wlan-toolsmith/eksctl/wifi-289708231103/tip-wlan-main/installer

#!/bin/bash

. ./utils.sh

check_env
echo "Creating cluster:"
show_env
echo "Press ENTER to continue [or CTRL-C to exit]"
read enter

function cleanup()
{
    #echo "Cleanup $cstep err $have_err!"
    if [[ "$cstep" -ge 0 && "$have_err" -eq 1 ]] ; then
        local nextstep
        ((nextstep=cstep + 1))
        echo "To retry after the failed step, resume your install via $0 $nextstep"
    fi
}

function nextstep()
{
    ((cstep++))
    if [[ "${steps[$cstep]}" == "echo" ]] ; then
        f=" - SKIPPED"
    else
        f=""
    fi
    logx "[$cstep] Starting step: $1$f"
}

function enabled()
{
    if [[ "${steps[$cstep]}" == "echo" ]] ; then
        return 1
    fi
    [ -n "$1" ] && logx "[$cstep] $1"
    return 0
}

function err_handler()
{
    have_err=1
    #echo "Error!"
}

have_err=0
cstep=-1

trap cleanup EXIT
trap err_handler ERR

declare -a steps
max_steps=10
for ((i=0; i < $max_steps; i++)) ; do
    steps[$i]=""
done
if [ -n "$1" ] ; then
    for ((i=0; i < $1; i++)) ; do
        steps[$i]="echo"
    done
fi
logv start_install "$(date)"
cstep=0

#----------------------------------
# start the show:
set -e
set -x

#----------------------------------
echo "Determine caller identity"
if [ -n "$AWS_PROFILE" ] ; then
    account_id=$(aws sts get-caller-identity --query Account --output text --profile $AWS_PROFILE)
else
    account_id=$(aws sts get-caller-identity --query Account --output text)
fi
logv accountid $account_id
if [ -z "$account_id" ] ; then
    echo "Unable to determine caller-identity!"
    exit 1
fi
#----------------------------------
nextstep "Skip generating SSH Keypair id_rsa_${CLUSTER_NAME}"
if [ ! -f "id_rsa_${CLUSTER_NAME}" ] ; then
    if enabled ; then
        ssh-keygen -q -t rsa -N '' -f id_rsa_${CLUSTER_NAME} <<<y >/dev/null 2>&1
    fi
else
    echo "Skip generating SSH Keypair id_rsa_${CLUSTER_NAME} - exists"
fi

#----------------------------------
config_file="cluster.$CLUSTER_NAME.yaml"
nextstep "Generating cluster.yml file -> $config_file"
if enabled ; then
    envsubst < cluster.yaml > $config_file
fi

#----------------------------------
nextstep "Creating $CLUSTER_NAME EKS cluster in 10 seconds..."
sleep 10
nextstep "Creating $CLUSTER_NAME EKS cluster"
${steps[$cstep]} eksctl create cluster -f $config_file

#echo "Press ENTER to continue" ; read a

#----------------------------------
nextstep "Creating EBS CSI policy and SA"
role_name="${CLUSTER_NAME}-ebs-csi"
sa_name=ebs-csi-controller-sa
arn="arn:aws:iam::aws:policy/service-role/AmazonEBSCSIDriverPolicy"
${steps[$cstep]} eksctl create iamserviceaccount \
    --name $sa_name \
    --namespace kube-system \
    --cluster $CLUSTER_NAME \
    --role-name $role_name \
    --role-only \
    --attach-policy-arn $arn \
    --approve
#aws iam create-policy \
#    --policy-name KMS_Key_For_Encryption_On_EBS_Policy \
#    --policy-document file://kms-key-for-encryption-on-ebs.json \
#    --no-cli-pager
#aws iam attach-role-policy \
#    --policy-arn arn:aws:iam::$account_id:policy/KMS_Key_For_Encryption_On_EBS_Policy \
#    --role-name AmazonEKS_EBS_CSI_DriverRole
arn="arn:aws:iam::${account_id}:role/${role_name}"
${steps[$cstep]} eksctl create addon \
    --name aws-ebs-csi-driver \
    --cluster $CLUSTER_NAME \
    --service-account-role-arn $arn \
    --force
oidc_id=$(aws eks describe-cluster --name $CLUSTER_NAME --query "cluster.identity.oidc.issuer" --output text | cut -d '/' -f 5)
if [ -n "$oidc_id" ] ; then
    oidc_id=$(aws iam list-open-id-connect-providers | grep $oidc_id | cut -d "/" -f4)
fi
if [ -z "$oidc_id" ] ; then
    ${steps[$cstep]} eksctl utils associate-iam-oidc-provider --cluster $CLUSTER_NAME --approve
fi
#----------------------------------
nextstep "Creating External DNS policy"
role_name="${CLUSTER_NAME}-external-dns"
sa_name="${role_name}-sa"
arn="arn:aws:iam::${account_id}:policy/${role_name}"
# replace zone id
[ -z "$CLUSTER_ZONE_ID" ] && CLUSTER_ZONE_ID='*'
envsubst < route53policy.json.tpl > route53policy.json
${steps[$cstep]} aws iam create-policy \
    --policy-name $role_name \
    --policy-document file://route53policy.json
${steps[$cstep]} eksctl create iamserviceaccount \
    --name $sa_name \
    --namespace kube-system \
    --cluster $CLUSTER_NAME \
    --role-name $role_name \
    --attach-policy-arn $arn \
    --override-existing-serviceaccounts \
    --approve

#----------------------------------
nextstep "Creating ALB policy"
role_name="${CLUSTER_NAME}-alb-ingress"
sa_name="${role_name}-sa"
arn="arn:aws:iam::${account_id}:policy/${role_name}"
${steps[$cstep]} aws iam create-policy \
    --policy-name $role_name \
    --policy-document file://alb_ingress_policy.json
${steps[$cstep]} eksctl create iamserviceaccount \
    --cluster $CLUSTER_NAME \
    --namespace kube-system \
    --name $sa_name \
    --role-name $role_name \
    --attach-policy-arn $arn \
    --override-existing-serviceaccounts \
    --approve

#----------------------------------
nextstep "Updating kube config file"
#aws eks update-kubeconfig --name $CLUSTER_NAME --region $AWS_REGION
${steps[$cstep]} aws eks update-kubeconfig \
    --kubeconfig ./${CLUSTER_NAME}-kube-config \
    --region $AWS_REGION \
    --name $CLUSTER_NAME

#----------------------------------
set +xe
cstep=-1
logv endinstall "$(date)"
echo
echo "Cluster creation completed!"
echo
echo "Cluster info:"
kubectl cluster-info
echo
echo "Nodes:"
kubectl get nodes
echo
echo "Storage classes:"
kubectl get sc
echo
echo "All pods:"
kubectl get po -A
echo
echo "To update your current kube config run:"
echo "  aws eks update-kubeconfig --name $CLUSTER_NAME --region $AWS_REGION"