dokku/plugins/domains/core-post-deploy

#!/usr/bin/env bash
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/domains/functions"
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x

trigger-domains-core-post-deploy() {
  declare desc="domains core-post-deploy plugin trigger"
  declare trigger="core-post-deploy"
  declare APP="$1"
  local RE_IPV4="$(get_ipv4_regex)"
  local RE_IPV6="$(get_ipv6_regex)"

  if [[ "$(plugn trigger proxy-type "$APP")" != "nginx" ]]; then
    return
  fi

  if [[ ! -f "/etc/nginx/sites-enabled/default" ]]; then
    return
  fi

  get_app_domains | while read -r domain; do
    if [[ "$domain" =~ $RE_IPV4 ]]; then
      dokku_log_warn "Detected IPv4 domain name with nginx proxy enabled."
      dokku_log_warn "Ensure the default nginx site is removed before continuing."
      break
    fi

    if [[ "$domain" =~ $RE_IPV6 ]]; then
      dokku_log_warn "Detected IPv6 domain name with nginx proxy enabled."
      dokku_log_warn "Ensure the default nginx site is removed before continuing."
      break
    fi
  done
}

trigger-domains-core-post-deploy "$@"