DevOps-Bash-tools/vagrant/kubernetes/provision-kube2.sh

#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2020-08-14 13:16:04 +0100 (Fri, 14 Aug 2020)
#
#  https://github.com/harisekhon/bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/harisekhon
#

mkdir -pv /vagrant/logs

{

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x

bash_tools="/bash-tools"

# shellcheck disable=SC1090
source "$bash_tools/lib/utils.sh"

section "Running Vagrant Shell Provisioner Script - Kube2"

echo >&2

pushd /vagrant

kubeadm_join="/vagrant/kubeadm_join.sh"

# happens after kube1 anyway
#timestamp "waiting for 15 secs to give kube1 time to provision"
#sleep 15

timestamp "waiting for kube1 to bootstrap and generate kubectl join command at $kubeadm_join"
SECONDS=0
while ! [ -f "$kubeadm_join" ]; do
    if [ $SECONDS -gt 300 ]; then
        timestamp "Max wait time for $kubeadm_join exceeded, aborting k8s worker node join"
        exit 1
    fi
    sleep 1
done
echo >&2

# doesn't error out if already joined
timestamp "running $kubeadm_join"
chmod +x "$kubeadm_join"
"$kubeadm_join"

echo >&2

if ! [ -f ~/.kube/config ]; then
    timestamp "configuring kubectl"
    mkdir -pv ~/.kube
    cp -v /vagrant/.kube/config ~/.kube/
    echo >&2
fi

timestamp "K8S Nodes:"
kubectl get nodes

} 2>&1 | tee -a /vagrant/logs/provision-kube2.log