$(mktemp -d)
+  pushd $tmpdir
+  git clone --depth 1 --branch v0.0.14 https://github.com/metallb/frr-k8s
+  popd
+
+  # apply the demo which will deploy an external FRR container that the cluster
+  # can peer with
+  pushd ${tmpdir}/frr-k8s/hack/demo
+  ./demo.sh
+  popd
+
+  # apply frr-k8s
+  kubectl apply -f ${tmpdir}/frr-k8s/config/all-in-one/frr-k8s.yaml
+  kubectl wait -n frr-k8s-system deployment frr-k8s-webhook-server --for condition=Available --timeout 2m
+  kubectl rollout status -n frr-k8s-system daemonset frr-k8s-daemon --timeout 2m
+
+  # apply a receive all configuration for a full cluster peering mesh as well as
+  # the external FRR
+  kubectl apply -f ${tmpdir}/frr-k8s/hack/demo/configs/receive_all.yaml
+  for node in $(kubectl get nodes -o jsonpath='{.items[*].metadata.name}' ); do
+    peers=$(kubectl get nodes -o jsonpath="{.items[?(@.metadata.name!='$node')].status.addresses[?(@.type=='InternalIP')].address}")
+    export node=$node
+    export peers=$peers
+    jinjanate --quiet ../dist/templates/ffr-k8s-config.yaml.j2 | kubectl apply -f -
+  done
+
+  rm -rf ${tmpdir}
+}

contrib/kind.sh

@@ -1173,3 +1173,6 @@ if [ "$KIND_INSTALL_KUBEVIRT" == true ]; then
   install_kubevirt
   install_kubevirt_ipam_controller
 fi
+if [ "$ENABLE_ROUTE_ADVERTISEMENTS" == true ]; then
+  install_ffr_k8s
+fi

dist/templates/ffr-k8s-config.yaml.j2

@@ -0,0 +1,21 @@
+apiVersion: frrk8s.metallb.io/v1beta1
+kind: FRRConfiguration
+metadata:
+  name: {{ node }}-receive-all
+  namespace: frr-k8s-system
+spec:
+  bgp:
+    routers:
+    - asn: 64512
+      neighbors:
+{%- set x = peers|string %}
+{%- for peer in x.split(' ') %}
+      - address: {{ peer }}
+        asn: 64512
+        toReceive:
+          allowed:
+            mode: all
+{%- endfor %}
+  nodeSelector:
+    matchLabels:
+      kubernetes.io/hostname: {{ node }}