build(repo): structure the repo into postgresql subdirectory with separate template and internal tests

postgresql/tests/setup_rds.sh

@@ -0,0 +1,101 @@
+#!/bin/bash
+set -e
+
+# Change directory to script's location
+cd "$(dirname "$0")"
+
+DROP_DB=false
+while [[ "$#" -gt 0 ]]; do
+    case $1 in
+        --drop) DROP_DB=true ;;
+    esac
+    shift
+done
+
+# Source credentials from db_credentials file
+if [ -f "./db_credentials" ]; then
+    echo "Loading credentials from db_credentials..."
+    source ./db_credentials
+else
+    echo "Error: db_credentials file not found in $(pwd)"
+    exit 1
+fi
+
+# 1. Provide the PEM key for AWS RDS if not exists
+if [ -n "$DB_PEM_URL" ] && [ ! -f "$DB_SSL_ROOT_CERT" ]; then
+    echo "Downloading SSL root certificate from AWS..."
+    wget -qO "$DB_SSL_ROOT_CERT" "$DB_PEM_URL"
+fi
+
+# Ensure PEM has right permissions if it exists
+if [ -f "$DB_SSL_ROOT_CERT" ]; then
+    chmod 600 "$DB_SSL_ROOT_CERT"
+fi
+
+# 2. Login as the RDS admin user (postgres) to create the zabbix user/database
+echo "Connecting to PostgreSQL to create Zabbix user and database..."
+
+export PGPASSWORD="$DB_PASSWORD"
+
+# Create the zabbix user if it doesn't already exist
+psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -v ON_ERROR_STOP=1 <<EOF
+DO \$\$
+BEGIN
+    IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = '$ZBX_DB_USER') THEN
+        CREATE ROLE $ZBX_DB_USER WITH LOGIN PASSWORD '$ZBX_DB_PASSWORD';
+    END IF;
+END
+\$\$;
+EOF
+
+echo "User '$ZBX_DB_USER' verified/created."
+
+# Create the zabbix database if it doesn't already exist
+DB_EXISTS=$(psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -t -c "SELECT 1 FROM pg_database WHERE datname='$ZBX_DB_NAME'" | tr -d '[:space:]')
+
+if [ "$DROP_DB" = "true" ] && [ "$DB_EXISTS" = "1" ]; then
+    echo -e "\n========================================"
+    echo -e "              WARNING!                  "
+    echo -e "========================================"
+    echo -e "You requested to completely DROP and RE-INITIATE the database '$ZBX_DB_NAME'."
+    echo -e "This will delete ALL data. Are you sure you want to proceed?"
+    read -p "Type 'yes' to proceed: " confirm_drop
+    if [ "$confirm_drop" != "yes" ]; then
+        echo "Database drop cancelled. Exiting."
+        exit 1
+    fi
+    echo "Terminating active connections and dropping database..."
+    psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -c "SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = '$ZBX_DB_NAME' AND pid <> pg_backend_pid();"
+    psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -c "DROP DATABASE $ZBX_DB_NAME;"
+    DB_EXISTS=""
+fi
+
+if [ "$DB_EXISTS" != "1" ]; then
+    echo "Database '$ZBX_DB_NAME' does not exist. Creating..."
+    psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -c "CREATE DATABASE $ZBX_DB_NAME OWNER $ZBX_DB_USER;"
+else
+    echo "Database '$ZBX_DB_NAME' already exists."
+fi
+
+# Grant necessary permissions
+psql "host=$DB_HOST port=$DB_PORT dbname=$DB_NAME user=$DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT" -c "GRANT ALL PRIVILEGES ON DATABASE $ZBX_DB_NAME TO $ZBX_DB_USER;"
+
+echo ""
+echo "================================================================================"
+echo "✅ Initialization Successful!"
+echo "================================================================================"
+echo "You can now use these settings in your Zabbix server configuration:"
+echo "--------------------------------------------------------------------------------"
+echo "DBHost=$DB_HOST"
+echo "DBName=$ZBX_DB_NAME"
+echo "DBUser=$ZBX_DB_USER"
+echo "DBPassword=$ZBX_DB_PASSWORD"
+echo "DBPort=$DB_PORT"
+echo "DBTLSConnect=verify_full"
+echo "DBTLSCAFile=$(realpath $DB_SSL_ROOT_CERT)"
+echo "================================================================================"
+echo ""
+echo "To connect manually for testing directly to the Zabbix DB:"
+echo "export PGPASSWORD=\"$ZBX_DB_PASSWORD\""
+echo "psql \"host=$DB_HOST port=$DB_PORT dbname=$ZBX_DB_NAME user=$ZBX_DB_USER sslmode=$DB_SSL_MODE sslrootcert=$DB_SSL_ROOT_CERT\""
+echo ""