Remote debugging k8s with pycharm

debug.sh

job_name=debug-`date +%Y%m%d%H%M%S`

kubectl create job ${job_name} --from cj/myveeva-v118273-app-maint
kubectl label pod -l job-name=${job_name} run=debug
kubectl wait --for condition=Ready pod -l job-name=${job_name}

pod_name=`kubectl  get pods -l job-name=${job_name} -o jsonpath='{.items[0].metadata.name}'`

echo "installing tools"
kubectl  exec  ${pod_name} -- sh -c "apk -q update; apk -q add bash curl jq openssh rsync vim unzip postgresql-client; pip install -q ipython"
tar cf - -s '/profile.sh/.bashrc/' profile.sh | kubectl  exec -i ${pod_name} -- tar xf - -C /root
kubectl  exec  ${pod_name} -- env > ~/.env

if [[ -d "~/Library/Application Support/JetBrains/Toolbox/apps/PyCharm-P/ch-0/211.7628.24/PyCharm 2021.1 EAP.app/Contents/plugins/python/helpers" ]]
then
    echo "Copying pycharm helpers"
    tar cpf - -j -C "/Users/scotts/Library/Application Support/JetBrains/Toolbox/apps/PyCharm-P/ch-0/211.7628.24/PyCharm 2021.1 EAP.app/Contents/plugins/python/helpers" . | kubectl  exec -i ${pod_name} -- sh -c "mkdir -p /root/.helpers
 tar xf - -j -C /root/.helpers"
fi

echo "copying ssh key"
tar cf - -C ~ -s /id_rsa.pub/authorized_keys/ .ssh/id_rsa.pub | kubectl  exec -i job/${job_name} -- tar xf - -C /root
tar cf - sshd_config | kubectl  exec -i job/${job_name} -- tar xf - -C /etc/ssh

# Set up port forwarding
kill -INT `lsof -t -i tcp:2222` 2>/dev/null
kubectl  port-forward job/${job_name} 2222:22 & PFPID=$!
function finish_ssh {
    kill ${PFPID}
}
trap finish_ssh EXIT INT

echo "starting sshd"
kubectl  exec -i job/${job_name} -- bash -c "chown root /root/.ssh/authorized_keys && chmod 0600 /root/.ssh/authorized_keys && echo 'root:*' | chpasswd --encrypted && ssh-keygen -q -f /etc/ssh/ssh_host_rsa_key -N '' && /usr/sbin/sshd"

kubectl exec -ti job/${job_name} -- bash
kubectl delete job ${job_name}