From b8188b792d99d4d73cb4ab312dbb7f2d43b99701 Mon Sep 17 00:00:00 2001
From: 12ww1160 <arne@confdroid.com>
Date: Tue, 2 Dec 2025 17:38:12 +0100
Subject: [PATCH] OP#176  fix envsubst

---
 start.sh | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/start.sh b/start.sh
index c3cea0c..c27a0ba 100755
--- a/start.sh
+++ b/start.sh
@@ -1,17 +1,19 @@
 #!/bin/bash
+
 set -e
 
-# Construct DATABASE_URL from individual vars if not set directly
-if [[ -z "${DATABASE_URL}" ]]; then
-  if [[ -z "${PG_USER}" || -z "${PG_PASSWORD}" || -z "${PG_HOST}" || -z "${PG_DBNAME}" ]]; then
-    echo "ERROR: DATABASE_URL not set and one of PG_USER/PG_PASSWORD/PG_HOST/PG_DBNAME missing"
-    exit 1
-  fi
-  export DATABASE_URL="postgresql://${PG_USER}:${PG_PASSWORD}@${PG_HOST}:${PG_PORT:-5432}/${PG_DBNAME}?sslmode=${PG_SSLMODE:-disable}"
-  echo "Constructed DATABASE_URL: ${DATABASE_URL}"
+if [[ "${DATABASE_URL}" == "" ]]; then
+  echo 'Missing DATABASE_URL'
+  echo 'example -e DATABASE_URL="user=<db user> password=<db user password> host=<db host> port=<db port> database=<db name>"'
+  exit 1
 fi
 
-# Strip single quotes from defaults (Alpine bash keeps them)
+trap shutdown INT
+
+function shutdown() {
+  pkill -SIGINT postgresql-prometheus-adapter
+}
+
 adapter_send_timeout=$(echo "${adapter_send_timeout:-'30s'}" | tr -d "'")
 web_listen_address=$(echo "${web_listen_address:-':9201'}" | tr -d "'")
 web_telemetry_path=$(echo "${web_telemetry_path:-'/metrics'}" | tr -d "'")