gke-istio.sh

# Source: https://gist.github.com/d5c93afc83535f0b5fec93bd03e447f4

####################
# Create a Cluster #
####################

# Only if you did not yet clone that repository
git clone \
    https://github.com/vfarcic/devops-catalog-code.git

cd devops-catalog-code

git pull

cd terraform-gke/simple

# Only if you are not already logged in
gcloud auth application-default login

gcloud container get-server-config \
    --region us-east1

# Replace `[...]` with a valid master version from the previous output.
# It must be at least 1.16 or newer (e.g., 1.16.13-gke.1).
export K8S_VERSION=[...]

terraform init

terraform apply \
    --var k8s_version=$K8S_VERSION

export KUBECONFIG=$PWD/kubeconfig

kubectl get nodes

cd ../../..

#################
# Install Istio #
#################

istioctl install --skip-confirmation

export ISTIO_HOST=$(kubectl \
    --namespace istio-system \
    get svc istio-ingressgateway \
    --output jsonpath="{.status.loadBalancer.ingress[0].ip}")

echo $ISTIO_HOST

# Repeat the `export` commands if the output is empty

#######################
# Destroy The Cluster #
#######################

cd devops-catalog-code/terraform-gke/simple

terraform destroy \
    --var k8s_version=$K8S_VERSION

cd ../../..