experiment generating multiple login users for pgbouncer

db/docker-compose.yml

@@ -37,7 +37,8 @@ services:
       - traefik
 
   pgbouncer:
-    image: edoburu/pgbouncer:latest
+    build:
+      context: ./pgbouncer
     container_name: ${DB_BOUNCER?DB_BOUNCER}
     restart: always
     environment:

db/pgbouncer/Dockerfile

@@ -0,0 +1,4 @@
+FROM edoburu/pgbouncer:latest
+
+# Custom step to generate all users from environment variables
+RUN ./generate-config.sh

db/pgbouncer/generate-config.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Define users and passwords
+declare -A users
+users=(
+  ["DB_USER"]="$DB_ROOT_PASSWORD"
+  ["FERRY_DB_USER"]="$FERRY_DB_PASSWORD"
+  ["HASURA_DB_USER"]="$HASURA_DB_PASSWORD"
+)
+
+output_file="/etc/pgbouncer/userlist.txt"
+
+for user in "${!users[@]}"; do
+  if [ -z "${users[$user]}" ]; then
+    echo "Error: Password for $user is not set in the environment variables."
+    exit 1
+  fi
+done
+
+> "$output_file" # Clear the file
+
+for user in "${!users[@]}"; do
+  password="${users[$user]}"
+  md5_hash=$(echo -n "md5$(echo -n "${password}${user}" | md5sum | awk '{print $1}')")
+  echo "\"$user\" \"$md5_hash\"" >> "$output_file"
+done