Minor enhancement to kubernetes install script

Specify correct pod CIDR and enable cni for kubelet

Change-Id: I550b7c60901fd87fb43ff1abc2f8179f6367a6b7

tools/deployment/install-k8s.sh

@@ -1,10 +1,13 @@
 #!/bin/bash
+
 set -ex
 
 : ${KUBE_VERSION:="v1.19.2"}
 : ${MINIKUBE_VERSION:="v1.16.0"}
 : ${UPSTREAM_DNS_SERVER:="8.8.4.4"}
 : ${DNS_DOMAIN:="cluster.local"}
+: ${CALICO_VERSION:="v3.17"}
+: ${CNI_MANIFEST_PATH:="/tmp/calico.yaml"}
 
 export DEBCONF_NONINTERACTIVE_SEEN=true
 export DEBIAN_FRONTEND=noninteractive
@@ -34,6 +37,11 @@ sudo -E apt-get install -y \
 sudo mkdir -p /data
 sudo mount -t tmpfs -o size=512m tmpfs /data
 
+# Download calico manifest
+if [ ! -f "$CNI_MANIFEST_PATH" ]; then
+  curl -Ss https://docs.projectcalico.org/"${CALICO_VERSION}"/manifests/calico.yaml -o ${CNI_MANIFEST_PATH}
+fi
+
 # Install minikube and kubectl
 URL="https://storage.googleapis.com"
 sudo -E curl -sSLo /usr/local/bin/minikube "${URL}"/minikube/releases/"${MINIKUBE_VERSION}"/minikube-linux-amd64
@@ -51,11 +59,17 @@ sudo -E minikube start \
   --driver=none \
   --wait=apiserver,system_pods,node_ready \
   --wait-timeout=6m0s \
+  --network-plugin=cni \
+  --cni=${CNI_MANIFEST_PATH} \
   --extra-config=kube-proxy.mode=ipvs \
   --extra-config=controller-manager.allocate-node-cidrs=true \
   --extra-config=controller-manager.cluster-cidr=192.168.0.0/16 \
+  --extra-config=kubeadm.pod-network-cidr=192.168.0.0/16 \
   --extra-config=kubelet.resolv-conf=/run/systemd/resolve/resolv.conf
 
+kubectl get nodes -o wide
+kubectl get pod -A
+
 cat <<EOF | kubectl replace -f -
 apiVersion: v1
 data:
@@ -86,11 +100,5 @@ metadata:
   namespace: kube-system
 EOF
 
-# Use tigera to deploy calico
-kubectl create -f https://docs.projectcalico.org/manifests/tigera-operator.yaml
-kubectl create -f https://docs.projectcalico.org/manifests/custom-resources.yaml
-
-kubectl get nodes -o wide
-kubectl get pod -A
 kubectl wait --for=condition=Ready pods --all -A --timeout=180s