new: [zato] auto schedule crt renew from letsencrypt certs

zato/hooks/web_proxy-relation-joined

@@ -1,14 +1,13 @@
 #!/bin/bash
 
+. lib/common
+
 DOMAIN=$(relation-get domain) || exit 1
-DEST_LETSENCRYPT_FULLCHAIN="$SERVICE_DATASTORE/opt/zato/letsencrypt-fullchain.pem"
 CUSTOM_CREATE_LB_PATH="/opt/zato/3.2.0/code/zato-cli/src/zato/cli/create_lb.py"
 
 set -e
 
-mkdir -p "${DEST_LETSENCRYPT_FULLCHAIN%/*}"
-
-cat $DATASTORE/letsencrypt/etc/letsencrypt/live/$DOMAIN/{fullchain,privkey}.pem > "$DEST_LETSENCRYPT_FULLCHAIN" || exit 1
+merge_crt_letsencrypt "$DOMAIN"
 
 # adding custom config file to handle https in load_balancer with letsencrypt-fullchain certificate
 
@@ -20,4 +19,4 @@ services:
       - $DEST_LETSENCRYPT_FULLCHAIN:/opt/zato/letsencrypt-fullchain.pem
 "
 
-info "Configured $SERVICE_NAME load_balancer with HTTPS support."
+info "Configured $SERVICE_NAME load_balancer with HTTPS support."