Testing rolling-updates

gistfile1.txt

#!/bin/bash

set -x

export KOPS_STATE_STORE=s3://oscar-ai-k8s-dev
export KOPS_FEATURE_FLAGS="+DrainAndValidateRollingUpdate"

if [ "$#" -ne 1 ]; then
    echo "please pass the yaml file as a command line arg"
		exit 1
fi
KOPS_FILE=$1

CLUSTER_NAME=$(head -n 10 $KOPS_FILE | grep name | awk '{ print $2 }')

sed -i '' 's/1.5.3/1.5.2/' $KOPS_FILE

kops delete cluster $CLUSTER_NAME --yes
kops create -f $KOPS_FILE
kops create secret --name $CLUSTER_NAME sshpublickey admin -i ~/.ssh/id_rsa.pub
kops update cluster $CLUSTER_NAME --yes

until kops validate cluster $CLUSTER_NAME
do
	echo "Cluster did not validate"
	sleep 8
done

kubectl create -f $HOME/Workspace/src/k8s.io/kubernetes/examples/guestbook-go
kubectl scale --replicas 10 rc/guestbook
kubectl create -f $HOME/Workspace/src/k8s.io/kubernetes/examples/storage/cassandra/cassandra-service.yaml
kubectl create -f $HOME/Workspace/src/k8s.io/kubernetes/examples/storage/cassandra/cassandra-statefulset.yaml

while true; do
    status=$(kubectl get po cassandra-4 -o json | jq -j '.status.phase')
    if [ $status == "Running" ]; then
        echo "Cassandra found pod"
        break
    fi
    sleep 8
done

sed -i '' 's/1.5.2/1.5.3/' $KOPS_FILE
kops replace -f $KOPS_FILE
kops update cluster $CLUSTER_NAME --yes
kops rolling-update cluster $CLUSTER_NAME --yes -v 4
kops validate cluster $CLUSTER_NAME