bootkube-up

#!/bin/bash
set -euo pipefail

MASTER_NODES=2
WORKER_NODES=1

ASSET_FOLDER=$1

createVolume() {
    VOLUME=$1-vol.qcow2
    qcow-tool create --size=6GiB ${VOLUME}
    corectl run -c stable -o  --name disk --volume=${VOLUME}
    corectl ssh disk "yes | sudo mke2fs -b 1024 -i 1024 -t ext4 -E lazy_itable_init=1 /dev/vda -F"
    corectl halt disk
}

bootSeed() {
    echo "starting bootkube server"
    corectl run -c stable -o --name $1 -N 2 -m 2048 --cloud_config ./${ASSET_FOLDER}/bootkube-user-data.yaml -r $1-vol.qcow2 -F
    corectl put ./${ASSET_FOLDER}.zip $1:/home/core/cluster.zip
    corectl ssh $1 "sudo mkdir -p /etc/kubernetes && sudo mkdir -p /etc/etcd/tls/etcd"
    corectl ssh $1 "unzip cluster.zip && rm cluster.zip && sudo chown -R core:core /home/core/${ASSET_FOLDER}"
    corectl ssh $1 "sudo cp /home/core/${ASSET_FOLDER}/tls/etcd-client* /etc/etcd/tls && sudo cp /home/core/${ASSET_FOLDER}/tls/etcd/* /etc/etcd/tls/etcd && sudo chown -R etcd:etcd /etc/etcd && sudo chmod 500 -R /etc/etcd"
    corectl ssh $1 "sudo cp /home/core/${ASSET_FOLDER}/auth/kubeconfig /etc/kubernetes/"
    corectl ssh $1 "sudo cp /home/core/${ASSET_FOLDER}/tls/ca.crt /etc/kubernetes/ && sudo chown core:core /etc/kubernetes/ca.crt"
}

bootServer() {
    echo "Starting $1"
    type=$(echo $1 | cut -d '-' -f1)
    corectl run -c stable -o --name $1 -N 2 -m 2048 --cloud_config ./${ASSET_FOLDER}/${type}-user-data.yaml -r $1-vol.qcow2 -F
    echo "Configuring $1"
    corectl put ./${ASSET_FOLDER}/auth/kubeconfig-kubelet $1:/tmp/kubeconfig
    corectl put ./${ASSET_FOLDER}/tls/ca.crt $1:/tmp/
    corectl ssh $1 "sudo cp /tmp/ca.crt /etc/kubernetes/ && sudo cp /tmp/kubeconfig /etc/kubernetes/ && sudo chown -R core:core /etc/kubernetes/"
}

for (( i=1; i<=${MASTER_NODES}; i++ )); do
  createVolume master-$i
done

for (( i=1; i<=${WORKER_NODES}; i++ )); do
  createVolume worker-$i
done

echo "generating userdata..."
cp bootkube.yaml ${ASSET_FOLDER}/bootkube-user-data.yaml
sed -i '' "s/ASSETVAR/${ASSET_FOLDER}/g" ${ASSET_FOLDER}/bootkube-user-data.yaml
cp setup.yaml ${ASSET_FOLDER}/master-user-data.yaml
sed -i '' "s/TYPE/master/g" ${ASSET_FOLDER}/master-user-data.yaml
cp setup.yaml ${ASSET_FOLDER}/worker-user-data.yaml
sed -i '' "s/TYPE/edge/g" ${ASSET_FOLDER}/worker-user-data.yaml
sed -i '' '/register-with-taints/d' ${ASSET_FOLDER}/worker-user-data.yaml
zip -r ${ASSET_FOLDER}.zip ${ASSET_FOLDER}

echo "staring seed server..."
bootSeed master-1
for (( i=2; i<=${MASTER_NODES}; i++ )); do
    bootServer master-$i
done

for (( i=1; i<=${WORKER_NODES}; i++ )); do
    bootServer worker-$i
done