istio_workshop.sh

## Setting variables for GKE
    export CLUSTER_NAME="central"
    export CLUSTER_ZONE="us-central1-b"
    export CLUSTER_KUBECONFIG=$WORK_DIR/$CLUSTER_NAME.context


# Variables for remote kops cluster
    export REMOTE_CLUSTER_NAME_BASE="remote"
    export REMOTE_CLUSTER_NAME=$REMOTE_CLUSTER_NAME_BASE.k8s.local
    export KOPS_STORE=gs://$PROJECT-kops-$REMOTE_CLUSTER_NAME_BASE
    export REMOTE_KUBECONFIG=$WORK_DIR/remote.context
    export NODE_COUNT=3
    export NODE_SIZE=n1-standard-4
    export ZONES=us-central1-a
    export INSTANCE_IP=$(curl -s api.ipify.org)
    export INSTANCE_CIDR=$INSTANCE_IP/32



# Variables for istio
    export ISTIO_DIR=$WORK_DIR/istio-$ISTIO_VERSION
    export ISTIO_CONFIG_DIR="$BASE_DIR/hybrid-multicluster/istio"
   
   
set -e

if [[ $OSTYPE == "linux-gnu" && $CLOUD_SHELL == true ]]; then

    ./common/install-tools.sh

    echo -e "\nMultiple tasks are running asynchronously to setup your environment.  It may appear frozen, but you can check the logs in $WORK_DIR for additional details in another terminal window."

    ./gke/provision-gke.sh &> ${WORK_DIR}/provision-gke.log &
    ./connect-hub/provision-remote-gce.sh &> ${WORK_DIR}/provision-remote.log &
    wait

    kubectx central && ./config-management/install-config-operator.sh
    kubectx remote && ./config-management/install-config-operator.sh

    ./hybrid-multicluster/istio-install.sh

    #./service-mesh/enable-service-mesh.sh
    ./service-mesh/enable-asm-beta.sh
else
    echo "This has only been tested in GCP Cloud Shell.  Only Linux (debian) is supported".
fi


# Variables
export PROJECT=$(gcloud config get-value project)
export WORK_DIR=${WORK_DIR:="${PWD}/workdir"}

## Install Tools
mkdir -p $WORK_DIR/bin

echo "### "
echo "### Begin Tools install"
echo "### "

## Install tree
if command -v tree 2>/dev/null; then
        echo "tree already installed."
else
        echo "Installing tree..."
        sudo apt-get install tree
        sudo mv /usr/bin/tree $WORK_DIR/bin
fi

## Install kubectx
if command -v kubectx 2>/dev/null; then
        echo "kubectx already installed."
else
        echo "Installing kubectx..."
        curl -sLO https://raw.githubusercontent.com/ahmetb/kubectx/"$KUBECTX_VERSION"/kubectx
        chmod +x kubectx
        mv kubectx $WORK_DIR/bin
        echo "kubectx installation complete."
fi

## Install Istio
if [ -d "$WORK_DIR/istio-$ISTIO_VERSION" ] && [ -x "$(command -v istioctl)" ]; then
        echo "Istio already installed."
else
        echo "Downloading Istio..."
        curl -L https://git.io/getLatestIstio | ISTIO_VERSION=$ISTIO_VERSION sh -
        cp istio-$ISTIO_VERSION/bin/istioctl $WORK_DIR/bin/.
        mv istio-$ISTIO_VERSION $WORK_DIR/
fi

## Install kops
if command -v kops 2>/dev/null; then
        echo "kops already installed."
else
        echo "Installing kops..."
        curl -sLO https://github.com/kubernetes/kops/releases/download/$KOPS_VERSION/kops-linux-amd64
        chmod +x kops-linux-amd64
        mv kops-linux-amd64 $WORK_DIR/bin/kops
        echo "kops installation complete."
fi