Label current node using Kubernetes API. Usage ```./kube-api-labeler.sh http://kube-api-server:8000 service_account_token```

kube-api-labeler.sh

SERVER=$1
HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/local-hostname`
TOKEN=$2
$KEY="node-role"
$VALUE="applications"

while true; do
  if curl -s --insecure -k -H "Accept: application/json" -H "Authorization: Bearer $TOKEN" $SERVER/api/v1/nodes | grep $HOSTNAME
  then
    break
  fi
  echo "Waiting for this node to connect to the Kubernetes cluster in $SERVER"
  sleep 10
done

curl --insecure -k -v -H "Accept: application/json" -H "Authorization: Bearer $TOKEN" -XPATCH -d '{"metadata":{"labels":{"$KEY":"$VALUE"}}}' -H "Content-Type: application/merge-patch+json" $SERVER/api/v1/nodes/$HOSTNAME

Usage

$ ./kube-api-labeler.sh http://kube-api-server:8000 service_account_token