From 905b4f87db83362ba7b29eaf7c92b6a0b98fb34d Mon Sep 17 00:00:00 2001
From: vijay <vijayjamesmani@gmail.com>
Date: Fri, 9 Jan 2026 01:52:25 +0000
Subject: [PATCH] Add postgres_new_db_user

---
 postgres_new_db_user | 49 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 postgres_new_db_user

diff --git a/postgres_new_db_user b/postgres_new_db_user
new file mode 100644
index 0000000..3ab66ea
--- /dev/null
+++ b/postgres_new_db_user
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+echo "=== PostgreSQL Database & User Setup ==="
+
+read -p "Enter new database name: " DB_NAME
+read -p "Enter new username: " DB_USER
+read -s -p "Enter new password: " DB_PASS
+echo ""
+read -p "Enter PostgreSQL superuser (default: postgres): " PG_SUPER
+PG_SUPER=${PG_SUPER:-postgres}
+
+# Optional: change host/port if needed
+PG_HOST="localhost"
+PG_PORT="5432"
+
+echo ""
+echo "Creating user and database..."
+
+# Create user
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -tc "SELECT 1 FROM pg_roles WHERE rolname='$DB_USER';" | grep -q 1 \
+  || psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -c "CREATE ROLE $DB_USER WITH LOGIN PASSWORD '$DB_PASS';"
+
+# Create database
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -tc "SELECT 1 FROM pg_database WHERE datname='$DB_NAME';" | grep -q 1 \
+  || psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -c "CREATE DATABASE $DB_NAME OWNER $DB_USER;"
+
+echo "Granting permissions..."
+
+# Grant DB connect
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "GRANT CONNECT, TEMPORARY ON DATABASE $DB_NAME TO $DB_USER;"
+
+# Schema permissions
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "GRANT USAGE, CREATE ON SCHEMA public TO $DB_USER;"
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "ALTER SCHEMA public OWNER TO $DB_USER;"
+
+# Existing tables & sequences
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO $DB_USER;"
+psql -U "$PG_SUPER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO $DB_USER;"
+
+# Future tables & sequences
+psql -U "$DB_USER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON TABLES TO $DB_USER;"
+psql -U "$DB_USER" -h "$PG_HOST" -p "$PG_PORT" -d "$DB_NAME" -c "ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON SEQUENCES TO $DB_USER;"
+
+echo ""
+echo "=== Setup Complete ==="
+echo "Database: $DB_NAME"
+echo "User: $DB_USER"
+echo "Schema owner: $DB_USER"
+echo "Full R/W on existing + future tables granted."