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kubernetes-letsencrypt-demo/kube-nginx-letsencrypt/entrypoint.sh
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#!/bin/bash | |
if [[ -z $EMAIL || -z $DOMAINS || -z $SECRET ]]; then | |
echo "EMAIL, DOMAINS, and SECRET env vars required" | |
env | |
exit 1 | |
fi | |
echo "Inputs:" | |
echo " EMAIL: $EMAIL" | |
echo " DOMAINS: $DOMAINS" | |
echo " SECRET: $SECRET" | |
NAMESPACE=$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace) | |
echo "Current Kubernetes namespce: $NAMESPACE" | |
echo "Starting HTTP server..." | |
python -m SimpleHTTPServer 80 & | |
PID=$! | |
echo "Starting certbot..." | |
certbot certonly --webroot -w $HOME -n --agree-tos --email ${EMAIL} --no-self-upgrade -d ${DOMAINS} | |
kill $PID | |
echo "Certbot finished. Killing http server..." | |
echo "Finiding certs. Exiting if certs are not found ..." | |
CERTPATH=/etc/letsencrypt/live/$(echo $DOMAINS | cut -f1 -d',') | |
ls $CERTPATH || exit 1 | |
echo "Creating update for secret..." | |
cat /secret-patch-template.json | \ | |
sed "s/NAMESPACE/${NAMESPACE}/" | \ | |
sed "s/NAME/${SECRET}/" | \ | |
sed "s/TLSCERT/$(cat ${CERTPATH}/fullchain.pem | base64 | tr -d '\n')/" | \ | |
sed "s/TLSKEY/$(cat ${CERTPATH}/privkey.pem | base64 | tr -d '\n')/" \ | |
> /secret-patch.json | |
echo "Checking json file exists. Exiting if not found..." | |
ls /secret-patch.json || exit 1 | |
# Update Secret | |
echo "Updating secret..." | |
curl \ | |
--cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt \ | |
-H "Authorization: Bearer $(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" \ | |
-XPATCH \ | |
-H "Accept: application/json, */*" \ | |
-H "Content-Type: application/strategic-merge-patch+json" \ | |
-d @/secret-patch.json https://kubernetes/api/v1/namespaces/${NAMESPACE}/secrets/${SECRET} \ | |
-k -v | |
echo "Done" |